utils/gen_rendered_policies_index.py: read compiled control files

[vojtapolasek]

Description:

• include the "policy" key in compiled control files
• the script for generating of HTML index for rendered policies now reads compiled control files

Rationale:

Control files in the "controls" directory can contain Jinja macros. If a script wants to parse our content with Jinja macros, it requires non-trivial steps to get this working.
The script gen_rendered_policies_index.py is very simple and it reads literarily one key (policy) from the control file. Therefore, it does not care about Jinja at all.
Therefore, it is now reading compiled contro files in the build//controls directory.

This problem was discovered in this PR which added Jinja statements into ANSSI file: #11663

Review Hints:

I think you can review the Github action which builds the web content and compare it with the one present at https://complianceascode.github.io/content-pages/

Or you can do following steps for master and the PR and compare results:

1. cd build
2. rm -r *
3. cmake ../
4. make -j8
5. make -j8 render-policies
6. cd ..
7. source .pyenv.sh
8. ./utils/gen_rendered_policies_index.py /tmp/sites
9. inspect /tmp/sites directory

[github-actions]

Start a new ephemeral environment with changes proposed in this pull request:

Fedora Environment

Oracle Linux 8 Environment

[github-actions]

🤖 A k8s content image for this PR is available at:
ghcr.io/complianceascode/k8scontent:11667
This image was built from commit: d7918d2

Click here to see how to deploy it

If you alread have Compliance Operator deployed:
utils/build_ds_container.py -i ghcr.io/complianceascode/k8scontent:11667

Otherwise deploy the content and operator together by checking out ComplianceAsCode/compliance-operator and:
CONTENT_IMAGE=ghcr.io/complianceascode/k8scontent:11667 make deploy-local

[codeclimate]

Code Climate has analyzed commit d7918d2 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 59.8% (0.0% change).

View more on Code Climate.

[Mab879]

I think this is fine for now.

This script could use some UX improvements in a the future, I will file an issue.