Consul support on Travis-CI

consul travis.yml

sudo: false
env:
  global:
    - CONSUL_VERSION=0.5.0
    - CONSUL_DC=dev1
    - CONSUL_DIR=$HOME/consul_$CONSUL_VERSION
before_script:
  - 'if [[ ! -f $CONSUL_DIR/consul ]]; then (mkdir -p $CONSUL_DIR && cd $CONSUL_DIR && wget https://dl.bintray.com/mitchellh/consul/${CONSUL_VERSION}_linux_amd64.zip && unzip ${CONSUL_VERSION}_linux_amd64.zip); fi'
  - $CONSUL_DIR/consul --version
  - $CONSUL_DIR/consul agent -server -bootstrap-expect 1 -data-dir /tmp/consul -dc=$CONSUL_DC &
  # Wait for consul to elect itself as leader
  - sleep 5
cache:
  directories:
    - $CONSUL_DIR