Repository: kubespray/kubespray-cli
Branch: master
Commit: e2a0670b8daf
Files: 14
Total size: 112.3 KB
Directory structure:
gitextract_tsd1_jj_/
├── .gitignore
├── HISTORY.rst
├── LICENCE
├── README.md
├── bin/
│ └── kubespray
├── setup.cfg
├── setup.py
└── src/
└── kubespray/
├── __init__.py
├── cloud.py
├── common.py
├── configure.py
├── deploy.py
├── files/
│ └── .kubespray.yml
└── inventory.py
================================================
FILE CONTENTS
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FILE: .gitignore
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# Created by .ignore support plugin (hsz.mobi)
### Example user template template
### Example user template
# IntelliJ project files
.idea
*.iml
out
gen
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FILE: HISTORY.rst
================================================
=======
History
=======
0.1.0 (2016-3-20)
------------------
* First release on PyPI.
================================================
FILE: LICENCE
================================================
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
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How to Apply These Terms to Your New Programs
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Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
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This is free software, and you are welcome to redistribute it
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The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
================================================
FILE: README.md
================================================
Kubespray wrapper
=============
This tool helps to deploy a kubernetes cluster with ansible.
Example on GCE:
[](https://asciinema.org/a/065mhh5pzmxcwxgp6evebarvd?speed=4)
Requirements
============
- **Ansible v2.3 (or newer)**
- The current user must have its ssh **public key** installed on the
remote servers.
- The remote user (option --user) must be in the sudoers with no
password
Installation
============
### Python pip
sudo pip2 install kubespray
Config file
-----------
A config file can be updated (yaml). (default: *~/.kubespray.yml* ) </br>
This file contains default values for some parameters that don't change
frequently </br>
**Note** these values are **overwritten** by the command line.
# Common options
# ---------------
# Path where the kubespray ansible playbooks will be installed
# Defaults to current user's home directory if not set
# kubespray_path: "/tmp"
# Default inventory path
kubespray_git_repo: "https://github.com/kubernetes-incubator/kubespray.git"
# Logging options
loglevel: "info"
# Amazon web services options
# ---
# aws_access_key: "<key>"
# aws_secret_key: "<secret_key>"
# key_name: "<keypair_name>"
# ami: "<aws_ami>"
# masters_instance_type: "<masters_instance_type>"
# nodes_instance_type: "<nodes_instance_type>"
# etcds_instance_type: "<etcds_instance_type>"
# masters_instance_profile_name: "<master_instance_profile_name>"
# nodes_instance_profile_name: "<nodes_instance_profile_name>"
# etcds_instance_profile_name: "<etcds_instance_profile_name>"
# security_group_name: "<security_group_name>"
# security_group_id: "<security_group_id>"
# assign_public_ip: True
# vpc_subnet_id: "<vpc_id>"
# region: "<aws_region>"
# tags:
# - type: k8s
# OpenStack options
# ---
# os_auth_url: "https://"
# os_username: "k8s"
# os_password: "secret"
# os_project_name: "k8s"
# masters_flavor: "m1.small"
# nodes_flavor: "m1.small"
# etcds_flavor: "m1.small"
# image: "wily-server-cloudimg-amd64"
# network: "my-network"
# sshkey: "my-pub-key"
...
Basic usage
-----------
**Note**: You may want to choose the architecture of your cluster. </br>
Here are 3 examples:
* 3 vms, all 3 have etcd installed, all 3 are nodes (running pods), 2 of them run master components
```
kubespray [prepare|aws|gce] --nodes 3
```
* 6 vms, 2 are nodes and masters, 1 is node only and a distinct etcd cluster
```
kubespray [prepare|aws|gce] --nodes 3 --etcds 3
```
* 8 vms, 2 distinct masters, 3 nodes and 3 etcds
```
kubespray [prepare|aws|gce] --nodes 3 --etcds 3 --masters 2
```
You should have at least 3 nodes but you can spawn only one instance for
tests purposes.
### Generate inventory for a baremetal cluster
If the servers are already available you can use the argument **prepare**
The command below will just clone the git repository and creates the
inventory.
The hostvars must be separated by a **comma without spaces**
kubespray prepare --nodes node1[ansible_ssh_host=10.99.21.1] node2[ansible_ssh_host=10.99.21.2] node3[ansible_ssh_host=10.99.21.3] [--etcds N+] [--masters N+]
### Run instances and generate the inventory on Clouds
**AWS**
In order to create vms on AWS you can either edit the config file *~/.kubespray.yml* or set the options with the argument **aws**
if the config file is filled with the proper information you just need to run the following command
kubespray aws --nodes 3 [--etcds N+] [masters N+] [--nodes-instance-type m4.large]
Another example which download kubespray's repo in a defined directory and set the cluster name
kubespray aws --nodes 3 -p /tmp/mykubespray --cluster-name foobar
**GCE**
In order to create vms on GCE you can either edit the config file */etc/kubespray/kubespray.yml* or set the options with the argument **gce**
if the config file is filled with the proper information you just need to run the following command
kubespray gce --nodes 3
Another example if you already have a kubespray repository in your home dir
kubespray gce --nodes 3 --noclone --cluster-name foobar [--nodes-machine-type n1-standard-4]
**OpenStack**
In order to create vms on a OpenStack cluster you can either edit the config file *~/.kubespray.yml* or set the options with the argument **openstack**.
The options **network** and **sshkey** are required and need to be created before running kubespray, you can either create them using the OpenStack Dashboard or the OpenStack CLI clients. Running the ansible routines that kubespray will invoke requires to have installed the [openstack cli tools](http://docs.openstack.org/user-guide/common/cli_install_openstack_command_line_clients.html) and openstack [shade](http://docs.openstack.org/infra/shade/installation.html).
Create a network using the OpenStack Neutron client
# create network
$ neutron net-create k8s-network
Created a new network:
+-----------------+--------------------------------------+
| Field | Value |
+-----------------+--------------------------------------+
| admin_state_up | True |
| id | 18989cb2-d9fc-4abd-85e8-fe5b33df3541 |
| mtu | 0 |
| name | k8s-network |
| router:external | False |
| shared | False |
| status | ACTIVE |
| subnets | |
| tenant_id | 5de2cf232a674b05983b61fdc1ea67aa |
+-----------------+--------------------------------------+
# create subnet
$ neutron subnet-create --name k8s-subnet --dns-nameserver 8.8.8.8 --enable-dhcp --allocation_pool "start=192.168.0.100,end=192.168.0.200" k8s-network 192.168.0.0/24
Created a new subnet:
+-------------------+----------------------------------------------------+
| Field | Value |
+-------------------+----------------------------------------------------+
| allocation_pools | {"start": "192.168.0.100", "end": "192.168.0.200"} |
| cidr | 192.168.0.0/24 |
| dns_nameservers | |
| enable_dhcp | True |
| gateway_ip | 192.168.0.1 |
| host_routes | |
| id | fc5a5436-de3a-4d68-9846-d977d047d6d7 |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name | k8s-subnet |
| network_id | 18989cb2-d9fc-4abd-85e8-fe5b33df3541 |
| subnetpool_id | |
| tenant_id | 5de2cf232a674b05983b61fdc1ea67aa |
+-------------------+----------------------------------------------------+
# create a router
$ neutron router-create k8s-router
Created a new router:
+-----------------------+--------------------------------------+
| Field | Value |
+-----------------------+--------------------------------------+
| admin_state_up | True |
| external_gateway_info | |
| id | 69027fa4-239b-4bae-89bc-3040c365ee4d |
| name | k8s-router |
| routes | |
| status | ACTIVE |
| tenant_id | 5de2cf232a674b05983b61fdc1ea67aa |
+-----------------------+--------------------------------------+
# set gateway network, external_network is the name of the external network defined by your OpenStack provider
$ neutron router-gateway-set k8s-router external_network
Set gateway for router k8s-router
# add k8s-subnet to k8s-router, plug the virtual cable
$ neutron router-interface-add k8s-router subnet=k8s-subnet
Added interface a62ca3b4-3302-45b6-803e-f87a4f43b4b6 to router k8s-router.
Upload a ssh key in order to connect to the vms using the OpenStack Nova client
# import SSH Public Key with name k8s-pub-key
$ nova keypair-add --pub-key id_rsa.pub k8s-pub-key
Once the preparation have been completed you can enter the required options to the config file */etc/kubespray/kubespray.yml*:
...
network: "k8s-network"
sshkey: "k8s-pub-key"
...
