allow ability for additional packages

README.md

@@ -35,7 +35,8 @@ It uses cron to run the backups at a time you can configure in `data/borgmatic.d
 # Environment Variables
 | Variable | Description | Possible Values | Default |
 | :----: | --- | --- | --- |
-| DOCKERCLI | Install DockerCLI | true | Empty |
+| DOCKERCLI | Install DockerCLI and ComposeCLI | true | Empty |
+| EXTRA_PKGS | Install additional packages | postgresql16 libecpg <other packages> | Empty |
 | CRON | Cron times | cron time, false | 0 1 * * * |
 | CRON_COMMAND | Command cron will run | borgmatic --stats -v 0 2>&1 | borgmatic --stats -v 0 2>&1 |
 | EXTRA_CRON | Extra cron lines | 0 5 2 * * command1 | Empty |

base-fullbuild/root/etc/s6-overlay/s6-rc.d/svc-cron/run

@@ -11,6 +11,13 @@ else
   composever="not installed"
 fi
 
+# Install additional packages
+if [ -v EXTRA_PKGS ]
+then
+    echo Installing extra packages: "$EXTRA_PKGS"
+    apk add -U --quiet $EXTRA_PKGS
+fi
+
 # Version variables
 borgver=$(borg --version)
 borgmaticver=$(borgmatic --version)
@@ -28,8 +35,14 @@ composecli $composever
 python $pythonver
 -----------------------------------
 Time Zone: $TZ
------------------------------------
-"
+-----------------------------------"
+if [ -v EXTRA_PKGS ]
+then
+  echo "Additional packages installed:"
+  echo "-----------------------------------"
+  echo $EXTRA_PKGS | tr -s " " "\n"
+  echo "-----------------------------------"
+fi
 
 # Enable initial debug logging based on the DEBUG_SECRETS environment variable.
 # Logs the initial values of BORG_PASSPHRASE and BORG_PASSPHRASE_FILE.