Writing some doc on backup/restore

README.md

@@ -7,9 +7,67 @@ Currently following [this guide](https://yunohost.org/#/packaging_apps_fr) to pa
 - Add a 'protected' value to 'public' argument, so admin interface is protected
 - Replace 'password' argument by http_auth or ldap authent
 
-# Backup & Restore
+# Backup 
+
+Here's the command which should be tested and included in a /etc/cron.daily/dotclear2 script. Until Yunohost do allow user to manage backup through WebUI.
+
+    yunohost backup create --hooks dotclear2
+
+There might be two bugs preventing this command to work. First one
+
+    root@debian-jessie:~# yunohost backup create
+    Traceback (most recent call last):
+    File "/usr/bin/yunohost", line 160, in
+    print_json=PRINT_JSON, use_cache=USE_CACHE)
+    File "/usr/lib/python2.7/dist-packages/moulinette/__init__.py", line 117, in cli
+    moulinette.run(args, print_json)
+    File "/usr/lib/python2.7/dist-packages/moulinette/interfaces/cli.py", line 202, in run
+    ret = self.actionsmap.process(args, timeout=5)
+    File "/usr/lib/python2.7/dist-packages/moulinette/actionsmap.py", line 462, in process
+    return func(**arguments)
+    File "/usr/lib/moulinette/yunohost/backup.py", line 68, in backup_create
+    if name in backup_list()['archives']:
+    File "/usr/lib/moulinette/yunohost/backup.py", line 302, in backup_list
+    logging.info("unable to iterate over local archives: %s", str(e))
+    NameError: global name 'logging' is not defined
+
+Here is the fix
+
+    sed -i -e "302s/logging/logger/" /usr/lib/moulinette/yunohost/backup.py
+
+Second one
+
+    root@debian-jessie:~/dotclear2_ynh# yunohost backup create --hooks dotclear2
+    Exécution des scripts de sauvegarde...
+    Exécution du script...
+    /bin/bash: 50-dotclear2: Permission non accordée
+    Création de l'archive de sauvegarde...
+    Succès ! Sauvegarde terminée
+
+Here is the fix
+
+    chown admin /etc/yunohost/hooks.d/backup/50-dotclear2
+
+Here is an example of a proper backup
+
+    root@debian-jessie:~/dotclear2_ynh# yunohost backup create --hooks dotclear2
+    Exécution des scripts de sauvegarde...
+    Exécution du script...
+    + app=dotclear2
+    + backup_dir=/home/yunohost.backup/tmp/1440164746/apps/dotclear2
+    + sudo mkdir -p /home/yunohost.backup/tmp/1440164746/apps/dotclear2
+    + sudo cp -a /var/www/dotclear2/. /home/yunohost.backup/tmp/1440164746/apps/dotclear2/sources
+    ++ sudo yunohost app setting dotclear2 db_password
+    + db_password=zLiS4XNmfYUk
+    + sudo mysqldump -u dotclear2 -pzLiS4XNmfYUk dotclear2
+    50-dotclear2: ligne 16: /home/yunohost.backup/tmp/1440164746/apps/dotclear2/dump.sql: Permission non accordée
+    + sudo cp -a /etc/yunohost/apps/dotclear2/. /home/yunohost.backup/tmp/1440164746/apps/dotclear2/yunohost
+    ++ sudo yunohost app setting dotclear2 domain
+    + domain=vagrant.test
+    + sudo cp -a /etc/nginx/conf.d/vagrant.test.d/dotclear2.conf /home/yunohost.backup/tmp/1440164746/apps/dotclear2/nginx.conf
+    Création de l'archive de sauvegarde...
+    Succès ! Sauvegarde terminée
+
+# Restore
 
-Default YunoHost installation got a small bug that prevent `yunohost backup create`, here's the fix: `sed -i -e "302s/logging/logger/" /usr/lib/moulinette/yunohost/backup.py`
 
-Yet it doesn't seems to save apps, at least in my test environment. To be investigated.
-