Merge branch 'add-ci-cd' into 'master'

Add ci cd

See merge request spengreb/atmos!3

.gitlab-ci.yml

@@ -0,0 +1,37 @@
+stages: 
+  - 🤞 test
+  - 🤞 test docker build
+  - 🚀 publish
+
+test:
+  stage: 🤞 test
+  script:
+    - python3 -m unittest
+
+test-docker-build:
+  stage: 🤞 test docker build
+  image: docker:latest
+  services:
+    - docker:dind
+  before_script:
+    - apk add jq curl
+  script:
+    - TERRAFORM_VERSION=$(curl -s https://checkpoint-api.hashicorp.com/v1/check/terraform | jq -r -M '.current_version')
+    - docker build --pull -t "$CI_REGISTRY_IMAGE:$TERRAFORM_VERSION" .
+  except:
+    - master
+
+publish:
+  stage: 🚀 publish
+  image: docker:latest
+  services:
+    - docker:dind  
+  before_script:
+    - apk add jq curl
+    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+  script:
+    - TERRAFORM_VERSION=$(curl -s https://checkpoint-api.hashicorp.com/v1/check/terraform | jq -r -M '.current_version')
+    - docker build --pull -t "$CI_REGISTRY_IMAGE:$TERRAFORM_VERSION" .
+    - docker push "$CI_REGISTRY_IMAGE:$TERRAFORM_VERSION"
+  only:
+    - master