Multicluster #10989
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| name: Multicluster | |
| # Any change in triggers needs to be reflected in the concurrency group. | |
| on: | |
| ### FOR TESTING PURPOSES | |
| # This workflow runs in the context of `main`, and ignores changes to | |
| # workflow files in PRs. For testing changes to this workflow from a PR: | |
| # - Make sure the PR uses a branch from the base repository (requires write | |
| # privileges). It will not work with a branch from a fork (missing secrets). | |
| # - Uncomment the `pull_request` event below, commit separately with a `DO | |
| # NOT MERGE` message, and push to the PR. As long as the commit is present, | |
| # any push to the PR will trigger this workflow. | |
| # - Don't forget to remove the `DO NOT MERGE` commit once satisfied. The run | |
| # will disappear from the PR checks: please provide a direct link to the | |
| # successful workflow run (can be found from Actions tab) in a comment. | |
| # | |
| # pull_request: {} | |
| ### | |
| pull_request_target: {} | |
| # Run every 6 hours | |
| schedule: | |
| - cron: '0 3/6 * * *' | |
| # By specifying the access of one of the scopes, all of those that are not | |
| # specified are set to 'none'. | |
| permissions: | |
| # To be able to access the repository with actions/checkout | |
| contents: read | |
| # To be able to request the JWT from GitHub's OIDC provider | |
| id-token: write | |
| concurrency: | |
| group: ${{ github.workflow }}-${{ github.event.pull_request.number || 'scheduled' }} | |
| cancel-in-progress: true | |
| env: | |
| zone: us-west2-a | |
| # renovate: datasource=github-releases depName=cilium/cilium | |
| cilium_version: v1.16.3 | |
| kubectl_version: v1.23.6 | |
| USE_GKE_GCLOUD_AUTH_PLUGIN: True | |
| jobs: | |
| installation-and-connectivity: | |
| name: Multicluster Installation and Connectivity Test | |
| if: ${{ github.repository == 'cilium/cilium-cli' }} | |
| runs-on: ubuntu-24.04 | |
| timeout-minutes: 45 | |
| strategy: | |
| fail-fast: false | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2 | |
| # Note: These names currently approach the limit of 40 characters | |
| - name: Set mode-specific names | |
| run: | | |
| echo "clusterNameBase=${{ github.event.repository.name }}-${{ github.run_id }}-${{ github.run_attempt }}" >> $GITHUB_ENV | |
| echo "clusterName1=${{ github.event.repository.name }}-${{ github.run_id }}-${{ github.run_attempt }}-1" >> $GITHUB_ENV | |
| echo "clusterName2=${{ github.event.repository.name }}-${{ github.run_id }}-${{ github.run_attempt }}-2" >> $GITHUB_ENV | |
| echo "firewallRuleName=${{ github.event.repository.name }}-${{ github.run_id }}-${{ github.run_attempt }}" >> $GITHUB_ENV | |
| - name: Install kubectl | |
| run: | | |
| curl -sLO "https://dl.k8s.io/release/${{ env.kubectl_version }}/bin/linux/amd64/kubectl" | |
| curl -sLO "https://dl.k8s.io/${{ env.kubectl_version }}/bin/linux/amd64/kubectl.sha256" | |
| echo "$(cat kubectl.sha256) kubectl" | sha256sum --check | |
| sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl | |
| kubectl version --client | |
| - name: Set up gcloud credentials | |
| id: 'auth' | |
| uses: google-github-actions/auth@6fc4af4b145ae7821d527454aa9bd537d1f2dc5f # v2.1.7 | |
| with: | |
| workload_identity_provider: ${{ secrets.GCP_PR_WORKLOAD_IDENTITY_PROVIDER }} | |
