Delete EKS Cluster After TTL #621
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| name: Delete EKS Cluster After TTL | |
| on: | |
| schedule: | |
| - cron: '0 0 * * *' | |
| workflow_dispatch: {} | |
| env: | |
| AWS_REGION: "eu-north-1" | |
| jobs: | |
| Check-delete-after-for-running-clusters: | |
| runs-on: ubuntu-latest | |
| outputs: | |
| noTTL: ${{ steps.checkClusters.outputs.noTTL }} | |
| deleteClusters: ${{ steps.checkClusters.outputs.deleteClusters }} | |
| zeroDaysClusters: ${{ steps.checkClusters.outputs.zeroDaysClusters }} | |
| threeDaysClusters: ${{ steps.checkClusters.outputs.threeDaysClusters }} | |
| permissions: | |
| id-token: write | |
| contents: read | |
| steps: | |
| - uses: actions/checkout@v3 | |
| - name: Install aws-cli | |
| run: | | |
| curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip" | |
| unzip awscliv2.zip | |
| sudo ./aws/install --update | |
| aws --version | |
| - name: Install eksctl | |
| run: | | |
| curl --silent --location "https://github.com/weaveworks/eksctl/releases/download/v0.109.0//eksctl_$(uname -s)_amd64.tar.gz" | tar xz -C /tmp | |
| sudo mv /tmp/eksctl /usr/local/bin | |
| eksctl version | |
| - name: Configure AWS Credentials | |
| uses: aws-actions/configure-aws-credentials@v1 | |
| with: | |
| role-to-assume: arn:aws:iam::894516026745:role/WeaveEksGithubActions | |
| aws-region: eu-north-1 | |
| - name: Check delete-after tag for running clusters | |
| id: checkClusters | |
| run: | | |
| declare -a fiveDaysClusters | |
| declare -a threeDaysClusters | |
| declare -a zeroDaysClusters | |
| declare -a deleteClusters | |
| declare -a noTTL | |
| for clusterName in `eksctl get clusters --region ${AWS_REGION} -o json | jq -r '.[] | .Name'` | |
| do | |
| echo "Checking delete-after for cluster '${clusterName}'" | |
| CLUSTER=`eksctl get cluster --region ${AWS_REGION} -n $clusterName -o json` | |
| CREATION_TIME=`echo $CLUSTER | jq -r '.[] | .CreatedAt'` | |
| CREATION_TIME=`date -d "${CREATION_TIME}"` | |
| echo "CreatedAt: ${CREATION_TIME}" | |
| DELETE_AFTER=`echo $CLUSTER | jq -r '.[] | .Tags | ."delete-after" // empty'` | |
| if [ -z $DELETE_AFTER ] | |
| then | |
| echo -e "[WARNING] delete-after tag is not configured for cluster '${clusterName}'" | |
| noTTL+=("${clusterName}") | |
| else | |
| echo "delete-after: ${DELETE_AFTER} days" | |
| DELETION_DATE=`date -d "${CREATION_TIME} ${DELETE_AFTER} days"` | |
| echo "DeleteAt: ${DELETION_DATE}" | |
| DELETION_TIME=`date -d "${CREATION_TIME} ${DELETE_AFTER} days" +%s` | |
| TODAY=`date +%s` | |
| SECS=$(($DELETION_TIME - $TODAY)) | |
| remainingDays=$((${SECS} / 86400)) | |
| echo "remainindDays: ${remainingDays} day" | |
| case ${remainingDays} in | |
| 0) | |
| echo "[WARNING] Cluster will be deleted tomorrow!" | |
| zeroDaysClusters+=("${clusterName}") | |
| ;; | |
| 3) | |
| echo "[WARNING] Cluster will be deleted in ${remainingDays} days!" | |
| threeDaysClusters+=("${clusterName}") | |
| ;; | |
| 5) | |
| echo "[WARNING] Cluster will be deleted in ${remainingDays} days!" | |
| fiveDaysClusters+=("${clusterName}") | |
| ;; | |
| -[1-9]*) | |
| echo "[Alert] The cluster will be deleted now!" | |
| deleteClusters+=("${clusterName}") | |
| ;; | |
| esac | |
| fi | |
| echo -e | |
| done | |
| echo "noTTL Clusters: ${noTTL[@]}" | |
