Sharing Docker containers between jobs in a workflow

Is it possible to share Docker containers between jobs in a workflow? I tried building a container and setting load to true, but that does not make it available in the next jobb (tried running docker image ls, and the images I built did not appear

[crazy-max]

@torkelrogstad

I don’t know the exact purpose or mechanics of this file, but it looks like the tag information is included, but not picked up when I’m loading. Do you know how to fix this?

Switch to outputs: type=docker,dest=/tmp/image.tar output:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          file: ./Dockerfile
          tags: myimage:latest
          outputs: type=docker,dest=/tmp/myimage.tar
      -
        name: Upload artifact
        uses: actions/upload-artifact@v2
        with:
          name: myimage
          path: /tmp/myimage.tar

  use:
    runs-on: ubuntu-latest
    needs: build
    steps:
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Download artifact
        uses: actions/download-artifact@v2
        with:
          name: myimage
          path: /tmp
      -
        name: Load Docker image
        run: |
          docker load --input /tmp/myimage.tar
          docker image ls -a

[crazy-max]

@torkelrogstad

Docker containers between jobs in a workflow?

Each job is isolated in his own runner. That’s why you cannot see your image in another job. But you can pass data between jobs in a workflow. You can use the actions/upload-artifact and actions/download-artifact actions to do this.

Here is a quick example to upload an image as an artifact:

name: ci

on:
  push:
    branches: master

jobs:
  upload-artifact:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Build and export
        uses: docker/build-push-action@v2
        with:
          context: .
          file: ./Dockerfile
          tags: name/app:latest
          outputs: type=oci,dest=/tmp/image.tar
      -
        name: Upload artifact
        uses: actions/upload-artifact@v2
        with:
          name: app
          path: /tmp/image.tar