| service_account: ${{ secrets.GCP_PR_SA_CLI }} | |
| create_credentials_file: true | |
| export_environment_variables: true | |
| - name: Set up gcloud CLI | |
| uses: google-github-actions/setup-gcloud@6189d56e4096ee891640bb02ac264be376592d6a # v2.1.2 | |
| with: | |
| project_id: ${{ secrets.GCP_PR_PROJECT_ID }} | |
| version: "405.0.0" | |
| - name: Install gke-gcloud-auth-plugin | |
| run: | | |
| gcloud components install gke-gcloud-auth-plugin | |
| - name: Display gcloud CLI info | |
| run: | | |
| gcloud info | |
| - name: Set up Go | |
| uses: actions/setup-go@41dfa10bad2bb2ae585af6ee5bb4d7d973ad74ed # v5.1.0 | |
| with: | |
| # renovate: datasource=golang-version depName=go | |
| go-version: 1.23.3 | |
| - name: Set up job variables | |
| id: vars | |
| run: | | |
| if [ ${{ github.event.issue.pull_request || github.event.pull_request }} ]; then | |
| PR_API_JSON=$(curl \ | |
| -H "Accept: application/vnd.github.v3+json" \ | |
| -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \ | |
| ${{ github.event.issue.pull_request.url || github.event.pull_request.url }}) | |
| SHA=$(echo "$PR_API_JSON" | jq -r ".head.sha") | |
| OWNER=$(echo "$PR_API_JSON" | jq -r ".number") | |
| else | |
| SHA=${{ github.sha }} | |
| OWNER=${{ github.sha }} | |
| fi | |
| echo "sha=${SHA}" >> $GITHUB_OUTPUT | |
| echo "owner=${OWNER}" >> $GITHUB_OUTPUT | |
| - name: Create GKE cluster 2 | |
| run: | | |
| gcloud container clusters create ${{ env.clusterName2 }} \ | |
| --labels "usage=${{ github.repository_owner }}-${{ github.event.repository.name }},owner=${{ steps.vars.outputs.owner }}" \ | |
| --zone ${{ env.zone }} \ | |
| --enable-ip-alias \ | |
| --create-subnetwork="range=/26" \ | |
| --cluster-ipv4-cidr="/21" \ | |
| --services-ipv4-cidr="/24" \ | |
| --image-type COS_CONTAINERD \ | |
| --num-nodes 2 \ | |
| --machine-type e2-custom-2-4096 \ | |
| --disk-type pd-standard \ | |
| --disk-size 20GB \ | |
| --node-taints node.cilium.io/agent-not-ready=true:NoExecute \ | |
| --preemptible \ | |
| --async | |
| - name: Create GKE cluster 1 | |
| run: | | |
| gcloud container clusters create ${{ env.clusterName1 }} \ | |
| --labels "usage=${{ github.repository_owner }}-${{ github.event.repository.name }},owner=${{ steps.vars.outputs.owner }}" \ | |
| --zone ${{ env.zone }} \ | |
| --enable-ip-alias \ | |
| --create-subnetwork="range=/26" \ | |
| --cluster-ipv4-cidr="/21" \ | |
| --services-ipv4-cidr="/24" \ | |
| --image-type COS_CONTAINERD \ | |
| --num-nodes 2 \ | |
| --machine-type e2-custom-2-4096 \ | |
| --disk-type pd-standard \ | |
| --disk-size 20GB \ | |
| --node-taints node.cilium.io/agent-not-ready=true:NoExecute \ | |
| --preemptible \ | |
| --async | |
| - name: Wait for clusters to be provisioned | |
| run: | | |
| while [ "$(gcloud container operations list --filter="status=RUNNING AND targetLink~${{ env.clusterNameBase }}" --format="value(name)")" ];do | |
| echo "cluster has an ongoing operation, waiting for all operations to finish"; sleep 10 | |
| done | |
| - name: Get cluster credentials and save context names | |
| id: contexts | |
| run: | | |
| gcloud container clusters get-credentials ${{ env.clusterName1 }} --zone ${{ env.zone }} | |
| gcloud container clusters get-credentials ${{ env.clusterName2 }} --zone ${{ env.zone }} | |
| CLUSTER1=$(kubectl config view | grep "${{ env.clusterName1 }}" | head -1 | awk '{print $2}') | |