If the config file is filled with the proper information you just need to run the following command
kubespray openstack --masters 2 --nodes 2 --etcds 3
Another example if you already have a kubespray repository in your home dir
kubespray openstack --masters 2 --nodes 2 --etcds 3 --noclone --cluster-name foobar
**Add a node to an existing cluster**
It's possible to add nodes to a running cluster, </br>
these newly added nodes will act as node only (no etcd, no master components)
Add a node
kubespray [aws|gce] --add --nodes 1
Then deploy the cluster with the same options as the running cluster.
### Deploy cluster
The last step is to run the cluster deployment.
**Note**:
- default network plugin : flannel (vxlan) default
- default kubespray\_path : "/home/\<current\_user\>/kubespray"
- inventory path : "\<kubespray\_path\>/inventory/inventory.cfg".
- The option `--inventory` allows to use an existing inventory (file or dynamic)
- On coreos (--coreos) the directory **/opt/bin** must be writable
- You can use all Ansible's variables with
`--ansible-opts '-e foo=bar -e titi=toto -vvv'` (the value must be enclosed by simple quotes)
some examples:
Deploy with the default options on baremetal
kubespray deploy
Deploy on AWS using a specific kubespray directory and set the api password
kubespray deploy --aws --passwd secret -p /tmp/mykubespray -n weave
Deploy a kubernetes cluster on CoreOS servers located on GCE
kubespray deploy -u core -p /kubespray-dc1 --gce --coreos --cluster-name mykube --kube-network 10.42.0.0/16
================================================
FILE: bin/kubespray
================================================
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
#
# This file is part of Kubespray.
#
# Kubespray is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Foobar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Foobar. If not, see <http://www.gnu.org/licenses/>.
__version__ = '0.5.2'
import os
import argparse
import getpass
try:
from ansible.utils.display import Display
except ImportError:
raise ImportError('Cannot find Ansible: Please check your installation (required version 2)')
from kubespray.common import clone_kubespray_git_repo
from kubespray.configure import Config
from kubespray.inventory import CfgInventory
from kubespray.deploy import RunPlaybook
from kubespray.cloud import AWS, GCE, OpenStack
display = Display()
def prepare(options):
clone_kubespray_git_repo(options)
Cfg = CfgInventory(options, 'metal')
Cfg.write_inventory(
options['masters_list'],
options['nodes_list'],
options['etcds_list']
)
def aws(options):
clone_kubespray_git_repo(options)
A = AWS(options)
A.gen_ec2_playbook()
A.create_instances()
A.write_inventory()
def gce(options):
clone_kubespray_git_repo(options)
G = GCE(options)
G.gen_gce_playbook()
G.create_instances()
G.write_inventory()
def openstack(options):
clone_kubespray_git_repo(options)
O = OpenStack(options)
O.gen_openstack_playbook()
O.create_instances()
O.write_inventory()
def deploy(options):
Run = RunPlaybook(options)
Run.ssh_prepare()
Run.deploy_kubernetes()
if __name__ == '__main__':
# Main parser
parser = argparse.ArgumentParser(
prog='kubespray',
description='%(prog)s Kubernetes cluster deployment tool',
add_help=False
)
subparsers = parser.add_subparsers(help='commands')
parser.add_argument(
'-v', '--version', action='version',
version='%(prog)s'+' %s' % __version__
)
# Options shared by the first step subparsers (prepare, gce, aws)
firststep_parser = argparse.ArgumentParser(add_help=False)
firststep_parser.add_argument(
'--noclone', default=False, action='store_true', dest='noclone',
help='Do not clone the git repo. Useful when the repo is already downloaded'
)
# Options shared by all subparsers
parent_parser = argparse.ArgumentParser(add_help=False)
parent_parser.add_argument(
'-p', '--path', dest='kubespray_path',
help='Where the Ansible playbooks are installed. Default: ~/.kubespray'
)
parent_parser.add_argument(
'--config', dest='configfile',
help="Config file path. Defaults to ~/.kubespray.yml"
)
parent_parser.add_argument(
'-y', '--assumeyes', default=False, dest='assume_yes', action='store_true',
help='When a yes/no prompt would be presented, assume that the user entered "yes"'
)
parent_parser.add_argument(
'-i', '--inventory', dest='inventory_path',
help='Inventory file path. Defaults to <path parameter>/inventory/inventory.cfg'
)
# prepare
prepare_parser = subparsers.add_parser(
'prepare', parents=[parent_parser, firststep_parser],
help='generate inventory and create vms on cloud providers'
)
prepare_parser.add_argument('--add', dest='add_node', action='store_true',
help="Add node to an existing cluster"
)
prepare_parser.add_argument(
'--etcds', dest='etcds_list', metavar='N', nargs='+', default=[],
help='Number of etcd, these instances will just act as etcd members'
)
prepare_parser.add_argument(
'--masters', dest='masters_list', metavar='N', nargs='+', default=[],
help='Number of masters, these instances will not run workloads, master components only'
)
prepare_parser.add_argument(
'--nodes', dest='nodes_list', metavar='N', nargs='+',
required=True, help='List of nodes'
)
prepare_parser.set_defaults(func=prepare)
# aws
aws_parser = subparsers.add_parser(
'aws', parents=[parent_parser, firststep_parser],
help='Create AWS instances and generate inventory'
)
aws_parser.add_argument(
'--access-key', dest='aws_access_key', help='AWS access key'
)
aws_parser.add_argument(
'--secret-key', dest='aws_secret_key', help='AWS secret key'
)
aws_parser.add_argument(
'--masters-instance-type', dest='masters_instance_type',
help='AWS instance type for Masters (default: t2.medium)'
)
aws_parser.add_argument(
'--nodes-instance-type', dest='nodes_instance_type',
help='AWS instance type for Nodes (default: t2.large)'
)
aws_parser.add_argument(
'--etcds-instance-type', dest='etcds_instance_type',
help='AWS instance type for Etcd members (default: t2.small)'
)
aws_parser.add_argument(
'--keypair', dest='key_name', help='AWS key pair name'
)
aws_parser.add_argument('--region', dest='region', help='AWS region')
sg_group = aws_parser.add_mutually_exclusive_group()
sg_group.add_argument(
'--security-group-name', dest='security_group_name',
help='AWS security group Name'
)
sg_group.add_argument(
'--security-group-id', dest='security_group_id',
help='AWS security group ID. Uses the "default" security group if not specified.'
