fix: containerd log symlink

Kubelet creates symlinks from /var/log/containers/<pod>.log to the log file /var/log/pod/<pod-folder>/0.log
Log senders (like fluentd) usually watch the folder /var/log/containers/*.log
Kubelet needs to share containers folder.

Signed-off-by: Serge Logvinov <serge.logvinov@sinextra.dev>
Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>

internal/app/machined/pkg/runtime/v1alpha1/v1alpha1_sequencer_tasks.go

@@ -732,7 +732,7 @@ func SetupSharedFilesystems(seq runtime.Sequence, data interface{}) (runtime.Tas
 // SetupVarDirectory represents the SetupVarDirectory task.
 func SetupVarDirectory(seq runtime.Sequence, data interface{}) (runtime.TaskExecutionFunc, string) {
 	return func(ctx context.Context, logger *log.Logger, r runtime.Runtime) (err error) {
-		for _, p := range []string{"/var/log/pods", "/var/lib/kubelet", "/var/run/lock"} {
+		for _, p := range []string{"/var/log/containers", "/var/log/pods", "/var/lib/kubelet", "/var/run/lock"} {
 			if err = os.MkdirAll(p, 0o700); err != nil {
 				return err
 			}

internal/app/machined/pkg/system/services/kubelet.go

@@ -168,6 +168,7 @@ func (k *Kubelet) Runner(r runtime.Runtime) (runner.Runner, error) {
 		{Type: "bind", Destination: "/var/run", Source: "/run", Options: []string{"rbind", "rshared", "rw"}},
 		{Type: "bind", Destination: "/var/lib/containerd", Source: "/var/lib/containerd", Options: []string{"rbind", "rshared", "rw"}},
 		{Type: "bind", Destination: "/var/lib/kubelet", Source: "/var/lib/kubelet", Options: []string{"rbind", "rshared", "rw"}},
+		{Type: "bind", Destination: "/var/log/containers", Source: "/var/log/containers", Options: []string{"rbind", "rshared", "rw"}},
 		{Type: "bind", Destination: "/var/log/pods", Source: "/var/log/pods", Options: []string{"rbind", "rshared", "rw"}},
 	}