Enable multiple threads/workers in entrypoint.sh

Change-Id: Ic1d969edcde775aa715719aa03a91fbca9830d13

entrypoint.sh

@@ -1,12 +1,45 @@
 #!/bin/bash
+#
+# Copyright 2017 AT&T Intellectual Property.  All other 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.
+
+set -ex
 
 CMD="armada"
-PORT="8000"
 
-set -e
+# Define port
+PORT=${PORT:-9000}
+# How long uWSGI should wait for each Armada response
+ARMADA_API_TIMEOUT=${ARMADA_API_TIMEOUT:-"3600"}
+# Number of uWSGI workers to handle API requests
+ARMADA_API_WORKERS=${ARMADA_API_WORKERS:-"4"}
+# Threads per worker
+ARMADA_API_THREADS=${ARMADA_API_THREADS:-"1"}
 
+# Start Armada application
+# TODO(fmontei): Should be specifying callable too. But Armada spins up the
+# server during import in `armada.api.server`.
 if [ "$1" = 'server' ]; then
-    exec uwsgi --http :${PORT} --http-timeout 3600 --paste config:/etc/armada/api-paste.ini --enable-threads -L --pyargv "--config-file /etc/armada/armada.conf"
+    exec uwsgi \
+        --http :${PORT} \
+        --http-timeout $ARMADA_API_TIMEOUT \
+        --enable-threads \
+        -L \
+        --paste config:/etc/armada/api-paste.ini \
+        --pyargv "--config-file /etc/armada/armada.conf" \
+        --threads $ARMADA_API_THREADS \
+        --workers $ARMADA_API_WORKERS
 else
     exec $CMD "$@"
 fi