)
aws_parser.add_argument(
'--assign-public-ip', default=None, dest='assign_public_ip', action='store_true',
help='when provisioning within vpc, assign a public IP address'
)
aws_parser.add_argument(
'--use-private-ip', default=None, dest='use_private_ip', action='store_true',
help='If set to true, using the private ip for SSH connection'
)
aws_parser.add_argument('--vpc-id', dest='aws_vpc_id', help='EC2 VPC ID')
aws_parser.add_argument(
'--vpc-subnet', dest='vpc_subnet_id', help='EC2 VPC subnet ID'
)
aws_parser.add_argument('--ami', dest='ami', help='AWS AMI')
aws_parser.add_argument(
'--cluster-name', dest='cluster_name', help='Name of the cluster'
)
aws_parser.add_argument(
'--tags', dest='tags', help='List of VM tags of the form \'name=value\'', nargs="+", metavar="NAME=VALUE"
)
aws_parser.add_argument('--add', dest='add_node', action='store_true',
help="Add node to an existing cluster")
aws_parser.add_argument(
'--etcd', dest='etcds_count', type=int,
help='Number of etcd, these instances will just act as etcd members'
)
aws_parser.add_argument(
'--masters', dest='masters_count', type=int,
help='Number of masters, these instances will not run workloads, master components only'
)
aws_parser.add_argument(
'--nodes', dest='nodes_count', type=int,
help='Number of nodes', required=True
)
aws_parser.set_defaults(func=aws)
# gce
gce_parser = subparsers.add_parser(
'gce', parents=[parent_parser, firststep_parser],
help='Create GCE machines and generate inventory'
)
gce_parser.add_argument(
'--pem_file', dest='pem_file', help='GCE ssh pem file path'
)
gce_parser.add_argument(
'--credentials_file', dest='credentials_file',
help='GCE credentials json file path'
)
gce_parser.add_argument(
'--zone', dest='zone', help='GCE zone'
)
gce_parser.add_argument(
'--masters-machine-type', dest='masters_machine_type',
help='GCE machine type for Masters (default: n1-standard-2)'
)
gce_parser.add_argument(
'--nodes-machine-type', dest='nodes_machine_type',
help='GCE machine type for Nodes (default: n1-standard-4)'
)
gce_parser.add_argument(
'--etcds-machine-type', dest='etcds_machine_type',
help='GCE machine type for Etcd members (default: n1-standard-1)'
)
gce_parser.add_argument('--image', dest='image', help='GCE image')
gce_parser.add_argument(
'--project', dest='project_id', help='GCE project ID'
)
gce_parser.add_argument(
'--email', dest='service_account_email', help='GCE project ID'
)
gce_parser.add_argument(
'--cluster-name', dest='cluster_name', help='Name of the cluster'
)
gce_parser.add_argument(
'--tags', dest='tags', help='List of VM tags', nargs="+", metavar="TAG"
)
gce_parser.add_argument('--add', dest='add_node', action='store_true',
help="Add node to an existing cluster")
gce_parser.add_argument(
'--etcd', dest='etcds_count', type=int,
help='Number of etcd, these instances will just act as etcd members'
)
gce_parser.add_argument(
'--masters', dest='masters_count', type=int,
help='Number of masters, these instances will not run workloads, master components only'
)
gce_parser.add_argument(
'--nodes', dest='nodes_count', type=int,
help='Number of nodes', required=True
)
gce_parser.set_defaults(func=gce)
# openstack
openstack_parser = subparsers.add_parser(
'openstack', parents=[parent_parser, firststep_parser],
help='Create OpenStack instances and generate inventory'
)
openstack_parser.add_argument(
'--os_auth_url', dest='os_auth_url', help='OpenStack authentication URL'
)
openstack_parser.add_argument(
'--os_username', dest='os_username', help='OpenStack Username'
)
openstack_parser.add_argument(
'--os_project_name', dest='os_project_name',
help='OpenStack Project Name'
)
openstack_parser.add_argument(
'--os_region_name', dest='os_region_name', help='OpenStack Region Name',
required=False
)
openstack_parser.add_argument(
'--os_password', dest='os_password', help='OpenStack Password'
)
openstack_parser.add_argument(
'--etcd', dest='etcds_count', type=int,
help='Number of etcd, these instances will just act as etcd members'
)
openstack_parser.add_argument(
'--masters', dest='masters_count', type=int,
help='Number of masters, these instances will not run workloads, master components only'
)
openstack_parser.add_argument(
'--nodes', dest='nodes_count', type=int,
help='Number of nodes', required=True
)
openstack_parser.add_argument(
'--sshkey', dest='sshkey', help='Name of saved SSH Keypair'
)
openstack_parser.add_argument(
'-N', '--kube-network', dest='kube_network', default='10.233.0.0/16',
help="""Network to be used inside the cluster (/16),
(must not overlap with any of your infrastructure networks and should be the same as in deploy).
default: 10.233.0.0/16"""
)
openstack_parser.add_argument(
'--add', dest='add_node', action='store_true', default=False,
help='Add node to an existing cluster')
openstack_parser.add_argument(
'--network', dest='network', help='Neutron network name'
)
openstack_parser.add_argument(
'--masters-flavor', dest='masters_flavor',
help='OpenStack instance flavor for Masters'
)
openstack_parser.add_argument(
'--nodes-flavor', dest='nodes_flavor',
help='OpenStack instance flavor for Nodes'
)
openstack_parser.add_argument(
'--etcds-flavor', dest='etcds_flavor',
help='OpenStack instance flavor for Etcd members'
)
openstack_parser.add_argument('--image', dest='image', help='Instance boot image')
openstack_parser.add_argument(
'--floating_ip', dest='floating_ip', action='store_true',
required=False, help='Associate public IP to instances'
)
openstack_parser.add_argument(
'--cluster-name', dest='cluster_name', help='Name of the cluster'
)
openstack_parser.set_defaults(func=openstack)
# deploy
deploy_parser = subparsers.add_parser(
'deploy', parents=[parent_parser],
help='Create GCE machines and generate inventory'
)
deploy_parser.add_argument(
'--verbose', default=False, action='store_true',
help="Run Ansible playbook in verbose mode '-vvvv'"
)
deploy_parser.add_argument(
'-k', '--sshkey', dest='ssh_key',
help='ssh key for authentication on remote servers'
)
deploy_parser.add_argument(
'-K', '--ask-become-pass', default=False, action='store_true', dest='ask_become_pass',
help='ask for privilege escalation password'
)
deploy_parser.add_argument(
'-u', '--user', dest='ansible_user', default=getpass.getuser(),
help='Ansible SSH user (remote user)'
)
deploy_parser.add_argument(
'--passwd', dest='k8s_passwd',
help="Set the 'kube' passwd to authenticate to the API (default changeme')"
)
deploy_parser.add_argument(
'-P', '--prompt-passwd', default=False, action='store_true', dest='prompt_pwd',
help="Set the 'kube' passwd to authenticate to the API (Interactive mode)"
)
deploy_parser.add_argument(
'-V', '--kube-version', dest='kube_version',
help='Choose the kubernetes version to be installed'
)
deploy_parser.add_argument(
'-N', '--kube-network', dest='kube_network',
help="""Network to be used inside the cluster (/16),
(must not overlap with any of your infrastructure networks).
default: 10.233.0.0/16"""
)
deploy_parser.add_argument(
'-n', '--network-plugin',
choices=['flannel', 'weave', 'calico', 'canal', 'contiv', 'cloud'],
help='Inventory defaults to calico'
)
deploy_parser.add_argument(
'--apps', dest='apps_enabled', metavar='N', nargs='+', default=[],
help='''List of optional applications to be installed,
Possible values: helm, netchecker, efk'''
)
deploy_parser.add_argument(
'--aws', default=False, action='store_true',
help='Kubernetes deployment on AWS'
)
deploy_parser.add_argument(
'--gce', default=False, action='store_true',
help='Kubernetes deployment on GCE'
)
deploy_parser.add_argument(
'--redhat', default=False, action='store_true',
help='bootstrap python on RHEL 7 and newer'
)
deploy_parser.add_argument(
'--coreos', default=False, action='store_true',
help='bootstrap python on CoreOS'
)
deploy_parser.add_argument(
'--ubuntu', default=False, action='store_true',
help='bootstrap python on Ubuntu 16.04 and newer'
)
deploy_parser.add_argument(
'--ansible-opts', dest='ansible_opts',
help='Ansible options'
)
deploy_parser.set_defaults(func=deploy)
# Parse arguments
args = parser.parse_args()
if args.configfile is None:
default_config_dir = os.path.expanduser("~")
if not os.path.isdir(default_config_dir):
os.makedirs(default_config_dir)
args.configfile = os.path.join(default_config_dir, ".kubespray.yml")
# Read configfile and update options dict
C = Config(args.configfile)
configfile_content = C.parse_configfile
config = C.default_values(args, configfile_content)
# Run functions with all the options
os.environ['ANSIBLE_FORCE_COLOR'] = 'true'
args.func(config)
================================================
FILE: setup.cfg
================================================
[metadata]
description-file = README.md
================================================
FILE: setup.py
================================================
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
from setuptools import setup, find_packages
requirements = [
'cffi>=1.6.0',
'setuptools>=11.3',
'cryptography>=1.3.2',
'requests>=2.4.3',
'netaddr>=0.7.18',
'markupsafe>=0.23',
'pyasn1>=0.1.8',
'boto>=2.40.0',
'apache-libcloud>=0.20.1'
]
test_requirements = [
# TODO: put package test requirements here
]
my_homedir = os.path.expanduser("~")
setup(
name='kubespray',
version='0.5.2',
description="Kubespray kubernetes cluster deployment",
author="Smaine Kahlouch",
author_email='smainklh@gmail.com',
url='https://github.com/kubespray/kubespray-cli',
data_files=[
(my_homedir, ['src/kubespray/files/.kubespray.yml'])
],
packages=find_packages('src'),
scripts=[
'bin/kubespray'
],
package_dir={'': 'src'},
package_data={'kubespray': ['files/*.yml'], },
install_requires=requirements,
license="GPLv3",
zip_safe=False,
keywords='kubespray',
classifiers=[
'Development Status :: 2 - Pre-Alpha',
'Intended Audience :: Developers',
'Natural Language :: English',
"Programming Language :: Python :: 2",
'Programming Language :: Python :: 2.7',
],
test_suite='tests',
tests_require=test_requirements
)
================================================
FILE: src/kubespray/__init__.py
================================================
# (c) 2016, Smaine Kahlouch <smainklh@gmail.com>
__author__ = 'smana'
__version__ = '0.5.2'
================================================
FILE: src/kubespray/cloud.py
================================================
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# This file is part of Kubespray.
#
# Kubespray is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Foobar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Foobar. If not, see <http://www.gnu.org/licenses/>.
