snapshot deletion as a service

These service files are ready to be launched by timers with the
parameter being the directory name to prune.  Template timers can be
enabled by scanning /etc/btrfs/*.json for local destinations.

2 files changed, 18 insertions, 0 deletions

diff --git a/src/delete-snapshots@.service b/src/delete-snapshots@.service
new file mode 100644
index 0000000..7e36bf7
--- /dev/null
+++ b/src/delete-snapshots@.service
@@ -0,0 +1,9 @@
+[Unit]
+Description = Delete what would not be retained by retain-snapshots
+ConditionUser = root
+
+[Service]
+ExecStart = retain-snapshots --delete %I
+
+[Install]
+WantedBy=default.target
diff --git a/src/retain-snapshots@.service b/src/retain-snapshots@.service
new file mode 100644
index 0000000..473dab8
--- /dev/null
+++ b/src/retain-snapshots@.service
@@ -0,0 +1,9 @@
+[Unit]
+Description = Display what would be retained by delete-snapshots
+ConditionUser = root
+
+[Service]
+ExecStart = retain-snapshots %I
+
+[Install]
+WantedBy=default.target