Retain and expose helm template for argocd applications

[jsoref]

Summary

helm template when run will print out the results of templating the NOTES.txt file which can have valuable information.

Motivation

The bitnami/postgresql-ha helm chart NOTES.txt includes commands for connecting / getting the password, but since we used argocd to deploy it, I didn't get to see the results.

Proposal

Expose this either on the Summary tab or in a new tab of the Application view

[jessesuen]

How does helm template produce the output of notes since it's only supposed to produce apply-able YAML? As comments?

[jsoref]

Sorry, it might be helm get notes -- I really haven't figured this stuff out, but it seems important.

[jsoref]

In addition to wanting NOTES.txt, we also want the general helm template output (and the command that was run to generate it -- especially for when it fails). Currently, we have to search through logs for the helm template command and then run it locally for debugging.

[jsoref]

For my reference,

helm status -n some-namespace generated-name

seemed to get me the notes content corresponding to a chart installed using

helm install -n some-namespace --generate-name .

[jsoref]

#4733 (comment) seems to be #5225

[timvol]

I would be also very glad if we can show the NOTES.txt on the summary. It would help to find important information like generated passwords and so on.

[abdennour]

NOTES.txt is my friend
While implementing helm charts for delivery teams, i intentionally don't provide 2 documentations. I kept always NOTES.txt as my single source of documentation truth.

I would like to present it in argocd app, and why not can't be retrieved thru CLI

[abdennour]

Any activities on this great feature ?
Do you want some ideas/acceptance criteria ?

Acceptance Criteria ( Proposal)

• [UI] adding button with icon whether notes icon, or doc icon or info icon.
• [UI] adding this button in the right place : it can be with the same group of "Sync", "Refresh".. or another place . I am not UX guy :)
• [Plugin] ArgoCD Plugin should not only support "init" & "generate" phases, but also "generate-docs" as 3rd phase.
• [CLI] argocd app docs my-app or argocd app notes my-app to be available .. default to empty string.
• Ideally, ability to parse it as MARKDOWN

[abdennour]

@jessesuen please check my proposed acceptance criteria above