Fix umask - get umask from environment

Makes it consistent with other linuxserver.io images.

readme-vars.yml

@@ -36,6 +36,7 @@ param_ports:
 param_usage_include_env: true
 param_env_vars:
   - { env_var: "TZ", env_value: "Europe/London", desc: "Specify a timezone to use EG Europe/London, this is required for Radarr"}
+  - { env_var: "UMASK_SET", env_value: "022", desc: "control permissions of files and directories created by Radarr"}
 
 # application setup block
 app_setup_block_enabled: true
@@ -44,6 +45,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "13.06.19:", desc: "Add env variable for setting umask." }
   - { date: "10.05.19:", desc: "Rebase to Bionic." }
   - { date: "23.03.19:", desc: "Switching to new Base images, shift to arm32v7 tag." }
   - { date: "09.09.18:", desc: "Add pipeline build process." }

root/etc/services.d/radarr/run

@@ -1,5 +1,9 @@
 #!/usr/bin/with-contenv bash
 
+UMASK_SET=${UMASK_SET:-022}
+
+umask "$UMASK_SET"
+
 cd /opt/radarr || exit
 
 exec \