The subject of yaml file comment encompasses a wide range of important elements. How do you do block comments in YAML? If you're in Eclipse with the YEdit plugin, the standard Eclipse block-comment-toggler of ctrl-/ will toggle block comments in yaml files. How do I add comments to .gitlab-ci.yaml file? In this context, i suspect that there is a pre-processor for the CI-pipeline which supports a comment syntax.
What is the correct way to comment out lines in a .gitlab-ci.yml file? Searching for answer I found this Add comments to .gitlab-ci.yml, which was merged two years ago. Now I just need to find the page that says how to do it! Save/dump a YAML file with comments in PyYAML - Stack Overflow. To build a yaml file with comments, you have to create an event stream that includes comment events.
Equally important, comments are currently only allowed before sequence items and mapping keys. This only currently works for python3, I haven't ported it to the python2 version of the library, but could easily do so on request. How do I add a comment in GitHub action YML file?. In this context, add a pound sign (#) and the rest of the line is commented, which is the standard YAML way to add a comment. Do note that a whitespace is required between the # and the comment.

Usually it is a good practice for readability to just put it at the beginning of the line and have the comment on its own line. Similarly, in YAML how can I comment a part of a line? YAML only has comments that are in effect until the end of the line. So unless there is some other commenting mechanism implemented by the program that interprets the YAML data (unlikely), the best thing to do is copy the whole line, comment one version out, and adjust the other: Adding comments to YAML produced with PyYaml - Stack Overflow.
The enhanced version for PyYAML that I developed (ruamel.yaml) can read in YAML with comments, preserve the comments and write comments when dumping. Additionally, if you read your desired output, the resulting data will look (and act) like a dict containing a dict, but in reality there is more complex data structure that can handle the comments. Building on this, how can I add a comment to a YAML file in Python. 11 Within your with block, you can write anything you want to the file.

Since you just need a comment at the top, add a call to f.write() before you call ruamel: It's important to note that, how to add a comment to a helm chart template? There is a section in the Helm documentation on Comments (YAML Comments vs. Template Comments); type comments into the search box at the top left of https://docs.helm.sh/docs/.
Also see the Go library reference documentation for the text/template package. The Go text/template engine has its own comment syntax, {{/* comment here */}}. These may be multiline comments, and may be combined with ...


π Summary
Via this exploration, we've examined the multiple aspects of yaml file comment. These insights don't just inform, they also assist individuals to take informed action.