| CLUSTER2=$(kubectl config view | grep "${{ env.clusterName2 }}" | head -1 | awk '{print $2}') | |
| echo "cluster1=${CLUSTER1}" >> $GITHUB_OUTPUT | |
| echo "cluster2=${CLUSTER2}" >> $GITHUB_OUTPUT | |
| - name: Allow cross-cluster traffic | |
| run: | | |
| TAG1=$(gcloud compute firewall-rules list --filter="name~^gke-${{ env.clusterName1 }}-[0-9a-z]*-all$" --format="value(name)") | |
| TAG2=$(gcloud compute firewall-rules list --filter="name~^gke-${{ env.clusterName2 }}-[0-9a-z]*-all$" --format="value(name)") | |
| gcloud compute firewall-rules describe $TAG1 | |
| gcloud compute firewall-rules describe $TAG2 | |
| gcloud compute firewall-rules create ${{ env.firewallRuleName }} --allow tcp,udp,icmp,sctp,esp,ah --priority=999 --source-ranges=10.0.0.0/9 --target-tags=${TAG1/-all/-node},${TAG2/-all/-node} | |
| gcloud compute firewall-rules describe ${{ env.firewallRuleName }} | |
| - name: Install Cilium CLI | |
| uses: ./ | |
| with: | |
| skip-build: 'true' | |
| image-tag: ${{ steps.vars.outputs.sha }} | |
| - name: Install Cilium and run tests | |
| timeout-minutes: 60 | |
| run: | | |
| # Install Cilium in cluster1 | |
| cilium install \ | |
| --version "${{ env.cilium_version }}" \ | |
| --context "${{ steps.contexts.outputs.cluster1 }}" \ | |
| --set loadBalancer.l7.backend=envoy \ | |
| --set tls.secretsBackend=k8s \ | |
| --set cluster.name="${{ env.clusterName1 }}" \ | |
| --set cluster.id=1 \ | |
| --set bpf.monitorAggregation=none \ | |
| --set ipv4NativeRoutingCIDR=10.0.0.0/9 \ | |
| --set hubble.eventQueueSize=65536 | |
| # Copy the CA cert from cluster1 to cluster2 | |
| kubectl --context ${{ steps.contexts.outputs.cluster1 }} get secrets -n kube-system cilium-ca -oyaml \ | |
| | kubectl --context ${{ steps.contexts.outputs.cluster2 }} apply -f - | |
| # This seeds all CAs in cluster2 due to logic in the helm chart found here, e.g. for Hubble | |
| # https://github.com/cilium/cilium/blob/8b6aa6eda91927275ae722ac020deeb5a9ce479d/install/kubernetes/cilium/templates/hubble/tls-helm/_helpers.tpl#L24-L33 | |
| # Install Cilium in cluster2 | |
| cilium install \ | |
| --version "${{ env.cilium_version }}" \ | |
| --context "${{ steps.contexts.outputs.cluster2 }}" \ | |
| --set loadBalancer.l7.backend=envoy \ | |
| --set tls.secretsBackend=k8s \ | |
| --set cluster.name="${{ env.clusterName2 }}" \ | |
| --set cluster.id=2 \ | |
| --set bpf.monitorAggregation=none \ | |
| --set ipv4NativeRoutingCIDR=10.0.0.0/9 \ | |
| --set hubble.eventQueueSize=65536 | |
| # Enable Relay | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" hubble enable | |
| cilium --context "${{ steps.contexts.outputs.cluster2 }}" hubble enable --relay=false | |
| # Wait for cilium and hubble relay to be ready | |
| # NB: necessary to work against occassional flakes due to https://github.com/cilium/cilium-cli/issues/918 | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" status --wait | |
| cilium --context "${{ steps.contexts.outputs.cluster2 }}" status --wait | |
| # Enable cluster mesh | |
| # Test autodetection of service parameters for GKE | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" clustermesh enable | |
| cilium --context "${{ steps.contexts.outputs.cluster2 }}" clustermesh enable | |
| # Wait for cluster mesh status to be ready | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" clustermesh status --wait | |
