feat(tfctl): add --all flag to 'reconcile' command for bulk reconciliation

[cschindlbeck]

Adds --all to tfctl reconcile for bulk resource reconciliation

[artem-nefedov]

Looks fine to me, but I don't have permissions to approve in this repo

[alexandermarston]

Thank you for the contribution! It looks like we've got a few vulnerabilities which are blocking the pipeline - I'll get these cleared up and then review this.

[cschindlbeck]

@alexandermarston thanks a bunch, can you decide if we should include commit f2dfa70 or remove, that means, should the -A flag be included, this would be consistent with the other commands, i would revert it then

[alexandermarston]

If we are just trying to trigger a bulk reconciliation, could we consider doing something like this? (fyi, this is what we use internally at my org)

for i in $(kubectl get terraforms.infra.contrib.fluxcd.io -n my-namespace | awk '{print $1}'); do;
kubectl annotate --namespace my-namespace --field-manager=flux-client-side-apply --overwrite terraform $i reconcile.fluxcd.io/requestedAt="$(date +%s)"
done

I prefer this way as I don't have to wait for the Replan requested... for each resource.

What are your thoughts? Perhaps we can add this to the docs.

[artem-nefedov]

But it we already have tfctl reconcile, it should be usable for this purpose. It also adds reconcile.fluxcd.io/requestedAt annotation.
And you can call it in the loop too, but I think the point of this specific PR is to make reconcile flags similar to what suspend/resume have.

[cschindlbeck]

@alexandermarston
We could do that but it pushes that logic to the user side. Adding --all keeps the workflow inside tfctl while avoiding requiring custom scripting for a reasonable operation.

From my perspective, the goal of this PR was to make tfctl reconcile consistent with other commands like suspend/resume, which already support bulk operations via flags.

We can add your suggestion to the docs too in case of someone wants to skip the Reconcile requested. Or add another flag --skip-reconcile