Add env.sh script to collect running env info.

scripts/env.sh

+#!/usr/bin/env bash
+
+###############################################################################
+# Copyright 2017 The Apollo Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+###############################################################################
+
+if [ -f /.dockerenv ]; then
+    APOLLO_IN_DOCKER=true
+else
+    APOLLO_IN_DOCKER=false
+fi
+
+if $APOLLO_IN_DOCKER; then
+  set -x
+  uname -a
+  pip list
+  env
+else
+  set -x
+  uname -a
+  docker --version
+  docker images | grep apollo
+fi