pkg/apparmor: move data under Linux/apparmor buildtags

Move all Linux-related data under the corresponding buildtags to reduce
the memory footprint and speed up compilation for non-apparmor builds.

Signed-off-by: Valentin Rothberg <vrothberg@suse.com>

Closes: #1262
Approved by: mheon

3 files changed, 46 insertions, 42 deletions

diff --git a/pkg/apparmor/apparmor.go b/pkg/apparmor/apparmor.go
index 1c205f68a..8b9f99477 100644
--- a/pkg/apparmor/apparmor.go
+++ b/pkg/apparmor/apparmor.go
@@ -5,50 +5,8 @@ import (
 )
 
 var (
-	// profileDirectory is the file store for apparmor profiles and macros.
-	profileDirectory = "/etc/apparmor.d"
 	// DefaultLibpodProfile is the name of default libpod AppArmor profile.
 	DefaultLibpodProfile = "libpod-default"
 	// ErrApparmorUnsupported indicates that AppArmor support is not supported.
 	ErrApparmorUnsupported = errors.New("AppArmor is not supported")
 )
-
-const libpodProfileTemplate = `
-{{range $value := .Imports}}
-{{$value}}
-{{end}}
-
-profile {{.Name}} flags=(attach_disconnected,mediate_deleted) {
-{{range $value := .InnerImports}}
-  {{$value}}
-{{end}}
-
-  network,
-  capability,
-  file,
-  umount,
-
-  deny @{PROC}/* w,   # deny write for all files directly in /proc (not in a subdir)
-  # deny write to files not in /proc/<number>/** or /proc/sys/**
-  deny @{PROC}/{[^1-9],[^1-9][^0-9],[^1-9s][^0-9y][^0-9s],[^1-9][^0-9][^0-9][^0-9]*}/** w,
-  deny @{PROC}/sys/[^k]** w,  # deny /proc/sys except /proc/sys/k* (effectively /proc/sys/kernel)
-  deny @{PROC}/sys/kernel/{?,??,[^s][^h][^m]**} w,  # deny everything except shm* in /proc/sys/kernel/
-  deny @{PROC}/sysrq-trigger rwklx,
-  deny @{PROC}/kcore rwklx,
-
-  deny mount,
-
-  deny /sys/[^f]*/** wklx,
-  deny /sys/f[^s]*/** wklx,
-  deny /sys/fs/[^c]*/** wklx,
-  deny /sys/fs/c[^g]*/** wklx,
-  deny /sys/fs/cg[^r]*/** wklx,
-  deny /sys/firmware/** rwklx,
-  deny /sys/kernel/security/** rwklx,
-
-{{if ge .Version 208095}}
-  # suppress ptrace denials when using using 'ps' inside a container
-  ptrace (trace,read) peer={{.Name}},
-{{end}}
-}
-`
diff --git a/pkg/apparmor/apparmor_linux.go b/pkg/apparmor/apparmor_linux.go
index 4cc95a107..1d2ac36a6 100644
--- a/pkg/apparmor/apparmor_linux.go
+++ b/pkg/apparmor/apparmor_linux.go
@@ -17,6 +17,9 @@ import (
 	runcaa "github.com/opencontainers/runc/libcontainer/apparmor"
 )
 
+// profileDirectory is the file store for apparmor profiles and macros.
+var profileDirectory = "/etc/apparmor.d"
+
 // IsEnabled returns true if AppArmor is enabled on the host.
 func IsEnabled() bool {
 	return runcaa.IsEnabled()
diff --git a/pkg/apparmor/apparmor_linux_template.go b/pkg/apparmor/apparmor_linux_template.go
new file mode 100644
index 000000000..163ba3792
--- /dev/null
+++ b/pkg/apparmor/apparmor_linux_template.go
@@ -0,0 +1,43 @@
+// +build linux,apparmor
+
+package apparmor
+
+const libpodProfileTemplate = `
+{{range $value := .Imports}}
+{{$value}}
+{{end}}
+
+profile {{.Name}} flags=(attach_disconnected,mediate_deleted) {
+{{range $value := .InnerImports}}
+  {{$value}}
+{{end}}
+
+  network,
+  capability,
+  file,
+  umount,
+
+  deny @{PROC}/* w,   # deny write for all files directly in /proc (not in a subdir)
+  # deny write to files not in /proc/<number>/** or /proc/sys/**
+  deny @{PROC}/{[^1-9],[^1-9][^0-9],[^1-9s][^0-9y][^0-9s],[^1-9][^0-9][^0-9][^0-9]*}/** w,
+  deny @{PROC}/sys/[^k]** w,  # deny /proc/sys except /proc/sys/k* (effectively /proc/sys/kernel)
+  deny @{PROC}/sys/kernel/{?,??,[^s][^h][^m]**} w,  # deny everything except shm* in /proc/sys/kernel/
+  deny @{PROC}/sysrq-trigger rwklx,
+  deny @{PROC}/kcore rwklx,
+
+  deny mount,
+
+  deny /sys/[^f]*/** wklx,
+  deny /sys/f[^s]*/** wklx,
+  deny /sys/fs/[^c]*/** wklx,
+  deny /sys/fs/c[^g]*/** wklx,
+  deny /sys/fs/cg[^r]*/** wklx,
+  deny /sys/firmware/** rwklx,
+  deny /sys/kernel/security/** rwklx,
+
+{{if ge .Version 208095}}
+  # suppress ptrace denials when using using 'ps' inside a container
+  ptrace (trace,read) peer={{.Name}},
+{{end}}
+}
+`