golang in dind

.gitlab-ci.yml

stages:
- install
- test
- build

before_script:
# Prepare git by added private ssh key
- 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'
- eval $(ssh-agent -s)
- echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
- mkdir -p ~/.ssh
- chmod 700 ~/.ssh
- echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config

# Prepare git for use private gitlab repository
- git config --global --add url."git@gitlab.com:".insteadOf "https://gitlab.com/"

# Install golang dep package and back to project path
- curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
- cp -r . $GOPATH/src/$CI_PROJECT_NAME
- cd $GOPATH/src/$CI_PROJECT_NAME

install:
  stage: install
  image: golang:$GOLANG_VERSION
  script:
  - cd $CI_PROJECT_NAME
  - dep ensure

test:
  stage: test
  image: golang:$GOLANG_VERSION
  script:
  - cd $CI_PROJECT_NAME
  - dep ensure

# Install Dgraph database
  - curl https://get.dgraph.io -sSf | bash
  - dgraph zero &
  - dgraph server --lru_mb 2048 --zero localhost:5080 &
  - dgraph-ratel &

# Run unit and integration tests if it needed
  - go test ./... -v -cover

build:
  stage: build
  image: docker:latest
  services:
  - docker:dind
  variables:
    DOCKER_DRIVER: overlay2
  before_script:
# Prepare git by added private ssh key
  - apk add --no-cache openssh git
  - eval $(ssh-agent -s)
  - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
  - mkdir -p ~/.ssh
  - chmod 700 ~/.ssh
  - echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config
  
# Prepare git for use private gitlab repository
  - git config --global --add url."git@gitlab.com:".insteadOf "https://gitlab.com/"

# Install go and other packages
  - apk add --no-cache --virtual .build-deps bash gcc musl-dev openssl curl go
  - go version
  - go env

  - export GOPATH=/builds/$CI_PROJECT_NAMESPACE
  - mkdir $GOPATH/bin
  - export PATH=$PATH:$GOPATH/bin

# Move project to right place
  - mkdir $GOPATH/src
  - cp -r . $GOPATH/src/$CI_PROJECT_NAME
  - cd $GOPATH/src/$CI_PROJECT_NAME
  script:
# Install golang dep tool
  - curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh

# Get packages with dep tool
  - cd $CI_PROJECT_NAME
  - dep ensure
  - cd ..

# Login for docker repository
  - docker version
  - docker login --username=$CI_REGISTRY_USER --password=$CI_REGISTRY_PASSWORD $CI_REGISTRY
  
# Change image name int yaml for buld
  - go get github.com/mikefarah/yq
  - cd $GOPATH/src/github.com/mikefarah/yq
  - go install
  
  - cd $GOPATH/src/$CI_PROJECT_NAME

  - yq w -i $CI_PROJECT_NAME.yml functions.$CI_PROJECT_NAME.image $CI_REGISTRY_IMAGE

# Install OpenFaasCLI
  - curl -sSL https://cli.openfaas.com | sh
  
# Build docker function image
  - faas-cli build -f ./$CI_PROJECT_NAME.yml
  
# Push new image to docker repository
  - docker push $CI_REGISTRY/$CI_REGISTRY_IMAGE
  only:
  - master