From 9dd9c2ec2e0e0f34db95d9650ea253c147f8c7d3 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Tue, 11 Jan 2022 00:19:35 +0100
Subject: zfs/syncoid: add duration of job to prometheus metrics

---
 roles/storage/zfs/syncoid/templates/syncoid_finalize.j2 | 15 +++++++++++++--
 roles/storage/zfs/syncoid/templates/syncoid_pull.j2     |  6 ++++++
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/roles/storage/zfs/syncoid/templates/syncoid_finalize.j2 b/roles/storage/zfs/syncoid/templates/syncoid_finalize.j2
index 5ddc691b..3869e975 100644
--- a/roles/storage/zfs/syncoid/templates/syncoid_finalize.j2
+++ b/roles/storage/zfs/syncoid/templates/syncoid_finalize.j2
@@ -3,7 +3,7 @@
 
 echo "running sanoid --prune to cleanup old snapshots"
 sleep 5
-echo systemctl start --wait sanoid-prune.service
+systemctl start --wait sanoid-prune.service
 
 echo "wait 30s (autosuspend cooldown period)"
 sleep 30
@@ -27,8 +27,19 @@ for line in $(cat "$RUNTIME_DIRECTORY/exit_codes"); do
   fi
 done
 
+now=$(date +"%s")
+starttime=$(cat "$RUNTIME_DIRECTORY/start")
+duration=0
+if [[ $starttime =~ [^[:digit:]] ]]; then
+  ret=-1
+  echo "invalid starttime from pull script: $starttime"
+else
+  duration=$(( now - starttime ))
+fi
+
 cat <<EOF >> "$RUNTIME_DIRECTORY/metrics"
-syncoid_pull_last_run{backup_server="{{ inventory_hostname }}"} $(date +"%s")
+syncoid_pull_run{backup_server="{{ inventory_hostname }}"} $now
+syncoid_pull_duration_seconds{backup_server="{{ inventory_hostname }}"} $duration
 EOF
 
 
diff --git a/roles/storage/zfs/syncoid/templates/syncoid_pull.j2 b/roles/storage/zfs/syncoid/templates/syncoid_pull.j2
index ab6c3116..d54683c5 100644
--- a/roles/storage/zfs/syncoid/templates/syncoid_pull.j2
+++ b/roles/storage/zfs/syncoid/templates/syncoid_pull.j2
@@ -16,6 +16,12 @@ if [ -n "$1" ]; then
   shift
 fi
 
+if [ -n "$RUNTIME_DIRECTORY" ]; then
+  if [ ! -e "$RUNTIME_DIRECTORY/start" ]; then
+    date +"%s" > "$RUNTIME_DIRECTORY/start"
+  fi
+fi
+
 /usr/sbin/syncoid --sshoption "UserKnownHostsFile=/var/lib/syncoid/ssh.knownhosts" --sshoption "HashKnownHosts=no" --sshkey "/var/lib/syncoid/id_ssh_ed25519" --no-sync-snap --compress zstd-fast "$@" "$src_host:$src_path" "$dest_path"
 ret=$?
 
-- 
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