Use the nonroot base image

Author: johngmyers

Dockerfile

@@ -4,7 +4,7 @@ ADD        . .
 RUN        go install -mod vendor -a && \
            go test -mod vendor ./...
 
-FROM gcr.io/distroless/base-debian10
+FROM gcr.io/distroless/base-debian10:nonroot
 
 COPY --from=0 /go/bin/certificate-init-container /
 ENTRYPOINT ["/certificate-init-container"]