Upgrade system first

Change-Id: I9ee2ac74785212f8fa6f4ca84dabfcf0ebd3ed18
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
(cherry picked from commit 416589195799adc49c5163522313f9e9321c4449)

diff --git a/docker/core/Dockerfile b/docker/core/Dockerfile
index 54ededd..5579be4 100644 (file)
--- a/docker/core/Dockerfile
+++ b/docker/core/Dockerfile
@@ -3,7 +3,8 @@ FROM alpine:3.9
 ARG BRANCH=stable/hunter
 ARG OPENSTACK_TAG=stable/rocky
 
-RUN apk --no-cache add --update python py-pip bash git mailcap libxml2 libxslt && \
+RUN apk -U upgrade && \
+    apk --no-cache add --update python py-pip bash git mailcap libxml2 libxslt && \
     apk --no-cache add --virtual .build-deps --update \
         python-dev build-base libxml2-dev libxslt-dev && \
     git init /src/functest-xtesting && \