Merge branch '90-add-operatorsdk' into 'master'

Resolve "add Operator SDK-related binaries to gitlab-operator-build-base"

Closes #90

See merge request gitlab-org/gitlab-build-images!437

Dockerfile.gitlab-operator-build-base

@@ -1,7 +1,29 @@
 ARG GOLANG_VERSION=1.16
+ARG ALPINE_VERSION=3.14
+# 3.14 presents challenges: https://wiki.alpinelinux.org/wiki/Release_Notes_for_Alpine_3.14.0#faccessat2
+# while building OPM. 3.13 has no issues
+ARG OPM_ALPINE_VERSION=3.13
+
+## Opm
+
+FROM golang:${GOLANG_VERSION}-alpine${OPM_ALPINE_VERSION} as opm
+
+ARG OPM_VERSION=1.19.1
+ENV GOPROXY="https://proxy.golang.org/"
+
+RUN apk add --no-cache make gcc musl-dev curl git bash
+
+## on Alpine opm needs to be built from scratch due to glibc vs musl issues
+RUN mkdir -p /src \
+    && curl -s -L -o /src/operator-registry-${OPM_VERSION}.tgz https://github.com/operator-framework/operator-registry/archive/refs/tags/v${OPM_VERSION}.tar.gz \
+    && cd /src \
+    && tar -xzf operator-registry-${OPM_VERSION}.tgz \
+    && ln -s operator-registry-${OPM_VERSION} operator-registry \
+    && cd operator-registry \
+    && make bin/opm
 
 ## Kustomize
-FROM golang:${GOLANG_VERSION}-alpine as kustomize
+FROM golang:${GOLANG_VERSION}-alpine${ALPINE_VERSION} as kustomize
 
 ARG KUSTOMIZE_VERSION=3.8.10
 ENV GOPROXY="https://proxy.golang.org/"
@@ -12,7 +34,7 @@ RUN mkdir /src && cd /src; \
       go get sigs.k8s.io/kustomize/kustomize/v3@v${KUSTOMIZE_VERSION}
 
 ## Controller-gen
-FROM golang:${GOLANG_VERSION}-alpine as controller-gen
+FROM golang:${GOLANG_VERSION}-alpine${ALPINE_VERSION} as controller-gen
 
 ARG CONTROLLER_GEN_VERSION=0.3.0
 ENV GOPROXY="https://proxy.golang.org/"
@@ -22,7 +44,7 @@ RUN mkdir /src && cd /src; \
 	  && go get sigs.k8s.io/controller-tools/cmd/controller-gen@v${CONTROLLER_GEN_VERSION} 
 
 ## Build
-FROM golang:${GOLANG_VERSION}-alpine as build
+FROM golang:${GOLANG_VERSION}-alpine${ALPINE_VERSION} as build
 
 LABEL maintainer="GitLab Distribution Team" \
       description="Build base image for the GitLab Operator project."
@@ -30,8 +52,15 @@ LABEL maintainer="GitLab Distribution Team" \
 ARG KUBEBUILDER_VERSION=2.3.1
 ARG YQ_VERSION=4.7.0
 ARG HELM_VERSION=3.5.2
+ARG OPERATORSDK_VERSION=1.13.1
+# ARG OPM_VERSION=1.19.0
+
+RUN apk add --no-cache podman buildah curl make gcc musl-dev git bash coreutils
+
+# make VFS podman's default storage driver to
+# accomodate running podman within docker
+RUN sed -i 's#^driver.*$#driver = "vfs"#g' /etc/containers/storage.conf
 
-RUN apk add --no-cache podman curl make gcc musl-dev git bash coreutils
 RUN go get -u \
         github.com/onsi/ginkgo/ginkgo \
         golang.org/x/lint/golint 
@@ -51,13 +80,21 @@ RUN curl --retry 6 -Ls "https://get.helm.sh/helm-v${HELM_VERSION}-linux-amd64.ta
     && chmod +x /tmp/linux-amd64/helm \
     && mv /tmp/linux-amd64/helm /usr/local/bin/helm
 
+# Opm
+COPY --from=opm /src/operator-registry/bin/opm /usr/local/bin/opm
+
+# Operator-SDK
+RUN curl -o /usr/local/bin/operator-sdk_linux_amd64 -L \
+        https://github.com/operator-framework/operator-sdk/releases/download/v${OPERATORSDK_VERSION}/operator-sdk_linux_amd64 \
+    ; chmod +x /usr/local/bin/operator-sdk_linux_amd64 ; ln -s /usr/local/bin/operator-sdk_linux_amd64 /usr/local/bin/operator-sdk
+
 # Kustomize
 COPY --from=kustomize /go/bin/kustomize /usr/local/bin/kustomize
 # Controller-gen
 COPY --from=controller-gen /go/bin/controller-gen /usr/local/bin/controller-gen
 
 ## Final image
-FROM golang:${GOLANG_VERSION}-alpine
+FROM golang:${GOLANG_VERSION}-alpine${ALPINE_VERSION}
 LABEL maintainer="GitLab Distribution Team" \
       description="Build base image for the GitLab Operator project."
 COPY --from=build / /