CLOUDP-82915: Add Readinessprobe Dockerfile (#339)

Author: chatton

release.json

@@ -1,6 +1,7 @@
 {
   "mongodb-kubernetes-operator": "0.5.0",
   "version-upgrade-hook": "1.0.2",
+  "readiness-probe": "1.0.1",
   "agent": {
     "version": "10.27.0.6772-1",
     "tools_version": "100.2.0"

scripts/dev/dockerfiles/Dockerfile.readiness

@@ -0,0 +1,13 @@
+FROM golang:1.15-alpine as builder
+
+COPY ./cmd/readiness /build/
+COPY ./pkg /build/pkg
+COPY ./api /build/api
+COPY ./go.mod /build/
+
+WORKDIR /build
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=386 go build -a -i -o readinessprobe .
+
+FROM busybox
+
+COPY --from=builder /build/readinessprobe /probes/