feat(dockerfiles/cd/builders): add builder image for tidb-operator

dockerfiles/cd/builders/skaffold.yaml

@@ -233,6 +233,12 @@ build:
         dockerfile: tidb-dashboard/Dockerfile
         cache: {}
         target: builder
+    - image: tidb-operator
+      platforms: [linux/amd64, linux/arm64]
+      kaniko:
+        dockerfile: tidb-operator/Dockerfile
+        cache: {}
+        target: builder
   cluster:
     concurrency: 0
     randomDockerConfigSecret: false
@@ -253,6 +259,7 @@ profiles:
         tryImportMissing: true
     patches:
       - { op: move, from: /build/artifacts/0/kaniko, path: /build/artifacts/0/docker }
+      - { op: move, from: /build/artifacts/1/kaniko, path: /build/artifacts/1/docker }
 ---
 apiVersion: skaffold/v4beta6
 kind: Config

dockerfiles/cd/builders/tidb-operator/Dockerfile

@@ -0,0 +1,31 @@
+# build requires:
+#   - docker >= v20.10
+#
+# build steps:
+#   - git clone https://github.com/pingcap/tidb-operator.git tidb 
+#   - rm tidb-operator/.dockerignore # make step depended on git metadata.
+#   - docker build -t tidb-operator -f Dockerfile ./tidb-operator
+
+########### stage: Builder
+ARG GOLANG_VERSION=1.21.12
+FROM golang:${GOLANG_VERSION} as builder
+
+# install packages.
+RUN --mount=type=cache,target=/var/cache/apt \
+    apt-get update && apt-get install -y uuid-runtime
+
+LABEL go-version="${GOLANG_VERSION}"
+
+########### stage: Buiding
+FROM builder as building
+COPY . /ws
+ARG GOPROXY
+RUN GOPROXY=${GOPROXY} make build -C /ws && mv /ws/images/tidb-operator/bin/$(arch) /ws/bin
+
+########### stage: Final image
+FROM ghcr.io/pingcap-qe/bases/tidb-base:v1.9.0
+
+COPY --from=building /ws/bin/tidb-scheduler /usr/local/bin/tidb-scheduler
+COPY --from=building /ws/bin/tidb-discovery /usr/local/bin/tidb-discovery
+COPY --from=building /ws/bin/tidb-controller-manager  /usr/local/bin/tidb-controller-manager
+COPY --from=building /ws/bin/tidb-admission-webhook /usr/local/bin/tidb-admission-webhook