From 627ec5626238d1d0771b70dacca2e8e85a890083 Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Sat, 23 Dec 2023 21:26:23 +0100
Subject: [PATCH] feat: LINUX_IMMUTABLE flag (#485)

* feat: LINUX_IMMUTABLE flag
---
 readme.md      | 1 +
 src/disk.sh    | 3 ++-
 src/install.sh | 8 ++++----
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/readme.md b/readme.md
index c7365aa..029093e 100644
--- a/readme.md
+++ b/readme.md
@@ -36,6 +36,7 @@ services:
       - /dev/kvm
     cap_add:
       - NET_ADMIN
+      - LINUX_IMMUTABLE
     ports:
       - 5000:5000
     volumes:
diff --git a/src/disk.sh b/src/disk.sh
index 4021cd0..7e310bf 100644
--- a/src/disk.sh
+++ b/src/disk.sh
@@ -295,7 +295,8 @@ checkFS () {
 
     if [[ "$FA" != *"C"* ]]; then
       info "Warning: the filesystem of $DIR is ${FS^^}, and COW (copy on write) is not disabled for that folder!"
-      info "This will negatively affect performance, please empty the folder and disable COW (chattr +C <path>)."
+      info "This will negatively affect performance, please empty the folder and add the LINUX_IMMUTABLE flag"
+      info "to the 'cap_add' section of your compose file, or disable COW manually by executing: chattr +C <path>"
     fi
   fi
 
diff --git a/src/install.sh b/src/install.sh
index cdf90e1..11b1108 100644
--- a/src/install.sh
+++ b/src/install.sh
@@ -61,9 +61,10 @@ if [[ "$FS" == "xfs" || "$FS" == "zfs" || "$FS" == "btrfs" || "$FS" == "bcachefs
     { chattr -R +C "$STORAGE"; } || :
     FA=$(lsattr -d "$STORAGE")
   fi
-  if [[ "$FA" != *"C"* ]]; then  
+  if [[ "$FA" != *"C"* ]]; then
     info "Warning: the filesystem of $STORAGE is ${FS^^}, and COW (copy on write) is not disabled for that folder!"
-    info "This will negatively affect performance, please empty the folder and disable COW (chattr +C <path>)."
+    info "This will negatively affect performance, please empty the folder and add the LINUX_IMMUTABLE flag"
+    info "to the 'cap_add' section of your compose file, or disable COW manually by executing: chattr +C <path>"
   fi
 fi
 
@@ -74,8 +75,7 @@ else
   TMP="/tmp/dsm"
   SPACE=$(df --output=avail -B 1 /tmp | tail -n 1)
   if (( MIN_SPACE > SPACE )); then
-    TMP="$STORAGE/tmp"
-    info "Warning: the $FS filesystem of $STORAGE does not support UNIX permissions.."
+    error "The $FS filesystem of $STORAGE does not support UNIX permissions, and no space left in container.." && exit 93
   fi
 fi