From b3b70e43d67e9c4f2161e146574c1b53d47fe61f Mon Sep 17 00:00:00 2001
From: Dennis Hermsmeier <dennis.hermsmeier@gmail.com>
Date: Mon, 21 May 2018 13:27:08 +0200
Subject: [PATCH] apk upgrade on build and use --no-cache

---
 Dockerfile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 1c521d8..d55f7c5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,10 @@
 FROM alpine:latest
 
-LABEL maintainer "https://github.com/hermsi1337"
+LABEL maintainer="https://github.com/hermsi1337"
 
 ENV ROOT_PASSWORD root
 
-RUN apk --update add openssh \
+RUN apk upgrade && apk add --no-cache openssh \
 		&& sed -i s/#PermitRootLogin.*/PermitRootLogin\ yes/ /etc/ssh/sshd_config \
 		&& echo "root:${ROOT_PASSWORD}" | chpasswd \
 		&& rm -rf /var/cache/apk/* /tmp/*