From c12a7f4fb6cb1c2cd6ec415f9558d7455126f51f Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Thu, 13 Jan 2022 22:43:31 +0100
Subject: enable syncoid-based backups for ch-apps data dir

---
 inventory/host_vars/ch-apps.yml                         |  4 ++++
 inventory/host_vars/ch-epimetheus.yml                   | 12 ++++++++++++
 roles/storage/zfs/syncoid/templates/syncoid_finalize.j2 |  7 ++++++-
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/inventory/host_vars/ch-apps.yml b/inventory/host_vars/ch-apps.yml
index b04d7978..860ef4f6 100644
--- a/inventory/host_vars/ch-apps.yml
+++ b/inventory/host_vars/ch-apps.yml
@@ -65,6 +65,10 @@ spreadspace_apt_repo_components:
   - container
 
 
+ssh_keys_root_extra:
+  - ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIZK9NBainiE0+A8pT8dbwlNZ0k0AZVhLTzUSo3YtKJt ZFS Backup syncoid@epimetheus
+
+
 zfs_arc_size:
   min: 512MB
   max: 2GB
diff --git a/inventory/host_vars/ch-epimetheus.yml b/inventory/host_vars/ch-epimetheus.yml
index ee26cc65..8ac909ab 100644
--- a/inventory/host_vars/ch-epimetheus.yml
+++ b/inventory/host_vars/ch-epimetheus.yml
@@ -104,6 +104,18 @@ zfs_syncoid_sources:
       nvme/vm:
         recursive: yes
         skip_parent: yes
+  'ch-apps':
+    ssh_hostname: "{{ network_zones.svc.prefix | ipaddr(network_zones.svc.offsets['ch-apps']) | ipaddr('address') }}"
+    ssh_port: "{{ hostvars['ch-apps'].ansible_port }}"
+    ## TODO: enable this once ch-apps is part of prometheus
+    # report_prometheus_textfile_path: "/var/lib/prometheus-node-exporter/textfile-collector"
+    periodic:
+      schedule: "*-*-* 00,06,12,18:15:00"
+      timeout: 5h
+    paths:
+      storage:
+        recursive: yes
+        skip_parent: yes
   'ch-equinox-t450s':
     ssh_hostname: 192.168.28.139
     ssh_port: 222
diff --git a/roles/storage/zfs/syncoid/templates/syncoid_finalize.j2 b/roles/storage/zfs/syncoid/templates/syncoid_finalize.j2
index 3869e975..638781ac 100644
--- a/roles/storage/zfs/syncoid/templates/syncoid_finalize.j2
+++ b/roles/storage/zfs/syncoid/templates/syncoid_finalize.j2
@@ -42,6 +42,11 @@ syncoid_pull_run{backup_server="{{ inventory_hostname }}"} $now
 syncoid_pull_duration_seconds{backup_server="{{ inventory_hostname }}"} $duration
 EOF
 
+if [ "$#" -eq 0 ]; then
+  echo "not transferring prometheus metrics."
+  exit $ret
+fi
+
 
 if [ -z "$1" ] || [ -z "$2" ] || [ "$1" == "--" ] || [ "$2" == "--" ]; then
   echo "$0 <host> <textfile-collector-path> [ -- <additional ssh arguments .. > ]"
@@ -58,7 +63,7 @@ if [ -n "$1" ]; then
   shift
 fi
 
-echo "transfering prometheus metrics to: $report_to:$textfile_collector_path"
+echo "transferring prometheus metrics to: $report_to:$textfile_collector_path"
 cat "$RUNTIME_DIRECTORY/metrics" | ssh -o "UserKnownHostsFile=/var/lib/syncoid/ssh.knownhosts" -o "HashKnownHosts=no" -i "/var/lib/syncoid/id_ssh_ed25519" "$@" "$report_to" "cat > '$textfile_collector_path/syncoid-pull-{{ inventory_hostname }}.prom'"
 
 exit $ret
-- 
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