Commits on Dec 16, 2021

1. options: disable ignore pragma …

   - Add new configuration option allowing to disable inline ignore pragmas
   - Add new rule DL1001 to allow warning on use of an inline ignore pragma
   
   Inline ignore pragmas `# hadolint ignore=DLxxxx` can cause trouble in
   organizations when it is not desirable that individual developers
   circumvent centralized CI checks. This configuration options allows
   (e.g. in such a CI pipeline) to just ignore the pragma and apply all
   rules as usual. The option can be enabled via command line
   `--disable-ignore-pragma`, environment variable
   `HADOLINT_DISABLE_IGNORE_PRAGMA=1`, or config file
   ```yaml
   disable-ignore-pragma=true
   ```
   
   Just to prevent any confusion about the ignored pragma, the rule DL1001
   can be used to fail the linting process regardless of how the dockerfile
   fares, if desired. By default DL1001 is ignored but can be enabled by
   setting its severity to the desired level (e.g. via command line option
   `--warning=DL1001`).
   
   Changes in the test suite:
   
   - Add tests for `disable-ignore-pragma` options
   - Add tests for rule DL1001
   - Remove pointless configuration test for content of default
     configuration
   - Change configuration tests to a more compact syntax relying on the
     default instance
   
   By changing the manual construction of configuration values to utilize
   the default instance, future changes to the configuration do not
   necessitate many error prone changes to the test suite. This imporves
   reliability and ease of use of the configuration test suite.
   
   fixes: hadolint#747

   

   m-ildefons committed Dec 16, 2021
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