Allow EXCLUDES and RESTIC_ADDITIONAL_TAGS to be blank (#160)

Author: itzg

README.md

@@ -28,10 +28,11 @@ Provides a side-car container to back up [itzg/minecraft-server](https://github.
 - `INCLUDES`=. : comma separated list of include patterns relative to directory specified by `SRC_DIR` where `.` specifies all of that directory should be included in the backup. 
 
   **For Restic** the default is the value of `SRC_DIR` to remain backward compatible with previous images.
-- `EXCLUDES`=\*.jar,cache,logs,\*.tmp
+- `EXCLUDES`=\*.jar,cache,logs,\*.tmp : commas separated list of file patterns to exclude from the backup. To disable exclusions, set to an empty string.
 - `EXCLUDES_FILE`: Can be set to read the list of excludes (one per line) from a file. Can be used with `EXCLUDES` to add more excludes.
 - `BACKUP_METHOD`=tar
-- `RESTIC_ADDITIONAL_TAGS`=mc_backups
+- `RESTIC_ADDITIONAL_TAGS`=mc_backups : additional tags to apply to the backup. Set to an empty string to disable additional tags.
+- `RESTIC_VERBOSE`=false : set to "true" to enable verbose output during restic backup operation
 - `TZ` : Can be set to the timezone to use for logging
 - `PRE_SAVE_ALL_SCRIPT`, `PRE_BACKUP_SCRIPT`, `PRE_SAVE_ON_SCRIPT`, `POST_BACKUP_SCRIPT`, `*_SCRIPT_FILE`: See [Backup scripts](#backup-scripts)
 

examples/docker-compose.restic.yml

@@ -10,7 +10,7 @@ services:
     volumes:
       - mc:/data
   backup:
-    image: itzg/mc-backup:local
+    image: itzg/mc-backup
     depends_on:
       mc:
         condition: service_healthy
@@ -21,7 +21,6 @@ services:
       RESTIC_PASSWORD: password
       RESTIC_REPOSITORY: /backups
       PRUNE_RESTIC_RETENTION: "--keep-daily 7 --keep-weekly 5"
-      RESTIC_VERBOSE: true
     volumes:
       - mc:/data:ro
       - backups:/backup

scripts/opt/backup-loop.sh

@@ -32,10 +32,10 @@ fi
 
 : "${RCON_RETRIES:=5}"
 : "${RCON_RETRY_INTERVAL:=10s}"
-: "${EXCLUDES:=*.jar,cache,logs,*.tmp}" # Comma separated list of glob(3) patterns
+: "${EXCLUDES=*.jar,cache,logs,*.tmp}" # Comma separated list of glob(3) patterns
 : "${EXCLUDES_FILE:=}" # Path to file containing list of glob(3) patterns
 : "${LINK_LATEST:=false}"
-: "${RESTIC_ADDITIONAL_TAGS:=mc_backups}" # Space separated list of restic tags
+: "${RESTIC_ADDITIONAL_TAGS=mc_backups}" # Space separated list of restic tags
 : "${RESTIC_HOSTNAME:=$(hostname)}"
 : "${RESTIC_VERBOSE:=false}"
 : "${XDG_CONFIG_HOME:=/config}" # for rclone's base config path