Update to Python 3

Add images for Node 10, 12 and 13

.gitlab-ci.yml

@@ -8,3 +8,27 @@ node-8:
     - docker push $CI_REGISTRY_IMAGE:8-jessie-slim
   only:
     - master
+
+node-10:
+  stage: build
+  script:
+    - docker build --pull --build-arg NODE_VERSION=10-jessie-slim -t $CI_REGISTRY_IMAGE:10-jessie-slim .
+    - docker push $CI_REGISTRY_IMAGE:10-jessie-slim
+  only:
+    - master
+
+node-12:
+  stage: build
+  script:
+    - docker build --pull --build-arg NODE_VERSION=12-jessie-slim -t $CI_REGISTRY_IMAGE:12-jessie-slim .
+    - docker push $CI_REGISTRY_IMAGE:12-jessie-slim
+  only:
+    - master
+
+node-13:
+  stage: build
+  script:
+    - docker build --pull --build-arg NODE_VERSION=13-jessie-slim -t $CI_REGISTRY_IMAGE:13-jessie-slim .
+    - docker push $CI_REGISTRY_IMAGE:13-jessie-slim
+  only:
+    - master

Dockerfile

-FROM node:8-jessie-slim
+ARG NODE_VERSION
+
+FROM node:${NODE_VERSION}
 
 LABEL com.example.vendor="LakeDrops" \
       maintainer="juergen.haas@lakedrops.com" \
       description="Node container with build tools included."
 
 RUN apt-get update -y && \
-    apt-get install -y -q python make g++ && \
+    apt-get install -y -q python3 make g++ && \
     \
     apt-get clean && \
     rm -rf /root/.cache && \