fix disks-images-provider error in ubuntu host

In ubuntu host, selinux is not enabled by default. When starting disks-images-provider, following failure would appear: "can't apply partial context to unlabeled file". Check if file selinux tag exist before use chcon. Signed-off-by: Howard Zhang <[email protected]>
zyjj1 · Jun 18, 2020 · 7cf80c3 · 7cf80c3
1 parent 2b35c0c
commit 7cf80c3
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/images/disks-images-provider/entrypoint.sh b/images/disks-images-provider/entrypoint.sh
@@ -21,6 +21,7 @@ set -euo pipefail
 
 # gracefully handle the TERM signal sent when deleting the daemonset
 trap 'exit' TERM
+SELINUX_TAG=$(ls -Z)
 
 mkdir -p /images/datavolume1 /images/datavolume2 /images/datavolume3
 
@@ -38,7 +39,12 @@ rm /images/fedora-cloud/disk.qcow2
 echo "copy all images to host mount directory"
 cp -R /images/* /hostImages/
 chmod -R 777 /hostImages
-chcon -Rt svirt_sandbox_file_t /hostImages
+
+# When the host is ubuntu, by default, selinux is not used, so chcon is not necessary.
+# If selinux tag is set, use chcon to change /hostImages privileges.
+if [ ${SELINUX_TAG:0:1} != "?" ]; then
+    chcon -Rt svirt_sandbox_file_t /hostImages
+fi
 
 # for some reason without sleep, container sometime fails to create the file
 sleep 10