| echo "noTTL=${noTTL[@]}" >> $GITHUB_OUTPUT | |
| echo "deleteClusters: ${deleteClusters[@]}" | |
| echo "deleteClusters=${deleteClusters[@]}" >> $GITHUB_OUTPUT | |
| echo "zeroDaysClusters: ${zeroDaysClusters[@]}" | |
| echo "zeroDaysClusters=${zeroDaysClusters[@]}" >> $GITHUB_OUTPUT | |
| echo "threeDaysClusters: ${threeDaysClusters[@]}" | |
| echo "threeDaysClusters=${threeDaysClusters[@]}" >> $GITHUB_OUTPUT | |
| delete-clusters: | |
| if: needs.Check-delete-after-for-running-clusters.outputs.deleteClusters != '' | |
| runs-on: ubuntu-latest | |
| needs: | |
| - Check-delete-after-for-running-clusters | |
| permissions: | |
| id-token: write | |
| contents: read | |
| steps: | |
| - uses: actions/checkout@v3 | |
| with: | |
| token: ${{ secrets.WEAVE_GITOPS_BOT_TOKEN_CLUSTERS_CONFIG }} | |
| - name: delete clusters' branch | |
| run: | | |
| git config --global user.email "weave-gitops-bot@weave.works" | |
| git config --global user.name "weave-gitops-bot" | |
| echo "The following clusters are being deleted:" | |
| echo ${{needs.Check-delete-after-for-running-clusters.outputs.deleteClusters}} | |
| for cluster in ${{needs.Check-delete-after-for-running-clusters.outputs.deleteClusters}} | |
| do | |
| export BRANCH_NAME=cluster-${cluster} | |
| echo "Deleting cluster ${cluster} by deleting its branch ${BRANCH_NAME}!" | |
| git push origin --delete ${BRANCH_NAME} | |
| done | |
| deleteClusters-slack-notification: | |
| if: needs.Check-delete-after-for-running-clusters.outputs.deleteClusters != '' | |
| needs: | |
| - Check-delete-after-for-running-clusters | |
| uses: ./.github/workflows/slack-notification.yaml | |
| with: | |
| header-text: "The following clusters are being deleted:" | |
| message: "${{needs.Check-delete-after-for-running-clusters.outputs.deleteClusters}}" | |
| secrets: | |
| SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} | |
| noTTL-slack-notifications: | |
| if: needs.Check-delete-after-for-running-clusters.outputs.noTTL != '' | |
| needs: | |
| - Check-delete-after-for-running-clusters | |
| uses: ./.github/workflows/slack-notification.yaml | |
| with: | |
| header-text: "The following clusters don't have delete-after tag:" | |
| message: "${{needs.Check-delete-after-for-running-clusters.outputs.noTTL}}" | |
| secrets: | |
| SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} | |
| zeroDaysClusters-slack-notifications: | |
| if: needs.Check-delete-after-for-running-clusters.outputs.zeroDaysClusters != '' | |
| needs: | |
| - Check-delete-after-for-running-clusters | |
| uses: ./.github/workflows/slack-notification.yaml | |
| with: | |
| header-text: "The following clusters will be deleted tomorrow:" | |
| message: "${{needs.Check-delete-after-for-running-clusters.outputs.zeroDaysClusters}}" | |
| secrets: | |
| SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} | |
| threeDaysClusters-slack-notifications: | |
| if: needs.Check-delete-after-for-running-clusters.outputs.threeDaysClusters != '' | |
| needs: | |
| - Check-delete-after-for-running-clusters | |
| uses: ./.github/workflows/slack-notification.yaml | |
| with: | |
| header-text: "The following clusters will be deleted in 3 days:" | |
| message: "${{needs.Check-delete-after-for-running-clusters.outputs.threeDaysClusters}}" | |
| secrets: | |
| SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} |