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| name: Multi node cluster with managed runners, Ubuntu, Kubespray | |
| on: | |
| push: | |
| # branches: [ main ] | |
| workflow_dispatch: | |
| env: | |
| num_nodes: 4 | |
| jobs: | |
| define-matrix: | |
| runs-on: ubuntu-latest | |
| outputs: | |
| nodes: ${{ steps.nodes.outputs.nodes }} | |
| steps: | |
| - id: nodes | |
| run: | | |
| nodes=$(python -c "print(list(range($num_nodes)))") | |
| echo nodes="$nodes" >>$GITHUB_OUTPUT | |
| control-node: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - run: | | |
| hostname -i >control-node-ip.txt | |
| ssh-keygen -q -b 2048 -t rsa -N '' -C 'cluster key' -f ~/.ssh/id_rsa | |
| cp ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys | |
| cp ~/.ssh/id_rsa.pub . | |
| - name: Upload control node data | |
| uses: actions/upload-artifact@v4 | |
| with: | |
| name: control-node | |
| path: | | |
| control-node-ip.txt | |
| id_rsa.pub | |
| - run: | | |
| systemctl status sshd | |
| ssh -o StrictHostKeyChecking=no $(hostname -i) echo hello | |
| sleep 200 | |
| nodes: | |
| needs: [define-matrix] | |
| runs-on: ubuntu-latest | |
| strategy: | |
| matrix: | |
| id: ${{ fromJSON(needs.define-matrix.outputs.nodes) }} | |
| steps: | |
| - run: | | |
| sleep 60 | |
| - uses: actions/download-artifact@v4 | |
| with: | |
| name: control-node | |
| - run: | | |
| set -vx | |
| echo ${{ matrix.id }} | |
| ip=$(cat control-node-ip.txt) | |
| mkdir .ssh | |
| chmod 700 .ssh | |
| chmod 600 id_rsa.pub | |
| mv id_rsa.pub .ssh/ | |
| ssh -o StrictHostKeyChecking=no $ip echo hello | |