| cilium --context "${{ steps.contexts.outputs.cluster2 }}" clustermesh status --wait | |
| # Print clustermesh Service annotations | |
| printf "Service annotations for Cluster 1 %s\n" \ | |
| $(kubectl --context "${{ steps.contexts.outputs.cluster1 }}" get svc -n kube-system clustermesh-apiserver -o jsonpath='{.metadata.annotations}') | |
| printf "Service annotations for Cluster 2 %s\n" \ | |
| $(kubectl --context "${{ steps.contexts.outputs.cluster2 }}" get svc -n kube-system clustermesh-apiserver -o jsonpath='{.metadata.annotations}') | |
| # Connect clusters | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" clustermesh connect --destination-context "${{ steps.contexts.outputs.cluster2 }}" | |
| # Wait for cluster mesh status to be ready | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" clustermesh status --wait | |
| cilium --context "${{ steps.contexts.outputs.cluster2 }}" clustermesh status --wait | |
| # Port forward Relay | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" hubble port-forward& | |
| sleep 10s | |
| nc -nvz 127.0.0.1 4245 | |
| # Run connectivity test | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" connectivity test --test-concurrency=5 \ | |
| --multi-cluster "${{ steps.contexts.outputs.cluster2 }}" --test '!/*-deny,!/pod-to-.*-nodeport' \ | |
| --all-flows --collect-sysdump-on-failure --external-target google.com. | |
| - name: Post-test information gathering | |
| if: ${{ !success() }} | |
| run: | | |
| echo "=== Retrieve cluster1 state ===" | |
| kubectl --context "${{ steps.contexts.outputs.cluster1 }}" get pods --all-namespaces -o wide | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" status | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" clustermesh status | |
| cilium --context "${{ steps.contexts.outputs.cluster1 }}" sysdump --output-filename cilium-sysdump-cluster1 | |
| echo "=== Retrieve cluster2 state ===" | |
| kubectl --context "${{ steps.contexts.outputs.cluster2 }}" get pods --all-namespaces -o wide | |
| cilium --context "${{ steps.contexts.outputs.cluster2 }}" status | |
| cilium --context "${{ steps.contexts.outputs.cluster2 }}" clustermesh status | |
| cilium --context "${{ steps.contexts.outputs.cluster2 }}" sysdump --output-filename cilium-sysdump-cluster2 | |
| shell: bash {0} # Disable default fail-fast behaviour so that all commands run independently | |
| - name: Clean up GKE | |
| if: ${{ always() }} | |
| run: | | |
| while [ "$(gcloud container operations list --filter="status=RUNNING AND targetLink~${{ env.clusterNameBase }}" --format="value(name)")" ];do | |
| echo "cluster has an ongoing operation, waiting for all operations to finish"; sleep 15 | |
| done | |
| gcloud container clusters delete ${{ env.clusterName1 }} --zone ${{ env.zone }} --quiet --async | |
| gcloud container clusters delete ${{ env.clusterName2 }} --zone ${{ env.zone }} --quiet --async | |
| gcloud compute firewall-rules delete ${{ env.firewallRuleName }} --quiet | |
| shell: bash {0} # Disable default fail-fast behavior so that all commands run independently | |
| - name: Upload artifacts | |
| if: ${{ !success() }} | |
| uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4.4.3 | |
| with: | |
| name: cilium-sysdump-out.zip | |
| path: | | |
| cilium-sysdump-cluster1.zip | |
| cilium-sysdump-cluster2.zip | |
| retention-days: 5 |