docs(dockerfile): add comments for apk commands

JensVanhooydonck · Nov 28, 2018 · 61bea7c · 61bea7c
1 parent 7096677
commit 61bea7c
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/Dockerfile b/Dockerfile
@@ -1,8 +1,8 @@
 FROM node:8-alpine
 
-# Tini for Handling Kernel Signals
-# https://github.com/krallin/tini
-# https://github.com/nodejs/docker-node/blob/master/docs/BestPractices.md#handling-kernel-signals
+# - Upgrade alpine packages to avoid possible os vulnerabilities
+# - Tini for Handling Kernel Signals https://github.com/krallin/tini
+#   https://github.com/nodejs/docker-node/blob/master/docs/BestPractices.md#handling-kernel-signals
 RUN apk --no-cache upgrade && apk add --no-cache tini
 
 WORKDIR /opt/arena