"""
kubespray.cloud
~~~~~~~~~~~~
Run Instances on cloud providers and generate inventory
"""
import sys
import os
import yaml
import json
from kubespray.inventory import CfgInventory
from kubespray.common import get_logger, query_yes_no, run_command, which, id_generator, get_cluster_name
from ansible.utils.display import Display
display = Display()
playbook_exec = which('ansible-playbook')
try:
import configparser
except ImportError:
import ConfigParser as configparser
class Cloud(object):
'''
Run Instances on cloud providers and generates inventory
'''
def __init__(self, options, cloud):
self.options = options
self.cloud = cloud
self.inventorycfg = options['inventory_path']
self.playbook = os.path.join(options['kubespray_path'], 'local.yml')
self.cparser = configparser.ConfigParser(allow_no_value=True)
self.Cfg = CfgInventory(options, cloud)
self.localcfg = os.path.join(
options['kubespray_path'],
'inventory/local.cfg'
)
self.instances = {'masters':
{'file': os.path.join(
options['kubespray_path'], 'masters_instances.json'),
'json': None
},
'nodes':
{'file': os.path.join(
options['kubespray_path'], 'nodes_instances.json'),
'json': None
},
'etcds':
{'file': os.path.join(
options['kubespray_path'], 'etcds_instances.json'),
'json': None
},
}
self.logger = get_logger(
options.get('logfile'),
options.get('loglevel')
)
self.pbook_content = [{
'gather_facts': False,
'hosts': 'localhost',
'become': False,
'tasks': []
}]
self.logger.debug('''
The following options were used to generate the inventory: %s
''' % self.options)
def write_local_inventory(self):
'''Generates inventory for local tasks'''
self.cparser.add_section('local')
self.cparser.set(
'local',
'localhost ansible_python_interpreter=python2 ansible_connection=local'
)
try:
with open(self.localcfg, 'wb') as f:
self.cparser.write(f)
except IOError as e:
display.error(
'Cannot write inventory %s: %s'
% (self.localcfg, e)
)
sys.exit(1)
def write_playbook(self):
'''Write the playbook for instances creation'''
try:
with open(self.playbook, "w") as pb:
pb.write(yaml.dump(self.pbook_content, default_flow_style=True))
except IOError as e:
display.error(
'Cant write the playbook %s: %s'
% (self.playbook, e)
)
sys.exit(1)
def write_inventory(self):
'''Generate the inventory according the instances created'''
for role in ['masters', 'nodes', 'etcds']:
if '%s_count' % role in self.options.keys():
with open(self.instances['%s' % role]['file']) as f:
self.instances['%s' % role]['json'] = json.load(f)
else:
self.instances['%s' % role]['json'] = []
self.Cfg.write_inventory(self.instances['masters']['json'], self.instances['nodes']['json'], self.instances['etcds']['json'])
def create_instances(self):
'''Run ansible-playbook for instances creation'''
cmd = [
playbook_exec, '-i', self.localcfg, '-e',
'ansible_connection=local', self.playbook
]
if not self.options['assume_yes']:
count = 0
for role in ['masters', 'nodes', 'etcds']:
if '%s_count' % role in self.options.keys():
count = count + self.options['%s_count' % role]
if self.options['add_node']:
display.warning(
'%s node(s) will be added to the current inventory %s' %
(count, self.inventorycfg)
)
if not query_yes_no('Create %s instances on %s ?' % (count, self.cloud)):
display.display('Aborted', color='red')
sys.exit(1)
rcode, emsg = run_command('Create %s instances' % self.cloud, cmd)
if rcode != 0:
self.logger.critical('Cannot create instances: %s' % emsg)
sys.exit(1)
class AWS(Cloud):
def __init__(self, options):
Cloud.__init__(self, options, "aws")
self.options = options
def gen_ec2_playbook(self):
data = self.options
data.pop('func')
# Options list of ansible EC2 module
self.options['image'] = self.options['ami']
if 'security_group_id' in self.options.keys():
self.options['group_id'] = self.options['security_group_id']
if 'security_group_name' in self.options.keys():
self.options['group'] = self.options['security_group_name']
if 'tags' in self.options:
self.options['instance_tags'] = {}
for kv in self.options['tags']:
k, v = kv.split("=")
self.options['instance_tags'][k] = v
ec2_options = [
'aws_access_key', 'aws_secret_key', 'count', 'group_id',
'group', 'instance_type', 'instance_profile_name', 'key_name', 'vpc_subnet_id',
'image', 'instance_tags', 'assign_public_ip', 'region'
]
# Define EC2 task
for role in ['masters', 'nodes', 'etcds']:
if '%s_count' % role in self.options.keys():
ec2_task = {'ec2': {},
'name': 'Provision EC2 %s instances' % role,
'register': 'ec2_%s' % role}
for opt in ec2_options:
if opt in self.options.keys():
d = {opt: self.options[opt]}
ec2_task['ec2'].update(d)
ec2_task['ec2'].update({'count': self.options['%s_count' % role]})
ec2_task['ec2'].update({'instance_type': self.options['%s_instance_type' % role]})
ec2_task['ec2'].update({'instance_profile_name': self.options['%s_instance_profile_name' % role]})
ec2_task['ec2'].update({'wait': True})
self.pbook_content[0]['tasks'].append(ec2_task)
# Write ec2 instances json
self.pbook_content[0]['tasks'].append(
{'name': 'Generate a file with ec2 instances list',
'copy':
{'dest': '%s' % self.instances['%s' % role]['file'],
'content': '{{ec2_%s.instances}}' % role}}
)
# Wait for ssh task
if self.options['use_private_ip']:
instance_ip = '{{ item.private_ip }}'
else:
instance_ip = '{{ item.public_ip }}'
self.pbook_content[0]['tasks'].append(
{'local_action': {'host': '%s' % instance_ip,
'module': 'wait_for',
'port': 22,
'state': 'started',
'timeout': 600},
'name': 'Wait until SSH is available',
'with_items': '{{ec2_%s.instances}}' % role}
)
self.write_local_inventory()
self.write_playbook()
class GCE(Cloud):
def __init__(self, options):
Cloud.__init__(self, options, "gce")
self.options = options
def gen_gce_playbook(self):
data = self.options
data.pop('func')
if 'tags' in self.options:
self.options['tags'] = ','.join(self.options['tags'])
# Options list of ansible GCE module
gce_options = [
'machine_type', 'image', 'zone', 'service_account_email',
'pem_file', 'credentials_file', 'project_id', 'tags', 'network', 'subnetwork'
]
# Define instance names
cluster_name = 'k8s-' + get_cluster_name()
for role in ['masters', 'nodes', 'etcds']:
gce_instance_names = list()
if '%s_count' % role in self.options.keys():
for x in range(self.options['%s_count' % role]):
if self.options['add_node']:
current_inventory = self.Cfg.read_inventory()
cluster_name = '-'.join(
current_inventory['all']['hosts'][0]['hostname'].split('-')[:-2]
)
gce_instance_names.append(
cluster_name + '-%s' % id_generator()
)
elif 'cluster_name' in self.options.keys():
gce_instance_names.append(
self.options['cluster_name'] + '-%s' % id_generator()
)
else:
gce_instance_names.append(
cluster_name + '-%s' % id_generator()
)
gce_instance_names = ','.join(gce_instance_names)
# Define GCE task
gce_task = {'gce': {},
'name': 'Provision GCE %s instances' % role,
'register': 'gce_%s' % role}
for opt in gce_options:
if opt in self.options.keys():
d = {opt: self.options[opt]}
gce_task['gce'].update(d)
gce_task['gce'].update({'machine_type': self.options['%s_machine_type' % role]})
gce_task['gce'].update({'instance_names': '%s' % gce_instance_names})
self.pbook_content[0]['tasks'].append(gce_task)
# Write gce instances json
self.pbook_content[0]['tasks'].append(
{'name': 'Generate a file with %s list' % role,
'copy':
{'dest': '%s' % self.instances['%s' % role]['file'],
'content': '{{gce_%s.instance_data}}' % role}}
)
# Wait for ssh task
if self.options['use_private_ip']:
instance_ip = '{{ item.private_ip }}'
else:
instance_ip = '{{ item.public_ip }}'
self.pbook_content[0]['tasks'].append(
{'local_action': {'host': '%s' % instance_ip,
'module': 'wait_for',
'port': 22,
'state': 'started',
'timeout': 600},
'name': 'Wait until SSH is available',
'with_items': '{{gce_%s.instance_data}}' % role}
)
self.write_local_inventory()
self.write_playbook()
class OpenStack(Cloud):
def __init__(self, options):
Cloud.__init__(self, options, 'openstack')
self.options = options
def gen_openstack_playbook(self):
data = self.options
