Add a watcher for system input files

[nluaces]

Implements #2333

Changes:

• The namespace controller has an additional watcher for custom resources created in the designated directories.
• This feature is enabled by default ("auto"). To disable it, export the environment variable SKUPPER_SYSTEM_RELOAD_TYPE to "manual"
• CLI change: the command skupper system install needs to pass said env. variable to the system-controller pod.

Additional information:

• These changes only apply to podman and docker platforms and they can be tested by running:

export SKUPPER_SYSTEM_CONTROLLER_IMAGE=quay.io/nluaces/system-controller:latest

[fgiorgetti]

It would be nice to include a message in the startup banner of the system controller, displaying the status of the autoreload definition.

Another thing I am missing here is the fact that if you delete a Site and/or all resources from a given namespace, the Teardown is not being executed.

[fgiorgetti]

It is working great now.

One thing that is still missing is a log message indicating whether reload type is auto or manual as part of the startup banner.

[fgiorgetti]

I believe that the old value is still appropriate.

[nluaces]

I have double checked this using docker as platform and leaving unix:///run/docker.sock:

2026/02/09 16:15:26 ERROR Failed to bootstrap: failed to render site state: failed to create container client: Container engine is not available on provided endpoint - stat /run/docker.sock: no such file or directory component=input.resource.handler namespace=default

I think the problem is similar to podman platform, regarding where the container endpoint is mapped to the socket.

[fgiorgetti]

I believe that /var/run should work, as it is supposed to be just a lihk to /run, but I am wondering when did it change. Which version of docker do you have, Noe?
Anyway, if we want to change this, then there are several other locations in the repo that must be updated as well. If something has changed recently, then better changing it everywhere.

[nluaces]

Docker version 29.2.1, build a5c7197

[nluaces]

Anyway, if we want to change this, then there are several other locations in the repo that must be updated as well. If something has changed recently, then better changing it everywhere.

I agree. Should be changed everywhere as part of this pull request? I can also do it as part of another issue.

[fgiorgetti]

You can do it here, at least all references will be using /var/run/docker.sock.

[nluaces]

@fgiorgetti let me know if these commits work for you:
867d6ac
a90b119

I haven't done these changes in the implementations of install/uninstall commands, as they are not meant to be executed inside the container (same goes for bootstrap.sh and system_controller.sh).

[nluaces]

One thing that is still missing is a log message indicating whether reload type is auto or manual as part of the startup banner.

sorry! fixed now.