File 0005-bsc1073877-apparmor-clobber-docker-default-profile-o.patch of Package docker

From bf5cb37413b1415c0429d758a83bb0a7e592528e Mon Sep 17 00:00:00 2001
From: Aleksa Sarai <asarai@suse.de>
Date: Fri, 29 Jun 2018 17:59:30 +1000
Subject: [PATCH 5/6] bsc1073877: apparmor: clobber docker-default profile on
 start

In the process of making docker-default reloading far less expensive,
567ef8e7858c ("daemon: switch to 'ensure' workflow for AppArmor
profiles") mistakenly made the initial profile load at dockerd start-up
lazy. As a result, if you have a running Docker daemon and upgrade it to
a new one with an updated AppArmor profile the new profile will not take
effect (because the old one is still loaded). The fix for this is quite
trivial, and just requires us to clobber the profile on start-up.

Fixes: 567ef8e7858c ("daemon: switch to 'ensure' workflow for AppArmor profiles")
SUSE-Bugs: bsc#1099277
Signed-off-by: Aleksa Sarai <asarai@suse.de>
---
 daemon/apparmor_default.go             | 14 ++++++++++----
 daemon/apparmor_default_unsupported.go |  4 ++++
 daemon/daemon.go                       |  5 +++--
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/daemon/apparmor_default.go b/daemon/apparmor_default.go
index 5a3121d05b5a..d63799b4e113 100644
--- a/daemon/apparmor_default.go
+++ b/daemon/apparmor_default.go
@@ -23,6 +23,15 @@ func DefaultApparmorProfile() string {
 	return ""
 }
 
+func clobberDefaultAppArmorProfile() error {
+	if apparmor.HostSupports() {
+		if err := aaprofile.InstallDefault(defaultAppArmorProfile); err != nil {
+			return fmt.Errorf("AppArmor enabled on system but the %s profile could not be loaded: %s", defaultAppArmorProfile, err)
+		}
+	}
+	return nil
+}
+
 func ensureDefaultAppArmorProfile() error {
 	if apparmor.HostSupports() {
 		loaded, err := aaprofile.IsLoaded(defaultAppArmorProfile)
@@ -36,10 +45,7 @@ func ensureDefaultAppArmorProfile() error {
 		}
 
 		// Load the profile.
-		if err := aaprofile.InstallDefault(defaultAppArmorProfile); err != nil {
-			return fmt.Errorf("AppArmor enabled on system but the %s profile could not be loaded: %s", defaultAppArmorProfile, err)
-		}
+		return clobberDefaultAppArmorProfile()
 	}
-
 	return nil
 }
diff --git a/daemon/apparmor_default_unsupported.go b/daemon/apparmor_default_unsupported.go
index be4938f5b61a..2b326fea5829 100644
--- a/daemon/apparmor_default_unsupported.go
+++ b/daemon/apparmor_default_unsupported.go
@@ -2,6 +2,10 @@
 
 package daemon // import "github.com/docker/docker/daemon"
 
+func clobberDefaultAppArmorProfile() error {
+	return nil
+}
+
 func ensureDefaultAppArmorProfile() error {
 	return nil
 }
diff --git a/daemon/daemon.go b/daemon/daemon.go
index 388e3c1c2dbf..6741ab6b4991 100644
--- a/daemon/daemon.go
+++ b/daemon/daemon.go
@@ -875,8 +875,9 @@ func NewDaemon(ctx context.Context, config *config.Config, pluginStore *plugin.S
 		log.G(ctx).Warnf("Failed to configure golang's threads limit: %v", err)
 	}
 
-	// ensureDefaultAppArmorProfile does nothing if apparmor is disabled
-	if err := ensureDefaultAppArmorProfile(); err != nil {
+	// Make sure we clobber any pre-existing docker-default profile to ensure
+	// that upgrades to the profile actually work smoothly.
+	if err := clobberDefaultAppArmorProfile(); err != nil {
 		log.G(ctx).WithError(err).Error("Failed to ensure default apparmor profile is loaded")
 	}
 
-- 
2.49.0