docker upstart example

gistfile1.txt

[Unit]
Description=Documentation for my app
After=docker.service
Requires=docker.service

[Service]
TimeoutStartSec=0
Environment="PROJECT_API_URL=https://path.to.place.com"
ExecStartPre=-/usr/bin/docker kill myapp
ExecStartPre=-/usr/bin/docker rm myapp
ExecStartPre=-/usr/bin/docker pull quay.io/will_ob/myrepo:production-current
ExecStart=/bin/bash -c "/usr/bin/docker run -P \
                          --name myapp \
                          -e PROJECT_API_URL=$PROJECT_API_URL \
                          quay.io/will_ob/myrepo:production-current"
ExecStop=/usr/bin/docker stop myapp

[Install]
WantedBy=multi-user.target