Merge branch 'master' of https://git.mylab.th-luebeck.de/cloud-native/lab-rest

.gitlab-ci.yml

+stages:
+    - prepare
+    - build
+    - deploy
+    - delete
+
+secrets:
+  stage: prepare
+  script:
+    - kubectl delete secret gitlab-registry-credentials || true
+    - "kubectl create secret docker-registry gitlab-registry-credentials \
+          --docker-server=$CI_REGISTRY \
+          --docker-username=image-registry \ 
+          --docker-password=$REGISTRY_READ_TOKEN \ 
+      "
+
+container:
+  stage: prepare
+  image:
+      name: gcr.io/kaniko-project/executor:debug
+      entrypoint: [""]
+  only:
+      changes:
+      - .gitlab-ci.yml
+      - api/*
+      - api/*/*
+  script:
+      - mkdir -p /kaniko/.docker
+      - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
+      - /kaniko/executor --context api --destination $CI_REGISTRY_IMAGE/api:latest