add docker files

Dockerfile

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+FROM node:12.18.0-alpine3.9
+
+WORKDIR /usr/src/app
+
+
+ADD ./package.json /usr/src/app/package.json
+ADD ./yarn.lock /usr/src/app/yarn.lock
+#RUN useradd app && \
+#    mkdir -p /home/app/.lnd
+RUN apk update && apk upgrade && \
+    apk add --no-cache bash git openssh
+RUN yarn install
+
+ADD . /usr/src/app
+RUN ls /usr/src/app
+
+RUN chmod +x ./docker-start.sh
+#ADD ./tls.cert /usr/src/app/tls.cert
+#ADD ./admin.macaroon /usr/src/app/admin.macaroon
+
+# && \
+#    chown -R app:app /home/app && \
+#    chown -R app:app /usr/src/app && \
+#    chown -R app:app /start.sh
+
+#ARG lnd_address
+#ENV LND_ADDR=$lnd_address
+EXPOSE 9835
+CMD ["./docker-start.sh"]