Fix some bugs, it is working now!

Dockerfile

@@ -24,4 +24,4 @@ ADD src/env.sh env.sh
 ADD src/backup.sh backup.sh
 # ADD src/restore.sh restore.sh  -- not ready yet
 
-CMD ['sh', 'run.sh']
+CMD ["sh", "run.sh"]

README.md

@@ -19,17 +19,21 @@ services:
 
   volume_backup:
     image: smartyellow/docker-volume-s3-backup
+    volumes:
+      data:/data/folder1
     environment:
-      SCHEDULE: '@weekly'     # optional
-      BACKUP_KEEP_DAYS: 7     # optional
-      PASSPHRASE: passphrase  # optional
-      S3_REGION: region
-      S3_ACCESS_KEY_ID: key
-      S3_SECRET_ACCESS_KEY: secret
-      S3_BUCKET: my-bucket
-      S3_PREFIX: backup
+      BACKUP_NAME: myvolume         # required
+      SCHEDULE: '@weekly'           # optional
+      BACKUP_KEEP_DAYS: 7           # optional
+      PASSPHRASE: passphrase        # optional
+      S3_REGION: region             # or set S3_ENDPOINT if you do not use AWS
+      S3_ACCESS_KEY_ID: key         # alias S3_ACCESS_KEY
+      S3_SECRET_ACCESS_KEY: secret  # alias S3_SECRET_KEY
+      S3_BUCKET: my-bucket          # required
+      S3_PREFIX: backup             # required
 ```
 
+- You can mount as many folders into `/data` as you like. Everything in `/data` is copied to your S3 storage in a single `.tar.gz`.
 - The `SCHEDULE` variable determines backup frequency. See go-cron schedules documentation [here](http://godoc.org/github.com/robfig/cron#hdr-Predefined_schedules). Omit to run the backup immediately and then exit.
 - If `PASSPHRASE` is provided, the backup will be encrypted using GPG.
 - Run `docker exec <container_name> sh backup.sh` to trigger a backup ad-hoc.

docker-compose.yaml

@@ -4,16 +4,22 @@
 # $ docker compose up -d --build --force-recreate
 
 services:
-  test:
-    build: test_image
+  test_image:
+    build: ./test_image
     volumes:
       - data:/data
 
   backup:
     build: .
     env_file: .env
+    volumes:
+      - data:/data/testdir
     environment:
+      BACKUP_NAME: backup-test
       SCHEDULE: '* * * * *'
       BACKUP_KEEP_DAYS: 7
       PASSPHRASE: passphrase
       S3_PREFIX: backup-test
+
+volumes:
+  data:

src/backup.sh

@@ -6,7 +6,7 @@ set -o pipefail
 source ./env.sh
 
 echo "Creating backup..."
-tar -xzf dump.tar.gz /data
+tar -czf dump.tar.gz /data
 
 timestamp=$(date +"%Y-%m-%dT%H:%M:%S")
 s3_uri_base="s3://${S3_BUCKET}/${S3_PREFIX}/${BACKUP_NAME}_${timestamp}.dump"

test_image/Dockerfile

@@ -1,3 +1,5 @@
-FROM scratch
+FROM alpine:3.21
 
 COPY data/ /data
+
+ENTRYPOINT ["/bin/sh", "-c", "while sleep 3600; do :; done"]