Hadolint提升Dockerfile的质量和安全性 —— 筑梦之路

hadolint 在线版本：https://hadolint.github.io/hadolint/

bash 复制代码

FROM debian
RUN export node_version="0.10" \
&& apt-get update && apt-get -y install nodejs="$node_verion"
COPY package.json usr/src/app
RUN cd /usr/src/app \
&& npm install node-static

EXPOSE 80000
CMD ["npm", "start"]

bash 复制代码

nerdctl run --rm -i hadolint/hadolint < Dockerfile

-:1 DL3006 warning: Always tag the version of an image explicitly
-:2 DL3015 info: Avoid additional packages by specifying `--no-install-recommends`
-:2 DL3009 info: Delete the apt-get lists after installing something
-:2 SC2154 warning: node_verion is referenced but not assigned (did you mean 'node_version'?).
-:4 DL3045 warning: `COPY` to a relative destination without `WORKDIR` set.
-:5 DL3003 warning: Use WORKDIR to switch to a directory
-:5 DL3016 warning: Pin versions in npm. Instead of `npm install <package>` use `npm install <package>@<version>`
-:8 DL3011 error: Valid UNIX ports range from 0 to 65535

指定忽略的规则

如何你想忽略某些规则，在项目目录下创建hadolint.yaml文件，并指定要忽略的规则

bash 复制代码

ignored:
  - DL3011

运行Hadolint时指定配置文件

bash 复制代码

nerdctl run --rm -i -v /root/hadolint-demo/hadolint.yaml:/.config/hadolint.yaml hadolint/hadolint < Dockerfile

bash 复制代码

-:1 DL3006 warning: Always tag the version of an image explicitly
-:2 SC2154 warning: node_verion is referenced but not assigned (did you mean 'node_version'?).
-:2 DL3009 info: Delete the apt-get lists after installing something
-:2 DL3015 info: Avoid additional packages by specifying `--no-install-recommends`
-:4 DL3045 warning: `COPY` to a relative destination without `WORKDIR` set.
-:5 DL3003 warning: Use WORKDIR to switch to a directory
-:5 DL3016 warning: Pin versions in npm. Instead of `npm install <package>` use `npm install <package>@<version>`

为了确保Dockerfiles的质量和安全性，将Hadolint集成到开发工作流程中是一个明智之举。这样可以在代码编写、提交前以及持续集成(CI)过程中自动检测潜在问题。以下是一些常见的集成方式：

代码审查平台集成

https://github.com/hadolint/hadolint/blob/master/docs/INTEGRATION.md#code-review

持续集成

https://github.com/hadolint/hadolint/blob/master/docs/INTEGRATION.md#continuous-integration

编辑器集成

https://github.com/hadolint/hadolint/blob/master/docs/INTEGRATION.md#editors

版本控制集成

https://github.com/hadolint/hadolint/blob/master/docs/INTEGRATION.md#version-control