Add upgrade procedure with remove/deploy

README.md

@@ -15,6 +15,15 @@ Pyinfra that deploy PhotoPrism un-dockerized on a Debian 11 LXD container.
 # pyinfra inventories/production.py deploy.py
 ```
 
+## Upgrade
+
+Run `remove.py` then `deploy.py`.
+
+```
+# pyinfra inventories/production.py remove.py
+# pyinfra inventories/production.py deploy.py
+```
+
 # Attach a pictures volume
 
 If required, you can mount external volumes. Example:

deploy.py

@@ -88,11 +88,12 @@ files.directory(
     mode=755
 )
 
-server.shell(
-    name='Undocker the Docker image',
-    chdir=host.data.undocker_dst,
-    commands=['undocker '+host.data.undocker_cache+'/photoprism.tar - | tar -xv'],
-)
+if not host.fact.directory(host.data.undocker_dst):
+    server.shell(
+        name='Undocker the Docker image',
+        chdir=host.data.undocker_dst,
+        commands=['undocker '+host.data.undocker_cache+'/photoprism.tar - | tar -xv'],
+    )
 
 files.template(
     name='Set env file',

remove.py

@@ -0,0 +1,16 @@
+from pyinfra import host
+from pyinfra.operations import server, files
+
+if host.fact.file(host.data.undocker_cache+'/photoprism.tar'):
+    server.shell(
+        name='Remove photoprism Docker image',
+        chdir=host.data.undocker_cache,
+        commands=['rm photoprism.tar'],
+    )
+
+if host.fact.directory(host.data.undocker_dst):
+    server.shell(
+        name='Remove undocker destination',
+        commands=['rm -rf {}'.format(host.data.undocker_dst)],
+    )
+

templates/systemd-run.sh.j2

@@ -3,6 +3,7 @@ set -euo pipefail
 
 systemd-run \
   --pty \
+  --unit='photoprism-run' \
   --description='photoprism binary call' \
   --property=User={{ host.data.unix_user }} \
   --property=Group={{ host.data.unix_group }} \