Redis

Simplest container with redis looks like this:

containers:
  redis:
    setup:
    - !Alpine v3.5
    - !Install [redis]

commands:

  server: !Command
    container: redis
    run: "redis-server --daemonize no"

  cli: !Command
    container: redis
    run: [redis-cli]

Here is more comprehensive example of redis installed on ubuntu and has two instances started in parallel:

#
# Sample Vagga config for installing and running Redis Server v3.0
# in Ubuntu xenial box.
#

containers:
  ubuntu:
    setup:
    - !Ubuntu xenial
    - !UbuntuUniverse
    - !Sh apt-key adv --keyserver keyserver.ubuntu.com --recv-keys C7917B12
    - !UbuntuRepo
      url: http://ppa.launchpad.net/chris-lea/redis-server/ubuntu
      suite: xenial
      components: [main]
    - !Install
      - redis-server
    environ:
      REDIS_PORT1: 6380
      REDIS_PORT2: 6381

commands:

  redis-server: !Command
    description: Run instance of Redis server
    container: ubuntu
    run: |
      redis-server --daemonize no --port $REDIS_PORT1 --logfile "" --loglevel debug

  cluster: !Supervise
    description: Run 2 instances of redis in cluster mode and provide redis-cli
    mode: stop-on-failure
    kill-unresponsive-after: 1
    children:
      redis1: !Command
        container: ubuntu
        run: |
          redis-server --daemonize no \
            --port $REDIS_PORT1 \
            --cluster-enabled yes \
            --cluster-config-file /tmp/cluster.conf \
            --logfile /work/redis-node-1.log \
            --dir /tmp \
            --appendonly no

      redis2: !Command
        container: ubuntu
        run: |
          redis-server --daemonize no \
            --port $REDIS_PORT2 \
            --cluster-enabled yes \
            --cluster-config-file /tmp/cluster.conf \
            --logfile /work/redis-node-2.log \
            --dir /tmp \
            --appendonly no

      meet-nodes: !Command
        container: ubuntu
        run: |
          until [ "$(redis-cli -p $REDIS_PORT1 ping 2>/dev/null)" ]; do sleep 1; done;
          until [ "$(redis-cli -p $REDIS_PORT2 ping 2>/dev/null)" ]; do sleep 1; done;
          redis-cli -p $REDIS_PORT1 CLUSTER MEET 127.0.0.1 $REDIS_PORT2;
          redis-cli -p $REDIS_PORT1;