feat(cloud): implement CRUD functions for Kubernetes cloud resource #821
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| 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: [self-hosted, jammy] | |
| timeout-minutes: 5 | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - uses: actions/setup-go@v5 | |
| with: | |
| go-version-file: "go.mod" | |
| cache: true | |
| - run: go build -v . | |
| # Run acceptance tests in a matrix with Terraform CLI versions | |
| add-machine-test: | |
| name: Add Machine | |
| needs: build | |
| runs-on: [self-hosted, jammy] | |
| env: | |
| ACTIONS_ALLOW_IPV6: false | |
| strategy: | |
| fail-fast: false | |
| matrix: | |
| # Only on lxd | |
| cloud: | |
| - "microk8s" | |
| terraform: | |
| - "1.9.*" | |
| timeout-minutes: 60 | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - uses: actions/setup-go@v5 | |
| with: | |
| go-version-file: "go.mod" | |
| cache: true | |
| # set up terraform | |
| - uses: hashicorp/setup-terraform@v3 | |
| 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: ${{ matrix.cloud }} | |
| juju-channel: 2.9/stable | |
| - run: go mod download | |
| - name: "Bring up loadbalancer & access via terraform plan" | |
| run: | | |
| echo "Determine Juju details" | |
| CONTROLLER=$(juju whoami --format yaml | yq .controller) | |
| JUJU_AGENT_VERSION=$(juju show-controller | yq .$CONTROLLER.details.agent-version |tr -d '"') | |
| JUJU_USERNAME=$(juju show-controller | yq .$CONTROLLER.account.user) | |
| JUJU_PASSWORD=$(cat ~/.local/share/juju/accounts.yaml | yq .controllers.$CONTROLLER.password) | |
| JUJU_CA_CERT=$(juju show-controller | yq .$CONTROLLER.details.ca-cert | sed ':a;N;$!ba;s/\n/\\n/g') | |
| # Ensure Juju controller name | |
| echo "Controller name: $CONTROLLER" | |
| echo "Juju Username: $JUJU_USERNAME" | |
| # Enable Ingress in MicroK8s | |
| sudo microk8s enable ingress | |
| # Determine a subnet for MetalLB | |
| subnet="$(ip route get 1 | head -n 1 | awk '{print $7}' | awk -F. '{print $1 "." $2 "." $3 ".240/24"}')" | |
| echo "MetalLB subnet: $subnet" | |
| # Add the current user to the microk8s group | |
| echo "Adding current user to the microk8s group" | |
| sudo usermod -a -G microk8s $(whoami) | |
| chown -R $(whoami) ~/.kube | |
| # Apply changes to group membership | |
| newgrp microk8s | |
| /snap/microk8s/current/usr/bin/env | |
| # Enable MetalLB on MicroK8s | |
| sudo microk8s enable metallb:$subnet | |
| namespace="controller-$CONTROLLER" | |
| service_name="controller-service-lb" | |
| # Display services layout | |
| echo "Services layout:" | |
| sudo microk8s.kubectl get services -n $namespace | |
| # Create a LoadBalancer service | |
| sudo microk8s.kubectl apply -f - <<EOF | |
| apiVersion: v1 | |
| kind: Service | |
| metadata: | |
| name: $service_name | |
| namespace: $namespace | |
| 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 | |
| echo "Load Balancer service created." | |
| # Display services layout with the Load Balancer | |
| echo "Services layout with the Load Balancer:" | |
| sudo microk8s.kubectl get services -n $namespace | |
| echo "Waiting for external IP for $service_name in $namespace..." | |
| external_ip="" | |
| attempts=0 | |
| max_attempts=3 | |
| while [ -z "$external_ip" ] && [ "$attempts" -lt "$max_attempts" ]; do | |
| external_ip="$(sudo microk8s.kubectl get service -n "$namespace" "$service_name" -o=jsonpath='{.status.loadBalancer.ingress[0].ip}')" | |
| if [ -z "$external_ip" ]; then | |
| echo "External IP not yet assigned. Waiting..." | |
| attempts=$((attempts + 1)) | |
| sleep 5 | |
| fi | |
| done | |
| if [ -z "$external_ip" ]; then | |
| echo "External IP not assigned after $max_attempts attempts. Exiting..." | |
| exit 1 | |
| else | |
| echo "LoadBalancer service ready at IP: $external_ip" | |
| fi | |
| # Write the Terraform configuration file | |
| echo " | |
| terraform { | |
| required_providers { | |
| juju = { | |
| source = \"juju/juju\" | |
| version = \">= 0.9.1\" | |
| } | |
| } | |
| } | |
| provider \"juju\" { | |
| controller_addresses = \"$external_ip:17070\" | |
| username = \"$JUJU_USERNAME\" | |
| password = \"$JUJU_PASSWORD\" | |
| ca_certificate = \"$JUJU_CA_CERT\" | |
| } | |
| resource \"juju_model\" \"testmodel\" { | |
| name = \"test-model\" | |
| } | |
| resource \"juju_application\" \"testapp\" { | |
| name = \"juju-qa-test\" | |
| model = juju_model.testmodel.name | |
| charm { | |
| name = \"juju-qa-test\" | |
| } | |
| } | |
| " > ./terraform_config.tf | |
| echo "====== Using Terraform Config: ===========" | |
| cat ./terraform_config.tf | |
| echo "==========================================" | |
| # Initialize and apply Terraform | |
| echo "Initializing Terraform..." | |
| terraform init | |
| echo "Planning Terraform changes..." | |
| terraform plan | |
| echo "Applying Terraform changes..." | |
| terraform apply --auto-approve | |
| # Cleanup: Remove Terraform configuration file | |
| rm ./terraform_config.tf |