Invalid Argument for HEALTHCHECK

[jokay]

When using this HEALTHCHECK in a Dockerfile:

HEALTHCHECK --interval=30s --timeout=10s --start-period=15s --retries=5 \
  CMD wget --spider http://localhost/health || exit 1

I get this linting error from super-linter / dockerfilelint 1.8.0:

File:   /builds/dev/app.test/src/app.test.server/Dockerfile
Issues: 1
Line 60: HEALTHCHECK --interval=30s --timeout=10s --start-period=15s --retries=5 \
Issue  Category      Title                 Description
    1  Possible Bug  Invalid Argument      The arguments to this command are invalid
                     Format]

Any idea on how to fix this?

[jokay]

Related issue #28 & pull request #117.

[jokay]

@egoexpress any idea? 😉

[jokay]

When removing the option --start-period=15s from the Dockerfile, there won't be any linting error anymore.

[egoexpress]

When removing the option --start-period=15s from the Dockerfile, there won't be any linting error anymore.

Mmmh, ok, seems to be a bug. I'll have a look into it. '--start-period' is a valid option for HEALTHCHECK and is already included in the linting function, so it should work.

[egoexpress]

Found the issue. The regular expression checking the option names doesn't count for the dash in the '--start-period' option. PR #167 fixes this.

[jokay]

Thx for the fix.

[lvjp]

I missed up with issue number... It was #156....