[docker] simplify docker stuff.

Signed-off-by: Eric Wang <skygragon@gmail.com>

Author: skygragon

.dockerignore

@@ -0,0 +1,10 @@
+.git
+.npm
+.nyc_output
+.DS_Store
+coverage
+node_modules
+npm-debug.log*
+tmp
+*.log
+*.swp

Dockerfile

@@ -0,0 +1,13 @@
+FROM node:alpine
+LABEL maintainer="skygragon@gmail.com"
+
+WORKDIR /tmp/leetcode-cli
+COPY . .
+COPY bin/entrypoint /
+RUN npm install && \
+    tar zcf /leetcode-cli.tar.gz . && \
+    rm -rf /tmp/leetcode-cli
+
+WORKDIR /root
+VOLUME ["/root"]
+ENTRYPOINT ["/entrypoint"]

bin/docker.build

@@ -4,7 +4,7 @@ srcdir=/root/leetcode-cli
 leetcode=$srcdir/bin/leetcode
 
 if [ ! -f "$leetcode" ]; then
-  echo "Not found leetcode, install now ..."
+  echo "Unpacking leetcode-cli code ..."
   mkdir -p $srcdir
   tar zxf /leetcode-cli.tar.gz -C $srcdir
 fi