data.pop('func')
openstack_credential_args = ('auth_url', 'username', 'password', 'project_name')
openstack_auth = {}
for cred_arg in openstack_credential_args:
openstack_auth.update({cred_arg: self.options['os_%s' % cred_arg]})
if 'os_domain_name' in self.options:
openstack_auth.update({'domain_name': self.options['os_domain_name']})
if self.options['floating_ip']:
ip_type = 'public'
else:
ip_type = 'private'
# Define instance names
cluster_name = 'k8s-' + get_cluster_name()
if 'cluster_name' in self.options.keys():
cluster_name = 'k8s-' + self.options['cluster_name']
os_security_group_name = cluster_name + '-%s' % id_generator()
self.pbook_content[0]['tasks'].append(
{'name': 'Create security group',
'os_security_group': {
'auth': openstack_auth,
'name': os_security_group_name,
'description': 'Contains security rules for the Kubernetes cluster',
'region_name': self.options['os_region_name'],
'state': 'present'}}
)
self.pbook_content[0]['tasks'].append(
{'name': 'Add security rules',
'os_security_group_rule': {
'auth': openstack_auth,
'security_group': os_security_group_name,
'protocol': '{{item}}',
'region_name': self.options['os_region_name'],
'state': 'present'},
'with_items': ['tcp', 'udp', 'icmp']}
)
for role in ('masters', 'nodes', 'etcds'):
os_instance_names = list()
if '%s_count' % role in self.options.keys():
for x in range(self.options['%s_count' % role]):
if self.options['add_node']:
current_inventory = self.Cfg.read_inventory()
cluster_name = '-'.join(
current_inventory['all']['hosts'][0]['hostname'].split('-')[:-1]
)
os_instance_names.append(
cluster_name + '-%s' % id_generator()
)
else:
os_instance_names.append(
cluster_name + '-%s' % id_generator()
)
self.pbook_content[0]['tasks'].append(
{'name': 'Create %s network ports' % role,
'os_port': {
'auth': openstack_auth,
'name': '{{item}}',
'region_name': self.options['os_region_name'],
'network': self.options['network'],
'allowed_address_pairs': [{'ip_address': self.options['kube_network']}],
'security_groups': [os_security_group_name],
'state': 'present'},
'with_items': os_instance_names}
)
self.pbook_content[0]['tasks'].append(
{'name': 'Provision OS %s instances' % role,
'os_server': {
'auth': openstack_auth,
'name': '{{item}}',
'state': 'present',
'flavor': self.options['%s_flavor' % role],
'key_name': self.options['sshkey'],
'region_name': self.options['os_region_name'],
'auto_ip': self.options['floating_ip'],
'security_groups': [os_security_group_name],
'nics': 'port-name={{ item }}',
'image': self.options['image']},
'register': 'os_%s' % role,
'with_items': os_instance_names}
)
# Write os instances json
self.pbook_content[0]['tasks'].append(
{'name': 'Generate a file with OS %s instances list' % role,
'copy':
{'dest': '%s' % self.instances[role]['file'],
'content': '{{os_%s.results}}' % role}}
)
# Wait for ssh task
self.pbook_content[0]['tasks'].append(
{'name': 'Wait until SSH is available',
'wait_for': {
'host': '{{item.openstack.%s_v4}}' % ip_type,
'port': 22,
'search_regex': 'SSH',
'state': 'started',
'delay': 10},
'with_items': '{{os_%s.results}}' % role}
)
self.write_local_inventory()
self.write_playbook()
================================================
FILE: src/kubespray/common.py
================================================
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# This file is part of Kubespray.
#
# Foobar is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Foobar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Foobar. If not, see <http://www.gnu.org/licenses/>.
import logging
import shutil
import requests
import random
import os
import re
import netaddr
import sys
import string
import getpass
from ansible.utils.display import Display
from subprocess import PIPE, STDOUT, Popen, CalledProcessError
display = Display()
def which(program):
def is_exe(fpath):
return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
fpath, fname = os.path.split(program)
if fpath:
if is_exe(program):
return program
else:
for path in os.environ["PATH"].split(os.pathsep):
path = path.strip('"')
exe_file = os.path.join(path, program)
if is_exe(exe_file):
return exe_file
return None
def read_password():
pw = getpass.getpass(prompt="API 'kube' password: ")
if len(pw) < 6:
display.warning('Password is too short')
pw2 = getpass.getpass(prompt="Confirm password: ")
if pw != pw2:
display.error("Passwords don't match")
sys.exit(1)
return(pw)
def query_yes_no(question, default="yes"):
"""Question user input 'Yes' or 'No'"""
valid = {"yes": True, "y": True, "no": False, "n": False}
if default is None:
prompt = " [y/n] "
elif default == "yes":
prompt = " [Y/n] "
elif default == "no":
prompt = " [y/N] "
else:
raise ValueError("Invalid default answer: '%s'" % default)
while True:
sys.stdout.write(question + prompt)
choice = raw_input().lower()
if default is not None and choice == '':
return valid[default]
elif choice in valid:
return valid[choice]
else:
sys.stdout.write(
"Please answer with 'yes' or 'no' (or 'y' or 'n').\n"
)
def get_logger(logfile, loglevel):
logger = logging.getLogger()
handler = logging.FileHandler(logfile)
formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
handler.setFormatter(formatter)
logger.addHandler(handler)
logger.setLevel(getattr(logging, loglevel.upper()))
return logger
def get_cluster_name():
try:
word_site = "http://svnweb.freebsd.org/csrg/share/dict/words?view=co&content-type=text/plain"
response = requests.get(word_site)
words = response.content.splitlines()
cluster_name = random.choice(words).decode("utf-8")
except:
cluster_name = id_generator()
if not re.match('^(?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?)$', cluster_name):
get_cluster_name()
return(cluster_name.lower())
def clone_kubespray_git_repo(options):
if not options['add_node']:
if (os.path.isdir(options['kubespray_path']) and not options['assume_yes']
and not options['noclone']):
display.warning(
'A directory %s already exists' % options['kubespray_path']
)
if not query_yes_no(
'Are you sure to overwrite it ?'
):
display.display('Aborted', color='red')
sys.exit(1)
if not options['noclone']:
clone_git_repo(
'kubespray', options['kubespray_path'], options['kubespray_git_repo']
)
def clone_git_repo(name, directory, git_repo):
if which('git') is None:
display.error('Cannot find git binary! check your installation')
sys.exit(1)
if os.path.isdir(directory):
shutil.rmtree(directory)
display.banner('CLONING %s GIT REPO' % name.upper())
cmd = ["git", "clone", git_repo, directory]
rcode, emsg = run_command('Clone kubespray repository from github', cmd)
if rcode != 0:
display.error('Cannot clone kubespray repository from github')
sys.exit(1)
display.display('%s repo cloned' % name, color='green')
def run_command(description, cmd):
'''
Execute a system command
'''
try:
proc = Popen(
cmd, stdout=PIPE, stderr=STDOUT,
universal_newlines=True, shell=False
)
with proc.stdout:
for line in iter(proc.stdout.readline, b''):
print(line),
proc.wait()
return(proc.returncode, None)
except CalledProcessError as e:
display.error('%s: %s' % (description, e.output))
emsg = e.message
return(proc.returncode, emsg)
def id_generator(size=6, chars=string.ascii_lowercase + string.digits):
return ''.join(random.choice(chars) for _ in range(size))
def validate_cidr(cidr, version):
"""
Validates that a CIDR is valid. Returns true if valid, false if
not. Version can be "4", "6", None for "IPv4", "IPv6", or "either"
respectively.
"""
try:
ip = netaddr.IPNetwork(cidr, version=version)
return True
except (netaddr.core.AddrFormatError, ValueError, TypeError):
return False
================================================
FILE: src/kubespray/configure.py
================================================
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# This file is part of Kubespray.
#
# Kubespray is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Kubespray is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Foobar. If not, see <http://www.gnu.org/licenses/>.
