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2024.3

Unquoted port mappings

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Sanity
New
Last modified: 03 December 2024

Reports unquoted port mappings in Docker Compose files.

According to the Compose file specification, mapping ports in the HOST:CONTAINER format may lead to erroneous results when using a container port lower than 60, because YAML parses numbers in the format xx:yy as a base-60 value. For this reason, we recommend always explicitly specifying the port mappings as strings.

Examples:

After the quick-fix is applied: