adding patch for dockerfile and according makefile targets

Dockerfile

@@ -0,0 +1,97 @@
+# /************************************************************************
+ #  File: Dockerfile
+ #  Author: mdr0id
+ #  Date: 9/3/2019
+ #  Description:  Used for devs that have not built zcash or lightwalletd on
+ #                on existing system
+ #  USAGE:
+ #
+ #  To build image: make docker_img
+ #  To run container: make docker_image_run
+ #  
+ #  This will place you into the container where you can run zcashd, zcash-cli, 
+ #  lightwalletd ingester, and lightwalletd server etc..
+ #
+ #  First you need to get zcashd sync to current height on testnet, from outside container:
+ #  make docker_img_run_zcashd
+ #
+ #  Sometimes you need to manually start zcashd for the first time, from insdie the container:
+ #  zcashd -printtoconsole   
+ #
+ #  Once the block height is atleast 280,000 you can go ahead and start lightwalletd components
+ #  make docker_img_run_lightwalletd_ingest
+ #  make docker_img_run_lightwalletd_insecure_server
+ #  
+ #  If you get kicked out of docker or it locks up...
+ #  To restart, check to see what container you want to restart via docker ps -a
+ #  Then, docker restart <container id>
+ #  The reattach to it, docker attach <container id>
+ #
+ #  Known bugs/missing features/todos:
+ #
+ #  *** DO NOT USE IN PRODUCTION ***
+ #  
+ #  1. Create docker-compose with according .env scaffolding 
+ #  2. Setup container volume for blocks dir; remove sync time
+ #  3. Determine librustzcash bug that breaks zcashd alpine builds at runtime
+ #  4. Once versioning is stable add config flags for images
+ #  5. Add mainnet config once lightwalletd stack supports it 
+ #
+ # ************************************************************************/
+
+# Create layer in case you want to modify local lightwalletd code
+FROM golang:1.11 AS lightwalletd_base
+
+ENV ZCASH_CONF=/root/.zcash/zcash.conf
+ENV LIGHTWALLETD_URL=https://github.com/zcash-hackworks/lightwalletd.git
+
+RUN apt-get update && apt-get install make git gcc
+WORKDIR /home
+
+# Comment out line below to use local lightwalletd repo changes
+RUN git clone ${LIGHTWALLETD_URL}
+
+# To add local changes to container uncomment this line
+#ADD . /home
+
+RUN cd ./lightwalletd && make
+RUN /usr/bin/install -c /home/lightwalletd/ingest /home/lightwalletd/server /usr/bin/
+
+# Setup layer for zcashd and zcash-cli binary
+FROM golang:1.11 AS zcash_builder
+
+ENV ZCASH_URL=https://github.com/zcash/zcash.git
+
+RUN apt-get update && apt-get install \
+    build-essential pkg-config libc6-dev m4 g++-multilib \
+    autoconf libtool ncurses-dev unzip git python python-zmq \
+    zlib1g-dev wget curl bsdmainutils automake python-pip -y
+
+WORKDIR /build
+RUN git clone ${ZCASH_URL}
+
+RUN ./zcash/zcutil/build.sh -j$(nproc)
+RUN bash ./zcash/zcutil/fetch-params.sh
+RUN /usr/bin/install -c /build/zcash/src/zcashd /build/zcash/src/zcash-cli /usr/bin/
+
+# Create layer for lightwalletd and zcash binaries to reduce image size
+FROM golang:1.11 AS zcash_runner
+ENV ZCASH_CONF=/root/.zcash/zcash.conf
+
+RUN mkdir -p /root/.zcash/ && \
+    mkdir -p /root/.zcash-params/ && \
+    mkdir /logs/ && \
+    mkdir /db/
+
+# Use lightwallet server and ingest binaries from prior layer
+COPY --from=lightwalletd_base /usr/bin/ingest /usr/bin/server /usr/bin/
+COPY --from=zcash_builder /usr/bin/zcashd /usr/bin/zcash-cli /usr/bin/
+COPY --from=zcash_builder /root/.zcash-params/ /root/.zcash-params/
+
+# Configure zcash.conf
+RUN echo "testnet=1" >> ${ZCASH_CONF} && \
+    echo "addnode=testnet.z.cash" >> ${ZCASH_CONF} && \
+    echo "rpcbind=127.0.0.1" >> ${ZCASH_CONF} && \
+    echo "rpcport=18232" >> ${ZCASH_CONF} && \
+    echo "rpcuser=lwd" >> ${ZCASH_CONF} && \
+    echo "rpcpassword=`head /dev/urandom | tr -dc A-Za-z0-9 | head -c 13 ; echo ''`" >> ${ZCASH_CONF}

Makefile

@@ -54,8 +54,36 @@ docs:
 	@echo "Generating docs..."
 
 # Generate docker image
-image:
-	@echo "Building lightwalletd image..."
+docker_img:
+	docker build -t zcash_lwd_base .
+
+# Run the above docker image in a container
+docker_img_run:
+	docker run -i --name zcashdlwd zcash_lwd_base
+
+# Execture a bash process on zcashdlwdcontainer
+docker_img_bash:
+	docker exec -it zcashdlwd bash
+
+# Start the zcashd process in the zcashdlwd container
+docker_img_run_zcashd:
+	docker exec -i zcashdlwd zcashd -printtoconsole
+
+# Stop the zcashd process in the zcashdlwd container
+docker_img_stop_zcashd:
+	docker exec -i zcashdlwd zcash-cli stop
+
+# Start the lightwalletd ingester in the zcashdlwd container 
+docker_img_run_lightwalletd_ingest:
+	docker exec -i zcashdlwd ingest --conf-file /root/.zcash/zcash.conf --db-path /db/sql.db --log-file /logs/ingest.log
+
+# Start the lightwalletd server in the zcashdlwd container
+docker_img_run_lightwalletd_insecure_server:
+	docker exec -i zcashdlwd server --very-insecure=true --conf-file /root/.zcash/zcash.conf --db-path /db/sql.db --log-file /logs/server.log --bind-addr 127.0.0.1:18232
+
+# Remove and delete ALL images and containers in Docker; assumes containers are stopped
+docker_remove_all:
+	docker system prune -f
 
 # Get dependencies
 dep: