Update Dockerfile

docker/Dockerfile

@@ -3,11 +3,11 @@ FROM debian:stretch-slim
 WORKDIR /cmds
 
 RUN apt-get update -qqy && \
-    apt-get install -qqy sudo curl gnupg openssh-server apt-transport-https iputils-ping dnsutils rsyslog && \
-    mkdir -p /var/run/sshd && \
-    curl -fsSL https://repo.stns.jp/scripts/apt-repo.sh | sh && \
-    apt-get install -y stns-v2 libnss-stns-v2 && \
-    sed -i -e 's/^passwd:.*/passwd: files stns/g' /etc/nsswitch.conf && \
+    apt-get install -qqy sudo curl gnupg openssh-server apt-transport-https iputils-ping dnsutils rsyslog
+RUN mkdir -p /var/run/sshd && \
+    curl -fsSL https://repo.stns.jp/scripts/apt-repo.sh | sh 
+RUN apt-get install -y stns-v2 libnss-stns-v2
+RUN sed -i -e 's/^passwd:.*/passwd: files stns/g' /etc/nsswitch.conf && \
     sed -i -e 's/^shadow:.*/shadow: files stns/g' /etc/nsswitch.conf && \
     sed -i -e 's/^group:.*/group: files stns/g' /etc/nsswitch.conf && \
     ln -s $(which ping) . && \