Fix #17

Dockerfile

@@ -1,8 +1,8 @@
-FROM alpine:3.11
+FROM alpine:3.12
 
 ENV URL=http://localhost:5000
 
-ARG build_deps="go make dep"
+ARG build_deps="go make dep git npm"
 ARG runtime_deps="dumb-init"
 ARG user_id=1000
 
@@ -11,9 +11,10 @@ COPY . /go/src/github.com/elisescu/tty-server
 RUN apk update && \
     apk add -u $build_deps $runtime_deps && \
     adduser -D -H -h / -u $user_id tty-server && \
-    cd /go/src/github.com/elisescu/tty-server && \
+    cd /go/src/github.com/elisescu/tty-server/frontend && \
+    npm install && npm build && cd .. && \
     GOPATH=/go dep ensure && \
-    GOPATH=/go make all && \
+    GOPATH=/go PATH=$GOPATH/bin:$PATH make all && \
     cp tty-server /usr/bin/ && \
     rm -r /go && \
     apk del $build_deps