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HAProxy Appliance for AWS

$ openssl req -x509 -nodes -newkey rsa:2048 -keyout key.pem -out cert.pem -days 300
$ cat cert.pem key.pem > haproxy-example.pem
$ sudo pip3 install scm-source && scm-source
$ docker build -t elastic-haproxy .
$ docker run -it -p 8443:443 -p 9090:9090 -v $HOME/.aws:/root/.aws -e AWS_REGION=eu-central-1 -e UPDATE_INTERVAL=3 -e BACKEND_INSTANCES_FILTERS=tag:StackName=mystack -e "HAPROXY_CFG_TEMPLATE=$(cat haproxy_template.cfg | base64)" -e "HAPROXY_PEM=$(cat haproxy-example.pem | base64)" elastic-haproxy

Configuration

The following environment variables are supported:

AWS_REGION
Optional AWS region ID. You don't need to specify this as it's loaded from the EC2 meta data service.
HAPROXY_CFG_TEMPLATE
Filename of haproxy.cfg Jinja2 template or base64 encoded template string.
BACKEND_INSTANCES_FILTERS
Comma separated list of filters to find EC2 instances, e.g. tag:StackName=mystack would find all EC2 instances with a tag "StackName" with value "mystack".
UPDATE_INTERVAL
Update interval in seconds, i.e. how often to query the AWS EC2 API.