feat: Add Env Secrets in Server API

[jonas-martinez]

About this PR

This PR enables the server to generate secrets on Kubernetes via the API, allowing OpenFaas to link these secrets when setting up an environment. This approach lets you utilize secrets in your application without embedding them directly into the Docker image.

Additionally, it introduces a new environment variable:

KUBERNETES_APPS_NAMESPACE:  A string representing the namespace in Kubernetes where the apps are located. The environment secrets will be created in this namespace.

Technical highlight/advice

How to test my changes

Checklist

• I didn't over-scope my PR
• My PR title matches the commit convention
• I did not include breaking changes
• I made my own code-review before requesting one

I included unit tests that cover my changes

• 👍 yes
• 🙅 no, because they aren't needed
• 🙋 no, because I need help

I added/updated the documentation about my changes

• 📜 README.md
• 📕 docs/*.md
• 📓 docs.lenra.io
• 🙅 no documentation needed

[shiipou]

I still have an issue with the update
And the delete show an error but work and delete the key.

I have to find out why.

[jonas-martinez]

Some refactoring must be done because there is functions definitions that have a quite high complexity as per the results of mix credo --strict.

We should make some functions easier to read and maintain.

Please look at mix credo --strict command for more information.

[jonas-martinez]

You changed this case but it causes an error when trying to deploy an application.

Here are the logs :

11:10:37.446 request_id=F7juFiPvtMtTt9AAAprh [info] POST /api/apps/389/builds
11:10:37.582 request_id=F7juFiPvtMtTt9AAAprh [info] Sent 500 in 135ms
11:10:37.583 [error] #PID<0.24822.0> running LenraWeb.Endpoint (connection #PID<0.24819.0>, stream id 3) terminated
Server: api.staging.lenra.io:80 (http)
Request: POST /api/apps/389/builds
** (exit) an exception was raised:
    ** (CaseClauseError) no case clause matching: {:ok, %{APP_REPOSITORY: "https://github.com/lenra-io/template-bun-js.git", CALLBACK_URL: "http://lenra-server.lenra.svc.cluster.local:4000/runner/builds/915?secret=**********", IMAGE_NAME: "registry.gitlab.com/lenra/platform/lenra-ci/staging/dd14cd88-07d9-4711-9d4c-1a1d9d02b8b4:2", REPOSITORY_BRANCH: "secret"}}
        (lenra 0.1.0) lib/lenra/kubernetes/api_services.ex:56: Lenra.Kubernetes.ApiServices.create_pipeline/6
        (lenra 0.1.0) lib/lenra/apps.ex:266: Lenra.Apps.trigger_pipeline/3
        (lenra 0.1.0) lib/lenra/apps.ex:240: Lenra.Apps.create_build_and_deploy/3
        (lenra_web 0.1.0) lib/lenra_web/controllers/build_controller.ex:23: LenraWeb.BuildsController.create/2
        (lenra_web 0.1.0) lib/lenra_web/controllers/build_controller.ex:1: LenraWeb.BuildsController.action/2
        (lenra_web 0.1.0) lib/lenra_web/controllers/build_controller.ex:1: LenraWeb.BuildsController.phoenix_controller_pipeline/2
        (phoenix 1.6.16) lib/phoenix/router.ex:354: Phoenix.Router.__call__/2
        (lenra_web 0.1.0) lib/lenra_web/endpoint.ex:1: LenraWeb.Endpoint.plug_builder_call/2

[jonas-martinez]

@shiipou I'm tagging you because I can't set this comment as blocking for the PR as I am the creator.

[jonas-martinez]

@shiipou I don't know why but when using this branch, the server won't open the websocket to the app.

I tried to find the origin of the problem but there is no error on the server.

[shiipou]

@shiipou I don't know why but when using this branch, the server won't open the websocket to the app.

I tried to find the origin of the problem but there is no error on the server.

@jonas-martinez I'll check this.