Share built image between jobs with GitHub Actions
As each job is isolated in its own runner, you can't use your built image between jobs, except if you're using self-hosted runners or Docker Build Cloud. However, you can pass data between jobs in a workflow using the actions/upload-artifact and actions/download-artifact actions:
[!NOTE]
This workflow supports only single-platform images because the Docker exporter doesn't support manifest lists. For multi-platform images, push the image to a registry. If a later job rebuilds the image before pushing it, configure a shared cache backend to reuse the earlier build results. See also Multi-platform image with GitHub Actions.
name: ci
on:
push:
jobs:
build:
runs-on: ubuntu-latest
steps:
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@{{% param "setup_buildx_action_version" %}}
- name: Build and export
uses: docker/build-push-action@{{% param "build_push_action_version" %}}
with:
tags: myimage:latest
outputs: type=docker,dest=${{ runner.temp }}/myimage.tar
- name: Upload artifact
uses: actions/upload-artifact@v4
with:
name: myimage
path: ${{ runner.temp }}/myimage.tar
use:
runs-on: ubuntu-latest
needs: build
steps:
- name: Download artifact
uses: actions/download-artifact@v4
with:
name: myimage
path: ${{ runner.temp }}
- name: Load image
run: |
docker load --input ${{ runner.temp }}/myimage.tar
docker image ls -a