remove old Amazon EC2-related things since no one should ever deploy a mail...

remove old Amazon EC2-related things since no one should ever deploy a mail server to EC2 (IPs have bad reputation)

ec2/README.md

-Deploying to EC2
-================
-
-Amazon's EC2 isn't a great place to host a mail server. For one, you don't know if you'll get an IP address with a bad reputation from its previous owner. Also, setting reverse DNS requires a special request. But EC2 makes deployment easy, so it may at least be useful for testing.
-
-Instructions
-------------
-
-Sign up for Amazon Web Services.
-
-Create an Access Key at https://console.aws.amazon.com/iam/home?#security_credential. Download the key and save the information somewhere secure.
-
-Set up your environment and paste in the two parts of your access key that you just downloaded: 
-
-	sudo apt-get install ec2-api-tools
-
-	export AWS_ACCESS_KEY=your_access_key_id
-	export AWS_SECRET_KEY=your_secret_key
-	export EC2_URL=ec2.us-east-1.amazonaws.com
-	export AWS_AZ=us-east-1a
-	
-Here we're using the Ubuntu 13.04 amd64 instance-store-backed AMI in the us-east region. You can select another at http://cloud-images.ubuntu.com/locator/ec2/.
-
-Generate a new "keypair" (if you don't have one) that will let you SSH into your machine after you start it:
-
-	ec2addkey mykey > mykey.pem
-	chmod go-rw mykey.pem
-
-Then launch a new instance. We're creating a m1.small instance --- it's the smallest instance that can use an instance-store-backed AMI. So charges will start to apply.
-
-	source ec2/start_instance.sh
-
-It will wait until the instance is available.
-
-You'll probably want to associate it with an Elastic IP. If you do, you'll need to update the INSTANCE_IP variable.
-	
-Log into the server:
-
-	ssh -i mykey.pem ubuntu@$INSTANCE_IP
-
-Then follow the instructions in the main README.
-
-If you were just testing and are ready to destroy your instance (and all data), run:
-
-	ec2-terminate-instances $INSTANCE
-
-

ec2/new_volume.sh

-export VOLUME_SIZE=1 # in GiB (2^30 bytes)
-ec2-create-volume -s $VOLUME_SIZE -z $AWS_AZ > volume.info
-export VOLUME_ID=`cat volume.info |  awk {'print $2'}`
-export VOLUME_IS_NEW=1
-echo Created new volume: $VOLUME_ID
-

ec2/start_instance.sh

-if [ -z "$EC2_KEYPAIR_NAME" ]; then
-	EC2_KEYPAIR_NAME=mykey
-fi
-
-UBUNTU_CONFIG="us-east-1 13.04 amd64 instance-store"
-
-export AMI=`curl -s http://cloud-images.ubuntu.com/locator/ec2/releasesTable | python3 tools/get_ubuntu_ami.py $UBUNTU_CONFIG`
-
-ec2-create-group -d "mailinabox" "mailinabox"
-for PORT in 25 53 587 993; do ec2-authorize mailinabox -P tcp -p $PORT -s 0.0.0.0/0; done
-for PORT in 53; do ec2-authorize mailinabox -P udp -p $PORT -s 0.0.0.0/0; done
-
-ec2run $AMI -k $EC2_KEYPAIR_NAME -t m1.small -z $AWS_AZ -g mailinabox > instance.info
-export INSTANCE=`cat instance.info | grep INSTANCE | awk {'print $2'}`
-
-echo Started instance $INSTANCE
-
-sleep 5
-while [ 1 ]
-do
-    export INSTANCE_IP=`ec2-describe-instances $INSTANCE | grep INSTANCE | awk {'print $14'}`
-    if [ -z "$INSTANCE_IP" ]
-    then
-		echo "Waiting for $INSTANCE to start..."
-    else
-		break
-    fi
-    sleep 6
-done
-
-# Give SSH time to start.
-sleep 5
-
-echo New instance has IP: $INSTANCE_IP
-

tools/get_ubuntu_ami.py

-import sys, json, re
-
-# Arguments:
-region, version, arch, instance_type = sys.argv[1:]
-
-# Read bytes from stdin.
-dat = sys.stdin.read()
-
-# Be flexible. The Ubuntu AMI list is invalid JSON by having a comma
-# following the last element in a list.
-dat = re.sub(r",(\s*)\]", r"\1]", dat)
-
-# Parse JSON.
-dat = json.loads(dat)
-
-for item in dat["aaData"]:
-	if item[0] == region and item[2] == version and item[3] == arch and item[4] == instance_type:
-		ami_link = item[6]
-		
-		# The field comes in the form of <a href="...">ami-id</a>
-		ami_link = re.sub(r"<.*?>", "", ami_link)
-		
-		print(ami_link)
-		break
-		
-