genai-toolbox/.github/workflows/publish-mcp.yml

# Copyright 2025 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

name: Publish to MCP Registry

on:
  push:
    tags: ["v*"]  # Triggers on version tags like v1.0.0
  # allow manual triggering with no inputs required
  workflow_dispatch:

jobs:
  publish:
    runs-on: ubuntu-latest
    permissions:
      id-token: write  # Required for OIDC authentication
      contents: read

    steps:
      - name: Checkout code
        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6

      - name: Wait for image in Artifact Registry
        shell: bash
        run: |
          MAX_ATTEMPTS=10
          VERSION=$(jq -r '.version' server.json)
          REGISTRY_URL="https://us-central1-docker.pkg.dev/v2/database-toolbox/toolbox/toolbox/manifests/${VERSION}"

          # initially sleep time to wait for the version release
          sleep 3m

          for i in $(seq 1 ${MAX_ATTEMPTS}); do
            echo "Attempt $i: Checking for image ${REGISTRY_URL}..."
            # Use curl to check the manifest header
            # Using -I to fetch headers only, -s silent, -f fail fast on errors.
            curl -Isf "${REGISTRY_URL}" > /dev/null

            if [ $? -eq 0 ]; then
              echo "✅ Image found! Continuing to next steps."
              exit 0
            else
              echo "❌ Image not found (likely 404 error) on attempt $i."
              if [ $i -lt ${MAX_ATTEMPTS} ]; then
                echo "Sleeping for 5 minutes before next attempt..."
                sleep 2m
              else
                echo "Maximum attempts reached. Image not found."
                exit 1
              fi
            fi
          done

      - name: Install MCP Publisher
        run: |
          curl -L "https://github.com/modelcontextprotocol/registry/releases/latest/download/mcp-publisher_$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/').tar.gz" | tar xz mcp-publisher

      - name: Login to MCP Registry
        run: ./mcp-publisher login github-oidc

      - name: Publish to MCP Registry
        run: ./mcp-publisher publish