gitlab ci docker build kubernetes deploy

.gitlab-ci.yml

stages:
- build
- kube
variables:
  TEST_IMAGE: yourrepo/yourapp:${CI_BUILD_REF_NAME}_${CI_BUILD_REF}
  RELEASE_IMAGE: yourrepo/yourapp:latest
build:
  stage: build
  script:
    - docker build -t $TEST_IMAGE .
    - docker push $TEST_IMAGE
  tags:
  - shell


kube test:
 stage: kube
 image: behroozam/kube:latest
 script:
 - ls kube/
 - tag=${CI_BUILD_REF_NAME}_${CI_BUILD_REF} envsubst < kube/deplyment-example.yml > kube/deplyment-example-staging.yml
 - kubectl apply -f kube/deplyment-example-staging.yml