试图向GHCR发布Docker映像时发生Buildx授权错误

Question

我得到了一个错误：

error: failed to solve: error writing layer blob: server message: insufficient_scope: authorization failed

在此GitHub操作完成构建Docker图像之后：

# https://docs.docker.com/ci-cd/github-actions/
name: Publish Docker Image

on:
  workflow_dispatch:
  push:
    branches:
      - master
    paths:
      - "Dockerfile"
  schedule:
    - cron: "0 6 * * */3"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repo
        uses: actions/checkout@v3
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v1
      - name: Login to Docker Hub
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ github.token }}
      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: ./
          file: ./Dockerfile
          builder: ${{ steps.buildx.outputs.name }}
          push: true
          tags: ghcr.io/t145/black-mirror:latest
          cache-from: type=registry,ref=t145/black-mirror:buildcache
          cache-to: type=registry,ref=t145/black-mirror:buildcache,mode=max

它是按照文档顶部链接的指南进行配置的。为什么这里会出现此错误？

Answer 1

尝试更新对ghcr.io/t 145/黑镜的cache-from和cache-to缓存引用。当您省略注册表(ghcr.io)时，我相信它默认为DockerHub。