my_release_action.yaml

name: Publish package to the Maven Central Repository
on:
  release:
    types: [created]
jobs:
  publish:
    runs-on: ubuntu-latest
    steps:
      - name: Install gpg secret key
        run: |
          cat <(echo -e "${{ secrets.OSSRH_GPG_SECRET_KEY }}") | gpg --batch --import
      - name: Checkout
        uses: actions/checkout@v2
      - name: Set up Maven Central Repository
        uses: actions/setup-java@v2
        with:
          java-version: "11"
          distribution: "adopt"
          server-id: ossrh
          server-username: MAVEN_USERNAME
          server-password: MAVEN_PASSWORD
      - name: Publish package
        run: mvn --batch-mode -Dgpg.passphrase=${{ secrets.OSSRH_GPG_SECRET_KEY_PASSWORD }} deploy -Pdeploy
        env:
          MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
          MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}