Build Docker image by Packer

How to run

Install Docker and Packer on the machine and execute the following command.

$ packer validate sample-app.json
$ packer build -var 'version=v1.0.0' \
	-var 'jdk7-base-image-version=v1.0.0' \
	-var 'app_destination=/app' \
	-var 'app_binary_url=https://github.com/mohitarora/coreos-vagrant/raw/master/application/dropwizard-sample-1.0-SNAPSHOT.jar' \
	-var 'app_conf_url=https://raw.githubusercontent.com/mohitarora/coreos-vagrant/master/application/sample.yml' \
	sample-app.json

Once packer creates a docker container, ansible is used to provision the container. Once container is provisioned an image is created and pushed to docker index.

Ansible

Ansible command that packer runs inside docker container

$ ansible-playbook {{.PlaybookFile}} -c local -i "127.0.0.1,"