Update operator-sdk and Go version

.dockerignore

@@ -0,0 +1,4 @@
+# More info: https://docs.docker.com/engine/reference/builder/#dockerignore-file
+# Ignore build and test binaries.
+bin/
+testbin/

Dockerfile

@@ -1,78 +1,29 @@
-#**********************************************************************
-# Builder
-# Create a go runtime suitable for building and testing kfctl
-ARG GOLANG_VERSION=1.13.7
-FROM golang:$GOLANG_VERSION as builder
-
-ARG BRANCH=master
-ARG REPO=https://github.com/kubeflow/kubeflow
-
-RUN apt-get update
-RUN apt-get install -y git unzip jq vim
-
-# junit report is used to conver go test output to junit for reporting
-RUN go get -u github.com/jstemmer/go-junit-report
-
-# We need gcloud to get gke credentials.
-RUN if [ "$(uname -m)" = "x86_64" ]; then \
-        cd /tmp && \
-        wget -nv https://dl.google.com/dl/cloudsdk/release/install_google_cloud_sdk.bash && \
-        chmod +x install_google_cloud_sdk.bash && \
-        ./install_google_cloud_sdk.bash --disable-prompts --install-dir=/opt/; \
-    fi
-
-ENV PATH /go/bin:/usr/local/go/bin:/opt/google-cloud-sdk/bin:${PATH}
-
-# use go modules
-ENV GO111MODULE=on
-ENV GOPATH=/go
-# Workaround for https://github.com/kubernetes/gengo/issues/146
-ENV GOROOT=/usr/local/go
-
-# Create kfctl folder
-RUN mkdir -p ${GOPATH}/src/github.com/kubeflow/kfctl
-WORKDIR ${GOPATH}/src/github.com/kubeflow
-RUN mkdir kubeflow
-RUN echo REPO=${REPO} branch=${BRANCH}
-RUN git clone ${REPO} --depth=1 --branch ${BRANCH} --single-branch kubeflow
-WORKDIR ${GOPATH}/src/github.com/kubeflow/kfctl
-
-# Download dependencies first to optimize Docker caching.
-COPY go.mod .
-COPY go.sum .
+# Build the manager binary
+ARG GOLANG_VERSION=1.18.4
+FROM registry.access.redhat.com/ubi8/go-toolset:$GOLANG_VERSION as builder
+
+WORKDIR /workspace
+USER root
+# Copy the Go Modules manifests
+COPY go.mod go.mod
+COPY go.sum go.sum
+# cache deps before building and copying source so that we don't need to re-download as much
+# and so that source changes don't invalidate our downloaded layer
 RUN go mod download
-# Copy in the source
-COPY . .
-
-#**********************************************************************
-#
-# kfctl_base
-#
-FROM builder as kfctl_base
-
-RUN make build-kfctl && \
-    if [ "$(uname -m)" = "aarch64" ]; then \
-        cp bin/arm64/kfctl bin/kfctl; \
-    fi
-
-#**********************************************************************
-#
-# Final image base
-#
 
-FROM alpine:3.10.1 as barebones_base
-RUN mkdir -p /opt/kubeflow
-WORKDIR /opt/kubeflow
+# Copy the go source
+COPY main.go main.go
+COPY apis/ apis/
+COPY controllers/ controllers/
+COPY pkg/ pkg/
 
-#**********************************************************************
-#
-# kfctl
-#
-FROM barebones_base as kfctl
+# Build
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
 
-COPY --from=kfctl_base /go/src/github.com/kubeflow/kfctl/bin/kfctl /usr/local/bin
-COPY --from=kfctl_base /go/src/github.com/kubeflow/kfctl/third_party /third_party
-COPY --from=kfctl_base /go/pkg/mod /third_party/vendor
 
+FROM registry.access.redhat.com/ubi8/ubi-minimal:latest
+WORKDIR /
+COPY --from=builder /workspace/manager .
+USER 65532:65532
 
-CMD ["/bin/bash", "-c", "trap : TERM INT; sleep infinity & wait"]
+ENTRYPOINT ["/manager"]