Repository: kind-ci/examples Branch: master Commit: df54b8dc5d9f Files: 17 Total size: 26.3 KB Directory structure: gitextract_zgiv1qaa/ ├── .circleci/ │ └── config.yml ├── .github/ │ └── workflows/ │ └── kind.yml ├── .gitlab-ci.yml ├── .travis.yml ├── LICENSE ├── README.md ├── azure-pipelines.yml ├── concourse.md ├── drone/ │ ├── .drone.yml │ ├── README.md │ ├── install.sh │ ├── kind-config │ └── setup.sh ├── gcb.md ├── gitlab/ │ └── kind-config.yaml ├── kind-config.yaml └── kind-smoketest.sh ================================================ FILE CONTENTS ================================================ ================================================ FILE: .circleci/config.yml ================================================ version: 2 jobs: build: machine: enabled: true steps: - checkout - run: ./kind-smoketest.sh ================================================ FILE: .github/workflows/kind.yml ================================================ name: Kind on: [push, pull_request] jobs: test-unit: name: Create a Kind cluster runs-on: [ubuntu-latest] steps: - uses: actions/checkout@v1 - uses: actions/setup-go@v1 with: go-version: 1.13 - name: Install latest version of Kind run: | GO111MODULE=on go get sigs.k8s.io/kind - name: Create Kind cluster run: | PATH=$(go env GOPATH)/bin:$PATH kind create cluster --config kind-config.yaml - name: Run some sanity checks # kubectl is already installed on the Github Ubuntu worker run: | kubectl get nodes -o wide kubectl get pods --all-namespaces -o wide kubectl get services --all-namespaces -o wide ================================================ FILE: .gitlab-ci.yml ================================================ image: docker:stable variables: KUBECTL: v1.17.0 KIND: v0.8.1 services: - docker:dind stages: - test test: stage: test script: - apk add -U wget - wget -O /usr/local/bin/kind https://github.com/kubernetes-sigs/kind/releases/download/${KIND}/kind-linux-amd64 - chmod +x /usr/local/bin/kind - wget -O /usr/local/bin/kubectl https://storage.googleapis.com/kubernetes-release/release/${KUBECTL}/bin/linux/amd64/kubectl - chmod +x /usr/local/bin/kubectl - kind create cluster --config=./gitlab/kind-config.yaml - sed -i -E -e 's/localhost|0\.0\.0\.0/docker/g' "$HOME/.kube/config" - kubectl get nodes -o wide - kubectl get pods --all-namespaces -o wide - kubectl get services --all-namespaces -o wide ================================================ FILE: .travis.yml ================================================ sudo: required language: go go: - "1.14" services: - docker install: true script: - echo "Run your tests here" before_install: # Download and install Kind and kubectl - GO111MODULE=on go get sigs.k8s.io/kind - kind create cluster --config kind-config.yaml - export KUBECONFIG="$(kind get kubeconfig-path --name="kind")" - curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl - chmod +x ./kubectl - ./kubectl get nodes -o wide - ./kubectl get pods --all-namespaces -o wide - ./kubectl get services --all-namespaces -o wide ================================================ FILE: LICENSE ================================================ Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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See the License for the specific language governing permissions and limitations under the License. ================================================ FILE: README.md ================================================ # Examples This repository provides samples and testing for running [sigs.k8s.io/kind](https://sigs.k8s.io/kind) on various CI platforms. ## Supported / Tested CI Platforms For any platform not yet listed or listed as "Unsure :question:" we are looking for your help! Please file Pull Requests and / or Issues for missing CI platforms :smile: | Platform | Known to Work? | Status | |---|---|--| | [CircleCI](https://circleci.com/) | [Yes](.circleci) :heavy_check_mark: | [![CircleCI](https://circleci.com/gh/kind-ci/examples.svg?style=svg)](https://circleci.com/gh/kind-ci/examples) | | [Travis CI](https://travis-ci.com/) | [Yes](.travis.yml) :heavy_check_mark: | [![Travis CI](https://travis-ci.com/kind-ci/examples.svg?branch=master)](https://travis-ci.com/kind-ci/examples/) | | [Prow](https://github.com/kubernetes/test-infra/tree/master/prow) | [Yes](https://github.com/kubernetes/test-infra/tree/master/config/jobs/kubernetes-sigs/kind) :heavy_check_mark: | [![Prow](https://prow.k8s.io/badge.svg?jobs=ci-kubernetes-kind-e2e-parallel)](https://prow.k8s.io/?job=ci-kubernetes-kind-e2e-parallel) | | [Concourse](https://concourse-ci.org/) | [Yes](concourse.md) :heavy_check_mark: | [![Concourse k8s](https://hush-house.pivotal.io/api/v1/teams/k8s-c10s/pipelines/kind/badge)](https://hush-house.pivotal.io/teams/k8s-c10s/pipelines/kind?group=all) | | [Github](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/about-continuous-integration) | [Yes](.github/workflows/kind.yml) :heavy_check_mark: | ![Github](https://github.com/kind-ci/examples/workflows/Kind/badge.svg) | | [Gitlab](https://about.gitlab.com/product/continuous-integration/) | [Yes](.gitlab-ci.yml) :heavy_check_mark: | ![Gitlab](https://gitlab.com/kind-ci/examples/badges/master/pipeline.svg) | | [Azure Pipelines](https://azure.microsoft.com/en-us/services/devops/pipelines/) | [Yes](azure-pipelines.yml) :heavy_check_mark: | ![Azure Pipelines](https://dev.azure.com/kind-ci/examples/_apis/build/status/examples?api-version=5.1-preview.1) | | [Drone](https://drone.io/) | [Yes](./drone) :heavy_check_mark: | None | | [Google Cloud Build](https://cloud.google.com/cloud-build/) | [Yes](./gcb.md) :heavy_check_mark: | None | | [BuildKite](https://buildkite.com/) | Unsure :question: | None | | [CodeShip](https://codeship.com/) | Unsure :question: | None | ================================================ FILE: azure-pipelines.yml ================================================ trigger: - master pool: vmImage: 'Ubuntu 18.04' steps: - task: GoTool@0 inputs: version: '1.13.7' goBin: '$(Agent.HomeDirectory)/bin' - script: GO111MODULE="on" go get sigs.k8s.io/kind@v0.8.1 displayName: 'Install kind' - script: $(GOBIN)/kind create cluster displayName: 'Deploying kind cluster' - script: kubectl cluster-info --context kind-kind displayName: 'Show cluster info' ================================================ FILE: concourse.md ================================================ # `kind` on `concourse` with [`kind-on-c`][kind-on-c] ## Quick Intro To run [kind] in a [concourse] task you can use [kind-on-c]. The project aims to provide an easy, nice, and "concourse-native" experience for concourse pipeline authors by supplying a reusable concourse task definition and task container. [kind-on-c] supports primarily two modes: - pull and run the node images provided by `kind` - pull the source of kubernetes in a specific revision and create a node image on the fly More information on supported kubernetes versions and features can be found at [the project's github][kind-on-c] or its [automated test pipeline][ci] (see also: [pipeline source][ci-src]). ## Example pipeline stub ```yaml # ... jobs: - name: kind plan: - in_parallel: - get: kind-on-c - get: kind-release params: globs: - kind-linux-amd64 - task: run-kind privileged: true file: kind-on-c/kind.yaml params: KIND_TESTS: | # your actual tests go here! kubectl get nodes -o wide # ... resources: - name: kind-release type: github-release source: owner: kubernetes-sigs repository: kind access_token: pre_release: true - name: kind-on-c type: git source: uri: https://github.com/pivotal-k8s/kind-on-c # ... ``` [kind]: //kind.sigs.k8s.io/ [concourse]: //concourse-ci.org/ [kind-on-c]: //github.com/pivotal-k8s/kind-on-c [ci]: //hush-house.pivotal.io/teams/k8s-c10s/pipelines/kind [ci-src]: //github.com/pivotal-k8s/kind-on-c/tree/master/ci/ ================================================ FILE: drone/.drone.yml ================================================ --- kind: pipeline name: test platform: os: linux arch: amd64 steps: - name: setup image: docker:stable pull: always depends_on: [ clone ] environment: CLUSTER_HOST: docker CLUSTER_NAME: kind-cluster KUBECONFIG: /mnt/config/admin.conf commands: - ./drone/install.sh - ./drone/setup.sh - kubectl get nodes volumes: - name: dockersock path: /var/run - name: kubeconfig path: /mnt/config when: event: - push - name: test image: alpine:3.14 pull: always depends_on: [ setup ] environment: KUBECONFIG: /mnt/config/admin.conf commands: - ./drone/install.sh - kubectl get nodes volumes: - name: kubeconfig path: /mnt/config when: event: - push services: - name: docker image: docker:dind privileged: true volumes: - name: dockersock path: /var/run volumes: - name: dockersock temp: {} - name: kubeconfig temp: {} ================================================ FILE: drone/README.md ================================================ # DRONE PIPELINE EXAMPLE An example drone pipeline using kind to create a kind cluster. For the sake of simplicity all dependencies will be installed at runtime, but a more complete example can be found in the [fury-kubernetes-monitoring project](https://github.com/sighupio/fury-kubernetes-monitoring/blob/master/.drone.yml) using the image built from [fury-images](https://github.com/sighupio/fury-images/tree/master/kind). We have chosen to use a docker service, sharing the docker socket with the pipeline step creating the cluster. If access to the cluster is needed from successive steps, only the kubeconfig file has to be mounted and used as in the example. ## N.B. - the project's repository has to be flagged as "trusted" from drone reposistory's settings due to the docker service having `privileged: true` set - the teardown of the cluster will be managed from the docker service, no need to `kind delete cluster` explicitly - the docker service name (here "docker") has to be added to "/apiServer/certSANs" as can be seen in the "kubeadmConfigPatchesJson6902" in [kind-config](./kind-config) ================================================ FILE: drone/install.sh ================================================ # standard bash error handling set -o errexit; set -o pipefail; set -o nounset; # debug commands set -x; KUBECTL=v1.21.0 KIND=v0.11.0 install(){ wget -O /usr/local/bin/$1 $2 chmod +x /usr/local/bin/$1 } # installing kind install "kind" "https://github.com/kubernetes-sigs/kind/releases/download/${KIND}/kind-linux-amd64" #installing kubectl install "kubectl" "https://storage.googleapis.com/kubernetes-release/release/${KUBECTL}/bin/linux/amd64/kubectl" ================================================ FILE: drone/kind-config ================================================ apiVersion: kind.x-k8s.io/v1alpha4 kind: Cluster name: test networking: apiServerAddress: "0.0.0.0" nodes: # add to the apiServer certSANs the name of the drone service in order to be able to reach the cluster through it - role: control-plane kubeadmConfigPatches: - | kind: ClusterConfiguration apiServer: certSANs: - "docker" - role: worker ================================================ FILE: drone/setup.sh ================================================ # standard bash error handling set -o errexit; set -o pipefail; set -o nounset; # debug commands set -x; kind create cluster --name "$CLUSTER_NAME" --config drone/kind-config --wait 1m #replace localhost or 0.0.0.0 in the kubeconfig file with "docker", in order to be able to reach the cluster through the docker service sed -i -E -e 's/localhost|0\.0\.0\.0/'"$CLUSTER_HOST"'/g' ${KUBECONFIG} kubectl wait node --all --for condition=ready ================================================ FILE: gcb.md ================================================ # `kind` on Google Cloud Build This is very much a **hack**. Don't use this for real, take inspiration from it at max! The biggest hacks here are: - using `awk` to "parse" out the port that exposes the APIServer from an URL in a yaml file - the forwarding of the port from the host into the container where `kind` and the actual test is running: - inside the container, where `kind` and the actual test runs, we start a `socat` process which listens on a tcp port - when a connection to that port inside the container is made, we start another container in the host's network namespace. That container is able to connect to the exposed port on the host. Both `socat` processes are connected via their Stdin & Stdout. - we've essentially created a tunnel from within the container to the host for this one port - by default, `kind` exposes the APIServer on localhost (on the host), thus the kubeconfig file will hold something like `https://127.0.0.1:XXX/` as the server URL. Thus if we use the same port inside the container that `kind` has setup on the host, we can just use the same kubeconfig. ## Example `cloudbuild.yml` The following cloud build config can be used by running ```sh gcloud builds submit --config cloudbuild.yml --no-source ``` and will: - download current version of `kubectl` - compile `kind` from the tip of master - run `kind` to create a cluster - start a portforwarder to make the kube-apiserver accessible There are two things which can be configured via `--substitutions`, none of which is mandatory: - `KIND_CONFIG`: a [configuration for kind][kind-config] - `KIND_TESTS`: whatever should be run after the cluster hast been created, `KUBECONFIG` is setup for you Examples on what the substitutions could look like can be found in the following `cloudbuild.yml`. [kind-config]: https://kind.sigs.k8s.io/docs/user/quick-start/#configuring-your-kind-cluster ```yaml steps: - name: 'gcr.io/cloud-builders/git' args: - clone - https://github.com/kubernetes-sigs/kind - src/kind - name: 'gcr.io/cloud-builders/docker' entrypoint: bash dir: bin args: - -c - | curl -L https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl > kubectl chmod 0750 kubectl - name: golang dir: src/kind env: - CGO_ENABLED=0 - GO111MODULE=on args: - go - build - -o - ../../bin/kind - name: 'gcr.io/cloud-builders/docker' entrypoint: bash args: - -xeuc - | PATH="$${PATH}:$${PWD}/bin" { apt-get update -y apt-get install -y socat } >/dev/null kindArgs=( create cluster ) if [ -n "$_KIND_CONFIG" ] then echo "$_KIND_CONFIG" > /tmp/kind-config.yml kindArgs+=( --config=/tmp/kind-config.yml ) fi kind "$${kindArgs[@]}" KUBECONFIG="$$(mktemp)" kind get kubeconfig > "$$KUBECONFIG" export KUBECONFIG startForwarder() { local port # Gets the apiServerPort from the KUBECONFIG file. port="$( awk -F: '/server:/{ print $4 }' "$$KUBECONFIG" )" socat \ TCP-LISTEN:${port},reuseaddr,fork \ "EXEC:docker run --rm -i --network=host alpine/socat 'STDIO TCP-CONNECT:localhost:${port}'" } startForwarder & bash -xeuc "${_KIND_TESTS}" substitutions: _KIND_TESTS: | kubectl get nodes -o wide _KIND_CONFIG: | kind: Cluster apiVersion: kind.x-k8s.io/v1alpha4 nodes: - role: control-plane - role: worker ``` ================================================ FILE: gitlab/kind-config.yaml ================================================ apiVersion: kind.x-k8s.io/v1alpha4 kind: Cluster networking: apiServerAddress: "0.0.0.0" # add to the apiServer certSANs the name of the docker (dind) service in order to be able to reach the cluster through it kubeadmConfigPatchesJSON6902: - group: kubeadm.k8s.io version: v1beta2 kind: ClusterConfiguration patch: | - op: add path: /apiServer/certSANs/- value: docker nodes: - role: control-plane - role: worker ================================================ FILE: kind-config.yaml ================================================ # see: https://kind.sigs.k8s.io/docs/user/configuration/ kind: Cluster apiVersion: kind.x-k8s.io/v1alpha4 nodes: - role: control-plane ================================================ FILE: kind-smoketest.sh ================================================ #!/bin/bash # standard bash error handling set -o errexit; set -o pipefail; set -o nounset; # debug commands set -x; # working dir to install binaries etc, cleaned up on exit BIN_DIR="$(mktemp -d)" # kind binary will be here KIND="${BIN_DIR}/kind" CWD="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )" KIND_CONFIG="${CWD}/kind-config.yaml" # cleanup on exit (useful for running locally) cleanup() { "${KIND}" delete cluster || true rm -rf "${BIN_DIR}" } trap cleanup EXIT # util to install the latest kind version into ${BIN_DIR} install_latest_kind() { # clone kind into a tempdir within BIN_DIR local tmp_dir tmp_dir="$(TMPDIR="${BIN_DIR}" mktemp -d "${BIN_DIR}/kind-source.XXXXX")" cd "${tmp_dir}" || exit git clone https://github.com/kubernetes-sigs/kind && cd ./kind make install INSTALL_DIR="${BIN_DIR}" } # util to install a released kind version into ${BIN_DIR} install_kind_release() { VERSION="v0.5.1" KIND_BINARY_URL="https://github.com/kubernetes-sigs/kind/releases/download/${VERSION}/kind-linux-amd64" wget -O "${KIND}" "${KIND_BINARY_URL}" chmod +x "${KIND}" } main() { # get kind install_latest_kind # create a cluster "${KIND}" create cluster --loglevel=debug --config "${KIND_CONFIG}" # set KUBECONFIG to point to the cluster KUBECONFIG="$("${KIND}" get kubeconfig-path)" export KUBECONFIG # TODO: invoke your tests here # teardown will happen automatically on exit } main