我不知道如何在Github Actions中运行已缓存的Docker镜像。
我按照关于发布Docker镜像的教程实现了一个任务，该任务会缓存、构建和推送Docker镜像到DockerHub。
我需要构建、缓存和运行镜像，镜像发布是可选的。
我的目标是加速CI工作流程。
这是Github Actions工作流程：
name: CI
# Controls when the action will run.
on:
# Triggers the workflow on push or pull request events but only for the master branch
push:
branches: [ master ]
pull_request:
branches: [ master ]
# Allows you to run this workflow manually from the Actions tab
workflow_dispatch:
# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
# This workflow contains a single job called "build"
build:
# The type of runner that the job will run on
runs-on: ubuntu-latest
# Steps represent a sequence of tasks that will be executed as part of the job
steps:
# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
- name: Check Out Repo
uses: actions/checkout@v2
with:
fetch-depth: 0
- name: Set up Docker Buildx
id: buildx
uses: docker/setup-buildx-action@v1
- name: Cache Docker layers
uses: actions/cache@v2
with:
path: /tmp/.buildx-cache
key: ${{ runner.os }}-buildx-${{ github.sha }}
restore-keys: |
${{ runner.os }}-buildx-
- name: Login to Docker Hub
uses: docker/login-action@v1
with:
username: ${{ secrets.DOCKER_HUB_USERNAME }}
password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
- name: Build and push
id: docker_build
uses: docker/build-push-action@v2
with:
context: ./
file: ./Dockerfile
builder: ${{ steps.buildx.outputs.name }}
push: true
tags: ivan123123/c_matrix_library:latest
cache-from: type=local,src=/tmp/.buildx-cache
cache-to: type=local,dest=/tmp/.buildx-cache
#- name: Run Docker container
# run: ???
# Upload gcovr code coverage report
- name: Upload GCC Code Coverage Report
uses: actions/upload-artifact@v2
with:
name: coveragereport
path: ./builddir/meson-logs/coveragereport/
- name: Upload code coverage reports to codecov.io page
run: bash <(curl -s https://codecov.io/bash)
编辑：
我没有找到运行缓存的Docker镜像的解决方案，但是我已经成功地使用docker/setup-buildx-action@v1操作每次运行CI工作流时构建缓存镜像。由于镜像被缓存，我们不需要下载每个Docker镜像依赖项，因此将时间从原来的3分钟节省到仅40秒。
以下是Github Actions工作流程：
name: CI
on: [push, pull_request]
jobs:
build:
runs-on: ubuntu-latest
steps:
- name: Check Out Repo
uses: actions/checkout@v2
with:
fetch-depth: 0
- name: Set up Docker Buildx
id: buildx
uses: docker/setup-buildx-action@v1
- name: Cache register
uses: actions/cache@v2
with:
path: /tmp/.buildx-cache
key: ${{ runner.os }}-buildx-${{ hashFiles('**/Dockerfile') }}
- name: Build Docker image
uses: docker/build-push-action@v2
with:
context: ./
file: ./Dockerfile
builder: ${{ steps.buildx.outputs.name }}
load: true
tags: c_matrix_library:latest
cache-from: type=local,src=/tmp/.buildx-cache
cache-to: type=local,dest=/tmp/.buildx-cache
- name: Run Docker container
run: docker run -v "$(pwd):/app" c_matrix_library:latest
docker run ivan123123/c_matrix_library命令会运行缓存的镜像还是从 Dockerhub 拉取镜像？我的目标是加速 CI 工作流程。 - Ivan Vnucec