Bump Alpine to 3.9 in Docker image

acogoluegnes · acogoluegnes · commit 9b3b39349c76 · 2019-02-08T11:03:55.000+01:00
diff --git a/Dockerfile-alpine b/Dockerfile-alpine
@@ -1,4 +1,4 @@
-FROM alpine:3.8 as builder
+FROM alpine:3.9 as builder
 
 ARG perf_test_version="2.5.0"
 
