Additional task, inject kernel logs into talosctl logs so it also gets written to /var/log:

Use kmsg reader like

talos/internal/app/machined/pkg/controllers/runtime/kmsg_log.go

Lines 80 to 89 in 3d997d7

    
           // initilalize kmsg reader early, so that we don't lose position on config changes 
        
           reader, err := kmsg.NewReader(kmsg.Follow()) 
        
           if err != nil { 
        
           	return fmt.Errorf("error reading kernel messages: %w", err) 
        
           } 
        
           defer reader.Close() //nolint:errcheck 
        
           kmsgCh := reader.Scan(ctx)

Grab e.g. kernel service log via

talos/internal/app/machined/pkg/runtime/logging.go

Lines 17 to 20 in 3d997d7

    
           type LoggingManager interface { 
        
           	// ServiceLog privides a log handler for a given service (that may not exist). 
        
           	ServiceLog(service string) LogHandler

and copy from kmsg into this log formatting on the way.

This will result in /var/log/kernel.log being written and also talosctl logs kernel working.

	// initilalize kmsg reader early, so that we don't lose position on config changes
	reader, err := kmsg.NewReader(kmsg.Follow())
	if err != nil {
	return fmt.Errorf("error reading kernel messages: %w", err)
	}

	defer reader.Close() //nolint:errcheck

	kmsgCh := reader.Scan(ctx)

	type LoggingManager interface {
	// ServiceLog privides a log handler for a given service (that may not exist).
	ServiceLog(service string) LogHandler

Uh oh!

write Talos "service" logs to /var/log #11461

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