Document DS_ANALYZER_IMAGE, SAST_ANALYZER_IMAGE and CS_ANALYZER_IMAGE

Problem to solve

The secure templates make use of the following variables, however, none of them have been documented:

The purpose of this issue is to document these variables

Intended users

User experience goal

User's should find correct documentation for the given variable names

We decided to document these variables in the template itself instead of the user documentation.

Proposal

Document the DS_ANALYZER_IMAGE, SAST_ANALYZER_IMAGE, and CS_ANALYZER_IMAGE env variables.

Implementation plan

Document the following variables as comments in the given templates:

Variable Template
DS_ANALYZER_IMAGE Dependency-Scanning.gitlab-ci.yml
SAST_ANALYZER_IMAGE SAST.gitlab-ci.yml
CS_ANALYZER_IMAGE Container-Scanning.gitlab-ci.yml

Further details

See this discussion for more details

What does success look like, and how can we measure that?

The variables listed in the Proposal section are documented as comments in their respective template files.

What is the type of buyer?

GitLab Ultimate Enterprise Edition

Is this a cross-stage feature?

Yes, this affects Category:Container Scanning Category:SAST ~"Category:Dependency Scanning"

/cc @gonzoyumo @NicoleSchwartz @rdickenson @fcatteau

Edited by Olivier Gonzalez