在 CircleCi 作业中恢复缓存时权限被拒绝

Question

每当我的工作运行时，他们总是需要大约 40 秒的时间来下载和安装 libreoffice。我要将它存储到缓存中并恢复缓存以在下一个工作中重用它。

      - restore_cache:
          key: cache-libre-6.3-b             # Restore libreoffice
      - run:
          name: install libreoffice 6.3
          command: |
            if [[ ! -d /opt/libreoffice6.3/ ]]; then
                # download & install the .deb
                mkdir -p /tmp/libreoffice
                l=download.tar.gz
                cd /tmp/libreoffice
                  wget -O $l https://download.documentfoundation.org/libreoffice/stable/6.3.3/deb/x86_64/LibreOffice_6.3.3_Linux_x86-64_deb.tar.gz
                  tar -xvf $l
                  d=`ls -td */ | head -n1`
                  cd $d/DEBS/
                  sudo dpkg -i *.deb
                cd -

                # install dependencies required when run :soffice binary  ref. https://github.com/microsoft/vscode/issues/13089
                sudo apt update
                sudo apt install -y libxinerama1 libgtk2.0-0 libxss-dev libgconf-2-4 libasound2

            fi
            # make :libreoffice softlink to libreoffice binary 6.3
            sudo ln -s /opt/libreoffice6.3/program/soffice /usr/bin/libreoffice
            sudo chmod -R 777 /opt/libreoffice6.3/
      - save_cache:
          key: cache-libre-6.3-b
          paths:
            # Save cache libreoffice
            - /opt/libreoffice6.3/
            - /home/circleci/cache-libre

当我再次重新运行作业时，我无法恢复缓存。我在下面拒绝了一些许可：

Found a cache from build 7593 at cache-libre-6.3-b
Size: 271 MB
Cached paths:
  * /opt/libreoffice6.3
  * /home/circleci/cache-libre

Downloading cache archive...
Validating cache...

Unarchiving cache...

Failed to unarchive cache

Error untarring cache: Error extracting tarball /tmp/cache785237819 : tar: opt/libreoffice6.3: Cannot mkdir: Permission denied tar: opt/libreoffice6.3: Cannot mkdir: Permission denied tar: opt/libreoffice6.3/CREDITS.fodt: Cannot open: No such file or directory tar: opt/libreoffice6.3: Cannot mkdir: Permission denied tar: opt/libreoffice6.3/LICENSE: Cannot open: No such file or directory tar: opt/libreoffice6.3: Cannot mkdir: Permission denied tar: opt/libreoffice6.3/LICENSE.html: Cannot open: No such file or directory tar: opt/libreoffice6.3: Cannot mkdir: Permission denied tar: opt/libreoffice6.3/NOTICE: Cannot open: No such file or directory tar: opt/libreoffice6.3: Cannot mkdir: Permission denied tar: opt/libreoffice6.3/help: Cannot mkdir: No such file or directory tar: opt/libreoffice6.3: Cannot mkdir: Permission denied tar: opt/libreoffice6.3/help/a11y-toggle.js: Cannot open: No such file or directory tar: opt/libreoffice6.3: Cannot mkdir: Permission denied tar: opt/libreoffice6.3/help/default.css: Cannot open: No such file or directory tar: opt/libreoffice6.3: Cannot mkdi: exit status 2

我该如何解决这个问题。

Answer 1

我最近也发生了这种情况。鉴于我有许多构建使用该密钥保存和恢复该缓存，否则它可能会间歇性出现，而且这不太可能是直接原因；但是，我会提到这一点，以防万一它对人们有所帮助。

我以前一直working_directory在尝试使用该命令persist-to-workspace，attach_workspace并认为这可能导致了问题。

可能导致错误的序列：

• 建个：

  1. 设置工作目录 working_directory: ~/tmp
  2. 使用键 X 保存缓存

• 构建 B：

  1. 默认工作目录（未使用working_directory命令）
  2. 尝试使用相同的键 X（但不同的工作目录）恢复缓存
  3. Error untarring cache: Error extracting tarball

修复它的解决方案只是更改缓存键。例如从v1前缀到v2. 这避免了尝试还原为工作目录创建的缓存，tmp以便尝试将其还原到不同的工作目录。它现在使用一个新鲜的。