try to open docker rather than failing the setup script (#1151)

* try to open docker rather than failing

* allow non-docker users to launch whatever it is they're using

packages/dev-environment/script/start

@@ -9,6 +9,7 @@ MAIN_ENV_FILE=$ROOT_DIR/.env
 LOCAL_ENV_FILE=$HOME/.gu/service_catalogue/.env.local
 clear='\033[0m'
 cyan='\033[0;36m'
+yellow="\033[1;33m"
 
 step() {
   ((STEP_COUNT++))
@@ -23,9 +24,9 @@ create_sql_migrations() {
   rm -rf "$SQL_DIR"
   mkdir -p "$SQL_DIR"
 
-  MIGRATIONS=$(ls -d $ROOT_DIR/packages/common/prisma/migrations/*/)
+  MIGRATIONS=$(ls -d "$ROOT_DIR"/packages/common/prisma/migrations/*/)
   for MIGRATION in $MIGRATIONS; do
-    cp $MIGRATION/migration.sql $SQL_DIR/$(basename $MIGRATION).sql;
+    cp "$MIGRATION"/migration.sql "$SQL_DIR"/$(basename "$MIGRATION").sql;
   done
 }
 
@@ -46,13 +47,21 @@ check_aws_credentials() {
 
 start_containers() {
   step "Launching Docker containers"
-
-  if (docker info) 2>&1 >/dev/null; then
-    docker-compose -f "${DIR}/../docker-compose.yaml" --env-file "$MAIN_ENV_FILE" --env-file "$LOCAL_ENV_FILE" up -d --build
-  else
-    echo "Docker is not running. Please start Docker."
-    exit 1
-  fi
+
+  set +e
+  open -a Docker
+  set -e
+
+while (! docker stats --no-stream ); do
+  # Docker takes a few seconds to initialize
+  sleep 5
+  echo -e "${yellow}Do you have an alternative Docker install, such as podman or minikube, aliased to 'docker'? If so, please launch it now${clear}"
+  echo "Standing by for Docker to start..."
+  echo ""
+done
+
+docker-compose -f "${DIR}/../docker-compose.yaml" --env-file "$MAIN_ENV_FILE" --env-file "$LOCAL_ENV_FILE" up -d --build
+
 }
 
 check_vpn_connection() {