"""
kubespray.configure
~~~~~~~~~~~~
Configuration management for Kubespray
"""
import sys
import os
import yaml
from ansible.utils.display import Display
from kubespray.common import read_password
class Config(object):
def __init__(self, configfile):
self.display = Display()
self.configfile = configfile
self.logfile = None
self.loglevel = None
@property
def parse_configfile(self):
"""
Retrieve configuration parameters from the config file
"""
try:
with open(self.configfile, "r") as f:
config = yaml.load(f)
except:
self.display.error(
"Can't read configuration file %s" % self.configfile
)
sys.exit(1)
return config
def default_values(self, args, config):
# Set kubespray_path
if 'kubespray_path' not in config.keys() and args.kubespray_path is None:
config['kubespray_path'] = os.path.join(os.path.expanduser("~"), '.kubespray')
arguments = dict(args._get_kwargs())
for key, value in arguments.items():
if value is not None:
config[key] = value
# Set inventory_path
if 'inventory_path' not in config.keys() and args.inventory_path is None:
config['inventory_path'] = os.path.join(
config['kubespray_path'], 'inventory/inventory.cfg'
)
# Set logfile
if 'logfile' not in config.keys():
config['logfile'] = os.path.join(config['kubespray_path'], 'kubespray.log')
# Set default bool
for v in ['use_private_ip', 'assign_public_ip']:
if v not in config.keys():
config[v] = False
# Set default instances type
if args.func.__name__ == "aws":
if 'masters_instance_type' not in config.keys() and args.masters_instance_type is None:
config['masters_instance_type'] = 't2.medium'
if 'nodes_instance_type' not in config.keys() and args.nodes_instance_type is None:
config['nodes_instance_type'] = 't2.large'
if 'etcds_instance_type' not in config.keys() and args.etcds_instance_type is None:
config['etcds_instance_type'] = 't2.small'
# ----GCE
if args.func.__name__ == "gce":
if 'masters_machine_type' not in config.keys() and args.masters_machine_type is None:
config['masters_machine_type'] = 'n1-standard-2'
if 'nodes_machine_type' not in config.keys() and args.nodes_machine_type is None:
config['nodes_machine_type'] = 'n1-standard-4'
if 'etcds_machine_type' not in config.keys() and args.etcds_machine_type is None:
config['etcds_machine_type'] = 'n1-standard-1'
# Conflicting options
if args.func.__name__ == "aws":
if args.security_group_name and 'security_group_id' in config.keys():
config.pop('security_group_id')
elif args.security_group_id and 'security_group_name' in config.keys():
config.pop('security_group_name')
# Set kubernetes 'kube' password
if 'prompt_pwd' in config.keys() and config['prompt_pwd'] is True:
pwd = read_password()
config['k8s_passwd'] = pwd
return(config)
================================================
FILE: src/kubespray/deploy.py
================================================
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
#
# This file is part of Kubespray.
#
# Foobar is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Foobar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Foobar. If not, see <http://www.gnu.org/licenses/>.
"""
kubespray.deploy
~~~~~~~~~~~~
Deploy a kubernetes cluster. Run the ansible-playbbook
"""
import re
import sys
import os
import yaml
import signal
import netaddr
from subprocess import PIPE, STDOUT, Popen, check_output, CalledProcessError
from kubespray.common import get_logger, query_yes_no, run_command, which, validate_cidr
from ansible.utils.display import Display
display = Display()
playbook_exec = which('ansible-playbook')
ansible_exec = which('ansible')
class RunPlaybook(object):
'''
Run the Ansible playbook to deploy the kubernetes cluster
'''
def __init__(self, options):
self.existing_ssh_agent = False
self.options = options
self.inventorycfg = options['inventory_path']
self.logger = get_logger(
options.get('logfile'),
options.get('loglevel')
)
self.logger.debug(
'Running ansible-playbook command with the following options: %s'
% self.options
)
def kill_ssh_agent(self):
if self.existing_ssh_agent:
return
if 'SSH_AGENT_PID' in os.environ:
agent_pid = os.environ.get('SSH_AGENT_PID')
if agent_pid.isdigit():
os.kill(int(agent_pid), signal.SIGTERM)
def ssh_prepare(self):
'''
Run ssh-agent and store identities
'''
if 'SSH_AUTH_SOCK' in os.environ:
self.existing_ssh_agent = True
self.logger.info('Using existing ssh agent')
return
try:
sshagent = check_output('ssh-agent')
except CalledProcessError as e:
display.error('Cannot run the ssh-agent : %s' % e.output)
# Set environment variables
ssh_envars = re.findall('\w*=[\w*-\/.*]*', sshagent)
for v in ssh_envars:
os.environ[v.split('=')[0]] = v.split('=')[1]
# Store ssh identity
try:
if 'ssh_key' in self.options.keys():
cmd = ['ssh-add', os.path.realpath(self.options['ssh_key'])]
else:
cmd = 'ssh-add'
proc = Popen(
cmd, stdout=PIPE, stderr=STDOUT, stdin=PIPE
)
proc.stdin.write('password\n')
proc.stdin.flush()
response_stdout, response_stderr = proc.communicate()
display.display(response_stdout)
except CalledProcessError as e:
display.error('Failed to store ssh identity : %s' % e.output)
sys.exit(1)
except IOError:
display.error('Could not find SSH key. Have you run ssh-keygen?')
try:
check_output(['ssh-add', '-l'])
except CalledProcessError as e:
display.error('Failed to list identities : %s' % e.output)
sys.exit(1)
if response_stderr:
display.error(response_stderr)
self.logger.critical(
'Deployment stopped because of ssh credentials'
% self.filename
)
self.kill_ssh_agent()
sys.exit(1)
def check_ping(self):
'''
Check if hosts are reachable
'''
display.banner('CHECKING SSH CONNECTIONS')
cmd = [
ansible_exec, '--ssh-extra-args', '-o StrictHostKeyChecking=no',
'-u', '%s' % self.options['ansible_user'],
'-b', '--become-user=root', '-m', 'ping', 'all',
'-i', self.inventorycfg
]
if 'sshkey' in self.options.keys():
cmd = cmd + ['--private-key', self.options['sshkey']]
if self.options['ask_become_pass']:
cmd = cmd + ['--ask-become-pass']
if self.options['coreos']:
cmd = cmd + ['-e', 'ansible_python_interpreter=/opt/bin/python']
display.display(' '.join(cmd))
rcode, emsg = run_command('SSH ping hosts', cmd)
if rcode != 0:
self.logger.critical('Cannot connect to hosts: %s' % emsg)
self.kill_ssh_agent()
sys.exit(1)
display.display('All hosts are reachable', color='green')
def get_subnets(self):
'''Check the subnet value and split into 2 distincts subnets'''
svc_pfx = 17
pods_pfx = 17
net = netaddr.IPNetwork(self.options['kube_network'])
pfx_error_msg = (
"You have to choose a network with a prefix length = 16, "
"Please use Ansible options if you need to configure a different netmask."
)
if net.prefixlen is not 16:
display.error(pfx_error_msg)
self.kill_ssh_agent()
sys.exit(1)
subnets = list(net.subnet(pods_pfx))
pods_network, remaining = subnets[0:2]
net = netaddr.IPNetwork(remaining)
svc_network = list(net.subnet(svc_pfx))[0]
return(svc_network, pods_network)
def read_kube_versions(self):
"""
Read the kubernetes versions from karo's vars file
"""
kube_vers_file = os.path.join(
self.options['kubespray_path'] + '/roles/download/vars/kube_versions.yml'
)
try:
with open(kube_vers_file, "r") as f:
kube_versions_vars = yaml.load(f)
except IOError as e:
display.error('Cannot read kube_versions file %s: %s'
% (kube_vers_file, e)
)
sys.exit(1)
kube_versions = list()
for i in kube_versions_vars['kube_checksum']:
kube_versions.append(i)
return kube_versions
def deploy_kubernetes(self):
'''
Run the ansible playbook command
'''
cmd = [
playbook_exec, '--ssh-extra-args', '-o StrictHostKeyChecking=no',
'-u', '%s' % self.options['ansible_user'],
'-b', '--become-user=root', '-i', self.inventorycfg,
os.path.join(self.options['kubespray_path'], 'cluster.yml')
]
# Configure network plugin if defined
if 'network_plugin' in self.options.keys():
cmd = cmd + ['-e',
'kube_network_plugin=%s' % self.options['network_plugin']
]
# Configure the network subnets pods and k8s services
if 'kube_network' in self.options.keys():
if not validate_cidr(self.options['kube_network'], version=4):
display.error('Invalid Kubernetes network address')
self.kill_ssh_agent()
sys.exit(1)
svc_network, pods_network = self.get_subnets()
cmd = cmd + [
'-e', 'kube_service_addresses=%s' % svc_network.cidr,
'-e', 'kube_pods_subnet=%s' % pods_network
]
# Check optional apps
if 'apps_enabled' in self.options.keys():
for app in self.options['apps_enabled']:
if app not in ['helm', 'netchecker', 'efk']:
display.error(
'The application %s is not available, possible values = %s' %
(app, ','.join(self.options['apps_enabled']))
)
sys.exit(1)
if app == "netchecker":
cmd = cmd + ['-e', 'deploy_netchecker=true']
else:
cmd = cmd + ['-e', '%s_enabled=true' % app]
# Set kubernetes version
if 'kube_version' in self.options.keys():
available_kube_versions = self.read_kube_versions()
if self.options['kube_version'] not in available_kube_versions:
display.error(
'Kubernetes version %s is not supported, available versions = %s' %
(self.options['kube_version'], ','.join(available_kube_versions))
)
sys.exit(1)
cmd = cmd + ['-e', 'kube_version=%s' % self.options['kube_version']]
# Bootstrap
if 'coreos' in self.options.keys() and self.options['coreos']:
cmd = cmd + ['-e', 'bootstrap_os=coreos']
elif 'redhat' in self.options.keys() and self.options['redhat']:
cmd = cmd + [
'-e', 'bootstrap_os=centos', '-e', 'ansible_os_family=RedHat'
]
elif 'ubuntu' in self.options.keys() and self.options['ubuntu']:
cmd = cmd + ['-e', 'bootstrap_os=ubuntu']
# Add root password for the apiserver
if 'k8s_passwd' in self.options.keys():
cmd = cmd + ['-e', 'kube_api_pwd=%s' % self.options['k8s_passwd']]
# Ansible verbose mode
if 'verbose' in self.options.keys() and self.options['verbose']:
cmd = cmd + ['-vvvv']
# Add privilege escalation password
if self.options['ask_become_pass']:
cmd = cmd + ['--ask-become-pass']
# Add any additionnal Ansible option
if 'ansible_opts' in self.options.keys():
cmd = cmd + self.options['ansible_opts'].split(' ')
for cloud in ['aws', 'gce']:
if self.options[cloud]:
cmd = cmd + ['-e', 'cloud_provider=%s' % cloud]
self.check_ping()
if 'kube_network' in self.options.keys():
display.display(
'Kubernetes services network : %s (%s IPs)'
% (svc_network.cidr, str(svc_network.size.real - 2)),
color='bright gray'
)
display.display(
'Pods network : %s (%s IPs)'
% (pods_network.cidr, str(pods_network.size.real - 2)),
color='bright gray'
)
display.display(' '.join(cmd), color='bright blue')
if not self.options['assume_yes']:
if not query_yes_no(
'Run kubernetes cluster deployment with the above command ?'
