Added DB backup and restore

Dockerfile

@@ -1,21 +1,20 @@
 # Base on latest (edge) alpine image
 FROM harbor.ervine.dev/public/x86_64/alpine:v3.12
 
-MAINTAINER “Jonathan Ervine” <docker@ervine.org>
+LABEL "Maintainer Jonathan Ervine <docker@ervine.org>"
 
 # Install updates
 ENV LANG='en_US.UTF-8' \
     LANGUAGE='en_US.UTF-8' \
-    TERM='xterm' \
-    VERSION='develop' 
+    TERM='xterm' 
 
 RUN echo http://dl-4.alpinelinux.org/alpine/edge/testing >> /etc/apk/repositories && \
   apk -U update && \
   apk -U upgrade --ignore alpine-baselayout && \
-  apk -U add nfs-utils e2fsprogs util-linux&& \
+  apk -U add nfs-utils e2fsprogs util-linux python3 && \
   rm -rf /tmp/src && \
   rm -rf /var/cache/apk/*
 
 COPY start.sh /usr/local/bin/start.sh
 
-CMD [ "/usr/local/bin/start.sh" ]
+CMD [ "/usr/local/bin/start.sh", "$LIVE_DB", "$BACXKUP_DB" ]

db-backup.py

@@ -0,0 +1,11 @@
+import sys, sqlite3
+
+def progress(status, remaining, total):
+    print(f'Copied {total-remaining} of {total} pages...')
+
+con = sqlite3.connect('sys.argv[1]')
+bck = sqlite3.connect('sys.argv[2]')
+with bck:
+    con.backup(bck, pages=1, progress=progress)
+bck.close()
+con.close()

db-restore.py

@@ -0,0 +1,11 @@
+import sys, sqlite3
+
+def progress(status, remaining, total):
+    print(f'Copied {total-remaining} of {total} pages...')
+
+con = sqlite3.connect('sys.argv[2]')
+bck = sqlite3.connect('sys.argv[1]')
+with bck:
+    con.backup(bck, pages=1, progress=progress)
+bck.close()
+con.close()

start.sh

@@ -2,18 +2,18 @@
 ##
 ## Script to automate the copy of Sonarr databases
 ##
+LIVE_DB=$1
+BACKUP_DB=$2
 echo -e 'Starting the sidecar container to periodically backup the sonarr databases'
 chown 1003:1003 /mnt/app-local-config
 chown 1003:1003 /app-remote-config/*
-echo -e 'Copy the config from the remote share to the ramdisk'
-cp -fvp /app-remote-config/*.* /mnt/app-local-config
-echo -e 'Set up the filesystem freeze, copy, unfreeze loop'
+echo -e 'Copy the config from the remote share to the locali drive'
+touch /mnt/app-local-config/$LIVE_DB
+python3 /app-remote-config/db-restore.py $BACKUP_DB $LIVE_DB
+find /app-remote-config/ -type -f -not -iname $BACKUP_DB -exec cp -fvp '{}' '/mnt/app-local-config/{}' ';'
+echo -e 'Perform periodic backup of database'
 while true; do 
   sleep 890
   date
-  sync /mnt/app-local-config/*.*
-  fsfreeze --freeze /mnt/app-local-config
-  sleep 10
-  cp -fvp /mnt/app-local-config/*.* /app-remote-config/
-  fsfreeze --unfreeze /mnt/app-local-config
+  python3 /app-remote-config/db-backup.py $LIVE_DB $BACKUP_DB
 done