Merge pull request #211 from redpanda-data/st/docker-image-sync-up

build: use the same alpine OS version in Dockerfile, update pkgs on build

Dockerfile

@@ -1,7 +1,7 @@
 ############################################################
 # Build image
 ############################################################
-FROM golang:1.20-alpine as builder
+FROM golang:1.20-alpine3.18 as builder
 
 ARG VERSION
 ARG BUILT_AT
@@ -27,12 +27,13 @@ RUN CGO_ENABLED=0 go build \
 ############################################################
 # Runtime Image
 ############################################################
-FROM alpine:3.17
+FROM alpine:3.18
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
 COPY --from=builder /app/bin/kminion /app/kminion
 RUN addgroup -S redpanda \
     && adduser -S redpanda -G redpanda \
-    && chmod o+rx /app/kminion
+    && chmod o+rx /app/kminion \
+    && apk upgrade --no-cache
 USER redpanda
 
 ENTRYPOINT ["/app/kminion"]