add automated Apps Backup option

README.md

@@ -17,9 +17,12 @@ Just run `trueupdate` in the shell of your TrueNAS SCALE machine, to have it pro
 
 Additional options are available:
 
+- `trueupdate --catalog CATALOGNAME` where CATALOGNAME is the name of the catalog you want to process in caps
+- `trueupdate --versioning SCHEME` where SCHEME is the highest semver version you want to process. options: `patch`, `minor` and `major`
+
+
 - `trueupdate -h` for the CLI help page
 - `trueupdate -s` or ` trueupdate --sync` to sync the catalogs before running auto-update
 - `trueupdate -p` or ` trueupdate --prune` to prune (remove) old docker images after running auto-update
 - `trueupdate -a` or ` trueupdate --all` updates both active (running) and non-active (stuck or stopped) Apps
-- `trueupdate --catalog CATALOGNAME` where CATALOGNAME is the name of the catalog you want to process in caps
-- `trueupdate --versioning SCHEME` where SCHEME is the highest semver version you want to process. options: `patch`, `minor` and `major`
+- `trueupdate -b` or ` trueupdate --backup` backup the complete Apps system prior to updates

setup.py

@@ -7,7 +7,7 @@ README_MD = open(join(dirname(abspath(__file__)), "README.md")).read()
 
 setup(
     name="trueupdate",
-    version="2.2.0",
+    version="2.3.0",
 
     # The packages that constitute your project.
     # For my project, I have only one - "pydash".

trueupdate/__init__.py

@@ -89,12 +89,14 @@ def process_args():
     global SYNC
     global PRUNE
     global ALL
+    global BACKUP
     parser = argparse.ArgumentParser(description='Update TrueNAS SCALE Apps')
     parser.add_argument('--catalog', nargs='?', default='ALL', help='name of the catalog you want to process in caps. Or "ALL" to render all catalogs.')
     parser.add_argument('--versioning', nargs='?', default='minor', help='Name of the versioning scheme you want to update. Options: major, minor or patch. Defaults to minor')
     parser.add_argument('-s', '--sync', action="store_true", help='sync catalogs before trying to update')
     parser.add_argument('-p', '--prune', action="store_true", help='prune old docker images after update')
     parser.add_argument('-a', '--all', action="store_true", help='update "active" apps only and ignore "stopped" or "stuck" apps')
+    parser.add_argument('-b', '--backup', action="store_true", help='backup the complete Apps system prior to updates')
     args = parser.parse_args()
     CATALOG = args.catalog
     VERSIONING = args.versioning
@@ -110,6 +112,10 @@ def process_args():
       ALL = True
     else:
       ALL = False
+    if args.backup:
+      BACKUP = True
+    else:
+      BACKUP = False
     
 def sync_catalog():
     if SYNC:
@@ -128,9 +134,21 @@ def docker_prune():
       process = subprocess.Popen(["docker", "image", "prune", "-af"], stdout=subprocess.PIPE)
       print("Images pruned.\n")
       
+def chart_backup():
+    if BACKUP:
+      print("Running App Backup...\n")
+      process = subprocess.Popen(["cli", "-c", "app kubernetes backup_chart_releases"], stdout=subprocess.PIPE)
+      while process.poll() is None:
+          lines = process.stdout.readline()
+          print (lines.decode('utf-8'))
+      temp = process.stdout.read()
+      if temp:
+        print (temp.decode('utf-8'))
+  
 def run():
     process_args()
     print("Starting TrueCharts App updater...\n")
+    chart_backup()
     sync_catalog()
     charts = fetch_charts()
     parse_charts(charts)