[doc] Documentation on how to specify parameter for templating

[lb0o]

Hi, I submitted a PR regarding kubespan templating but realized that set a parameter would be sufficient.

Is there a way to make variable edition such as:
talm template -e <> -n <> --set-json machine.network.kubespan=true -t templates/controlplane.yaml -i > nodes/srvX.yaml ?

Alternatively, Is there more documentation planned for talm ?

I tried different options with no luck, thank you

[NickVolynkin]

Hi @lb0o! I'll check it out later today. Thanks for the PR!

[lb0o]

Hi @lb0o! I'll check it out later today. Thanks for the PR!

No worries I closed it, I missed some parts where the templating works upon editing the cozystack preset after talm init --preset cozystack template/_helpers but didn't worked upon go build of talm, idk
that is why I'm reverting to a simpler supported solution such as --set parameters but don't know how to use it properly for editing things such as machine.network.kubespan=true

[lb0o]

#72 add a little readme about an example of how use the set parameter flag with talm template.
However the readme doc is not directly mentioning talm template --set x=y but rather point to a little make script to uses this functionnality

talm template --set kubespan=false --offline -t templates/worker.yaml