Update dockerfile according issue: timeoff-management#505

Dockerfile

@@ -1,39 +1,8 @@
-# -------------------------------------------------------------------
-# Minimal dockerfile from alpine base
-#
-# Instructions:
-# =============
-# 1. Create an empty directory and copy this file into it.
-#
-# 2. Create image with: 
-#	docker build --tag timeoff:latest .
-#
-# 3. Run with: 
-#	docker run -d -p 3000:3000 --name alpine_timeoff timeoff
-#
-# 4. Login to running container (to update config (vi config/app.json): 
-#	docker exec -ti --user root alpine_timeoff /bin/sh
-# --------------------------------------------------------------------
-FROM alpine:3.8
-
+FROM node:15
 EXPOSE 3000
-
-LABEL org.label-schema.schema-version="1.0"
-LABEL org.label-schema.docker.cmd="docker run -d -p 3000:3000 --name alpine_timeoff"
-
-RUN apk add --no-cache \
-    git \
-    make \
-    nodejs npm \
-    python \
-    vim
-
-RUN adduser --system app --home /app
-USER app
-WORKDIR /app
-RUN git clone https://github.com/timeoff-management/application.git timeoff-management
-WORKDIR /app/timeoff-management
-
+ENV NODE_ENV=production
+RUN git clone https://github.com/Tlattice/timeoff-management-application.git timeoff
+WORKDIR /timeoff
 RUN npm install
-
+RUN npm install --save mysql
 CMD npm start