Add RO support

root/etc/s6-overlay/s6-rc.d/init-plex-chown/run

@@ -1,6 +1,8 @@
 #!/usr/bin/with-contenv bash
 # shellcheck shell=bash
 
+mkdir -p /run/plex-temp
+
 # create folders
 if [[ ! -d "${PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR}" ]]; then
     mkdir -p "${PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR}"
@@ -35,5 +37,6 @@ fi
 
 # permissions (non-recursive) on config root and folders
 lsiown abc:abc \
+    /run/plex-temp \
     /config \
     /config/*

root/etc/s6-overlay/s6-rc.d/init-plex-update/run

@@ -1,6 +1,11 @@
 #!/usr/bin/with-contenv bash
 # shellcheck shell=bash
 
+if [[ -z ${LSIO_READ_ONLY_FS} ]] || [[ -z ${LSIO_NON_ROOT_USER} ]]; then
+    echo "Runtime update not supported with read-only or non-root operation, skipping."
+    exit 0
+fi
+
 # If docker manages versioning exit
 if [[ -n "${VERSION}" ]] && [[ "${VERSION}" == "docker" ]]; then
     echo "Docker is used for versioning skip update check"