A CloudFormation template in YAML format based on the excellent WordPress template by widdix.
Before usage, first convert from YAML to JSON which can be done in variety of ways, this is just one example in Python to get you going:
#!/bin/bash
python -c 'import sys, yaml, json; json.dump(yaml.load(sys.stdin), sys.stdout, indent=2)' < $1.yaml > $1.json
Simply store in an executable shell script and run as:
yaml2json wordpress
Easy..