app-redis-sk.service

[Unit]
Description=App Redis Sidekick
Requires=docker.service
Requires=etcd.service

After=docker.service
After=etcd.service
After=app-redis.service
BindsTo=app-redis.service

[Service]
EnvironmentFile=/etc/environment
User=core

TimeoutStartSec=0
ExecStart=/bin/bash -c '\
  while true; do \
    port=$(docker inspect --format=\'{{(index (index .NetworkSettings.Ports "6379/tcp") 0).HostPort}}\' app-redis.service); \
    timeout 1 bash -c "cat < /dev/null > /dev/tcp/${COREOS_PRIVATE_IPV4}/\"$port\""; \
    if [ $? -eq 0 ]; then \
      etcdctl set /services/app-redis/dfw ${COREOS_PRIVATE_IPV4}:$port --ttl 10; \
    else \
      etcdctl rm /services/app-redis/dfw; \
    fi; \
    sleep 5; \
    done'

ExecStop=/usr/bin/etcdctl rm /services/app-redis/dfw


[X-Fleet]
MachineOf=app-redis.service

app-redis.service

[Unit]
Description=App Redis
After=docker.service
Requires=docker.service
Requires=app-redis-sk.service

[Service]
EnvironmentFile=/etc/environment

TimeoutStartSec=0
Restart=always
ExecStartPre=-/usr/bin/docker kill %n
ExecStartPre=-/usr/bin/docker rm %n
ExecStartPre=/usr/bin/docker pull redis
ExecStart=/usr/bin/docker run --name %n -p ${COREOS_PRIVATE_IPV4}::6379 redis:latest redis-server --requirepass XYZ1234
ExecStop=/usr/bin/docker stop %n

app@.service

[Unit]
Description=App Service

Requires=docker.service
Requires=etcd.service
Requires=app-sk@%i.service

After=docker.service
After=etcd.service

[Service]
EnvironmentFile=/etc/environment
User=core

Restart=always
TimeoutStartSec=0
ExecStartPre=-/usr/bin/docker kill %p-%i
ExecStartPre=-/usr/bin/docker rm %p-%i
ExecStartPre=/usr/bin/docker pull quay.io/user/app
ExecStart=/usr/bin/docker run --name %p-%i \
      -p ${COREOS_PRIVATE_IPV4}::3000 \
      -e REDIS_PASSWORD=XYZ1234 \
      -e DATACENTER=dfw \
      quay.io/user/app
ExecStop=/usr/bin/docker stop %p-%i

[X-Fleet]
Conflicts=app@*.service

gistfile1.txt

FROM ubuntu:14.04
MAINTAINER Ross Kukulinski "ross@speakit.io"
RUN apt-get -qq update
RUN apt-get -qq install -y python-software-properties software-properties-common curl git build-essential supervisor emacs23-nox nano
RUN add-apt-repository -y ppa:chris-lea/node.js
RUN apt-get -qq update
RUN apt-get -qq install -y nodejs
RUN npm -g install npm
RUN npm -g install bower gulp grunt-cli bunyan

RUN mkdir -p /var/log/supervisor

ENTERYPOINT ["/usr/bin/node", "--version"]