sudo: required
# Trusty distribution is much faster when sudo is required
dist: trusty

services:
  - docker

language: go
go:
  - 1.5
  - 1.6

# In the Travis VM-based build environment, IPv6 networking is not
# enabled by default. The sysctl operations below enable IPv6.
# IPv6 is needed by some of the CoreDNS test cases. The VM environment
# is needed to have access to sudo in the test environment. Sudo is 
# needed to have docker in the test environment. Docker is needed to
# launch a kubernetes instance in the test environment.
# (Dependencies are fun! :) )
before_install:
  - cat /proc/net/if_inet6
  - uname -a
  - sudo bash -c 'if [ `cat /proc/net/if_inet6 | wc -l` = "0" ]; then echo "Enabling IPv6" ; sysctl net.ipv6.conf.all.disable_ipv6=0 ; sysctl net.ipv6.conf.default.disable_ipv6=0 ; sysctl net.ipv6.conf.lo.disable_ipv6=0 ; fi'
  - cat /proc/net/if_inet6
  - env

before_script:
  # Fix repo pathname for golang imports.
  #   When building in a forked repo the import path will be incorrect.
  #   Fix is to detect this case and create a symbolic link for the real import name.
  #   Note: This assumes that both the upstream "real" repo and the fork are hosted
  #         at the same domain. (eg. github.com)
  - ( export UPSTREAM="miekg/coredns" && export REPONAME=`pwd | rev | cut -d "/" -f 1-2 | rev` && test "$REPO" != "$UPSTREAM" && mkdir -p ../../`echo $UPSTREAM | cut -d "/" -f 1` && ln -s ../$REPONAME ../../$UPSTREAM )
  # Download etcd, unpack and launch
  - curl -L  https://github.com/coreos/etcd/releases/download/v2.3.1/etcd-v2.3.1-linux-amd64.tar.gz -o etcd-v2.3.1-linux-amd64.tar.gz
  - tar xzvf etcd-v2.3.1-linux-amd64.tar.gz
  - ./etcd-v2.3.1-linux-amd64/etcd &
  # If docker is available, pull the kubernetes hyperkube image down and launch kubernetes.
  - if which docker &>/dev/null ; then docker pull gcr.io/google_containers/hyperkube-amd64:v1.2.4 ; docker ps -a ; fi
  - if which docker &>/dev/null ; then ./middleware/kubernetes/test/00_run_k8s.sh && ./middleware/kubernetes/test/10_setup_kubectl.sh && ./middleware/kubernetes/test/20_setup_k8s_services.sh ; docker ps -a ; fi
  # Get golang dependencies, and build coredns binary
  - go get -v -d
  - go get github.com/coreos/go-etcd/etcd
  - go build -v -ldflags="-s -w"

script:
  - go test -tags etcd -race -bench=. ./...
  # Run kubernetes integration tests only if kubectl is available. i.e. If kubernetes was launched
  - ./middleware/kubernetes/test/kubectl version && go test -tags k8s -race -bench=. -run 'TestK8sIntegration' ./test