Add workflow to use loadbalancer as a tunnel to juju controller on k8s #12
Workflow file for this run
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| name: Tunnel to Juju controller via load balancer on k8s | |
| on: | |
| pull_request: | |
| paths-ignore: | |
| - "README.md" | |
| - "project-docs/**" | |
| push: | |
| branches: | |
| - "main" | |
| paths-ignore: | |
| - "README.md" | |
| - "project-docs/**" | |
| # Testing only needs permissions to read the repository contents. | |
| permissions: | |
| contents: read | |
| jobs: | |
| # Ensure project builds before running testing matrix | |
| build: | |
| name: Build | |
| runs-on: ubuntu-latest | |
| timeout-minutes: 5 | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - uses: actions/setup-go@v4 | |
| - run: go build -v . | |
| # Run acceptance tests in a matrix with Terraform CLI versions | |
| add-machine-test: | |
| name: Add Machine | |
| needs: build | |
| runs-on: ubuntu-latest | |
| env: | |
| ACTIONS_ALLOW_IPV6: false | |
| strategy: | |
| fail-fast: false | |
| matrix: | |
| # Only on lxd | |
| cloud: | |
| - "microk8s" | |
| terraform: | |
| - "1.5.*" | |
| timeout-minutes: 60 | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - uses: actions/setup-go@v4 | |
| with: | |
| go-version-file: "go.mod" | |
| cache: true | |
| # set up terraform | |
| - uses: hashicorp/setup-terraform@v2 | |
| with: | |
| terraform_version: ${{ matrix.terraform }} | |
| terraform_wrapper: false | |
| # set up snap, lxd, tox, Juju, bootstrap a controller, etc. | |
| - name: Setup operator environment | |
| uses: charmed-kubernetes/actions-operator@main | |
| with: | |
| provider: ${{ matrix.cloud }} | |
| juju-channel: 2.9/stable | |
| - name: "Set environment to configure provider" | |
| # language=bash | |
| run: | | |
| CONTROLLER=$(juju whoami --format yaml | yq .controller) | |
| echo "JUJU_CONTROLLER_ADDRESSES=$(juju show-controller | yq .$CONTROLLER.details.api-endpoints | yq -r '. | join(",")')" >> $GITHUB_ENV | |
| echo "JUJU_USERNAME=$(juju show-controller | yq .$CONTROLLER.account.user)" >> $GITHUB_ENV | |
| echo "JUJU_PASSWORD=$(cat ~/.local/share/juju/accounts.yaml | yq .controllers.$CONTROLLER.password)" >> $GITHUB_ENV | |
| echo "JUJU_CA_CERT<<EOF" >> $GITHUB_ENV | |
| juju show-controller | yq .$CONTROLLER.details.ca-cert >> $GITHUB_ENV | |
| echo "EOF" >> $GITHUB_ENV | |
| - run: go mod download | |
| - name: "Bring up loadbalancer & access via terraform plan" | |
| run: | | |
| CONTROLLER=$(juju whoami --format yaml | yq .controller) | |
| # enable ingress and metallb to | |
| sudo microk8s enable ingress | |
| echo "Ingress enabled." | |
| # determine a subnet for metallb | |
| subnet="$(ip route get 1 | head -n 1 | awk '{print $7}' | awk -F. '{print $1 "." $2 "." $3 ".240/24"}')"; echo "$subnet" | |
| # enable metallb | |
| sudo microk8s enable metallb:$subnet | |
| # Make sure we have sufficient permissions to access microk8s | |
| echo "Adding runner user microk8s group" | |
| sudo usermod -a -G microk8s runner | |
| sudo chown -R runner ~/.kube | |
| newgrp microk8s | |
| # Make sure controller name is resolved | |
| echo "Controller name: $CONTROLLER" | |
| echo "Juju Username : $JUJU_USERNAME" | |
| echo "Services layout:" | |
| sudo microk8s.kubectl get services -n controller-$CONTROLLER controller-service | |
| # bring up the load balancer service | |
| sudo microk8s.kubectl apply -f - <<EOF | |
| apiVersion: v1 | |
| kind: Service | |
| metadata: | |
| name: controller-service-lb | |
| namespace: controller-$CONTROLLER | |
| spec: | |
| ipFamilies: | |
| - IPv4 | |
| ipFamilyPolicy: SingleStack | |
| ports: | |
| - name: api-server | |
| port: 17070 | |
| protocol: TCP | |
| targetPort: 17070 | |
| selector: | |
| app.kubernetes.io/name: controller | |
| sessionAffinity: None | |
| type: LoadBalancer | |
| EOF | |
| # get the external IP of the load balancer service | |
| export LB_IP=$(microk8s.kubectl get services -n controller-$CONTROLLER | grep -o 'controller-service-lb.*' | awk '{print $4}') | |
| # write a plan using this IP | |
| echo " | |
| provider \"juju\" { | |
| controller_addresses = $LB_IP | |
| username = $JUJU_USERNAME | |
| password = $JUJU_PASSWORD | |
| ca_certificate = $JUJU_CA_CERT | |
| } | |
| resource \"juju_model\" \"testmodel\" { | |
| name = \"test-model\" | |
| } | |
| resource \"juju_application\" \"testapp\" { | |
| name = \"ubuntu\" | |
| model = juju_model.testmodel.name | |
| charm { | |
| name = \"ubuntu\" | |
| } | |
| } | |
| " > ./terraform_config.tf | |
| terraform init && terraform plan && terraform apply --auto-approve | |