what does this give us from a CI perspective?

.gitlab-ci.yml

@@ -0,0 +1,26 @@
+# use the official gcc image, based on debian
+# can use verions as well, like gcc:5.2
+# see https://hub.docker.com/_/gcc/
+image: gcc
+
+build:
+  stage: build
+  # instead of calling g++ directly you can also use some build toolkit like make
+  # install the necessary build tools when needed
+  # before_script: 
+    - apt update && apt -y install build-essential cmake git
+  script: 
+    - whois
+  # artifacts:
+    # paths:
+      # - mybinary
+  # depending on your build setup it's most likely a good idea to cache outputs to reduce the build time
+  # cache:
+  #   paths:
+  #     - "*.o"
+
+# run tests using the binary built before
+test:
+  stage: test
+  script:
+    - whois