Make the profile configurable

Signed-off-by: Xianglin Gao <xlgao@zju.edu.cn>

cmd/server/config.go

@@ -15,6 +15,7 @@ const (
 	conmonPath          = "/usr/libexec/ocid/conmon"
 	pausePath           = "/usr/libexec/ocid/pause"
 	seccompProfilePath  = "/etc/ocid/seccomp.json"
+	apparmorProfileName = "crio-default"
 )
 
 var commentedConfigTemplate = template.Must(template.New("config").Parse(`
@@ -64,6 +65,10 @@ selinux = {{ .SELinux }}
 # default for the runtime.
 seccomp_profile = "{{ .SeccompProfile }}"
 
+# apparmor_profile is the apparmor profile name which is used as the
+# default for the runtime.
+apparmor_profile = "{{ .ApparmorProfile }}"
+
 # The "ocid.image" table contains settings pertaining to the
 # management of OCI images.
 [ocid.image]
@@ -96,6 +101,7 @@ func DefaultConfig() *server.Config {
 			},
 			SELinux:         selinux.SelinuxEnabled(),
 			SeccompProfile:  seccompProfilePath,
+			ApparmorProfile: apparmorProfileName,
 		},
 		ImageConfig: server.ImageConfig{
 			Pause:    pausePath,

cmd/server/main.go

@@ -59,6 +59,9 @@ func mergeConfig(config *server.Config, ctx *cli.Context) error {
 	if ctx.GlobalIsSet("seccomp-profile") {
 		config.SeccompProfile = ctx.GlobalString("seccomp-profile")
 	}
+	if ctx.GlobalIsSet("apparmor-profile") {
+		config.ApparmorProfile = ctx.GlobalString("apparmor-profile")
+	}
 	return nil
 }
 
@@ -135,6 +138,10 @@ func main() {
 			Name:  "seccomp-profile",
 			Usage: "default seccomp profile path",
 		},
+		cli.StringFlag{
+			Name:  "apparmor-profile",
+			Usage: "default apparmor profile name (default: \"crio-default\")",
+		},
 		cli.BoolFlag{
 			Name:  "selinux",
 			Usage: "enable selinux support",

server/apparmor/apparmor.go

@@ -57,24 +57,6 @@ func IsEnabled() bool {
 	return apparmor.IsEnabled()
 }
 
-// GetAppArmorProfileName gets the profile name for the given container.
-func GetAppArmorProfileName(annotations map[string]string, ctrName string) string {
-	profile := GetProfileNameFromPodAnnotations(annotations, ctrName)
-
-	if profile == "" {
-		return ""
-	}
-
-	if profile == ProfileRuntimeDefault {
-		// If the value is runtime/default, then return default profile.
-		logrus.Infof("get default profile name")
-		return defaultApparmorProfile
-	}
-
-	profileName := strings.TrimPrefix(profile, ProfileNamePrefix)
-	return profileName
-}
-
 // GetProfileNameFromPodAnnotations gets the name of the profile to use with container from
 // pod annotations
 func GetProfileNameFromPodAnnotations(annotations map[string]string, containerName string) string {

server/config.go

@@ -68,6 +68,10 @@ type RuntimeConfig struct {
 	// SeccompProfile is the seccomp json profile path which is used as the
 	// default for the runtime.
 	SeccompProfile string `toml:"seccomp_profile"`
+
+	// ApparmorProfile is the apparmor profile name which is used as the
+	// default for the runtime.
+	ApparmorProfile string `toml:"apparmor_profile"`
 }
 
 // ImageConfig represents the "ocid.image" TOML config table.

server/container_create.go

@@ -186,7 +186,7 @@ func (s *Server) createSandboxContainer(containerID string, containerName string
 
 	// set this container's apparmor profile if it is set by sandbox
 	if s.appArmorEnabled {
-		appArmorProfileName := apparmor.GetAppArmorProfileName(sb.annotations, metadata.GetName())
+		appArmorProfileName := s.getAppArmorProfileName(sb.annotations, metadata.GetName())
 		if appArmorProfileName != "" {
 			specgen.SetProcessApparmorProfile(appArmorProfileName)
 		}
@@ -383,3 +383,20 @@ func (s *Server) generateContainerIDandName(podName string, name string, attempt
 	}
 	return id, name, err
 }
+
+// getAppArmorProfileName gets the profile name for the given container.
+func (s *Server) getAppArmorProfileName(annotations map[string]string, ctrName string) string {
+	profile := apparmor.GetProfileNameFromPodAnnotations(annotations, ctrName)
+
+	if profile == "" {
+		return ""
+	}
+
+	if profile == apparmor.ProfileRuntimeDefault {
+		// If the value is runtime/default, then return default profile.
+		return s.appArmorProfile
+	}
+
+	profileName := strings.TrimPrefix(profile, apparmor.ProfileNamePrefix)
+	return profileName
+}

server/server.go

@@ -42,6 +42,7 @@ type Server struct {
 	seccompProfile seccomp.Seccomp
 
 	appArmorEnabled bool
+	appArmorProfile string
 }
 
 func (s *Server) loadContainer(id string) error {
@@ -300,6 +301,7 @@ func New(config *Config) (*Server, error) {
 	if s.appArmorEnabled {
 		apparmor.InstallDefaultAppArmorProfile()
 	}
+	s.appArmorProfile = config.ApparmorProfile
 
 	s.podIDIndex = truncindex.NewTruncIndex([]string{})
 	s.podNameIndex = registrar.NewRegistrar()