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File 0004-bsc1073877-apparmor-clobber-docker-default-profile-o.patch of Package docker (Revision b01ae5d476ef79286178436d09ef1699)

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From 41a72d2a2d835de1e806a5b316067ea933f665e2 Mon Sep 17 00:00:00 2001
From: Aleksa Sarai <asarai@suse.de>
Date: Fri, 29 Jun 2018 17:59:30 +1000
Subject: [PATCH 4/6] 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 a7cc3a5ef412..1a952953da8f 100644
--- a/daemon/apparmor_default.go
+++ b/daemon/apparmor_default.go
@@ -23,6 +23,15 @@ func DefaultApparmorProfile() string {
 	return ""
 }
 
+func clobberDefaultAppArmorProfile() error {
+	if apparmor.IsEnabled() {
+		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.IsEnabled() {
 		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 dd581dc7dadb..5b14979cd4a3 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 2a2fbbd52e19..0999ac3186b7 100644
--- a/daemon/daemon.go
+++ b/daemon/daemon.go
@@ -855,8 +855,9 @@ func NewDaemon(ctx context.Context, config *config.Config, pluginStore *plugin.S
 		logrus.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 {
 		logrus.Errorf(err.Error())
 	}
 
-- 
2.33.0

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File 0004-bsc1073877-apparmor-clobber-docker-default-profile-o.patch of Package docker (Revision b01ae5d476ef79286178436d09ef1699)

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