action.yml

# Forked version of @mattes's gce-cloudsql-proxy-action (https://github.com/mattes/gce-cloudsql-proxy-action)
# to support Cloud SQL Auth proxy v2 & add a few small

name: "CloudSQL Proxy for Github Actions"
description: "Use the CloudSQL Proxy with your Github Actions"

branding:
  icon: "database"
  color: "purple"

inputs:
  creds:
    description: "Contents of a Service Account JSON Key"
    required: true
  instance:
    description: "CloudSQL instance"
    required: true
  port:
    description: "Listen on port"
    required: false
    default: 5432
  proxy_version:
    description: "CloudSQL Proxy Version"
    required: false
    default: 2.20.0
  startup_attempts:
    description: "Number of attempts to wait for the proxy to start"
    required: false
    default: 10

runs:
  using: "composite"
  steps:
    - name: Start Google Cloud SQL Proxy
      shell: bash
      run: |
        # write google application credentials to a temporary file to be used inside the container
        mkdir -p /tmp/cloudsql-proxy
        echo '${{ inputs.creds }}' > /tmp/cloudsql-proxy/key.json

        # start container
        docker run -d --net host --name cloudsql-proxy --restart on-failure \
        -v /tmp/cloudsql-proxy:/tmp/cloudsql-proxy \
        gcr.io/cloud-sql-connectors/cloud-sql-proxy:${{ inputs.proxy_version }} \
          --credentials-file /tmp/cloudsql-proxy/key.json \
          --address 127.0.0.1 \
          --port ${{ inputs.port }} \
          ${{ inputs.instance }}

        # wait until connections are accepted
        sleep 3
        isReady=0
        maxAttempts=${{ inputs.startup_attempts }}
        for i in $(seq 1 $maxAttempts); do
          echo "Wait for connections to be ready ... $i/$maxAttempts"
          (${{ github.action_path }}/wait-for-it.sh --quiet --timeout=3 --host=127.0.0.1 --port=${{ inputs.port }} || exit $?) && true # escape bash's pipefail
          isReady=$?
          if [[ $isReady -eq 0 ]]; then
            break
          fi
          sleep 2
        done

        # print container logs
        docker logs cloudsql-proxy

        # exit with error code if we couldn't connect
        if [[ $isReady -ne 0 ]]; then
          exit $isReady 
        fi