Build Docker image in CI

.gitlab-ci.yml

-image: alpine:latest
+image: quay.io/buildah/stable:latest
 
-variables:
-  GIT_SUBMODULE_STRATEGY: recursive
-
-pages:
-  stage: deploy
+default:
   before_script:
-  - apk add --update-cache --repository http://dl-cdn.alpinelinux.org/alpine/edge/community/ zola
-  - apk add yarn
-  - yarn install
+    - buildah login -u gitlab-ci-token -p ${CI_JOB_TOKEN} ${CI_REGISTRY}
+
+build:
   script:
-  - zola build
-  - cp _redirects public/
-  artifacts:
-    paths:
-    - public/
-  only:
-  - master
+    - buildah bud -t teckids.org:latest
+  interruptible: true
+  retry: 1
+
+deploy:
+  script:
+    - buildah push
+