Recover running Docker containers as Dockge stacks

recover-stacks.sh

#!/bin/bash
# Recover running containers as Dockge stacks

STACKS_DIR="${1:-/share/Container/stacks}"
mkdir -p "$STACKS_DIR"

# Get all running containers (excluding dockge itself)
containers=$(docker ps --format '{{.Names}}' | grep -v dockge)

for container in $containers; do
  # Extract stack name (remove -1, -2 suffixes from compose)
  stack_name=$(echo "$container" | sed 's/-[0-9]*$//' | sed 's/_/-/g')
  stack_dir="$STACKS_DIR/$stack_name"

  # Skip if we already created this stack
  if [ -d "$stack_dir" ]; then
    echo "Skipping $container (stack $stack_name already exists)"
    continue
  fi

  echo "Processing: $container -> $stack_name"
  mkdir -p "$stack_dir"

  # Get container inspect data
  inspect=$(docker inspect "$container")

  # Extract key values
  image=$(echo "$inspect" | jq -r '.[0].Config.Image')

  # Get port mappings
  ports=$(echo "$inspect" | jq -r '.[0].NetworkSettings.Ports | to_entries | .[] | select(.value != null) | .value[0].HostPort + ":" + .key' | sed 's/\/tcp//' | sed 's/\/udp/:udp/')

  # Get volume mounts
  mounts=$(echo "$inspect" | jq -r '.[0].Mounts[] | select(.Type == "bind") | .Source + ":" + .Destination')

  # Get environment variables (excluding PATH and common defaults)
  envs=$(echo "$inspect" | jq -r '.[0].Config.Env[] | select(startswith("PATH=") | not) | select(startswith("HOME=") | not) | select(startswith("HOSTNAME=") | not)')

  # Get restart policy
  restart=$(echo "$inspect" | jq -r '.[0].HostConfig.RestartPolicy.Name')
  [ "$restart" = "no" ] && restart=""

  # Build compose file
  cat > "$stack_dir/compose.yaml" << EOF
services:
  $stack_name:
    image: $image
    container_name: $container
EOF

  # Add restart policy
  if [ -n "$restart" ] && [ "$restart" != "null" ]; then
    echo "    restart: $restart" >> "$stack_dir/compose.yaml"
  fi

  # Add ports
  if [ -n "$ports" ]; then
    echo "    ports:" >> "$stack_dir/compose.yaml"
    echo "$ports" | while read -r port; do
      [ -n "$port" ] && echo "      - \"$port\"" >> "$stack_dir/compose.yaml"
    done
  fi

  # Add volumes
  if [ -n "$mounts" ]; then
    echo "    volumes:" >> "$stack_dir/compose.yaml"
    echo "$mounts" | while read -r mount; do
      [ -n "$mount" ] && echo "      - $mount" >> "$stack_dir/compose.yaml"
    done
  fi

  # Add environment
  if [ -n "$envs" ]; then
    echo "    environment:" >> "$stack_dir/compose.yaml"
    echo "$envs" | while read -r env; do
      [ -n "$env" ] && echo "      - $env" >> "$stack_dir/compose.yaml"
    done
  fi

  echo "  Created: $stack_dir/compose.yaml"
done

echo ""
echo "Done! Restart Dockge to see recovered stacks:"
echo "  docker restart dockge"