):
display.display('Aborted', color='red')
sys.exit(1)
display.banner('RUN PLAYBOOK')
self.logger.info(
'Running kubernetes deployment with the command: %s' % ' '.join(cmd)
)
rcode, emsg = run_command('Run deployment', cmd)
if rcode != 0:
self.logger.critical('Deployment failed: %s' % emsg)
self.kill_ssh_agent()
sys.exit(1)
display.display('Kubernetes deployed successfuly', color='green')
self.kill_ssh_agent()
================================================
FILE: src/kubespray/files/.kubespray.yml
================================================
---
# Path where the kubespray ansible playbooks will be installed
# Defaults to current user's home directory if not set
# kubespray_path: "~/.kubespray"
# Default inventory path
kubespray_git_repo: "https://github.com/kubespray/kubespray.git"
# Logging options
loglevel: "info"
# The following options would be overwritten by the command line
# ---------------------------------------------------------
#
# Amazon web services options
# ---
# aws_access_key: "<key>"
# aws_secret_key: "<secret_key>"
# key_name: "<keypair_name>"
# ami: "<aws_ami>"
# masters_instance_type: "<masters_instance_type>"
# nodes_instance_type: "<nodes_instance_type>"
# etcds_instance_type: "<etcds_instance_type>"
# security_group_name: "<security_group_name>"
# security_group_id: "<security_group_id>"
# assign_public_ip: True
# use_private_ip: true
# vpc_subnet_id: "<vpc_id>"
# region: "<aws_region>"
# tags:
# - type: k8s
#
# Google Compute Engine options
# ---
# image: "<cloud_image>"
# masters_machine_type: "<masters_type>
# nodes_machine_type: "<masters_type>
# etcds_machine_type: "<masters_type>
# service_account_email: "<gce_service_account_email>"
# pem_file: "<gce_pem_file>"
# project_id: "<gce_project_id>"
# network: "<gce_network_name>"
# subnetwork: "<gce_subnetwork_name>"
# use_private_ip: true
# zone: "<cloud_region>"
# tags:
# - k8s
#
# OpenStack options
# ---
# os_auth_url: "<os_auth_url>"
# os_username: "<os_username>"
# os_password: "<os_password>"
# os_project_name: "<os_project_name>"
# os_region_name: "<os_region_name>"
# os_domain_name: "<os_domain_name>"
# masters_flavor: "<os_flavor_name_or_id>"
# nodes_flavor: "<os_flavor_name_or_id>"
# etcds_flavor: "<os_flavor_name_or_id>"
# image: "<os_image_name_or_id>"
# network: "<os_network_name_or_id>"
# sshkey: "<os_ssh_key_name>"
#
# All the options to be passed to the 'ansible-playbook' command line
# Note: 'serial=1' ansible option is a workaround for bug https://github.com/ansible/ansible/issues/17935 which causes installation to hang due to SSH multiplexing
# ansible-opts:
# - 'serial=1'
# - '-vvv'
# - '-e'
# - 'myvar1=bar'
# - '-e'
# - 'myvar2=foo'
================================================
FILE: src/kubespray/inventory.py
================================================
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# This file is part of Kubespray.
#
# Kubespray is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Foobar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Foobar. If not, see <http://www.gnu.org/licenses/>.
"""
kubespray.inventory
~~~~~~~~~~~~
Ansible inventory management for Kubespray
"""
import sys
import re
from kubespray.common import get_logger, id_generator, get_cluster_name
from ansible.utils.display import Display
display = Display()
try:
import configparser
except ImportError:
import ConfigParser as configparser
class CfgInventory(object):
'''
Read classic ansible inventory file.
'''
def __init__(self, options, platform):
self.options = options
self.platform = platform
self.inventorycfg = options['inventory_path']
self.logger = get_logger(options.get('logfile'), options.get('loglevel'))
self.cparser = configparser.ConfigParser(allow_no_value=True)
self.inventory = {'all': {'hosts': []},
'kube-master': {'hosts': []},
'etcd': {'hosts': []},
'kube-node': {'hosts': []},
'k8s-cluster:children': {'hosts': [
{'hostname': 'kube-node', 'hostvars': []},
{'hostname': 'kube-master', 'hostvars': []}
]},
}
def read_inventory(self):
read_cparser = configparser.ConfigParser(allow_no_value=True)
try:
read_cparser.read(self.inventorycfg)
except IOError as e:
display.error('Cannot read configuration %s: %s'
% (self.options['inventory_path'], e)
)
sys.exit(1)
expected_sections = ['kube-node', 'kube-master', 'all', 'etcd', 'k8s-cluster:children']
for k in expected_sections:
if k not in read_cparser.sections():
display.error(
'The config file %s doesn\'t have a section named %s'
% (self.options['inventory_path'], k)
)
sys.exit(1)
current_inventory = {'all': {'hosts': []},
'kube-master': {'hosts': []},
'etcd': {'hosts': []},
'kube-node': {'hosts': []},
'k8s-cluster:children': {'hosts': [
{'hostname': 'kube-node', 'hostvars': []},
{'hostname': 'kube-master', 'hostvars': []}
]},
}
for section in current_inventory.keys():
for line, properties_str in read_cparser.items(section):
machine_part = line.split('#', 1)[0] # get rid of comments parts
machine_part = line.split(None, 1)
inventory_hostname = machine_part[0]
host_dict = {'hostname': '', 'hostvars': []}
hostvars = []
if len(machine_part) == 2:
if properties_str:
properties_str = machine_part[1] + '=' + properties_str
else:
properties_str = machine_part[1]
for hostvar in properties_str.split():
name, value = hostvar.split('=')
d = {'name': name, 'value': value}
hostvars.append(d)
host_dict['hostname'] = inventory_hostname
host_dict['hostvars'] = hostvars
current_inventory[section]['hosts'].append(host_dict)
return(current_inventory)
def format_inventory(self, masters, nodes, etcds):
new_inventory = {'all': {'hosts': []},
'kube-master': {'hosts': []},
'etcd': {'hosts': []},
'kube-node': {'hosts': []},
'k8s-cluster:children': {'hosts': [
{'hostname': 'kube-node', 'hostvars': []},
{'hostname': 'kube-master', 'hostvars': []}
]},
}
if self.platform == 'openstack':
if self.options['floating_ip']:
ip_type = 'public_v4'
else:
ip_type = 'private_v4'
# handle masters
new_instances = []
for master in masters:
new_instances.append({'public_ip': master['openstack'][ip_type],
'name': master['item']})
masters = new_instances
# handle nodes
new_instances = []
for node in nodes:
new_instances.append({'public_ip': node['openstack'][ip_type],
'name': node['item']})
nodes = new_instances
# handle etcds
new_instances = []
for etcd in etcds:
new_instances.append({'public_ip': etcd['openstack'][ip_type],
'name': etcd['item']})
etcds = new_instances
if not self.options['add_node']:
if not masters and len(nodes) == 1:
masters = [nodes[0]]
elif not masters:
masters = nodes[0:2]
if not etcds and len(nodes) >= 3:
etcds = nodes[0:3]
elif not etcds and len(nodes) < 3:
etcds = [nodes[0]]
elif etcds and len(etcds) < 3:
etcds = [etcds[0]]
if self.platform in ['aws', 'gce', 'openstack']:
if self.options['add_node']:
current_inventory = self.read_inventory()
cluster_name = '-'.join(
current_inventory['all']['hosts'][0]['hostname'].split('-')[:-1]
)
new_inventory = current_inventory
else:
cluster_name = 'k8s-' + get_cluster_name()
if self.options['use_private_ip']:
instance_ip = 'private_ip'
else:
instance_ip = 'public_ip'
for host in nodes + masters + etcds:
if self.platform == 'aws':
