backup-automation/portainer/portainer-backup.sh

#!/bin/bash
SCRIPT_ABS_LOCATION=$(realpath "$(dirname "${0}")")

# shellcheck disable=SC1090
source "$SCRIPT_ABS_LOCATION/portainer-backup.env"

# shellcheck disable=SC1090
source "$SCRIPT_ABS_LOCATION/../logger.sh"

# Container Names 
APP_CONTAINER="portainer"
BACKUP_CONTAINER="duplicati"   

# shellcheck disable=SC2034
LOG_FILE="$SCRIPT_ABS_LOCATION/portainer-backup.log"

SOURCE_DIR="/volumes/portainer"

# Stop portainer container 
log "Stopping portainer container..."
docker stop $APP_CONTAINER || { log "Error: Failed to stop portainer."; exit 1; }

# Backup all files to target destination
log "Backing up portainer files (including the SQLite database)..."
docker exec "$BACKUP_CONTAINER" \
	duplicati-cli backup \
	"ssh://$BACKUP_DESTINATION" \
	"$SOURCE_DIR" \
	--backup-name="portainer backup" \
  --keep-versions=7 \
	--auth-username="$SFTP_USERNAME" \
	--auth-password="$SFTP_PASSWORD" \
	--passphrase="$BACKUP_ENCR_PASSPHRASE" \
	--ssh-fingerprint="$SFTP_FINGERPRINT" \
	--prefix="portainer" || { log "Error: Failed to backup portainer files and database."; exit 1; }

# Turn off Maintenance Mode
log "Starting portainer container..."
docker start "$APP_CONTAINER" || { log "Error: Failed to start portainer container."; exit 1; }

log "portainer backup completed successfully."