mayfield/ecsextender

Docker env for ECS bootstrap of odyssey cluster

ecsextender

Extend an ECS cluster instance with Consul and other goodies.

Example user-data

The use of this container is to run consul and some other goodies on an AWS ECS optimized AMI. Your autoscaling group should use this user-data for proper operation.

#!/bin/bash -x

echo "EFS=efs.region.amazonaws.com" > /etc/sysconfig/efs

cat >> /etc/rc.local <<EOF

docker pull homecu/ecsextender
docker run \
    --net host \\
    --privileged \\
    -v /var/run/docker.sock:/var/run/docker.sock \\
    -v /:/hostroot \\
    homecu/ecsextender

if [ \$? -eq 3 ] ; then
  reboot
fi

EOF

ENV Overrides

Some options can be enabled or customized with environment variables placed in the above instance user-data. For example...

#!/bin/bash -x
cat >> /etc/rc.local <<EOF

docker pull homecu/ecsextender
docker run --net host \\
    -v /var/run/docker.sock:/var/run/docker.sock \\
    -v /:/hostroot \\
    --privileged \\
    -e OPTIONAL_ENV_ARG=somevalue \\
    homecu/ecsextender
if [ \$? -eq 3 ] ; then
  reboot
fi

EOF

Supported ENV switches

1. ELASTICSEARCH_URL - Centralize logging to an elasticsearch service. Example value: http://search-foo-bar.us-west-2.es.amazonaws.com
2. ELASTICSEARCH_GELF_INDEX - Elasticsearch index for gelf logging. Eg. logging
3. ELASTICSEARCH_GELF_TYPE - Elasticsearch type column for gelf logging. Eg. docker
4. ELASTICSEARCH_TCPJSON_INDEX - Elasticsearch index for tcpjson logging. Eg. statistics
5. ELASTICSEARCH_TCPJSON_TYPE - Elasticsearch type column for tcpjson logging. Eg. docker