API

FROM aliases must be unique

Docs > コード分析 > Static Analysis Rules > FROM aliases must be unique

このページは日本語には対応しておりません。随時翻訳に取り組んでいます。
翻訳に関してご質問やご意見ございましたら、お気軽にご連絡ください。

Metadata

ID: docker-best-practices/alias-must-be-unique

Language: Docker

Severity: Warning

Category: Error Prone

Description

When using multiple images in a Dockerfile, aliases must be unique.

Non-Compliant Code Examples

FROM awesomeimage:version as build
RUN stuff
FROM otherawesomeimage:version1 as foobar
RUN plop
FROM otherawesomeimage:version2 as build
RUN more_stuff

Compliant Code Examples

FROM awesomeimage:version as build
RUN stuff
FROM otherawesomeimage:version as another-alias
RUN more_stuff

How to use this rule

1
2
rulesets:
  - docker-best-practices     # Rules to enforce Docker best practices.

Create a static-analysis.datadog.yml with the content above at the root of your repository
Use our free IDE Plugins or add Code Analysis scans to your CI pipelines
Get feedback on your code

For more information, please read the Code Analysis documentation

VS Code Extension

Identify code vulnerabilities directly in your
VS Code editor

JetBrains Plugin

Identify code vulnerabilities directly in
JetBrains products