diff --git a/.env.default b/.env.default
new file mode 100644
index 0000000..912961a
--- /dev/null
+++ b/.env.default
@@ -0,0 +1,7 @@
+PBS_SERVER=""
+PBS_DATASTORE=""
+PBS_BACKUP_ID=""
+PBS_PASSWORD=""
+PBS_FINGERPRINT=""
+PBS_PRUNE=""
+PBS_PRUNE_ARGS=""
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4c49bd7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.env
diff --git a/Dockerfile b/Dockerfile
index e97328b..9cfb9e1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -23,4 +23,11 @@ RUN apt-get update && \
     apt-get install -y proxmox-backup-client && \
     rm -rf /var/lib/apt/lists/*
 
-CMD ["proxmox-backup-client", "--help"]
+# Add script
+WORKDIR /app
+COPY ./app/* .
+
+# Change Permissions
+RUN chmod +x ./backup.sh
+
+CMD ./backup.sh
diff --git a/app/backup.sh b/app/backup.sh
new file mode 100755
index 0000000..5526da1
--- /dev/null
+++ b/app/backup.sh
@@ -0,0 +1,87 @@
+#! /usr/bin/env bash
+
+set -euo pipefail
+
+### DEFAULTS ###
+
+BACKUP_SOURCE="/mnt/backup"
+
+### CHECK REQUIRED ENV VARS ###
+
+REQ_VARS=(
+  "PBS_SERVER"
+  "PBS_DATASTORE"
+  "PBS_BACKUP_ID"
+  "PBS_PASSWORD"
+)
+
+for var in "${REQ_VARS[@]}"; do
+  if [[ -z "${!var:-}" ]]; then
+    echo "ERROR: Required environment variable '$var' is not set." >&2
+    exit 1
+  fi
+done
+
+# Optional fingerprint
+if [[ -n "${PBS_FINGERPRINT:-}" ]]; then
+  export PBS_FINGERPRINT
+fi
+
+export PBS_PASSWORD
+
+
+
+### LOGGING SETUP ###
+
+LOGFILE="/var/log/pbs-backup.log"
+mkdir -p "$(dirname "$LOGFILE")"
+
+log() {
+    # Log to stdout + file simultaneously, Docker-friendly
+    printf "%s\n" "$*" | tee -a "$LOGFILE" >/proc/1/fd/1
+}
+
+
+
+### BACKUP OPERATION ###
+
+TIMESTAMP=$(date +"%Y-%m-%d_%H-%M-%S")
+SNAPSHOT_NAME="backup-$TIMESTAMP"
+
+log "==============================================="
+log " Starting PBS Backup: $SNAPSHOT_NAME"
+log " Source:      $BACKUP_SOURCE"
+log " Repository:  $PBS_SERVER:$PBS_DATASTORE"
+log " Backup ID:   $PBS_BACKUP_ID"
+log "==============================================="
+
+proxmox-backup-client backup \
+  "$SNAPSHOT_NAME.pxar:$BACKUP_SOURCE" \
+  --repository "$PBS_SERVER:$PBS_DATASTORE" \
+  --backup-id "$PBS_BACKUP_ID" \
+  2>&1 | tee -a "$LOGFILE" >/proc/1/fd/1
+
+log "--- Backup completed ---"
+
+
+
+### PRUNE (optional) ###
+
+PBS_PRUNE="${PBS_PRUNE:-true}"
+PRUNE_ARGS="${PBS_PRUNE_ARGS:---keep-daily=7 --keep-weekly=4 --keep-monthly=3}"
+
+if [[ "$PBS_PRUNE" == "true" ]]; then
+    log "--- Running prune ---"
+
+    proxmox-backup-client prune \
+      --repository "$PBS_SERVER:$PBS_DATASTORE" \
+      --backup-id "$PBS_BACKUP_ID" \
+      $PRUNE_ARGS \
+      2>&1 | tee -a "$LOGFILE" >/proc/1/fd/1
+
+    log "--- Prune completed ---"
+else
+    log "--- Prune disabled ---"
+fi
+
+echo "=== Done ===" | tee -a
diff --git a/build.sh b/build.sh
old mode 100644
new mode 100755
diff --git a/docker-compose.yaml b/docker-compose.yaml
index efdc96e..8a51101 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -1,6 +1,17 @@
-
 services:
-    backup:
-        image: 6917544a5239ec13c3e66efdd245df2a9c9891e9c83bc78ddc733ea04d5777bd
-        container_name: backup_service
+  backup:
+    image: pbs-client
+    container_name: backup_service
+    network_mode: host
 
+    volumes:
+      - /root/tests:/mnt/backup
+
+    environment:
+      PBS_SERVER: ${PBS_SERVER}
+      PBS_DATASTORE: ${PBS_DATASTORE}
+      PBS_BACKUP_ID: ${PBS_BACKUP_ID}
+      PBS_PASSWORD: ${PBS_PASSWORD}
+      PBS_FINGERPRINT: ${PBS_FINGERPRINT}
+      PBS_PRUNE: ${PBS_PRUNE}
+      PBS_PRUNE_ARGS: ${PBS_PRUNE_ARGS}