Andrey Smirnov 860002c735

fix: don't reload control plane pods on cert SANs changes ...

Fixes #7159

The change looks big, but it's actually pretty simple inside: the static
pods had an annotation which tracks a version of the secrets which
forced control plane pods to reload on a change. At the same time
`kube-apiserver` can reload certificate inputs automatically from files
without restart.

So the inputs were split: the dynamic (for kube-apiserver) inputs don't
need to be reloaded, so its version is not tracked in static pod
annotation, so they don't cause a reload. The previous non-dynamic
resource still causes a reload, but it doesn't get updated when e.g.
node addresses change.

There might be many more refactoring done, the resource chain is a bit
of a mess there, but I wanted to keep number of changes minimal to keep
this backportable.

Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>

2023-05-05 16:59:09 +04:00

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