updates

Dockerfile

@@ -1,17 +1,15 @@
-FROM golang:1.13-alpine3.11 AS builder
+FROM golang:1.17-alpine3.14 AS builder
 
-RUN mkdir -p /src/src
 WORKDIR /usr/src
+ARG GOOGLE_CLOUD_GO_VERSION
+ENV GOOGLE_CLOUD_GO_VERSION $GOOGLE_CLOUD_GO_VERSION
 
-ENV GOOGLE_CLOUD_GO_VERSION v0.51.0
+RUN busybox wget "https://github.com/googleapis/google-cloud-go/archive/${GOOGLE_CLOUD_GO_VERSION}.tar.gz" -O- | \
+    busybox tar x --strip-components 1 -zf - && \
+    cd bigtable && \
+    go install -v ./cmd/emulator
 
-RUN apk add --no-cache git
-
-RUN git clone --depth=1 --branch="$GOOGLE_CLOUD_GO_VERSION" https://github.com/googleapis/google-cloud-go.git . \
-    && cd bigtable \
-    && go install -v ./cmd/emulator
-
-FROM alpine:3.11
+FROM alpine:3.14
 
 COPY --from=builder /go/bin/emulator /bin/cbtemulator
 

Makefile

@@ -0,0 +1,10 @@
+VERSION := 23c02d92c7a1747068eb1fc57dddbad23907d614
+
+build:
+	docker build -t us.gcr.io/sentryio/cbtemulator:$(VERSION) --build-arg=GOOGLE_CLOUD_GO_VERSION=$(VERSION) .
+
+# Ideally craft's set up to release to here, but some ops people
+# have permissions to push to the sentryio project, and
+# cbtemulator doesn't really need updates often.
+publish: build
+	docker push us.gcr.io/sentryio/cbtemulator:$(VERSION)