Added dockerfile and compose file for raspberry pi

Dockerfile.arm

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+FROM golang:1.13-alpine as builder
+LABEL maintainer="gonzaloaune@stakwork.com"
+
+# Force Go to use the cgo based DNS resolver. This is required to ensure DNS
+# queries required to connect to linked containers succeed.
+ENV GODEBUG netdns=cgo
+
+# Pass a tag, branch or a commit using build-arg.  This allows a docker
+# image to be built from a specified Git state.  The default image
+# will use the Git tip of master by default.
+ARG checkout="v0.10.0-beta"
+# ARG checkout="master"
+
+# Install dependencies and build the binaries.
+RUN apk add --no-cache --update alpine-sdk git make gcc openssh-client
+
+RUN git clone https://github.com/lightningnetwork/lnd /go/src/github.com/lightningnetwork/lnd
+RUN cd /go/src/github.com/lightningnetwork/lnd \
+&&  git checkout $checkout \
+&&  make \
+&&  make install tags="signrpc walletrpc chainrpc invoicesrpc experimental"
+
+# Start a new, final image.
+FROM arm32v7/alpine:3.11 as final
+
+EXPOSE 80
+EXPOSE 9735
+
+ENV NODE_ENV production
+ENV NODE_SCHEME http
+
+# Add bash and ca-certs, for quality of life and SSL-related reasons.
+RUN apk --no-cache add bash ca-certificates
+
+# Copy the binaries from the builder image.
+COPY --from=builder /go/bin/lncli /bin/
+COPY --from=builder /go/bin/lnd /bin/
+
+RUN apk add --no-cache --update nodejs=12.15.0-r1 nodejs-npm=12.15.0-r1 sqlite=3.30.1-r2 git supervisor
+
+RUN git clone https://github.com/stakwork/sphinx-relay /relay/
+
+WORKDIR /relay/
+
+ARG sphinx_checkout="master"
+
+RUN git checkout $sphinx_checkout
+
+RUN apk --no-cache add g++ gcc libgcc libstdc++ linux-headers make python jq git curl libmcrypt-dev
+
+USER root
+
+RUN rm -rf node_modules/
+RUN npm install
+RUN npm install --quiet node-gyp@3.8.0 -g
+RUN npm -g config set user root
+RUN npm install nw-gyp -g
+RUN npm uninstall sqlite3
+RUN npm install sqlite3 --build-from-source --runtime=node-webkit --target_arch=arm --target=0.42.0
+RUN npm uninstall sqlite3
+RUN npm install sqlite3 --build-from-source --runtime=node-webkit --target_arch=arm --target=0.42.0
+RUN npm rebuild
+RUN npm run tsc
+
+VOLUME /relay/.lnd
+
+COPY ./docker/lnd.conf.sample /relay/.lnd/lnd.conf
+
+#Uncomment if you have a copy of the channel.db you want to use.
+#COPY ./channel.db /relay/.lnd/data/graph/mainnet/
+
+RUN git clone https://github.com/stakwork/sphinx-keysend-test/ /sphinx-keysend/
+WORKDIR /sphinx-keysend/
+
+ARG sphinx_keysend_checkout="binary"
+
+RUN git checkout $sphinx_keysend_checkout
+RUN npm install
+
+WORKDIR /relay/
+
+RUN apk --no-cache add expect bash
+
+RUN mkdir -p /var/log/supervisor
+COPY ./docker/supervisord.conf /etc/supervisord.conf
+COPY ./docker/lnd_supervisor.conf /etc/supervisor.d/lnd_supervisor.ini
+COPY ./docker/relay_supervisor.conf /etc/supervisor.d/relay_supervisor.ini
+COPY ./docker/aliases.sh /etc/profile.d/aliases.sh
+
+ENV ENV="/etc/profile"
+
+ENTRYPOINT [ "bash", "/relay/docker/entrypoint.sh" ]

docker-compose.arm.yml

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+version: '3'
+volumes:
+  lnddata:
+
+services:
+  relay:
+    build:
+      context: .
+      dockerfile: Dockerfile.arm
+    volumes:
+      - lnddata:/relay/.lnd
+    ports:
+      - "9735:9735"
+      - "80:80"
+    environment:
+      - PORT=80
+      - NODE_DOMAIN=78.152.250.3:8888
+      - NODE_LND_PORT=9735
+      - NODE_ENV=production