Add local weather caching mechanism

.ebextensions/mongodb.config

@@ -0,0 +1,27 @@
+files:
+  "/home/ec2-user/install_mongo.sh" :
+    mode: "0007555"
+    owner: root
+    group: root
+    content: |
+      #!/bin/bash
+      echo "[MongoDB]
+      name=MongoDB Repository
+      baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64
+      gpgcheck=0
+      enabled=1" | tee -a /etc/yum.repos.d/mongodb.repo
+      yum -y update
+      yum -y install mongodb-org-server mongodb-org-shell mongodb-org-tools
+
+commands:
+  01install_mongo:
+    command: ./install_mongo.sh
+    cwd: /home/ec2-user
+    test: '[ ! -f /usr/bin/mongo ] && echo "MongoDB not installed"'
+
+services:
+  sysvinit:
+    mongod:
+      enabled: true
+      ensureRunning: true
+      commands: ['01install_mongo']