build.yml

name: Build CMT Geth
on:
    workflow_dispatch:
    push:
        branches:
            - "master"
        tags:
            - 'v*'      
jobs:
    build:
        runs-on: ubuntu-latest
        steps:
          - name: Check out the repo
            uses: actions/checkout@v3
          - name: Login to GitHub Container Registry
            uses: docker/login-action@v1
            with:
                registry: ghcr.io
                username: ${{ github.actor }}
                password: ${{ secrets.GITHUB_TOKEN }}
          - name: Get latest tag
            uses: 'WyriHaximus/github-action-get-previous-tag@v1'
            id: get-latest-tag
            with:
              fallback: latest                   
          - name: Build the Docker Image
            run: |
                  docker build . --tag ghcr.io/cybermiles/travis-x:${{ steps.get-latest-tag.outputs.tag }}
                  docker push ghcr.io/cybermiles/travis-x:${{ steps.get-latest-tag.outputs.tag }}