Add k8s image.

.gitlab-ci.yml

@@ -89,3 +89,20 @@ push-hugo:
   needs:
     - job: build-hugo
       artifacts: true
+
+# k8s image:
+
+build-k8s:
+  extends: .container-build
+  variables:
+    CONTEXT: images/k8s
+
+push-k8s:
+  extends: .container-push
+  variables:
+    CONTEXT: images/k8s
+    IMAGE: ci-images
+    TAG: k8s
+  needs:
+    - job: build-k8s
+      artifacts: true

images/k8s/.dockerignore

+*

images/k8s/Dockerfile

+FROM registry.hub.docker.com/library/golang:alpine3.14 as kind
+RUN GO111MODULE=on go get sigs.k8s.io/kind@v0.11.1
+
+FROM registry.hub.docker.com/library/alpine:3.14
+COPY --from=kind /go/bin/kind /usr/local/bin/
+# hadolint ignore=DL3018
+RUN apk add --update --no-cache --repository http://dl-cdn.alpinelinux.org/alpine/edge/testing/ \
+        helm \
+        kubectl \
+    && \
+    apk add --update --no-cache \
+        docker-cli \
+    ;