dockerfile.best-practice.avoid-latest-version.avoid-latest-version

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Images should be tagged with an explicit version to produce deterministic container images. The 'latest' tag may change the base container without warning.

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Defintion

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rules:
  - id: avoid-latest-version
    message: Images should be tagged with an explicit version to produce
      deterministic container images. The 'latest' tag may change the base
      container without warning.
    severity: WARNING
    languages:
      - dockerfile
    metadata:
      source-rule-url: https://github.com/hadolint/hadolint/wiki/DL3007
      references:
        - https://github.com/hadolint/hadolint/wiki/DL3007
      category: best-practice
      technology:
        - dockerfile
      license: Commons Clause License Condition v1.0[LGPL-2.1-only]
    pattern: FROM $FROM:latest

Examples

avoid-latest-version.dockerfile

# ruleid: avoid-latest-version
FROM debian:latest

# ruleid: avoid-latest-version
FROM myregistry.local/testing/test-image:latest

# ruleid: avoid-latest-version
FROM debian:latest as blah

# ruleid: avoid-latest-version
FROM myregistry.local/testing/test-image:latest as blah

# ok: avoid-latest-version
FROM debian:jessie

# ok: avoid-latest-version
FROM myregistry.local/testing/test-image:42ee222

# ok: avoid-latest-version
FROM debian:jessie as blah2

# ok: avoid-latest-version
FROM myregistry.local/testing/test-image:2a4af68 as blah2