apparmor: Add AppArmor info at start time

Signed-off-by: Paulo Gomes <pjbgf@linux.com>

internal/pkg/daemon/apparmorprofile/apparmorprofile.go

@@ -26,6 +26,8 @@ import (
 
 	"github.com/crossplane/crossplane-runtime/pkg/event"
 	"github.com/go-logr/logr"
+	aa "github.com/pjbgf/go-apparmor/pkg/apparmor"
+	"github.com/pjbgf/go-apparmor/pkg/hostop"
 	ctrl "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
@@ -271,3 +273,33 @@ func (r *Reconciler) handleDeletion(sp *v1alpha1.AppArmorProfile) error {
 	r.metrics.IncAppArmorProfileDelete()
 	return nil
 }
+
+func (r *Reconciler) logNodeInfo() {
+	r.log.Info("detecting apparmor support...")
+
+	mount := hostop.NewMountHostOp().WithLogger(r.log)
+	aa := aa.NewAppArmor().WithLogger(r.log)
+
+	err := mount.Do(func() error {
+		enabled, err := aa.Enabled()
+		r.log.Info(fmt.Sprintf("apparmor enabled: %s", ok(enabled, err)))
+
+		fsPath, err := aa.AppArmorFS()
+		r.log.Info(fmt.Sprintf("apparmor fs: %s (%v)", fsPath, err))
+
+		enforceable, err := aa.Enforceable()
+		r.log.Info(fmt.Sprintf("apparmor enforceable: %s", ok(enforceable, err)))
+
+		return nil
+	})
+	if err != nil {
+		r.log.Error(err, "mounting host")
+	}
+}
+
+func ok(ok bool, err error) string {
+	if ok {
+		return "OK"
+	}
+	return fmt.Sprintf("NOT OK (%v)", err)
+}

internal/pkg/daemon/apparmorprofile/setup.go

@@ -38,6 +38,8 @@ func (r *Reconciler) Setup(
 	r.metrics = met
 	r.manager = NewAppArmorProfileManager(r.log)
 
+	r.logNodeInfo()
+
 	// Register the regular reconciler to manage AppArmorProfiles
 	return ctrl.NewControllerManagedBy(mgr).
 		Named("apparmorprofile").