创建自定义Docker环境

Question

我喜欢Docker环境工具，但我也希望能够在用户使用Docker环境工具克隆存储库时预装一些工具。

我在存储库中有一个带有.devcontainer的Dockerfile文件夹

# [Choice] Alpine version: 3.13, 3.12, 3.11, 3.10
ARG VARIANT="3.13"
FROM mcr.microsoft.com/vscode/devcontainers/base:0-alpine-${VARIANT}

# Install Terraform CLI

# Install GCloud SDK

和一个devcontainer.json文件：

{
    "name": "Alpine",
    "build": {
        "dockerfile": "Dockerfile",
        // Update 'VARIANT' to pick an Alpine version: 3.10, 3.11, 3.12, 3.13
        "args": { "VARIANT": "3.13" }
    },
    
    // Set *default* container specific settings.json values on container create. 
    "settings": {},

    // Add the IDs of extensions you want installed when the container is created.
    // Note that some extensions may not work in Alpine Linux. See https://aka.ms/vscode-remote/linux.
    "extensions": [],

    // Use 'forwardPorts' to make a list of ports inside the container available locally.
    // "forwardPorts": [],

    // Use 'postCreateCommand' to run commands after the container is created.
    // "postCreateCommand": "uname -a",

    // Uncomment when using a ptrace-based debugger like C++, Go, and Rust
    // "runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined" ],

    // Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
    "remoteUser": "vscode"
}

我尝试过将curl和安装命令包括在Dockerfile中，但是这些命令似乎不起作用。澄清一下，一旦容器被构建，我似乎无法访问CLI工具。terraform --version说没有找到地形。

对接器作为运行在容器中的VSCode窗口启动，如果这有区别的话，我将尝试使用来自VSCode终端的CLI工具。

Answer 1

编辑：因此问题是，从Docker仪表板创建一个环境不会读取您的.devcontainer文件夹和文件，它会创建一个基本库存容器。您需要克隆在VSCode中打开的存储库，然后是Reopen in Container，它将构建您的环境。

我换到Ubuntu作为基本映像，而不是从Docker仪表板创建dev环境，而是在VSCode中本地打开项目文件夹，并选择“在容器中重新打开”。那时，它似乎安装了所有的东西，我现在有了CLI工具。

下面的安装命令来自每个提供程序的正式文档。我将重新测试如何通过Docker仪表板将存储库拉下来，以查看它是否有效。

# [Choice] Ubuntu version: bionic, focal
ARG VARIANT="focal"
FROM mcr.microsoft.com/vscode/devcontainers/base:0-${VARIANT}

# Installs Terragrunt + Terraform
ARG TERRAGRUNT_PATH=/bin/terragrunt
ARG TERRAGRUNT_VERSION=0.31.1
RUN wget https://github.com/gruntwork-io/terragrunt/releases/download/v${TERRAGRUNT_VERSION}/terragrunt_linux_amd64 -O ${TERRAGRUNT_PATH} \
  && chmod 755 ${TERRAGRUNT_PATH}

# Installs GCloud SDK
RUN echo "deb [signed-by=/usr/share/keyrings/cloud.google.gpg] http://packages.cloud.google.com/apt cloud-sdk main" | tee -a /etc/apt/sources.list.d/google-cloud-sdk.list && curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key --keyring /usr/share/keyrings/cloud.google.gpg  add - && apt-get update -y && apt-get install google-cloud-sdk -y