improve container image build

Signed-off-by: Mark Sagi-Kazar <[email protected]>

Dockerfile

@@ -1,7 +1,23 @@
-# Build the manager binary
-FROM golang:1.20 as builder
+FROM --platform=$BUILDPLATFORM tonistiigi/xx:1.2.1@sha256:8879a398dedf0aadaacfbd332b29ff2f84bc39ae6d4e9c0a1109db27ac5ba012 AS xx
+
+FROM --platform=$BUILDPLATFORM golang:1.20.3-alpine3.16@sha256:29c4e6e307eac79e5db29a261b243f27ffe0563fa1767e8d9a6407657c9a5f08 AS builder
+
+COPY --from=xx / /
+
+RUN apk add --update --no-cache ca-certificates make git curl clang lld
+
+ARG TARGETPLATFORM
+
+RUN xx-apk --update --no-cache add musl-dev gcc
+
+RUN xx-go --wrap
+
+WORKDIR /usr/local/src/logging-operator
+
+ARG GOPROXY
+
+ENV CGO_ENABLED=0
 
-WORKDIR /workspace
 # Copy the Go Modules manifests
 COPY go.mod go.mod
 COPY go.sum go.sum
@@ -20,11 +36,12 @@ COPY controllers/ controllers/
 COPY pkg/ pkg/
 
 # Build
-RUN CGO_ENABLED=0 GO111MODULE=on go build -a -o manager main.go
-
-# Use distroless as minimal base image to package the manager binary
-# Refer to https://github.com/GoogleContainerTools/distroless for more details
-FROM gcr.io/distroless/static:latest
-WORKDIR /
-COPY --from=builder /workspace/manager .
-ENTRYPOINT ["/manager"]
+RUN go build -o /usr/local/bin/manager
+RUN xx-verify /usr/local/bin/manager
+
+
+FROM gcr.io/distroless/static:latest@sha256:a01d47d4036cae5a67a9619e3d06fa14a6811a2247b4da72b4233ece4efebd57
+
+COPY --from=builder /usr/local/bin/manager /usr/local/bin
+
+ENTRYPOINT ["manager"]