Add a minimal-dependencies working example listening to k8s events

eventing/samples/k8s-events/Dockerfile

@@ -0,0 +1,27 @@
+# Copyright 2018 The Knative Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM golang AS builder
+
+WORKDIR /go/src/github.com/knative/docs/
+ADD . /go/src/github.com/knative/docs/
+
+RUN CGO_ENABLED=0 go build ./eventing/samples/k8s-events
+
+FROM gcr.io/distroless/base
+
+COPY --from=builder /go/src/github.com/knative/docs/k8s-events /sample
+
+ENTRYPOINT ["/sample"]
+EXPOSE 8080