[CLI] output manifests instead of applying them directly

[adnanrahic]

Is your feature request related to a problem? Please describe.
From what I saw, tracetest server install does not have the option to output manifests instead of applying them directly, hence I cannot store them in Git and apply them with ArgoCD or Flux. Alternatively, it would be OK to use a Helm chart if there is one. https://docs.tracetest.io/deployment/kubernetes does not mention any alternatives to tracetest server install.
From Discord.

Describe the solution you'd like
Have a dry run command option. Or something better?

Describe alternatives you've considered
Use Helm charts from GitHub, here: https://github.com/kubeshop/helm-charts/tree/develop/charts/tracetest

helm repo add kubeshop https://kubeshop.github.io/helm-charts
helm repo update
helm install tracetest kubeshop/tracetest

Additional context
Question opened by Viktor Farcic in Discord, here.

[adnanrahic]

I think we have 2 options:

1. Add detailed docs about the Helm charts here: https://docs.tracetest.io/deployment/kubernetes — they should explain how to use Helm to generate manifest files, do dry runs, and deploy the chart to a running cluster.
2. Add a feature in the CLI to generate files into a directory instead of applying them to a cluster right away. — Then add these instructions to https://docs.tracetest.io/deployment/kubernetes

What do you think?

[danielbdias]

I believe that we can follow the first option.

When a user wants to use the helm chart directly, it is because they have a specific need on their infra (like for instance, configuring Flux to read helm charts and auto-update a deployment), and it usually is difficult to map on our CLI.

Does it make sense? What do you think, @mathnogueira and @schoren?

[adnanrahic]

I think we should also re-write this page https://docs.tracetest.io/getting-started/detailed-installation to include both using the CLI and the Helm charts. This page can be shorter and more concise than the full explanation on this page https://docs.tracetest.io/deployment/kubernetes.

WDYT @danielbdias ?

[adnanrahic]

Update: Helm docs were added in #2562 .
https://docs.tracetest.io/deployment/kubernetes

We're still considering updating the https://docs.tracetest.io/getting-started/detailed-installation page as well.

[adnanrahic]

Updates on https://docs.tracetest.io/getting-started/detailed-installation are done #2567

[adnanrahic]

To summarize, we've updated two pages with more detailed instructions and added Helm instructions.

• https://docs.tracetest.io/getting-started/detailed-installation
• https://docs.tracetest.io/deployment/kubernetes