From aa52baa3e72d2ee29c2fb1248df4dfbdafe61944 Mon Sep 17 00:00:00 2001
From: 0xFEEDC0DE64 <daniel@brunner.ninja>
Date: Sun, 25 Oct 2026 07:10:01 +0100
Subject: [PATCH] Log mounted filesystems for backup job guards

---
 apps/backup/arschrock-postgresql.yaml      | 4 +++-
 apps/backup/cephfs/base/resources.yaml     | 7 +++++--
 apps/backup/postgresql/base/resources.yaml | 4 +++-
 apps/backup/s3/resources.yaml              | 4 +++-
 4 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/apps/backup/arschrock-postgresql.yaml b/apps/backup/arschrock-postgresql.yaml
index b78e6b2..202a8dd 100644
--- a/apps/backup/arschrock-postgresql.yaml
+++ b/apps/backup/arschrock-postgresql.yaml
@@ -7,7 +7,9 @@ data:
   backup.sh: |
     #!/bin/sh
     set -eu
-    test "$(stat -f -c %T /backup)" = bcachefs
+    backup_fs=$(stat -f -c %T /backup)
+    echo "Backup filesystem: $backup_fs"
+    test "$backup_fs" = bcachefs
     test -d /backup/kubernetes/postgresql/arschrock
     test "$(stat -c %u /backup/kubernetes/postgresql/arschrock)" = 962
     test -S /postgresql/.s.PGSQL.5432
diff --git a/apps/backup/cephfs/base/resources.yaml b/apps/backup/cephfs/base/resources.yaml
index 8c9bd8a..1ccb1ba 100644
--- a/apps/backup/cephfs/base/resources.yaml
+++ b/apps/backup/cephfs/base/resources.yaml
@@ -6,8 +6,11 @@ data:
   backup.sh: |
     #!/bin/sh
     set -eu
-    test "$(stat -f -c %T /backup)" = bcachefs
-    test "$(stat -f -c %T /source)" = ceph
+    backup_fs=$(stat -f -c %T /backup)
+    source_fs=$(stat -f -c %T /source)
+    echo "Backup filesystem: $backup_fs; source filesystem: $source_fs"
+    test "$backup_fs" = bcachefs
+    test "$source_fs" = ceph
     test -d /source
     rsync --archive --numeric-ids --inplace --partial --delete --human-readable --stats /source/ /backup/
     echo "Completed CephFS mirror for $BACKUP_TARGET"
diff --git a/apps/backup/postgresql/base/resources.yaml b/apps/backup/postgresql/base/resources.yaml
index eca2cec..6e292d6 100644
--- a/apps/backup/postgresql/base/resources.yaml
+++ b/apps/backup/postgresql/base/resources.yaml
@@ -6,7 +6,9 @@ data:
   backup.sh: |
     #!/bin/sh
     set -eu
-    test "$(stat -f -c %T /backup)" = bcachefs
+    backup_fs=$(stat -f -c %T /backup)
+    echo "Backup filesystem: $backup_fs"
+    test "$backup_fs" = bcachefs
     case "$BACKUP_TARGET" in *[!a-zA-Z0-9_-]*|'') echo "Invalid backup target" >&2; exit 1 ;; esac
     PGUSER="${PGUSER:-postgres}"
     PGDATABASE="${PGDATABASE:-postgres}"
diff --git a/apps/backup/s3/resources.yaml b/apps/backup/s3/resources.yaml
index b6d7eed..3225a21 100644
--- a/apps/backup/s3/resources.yaml
+++ b/apps/backup/s3/resources.yaml
@@ -20,7 +20,9 @@ data:
   backup.sh: |
     #!/bin/sh
     set -eu
-    test "$(stat -f -c %T /backup)" = bcachefs
+    backup_fs=$(stat -f -c %T /backup)
+    echo "Backup filesystem: $backup_fs"
+    test "$backup_fs" = bcachefs
     endpoint=http://rook-ceph-rgw-my-store.rook-ceph.svc:80
     failures=0
     while read -r bucket owner; do