host['name'] = "%s-%s" % (cluster_name, id_generator(5))
new_inventory['all']['hosts'].append(
{'hostname': '%s' % host['name'], 'hostvars': [
{'name': 'ansible_ssh_host', 'value': host[instance_ip]}
]}
)
if not self.options['add_node']:
for host in nodes:
new_inventory['kube-node']['hosts'].append(
{'hostname': '%s' % host['name'],
'hostvars': []}
)
for host in masters:
new_inventory['kube-master']['hosts'].append(
{'hostname': '%s' % host['name'],
'hostvars': []}
)
for host in etcds:
new_inventory['etcd']['hosts'].append(
{'hostname': '%s' % host['name'],
'hostvars': []}
)
elif self.platform == 'metal':
for host in nodes + masters + etcds:
if '[' in host:
r = re.search('(^.*)\[(.*)\]', host)
inventory_hostname = r.group(1)
var_str = r.group(2)
hostvars = list()
for var in var_str.split(','):
hostvars.append({'name': var.split('=')[0], 'value': var.split('=')[1]})
else:
inventory_hostname = host
hostvars = []
new_inventory['all']['hosts'].append(
{'hostname': inventory_hostname, 'hostvars': hostvars}
)
for host in nodes:
new_inventory['kube-node']['hosts'].append(
{'hostname': host.split('[')[0], 'hostvars': []}
)
for host in masters:
new_inventory['kube-master']['hosts'].append(
{'hostname': host.split('[')[0], 'hostvars': []}
)
for host in etcds:
new_inventory['etcd']['hosts'].append(
{'hostname': host.split('[')[0], 'hostvars': []}
)
return(new_inventory)
def write_inventory(self, masters, nodes, etcds):
'''Generates inventory'''
inventory = self.format_inventory(masters, nodes, etcds)
if not self.options['add_node']:
if (('masters_count' in self.options.keys() and len(masters) < 2) or
('masters_count' not in self.options.keys() and len(nodes) < 2)):
display.warning('You should set at least 2 masters')
if (('etcds_count' in self.options.keys() and len(etcds) < 3) or
('etcds_count' not in self.options.keys() and len(nodes) < 3)):
display.warning('You should set at least 3 nodes for etcd clustering')
open(self.inventorycfg, 'w').close()
for key, value in inventory.items():
self.cparser.add_section(key)
for host in value['hosts']:
hostvars = str()
varlist = list()
for var in host['hostvars']:
varlist.append("%s=%s" % (var['name'], var['value']))
hostvars = " ".join(varlist)
self.cparser.set(key, "%s\t\t%s" % (host['hostname'], hostvars))
with open(self.inventorycfg, 'wb') as configfile:
display.banner('WRITTING INVENTORY')
self.cparser.write(configfile)
self.logger.info(
'the inventory %s was successfuly generated'
% self.inventorycfg
)
self.logger.debug(
'The following options were used to generate the inventory: %s'
% self.options
)
display.display(
'Inventory generated : %s'
% self.inventorycfg, color='green'
)
gitextract_tsd1_jj_/
├── .gitignore
├── HISTORY.rst
├── LICENCE
├── README.md
├── bin/
│ └── kubespray
├── setup.cfg
├── setup.py
└── src/
└── kubespray/
├── __init__.py
├── cloud.py
├── common.py
├── configure.py
├── deploy.py
├── files/
│ └── .kubespray.yml
└── inventory.py
SYMBOL INDEX (42 symbols across 5 files)
FILE: src/kubespray/cloud.py
class Cloud (line 42) | class Cloud(object):
method __init__ (line 46) | def __init__(self, options, cloud):
method write_local_inventory (line 87) | def write_local_inventory(self):
method write_playbook (line 104) | def write_playbook(self):
method write_inventory (line 116) | def write_inventory(self):
method create_instances (line 126) | def create_instances(self):
class AWS (line 151) | class AWS(Cloud):
method __init__ (line 153) | def __init__(self, options):
method gen_ec2_playbook (line 157) | def gen_ec2_playbook(self):
class GCE (line 216) | class GCE(Cloud):
method __init__ (line 218) | def __init__(self, options):
method gen_gce_playbook (line 222) | def gen_gce_playbook(self):
class OpenStack (line 292) | class OpenStack(Cloud):
method __init__ (line 293) | def __init__(self, options):
method gen_openstack_playbook (line 297) | def gen_openstack_playbook(self):
FILE: src/kubespray/common.py
function which (line 34) | def which(program):
function read_password (line 50) | def read_password():
function query_yes_no (line 61) | def query_yes_no(question, default="yes"):
function get_logger (line 85) | def get_logger(logfile, loglevel):
function get_cluster_name (line 95) | def get_cluster_name():
function clone_kubespray_git_repo (line 108) | def clone_kubespray_git_repo(options):
function clone_git_repo (line 126) | def clone_git_repo(name, directory, git_repo):
function run_command (line 141) | def run_command(description, cmd):
function id_generator (line 161) | def id_generator(size=6, chars=string.ascii_lowercase + string.digits):
function validate_cidr (line 165) | def validate_cidr(cidr, version):
FILE: src/kubespray/configure.py
class Config (line 32) | class Config(object):
method __init__ (line 34) | def __init__(self, configfile):
method parse_configfile (line 41) | def parse_configfile(self):
method default_values (line 55) | def default_values(self, args, config):
FILE: src/kubespray/deploy.py
class RunPlaybook (line 40) | class RunPlaybook(object):
method __init__ (line 44) | def __init__(self, options):
method kill_ssh_agent (line 57) | def kill_ssh_agent(self):
method ssh_prepare (line 67) | def ssh_prepare(self):
method check_ping (line 117) | def check_ping(self):
method get_subnets (line 142) | def get_subnets(self):
method read_kube_versions (line 161) | def read_kube_versions(self):
method deploy_kubernetes (line 181) | def deploy_kubernetes(self):
FILE: src/kubespray/inventory.py
class CfgInventory (line 38) | class CfgInventory(object):
method __init__ (line 43) | def __init__(self, options, platform):
method read_inventory (line 59) | def read_inventory(self):
method format_inventory (line 106) | def format_inventory(self, masters, nodes, etcds):
method write_inventory (line 219) | def write_inventory(self, masters, nodes, etcds):
Condensed preview — 14 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (119K chars).
[
{
"path": ".gitignore",
"chars": 154,
"preview": "# Created by .ignore support plugin (hsz.mobi)\n### Example user template template\n### Example user template\n\n# IntelliJ "
},
{
"path": "HISTORY.rst",
"chars": 88,
"preview": "=======\nHistory\n=======\n\n0.1.0 (2016-3-20)\n------------------\n\n* First release on PyPI.\n"
},
{
"path": "LICENCE",
"chars": 35147,
"preview": " GNU GENERAL PUBLIC LICENSE\n Version 3, 29 June 2007\n\n Copyright (C) 2007 Free "
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"preview": "# (c) 2016, Smaine Kahlouch <smainklh@gmail.com>\n__author__ = 'smana'\n__version__ = '0.5.2'\n"
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"preview": "---\n# Path where the kubespray ansible playbooks will be installed\n# Defaults to current user's home directory if not se"
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About this extraction
This page contains the full source code of the kubespray/kubespray-cli GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 14 files (112.3 KB), approximately 25.9k tokens, and a symbol index with 42 extracted functions, classes, methods, constants, and types. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.