bump to 4.10.4

app/Dockerfile

@@ -1,8 +1,8 @@
-FROM alpine:3.6
+FROM alpine:3.9
 
 # Some ENV variables
 ENV PATH="/mattermost/bin:${PATH}"
-ENV MM_VERSION=4.10.0
+ENV MM_VERSION=4.10.4
 
 # Build argument to set Mattermost edition
 ARG edition=enterprise
@@ -33,9 +33,9 @@ RUN mkdir -p /mattermost/data \
 # Get ready for production
 RUN addgroup -g ${PGID} mattermost \
     && adduser -D -u ${PUID} -G mattermost -h /mattermost -D mattermost \
-    && chown -R mattermost:mattermost /mattermost /config.json.save 
+    && chown -R mattermost:mattermost /mattermost /config.json.save
 
-USER mattermost 
+USER mattermost
 
 #Healthcheck to make sure container is ready
 HEALTHCHECK CMD curl --fail http://localhost:8000 || exit 1