added postgress support

Dockerfile

@@ -1,6 +1,6 @@
 FROM restic/restic
 
-RUN apk add --no-cache mysql-client rclone bash fuse
+RUN apk add --no-cache mysql-client rclone bash fuse postgresql-client
 
 RUN mkdir /app && mkdir /config
 

README.md

@@ -1,12 +1,16 @@
 Use [restic](https://restic.net/) together with rclone for a poor mans backup solution. 
 
+# Configuration
+
 Environment variables:
 
 `RCLONE_REMOTE` remote for rclone e.g. `gdrive:/backup`
 
 `RCLONE_CONFIG` file path for the rclone config file e.g. `/config/rclone.conf`
 
-`ENC_PASSWORD` or `ENC_PASSWORD_FILE` password for the repo 
+`RESTIC_PASSWORD` or `RESTIC_PASSWORD_FILE` password for the repo 
+
+`RCLONE_CONFIG_FILE` content of the rclone config.
 
 For the database:
 
@@ -18,4 +22,44 @@ For the database:
 
 `MYSQL_PASSWORD` or `MYSQL_PASSWORD_FILE`
 
+`POSTGRES_DUMP_DB` all databases comma sperated: `db1,db2`
+
+`POSTGRES_HOST`
+
+`POSTGRES_USERNAME`
+
+`POSTGRES_PASSWORD` or `POSTGRES_PASSWORD_FILE`
+
 Use the `/app/init.sh` script to init a new remote.
+
+# Directorys
+
+`/config` Contains the rclone config.
+`/backup` Contains the mounted volumes as read only
+`/restore` Contains volumes to restore
+
+# Usage
+
+Here is an example of the script i use to backup my volumes:
+
+```sh
+#!/usr/bin/env sh
+set -e 
+
+# get all volumes with the "backup.enable" lable on it
+BACKUP_VOL=$(docker volume ls --filter "label=backup.enable" --format '-v {{ .Name }}:/backup/{{ .Name }}:ro ')
+
+docker run \
+    --rm \
+    -e "RCLONE_REMOTE=gdrive:/backup" \
+    -e "RCLONE_CONFIG=/config/rclone.conf" \
+    -e "ENC_PASSWORD=MyPassword" \
+    -e "MYSQL_USERNAME=root" \
+    -e "MYSQL_PASSWORD=dbPassword" \
+    -e "MYSQL_DUMP_DB=db1,db2" \
+    -e "MYSQL_HOST=databaseHost" \
+    --network "dbNet" \
+    -v "/var/docker/backup:/config" \
+    $BACKUP_VOL \
+    djeeberjr/backup
+```

backup.sh

@@ -9,7 +9,13 @@ mkdir -p /backup/sqlDump
 for db in $(echo "$MYSQL_DUMP_DB" | sed 's/,/\n/g')
 do
     echo "Dumping db: $db"
-    mysqldump --compact -P 3306 --host "$MYSQL_HOST" -u "$MYSQL_USERNAME" "-p$MYSQL_PASSWORD_ACTUAL" "$db" > "/backup/sqlDump/$db.sql"
+    mysqldump --compact -P 3306 --host "$MYSQL_HOST" -u "$MYSQL_USERNAME" "-p$MYSQL_PASSWORD_ACTUAL" "$db" > "/backup/sqlDump/$db-mysql.sql"
+done
+
+for db in $(echo "$POSTGRES_DUMP_DB" | sed 's/,/\n/g')
+do
+    echo "Dumping db: $db"
+    pg_dump -U "$POSTGRES_USERNAME" --host "$POSTGRES_HOST" "$db" > "/backup/sqlDump/$db-postgres.sql"
 done
 
 restic --verbose backup "/backup"

setup.sh

@@ -31,7 +31,14 @@ elif [ -n "${MYSQL_PASSWORD_FILE}" ]; then
     MYSQL_PASSWORD_ACTUAL=$(cat "$MYSQL_PASSWORD_FILE")
 fi
 
+if [ -n "$POSTGRES_PASSWORD" ];then 
+    PGPASSWORD="$POSTGRES_PASSWORD"
+elif [ -n "$POSTGRES_PASSWORD_FILE" ]; then
+    PGPASSWORD=$(cat "$POSTGRES_PASSWORD_FILE")
+fi
+
 export RCLONE_REMOTE
 export RESTIC_PASSWORD
 export MYSQL_PASSWORD_ACTUAL
 export RESTIC_REPOSITORY
+export PGPASSWORD