Added fabfile to install docker on aws

deploy-cluster-aws/fabfile-monitor.py

@@ -0,0 +1,37 @@
+from fabric.api import sudo, env
+from fabric.api import task
+
+# Ignore known_hosts
+# http://docs.fabfile.org/en/1.10/usage/env.html#disable-known-hosts
+env.disable_known_hosts = True
+
+env.user = 'ubuntu'
+env.key_filename = 'pem/bigchaindb.pem'
+
+
+@task
+def install_docker():
+    """Install docker on an ec2 ubuntu 14.04 instance
+
+    Example:
+        fab --fabfile=fabfile-monitor.py \
+            --hosts=ec2-52-58-106-17.eu-central-1.compute.amazonaws.com \
+            install_docker
+    """
+
+    # install prerequisites
+    sudo('apt-get update')
+    sudo('apt-get -y install apt-transport-https ca-certificates linux-image-extra-$(uname -r) apparmor')
+
+    # install docker repositories
+    sudo('apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 \
+          --recv-keys 58118E89F3A912897C070ADBF76221572C52609D')
+    sudo("echo 'deb https://apt.dockerproject.org/repo ubuntu-trusty main' | \
+          sudo tee /etc/apt/sources.list.d/docker.list")
+
+    # install docker engine
+    sudo('apt-get update')
+    sudo('apt-get -y install docker-engine')
+
+    # add ubuntu user to the docker group
+    sudo('usermod -aG docker ubuntu')