Adding AWS code deploy files

- app spec file forms basis of application deploy
- various AWS specific files to install dependencies and call upstart for start and stop application

appspec.yml

@@ -0,0 +1,23 @@
+---
+files:
+  -
+    destination: /home/ubuntu/notifications-api
+    source: /
+hooks:
+  AfterInstall:
+    -
+      location: scripts/aws_install_dependencies.sh
+      runas: root
+      timeout: 300
+  ApplicationStart:
+    -
+      location: scripts/aws_start_app.sh
+      runas: root
+      timeout: 300
+  ApplicationStop:
+    -
+      location: scripts/aws_stop_app.sh
+      runas: root
+      timeout: 300
+os: linux
+version: 0.0

scripts/aws_install_dependencies.sh

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+pip install -r /home/ubuntu/notifications-api/requirements.txt

scripts/aws_start_app.sh

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+#!/bin/bash
+
+echo "Starting application"
+cd ~/notifications-api/;
+sudo service notifications-api start

scripts/aws_stop_app.sh

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+#!/bin/bash
+
+echo "Stopping application"
+cd ~/notifications-api/;
+sudo service notifications-api stop