docker-entrypoint.sh

#!/usr/bin/env sh
set -eu

# If the user supplied args, respect them (advanced usage)
if [ "$#" -gt 0 ]; then
  case "$1" in
    -*)
      # User passed flags directly
      exec dragonfly "$@"
      ;;
    dragonfly|*/dragonfly)
      # User invoked dragonfly explicitly
      exec "$@"
      ;;
    *)
      # User passed arbitrary command - reject to avoid confusion
      echo "ERROR: Unrecognized command '$1'. Use dragonfly flags or leave empty for auto-config." >&2
      exit 1
      ;;
  esac
fi

# Defaults from env (see README for documentation)
LOGTOSTDERR="${LOGTOSTDERR:-true}"
DIR_ENV="${DIR:-}"
S3_BUCKET_URL="${S3_BUCKET_URL:-}"
DF_DIR="${DF_DIR:-/data}"
SNAPSHOT_CRON="${SNAPSHOT_CRON:-}"
DBFILENAME="${DBFILENAME:-dump-{timestamp}}"
S3_ENDPOINT="${S3_ENDPOINT:-}"
S3_USE_HTTPS="${S3_USE_HTTPS:-true}"
S3_SIGN_PAYLOAD="${S3_SIGN_PAYLOAD:-true}"
S3_EC2_METADATA="${S3_EC2_METADATA:-false}"
VMODULE="${VMODULE:-}"

# Build argument vector safely
set -- dragonfly

if [ "$LOGTOSTDERR" = "true" ]; then
  set -- "$@" --logtostderr
fi

# Determine dir: prefer S3_BUCKET_URL, then DIR env, else fallback to DF_DIR
if [ -n "$S3_BUCKET_URL" ]; then
  set -- "$@" --dir "$S3_BUCKET_URL"
else
  if [ -n "$DIR_ENV" ]; then
    set -- "$@" --dir "$DIR_ENV"
  else
    set -- "$@" --dir "$DF_DIR"
  fi
fi

if [ -n "$SNAPSHOT_CRON" ]; then
  set -- "$@" --snapshot_cron "$SNAPSHOT_CRON"
fi

if [ -n "$DBFILENAME" ]; then
  set -- "$@" --dbfilename "$DBFILENAME"
fi

if [ -n "$S3_ENDPOINT" ]; then
  set -- "$@" --s3_endpoint "$S3_ENDPOINT"
fi

set -- "$@" --s3_use_https="$S3_USE_HTTPS"
set -- "$@" --s3_sign_payload="$S3_SIGN_PAYLOAD"
set -- "$@" --s3_ec2_metadata="$S3_EC2_METADATA"

if [ -n "$VMODULE" ]; then
  set -- "$@" --vmodule="$VMODULE"
fi

# Add password if REDIS_PASSWORD is set (for Coolify compatibility)
if [ -n "${REDIS_PASSWORD:-}" ]; then
  set -- "$@" --requirepass "$REDIS_PASSWORD"
fi

# Allow extra flags via whitespace-separated EXTRA_FLAGS
if [ -n "${EXTRA_FLAGS:-}" ]; then
    # Safely append each flag from EXTRA_FLAGS to the argument vector.
  for flag in $EXTRA_FLAGS; do
    set -- "$@" "$flag"
  done
fi

exec "$@"