add Makefile for beacon_node Dockerfile, make image smaller

Signed-off-by: Jakub Sokołowski <jakub@status.im>

docker/beacon_node/Dockerfile

@@ -1,26 +1,41 @@
-FROM statusteam/nim-base
-MAINTAINER Zahary Karadjov <zahary@status.im>
+FROM statusteam/nim-base AS build
 
-ARG network
-ARG network_backend
+RUN apt update \
+ && apt install -y build-essential make \
+ && apt clean \
+ && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
-RUN apt-get update && apt-get install -y build-essential make librocksdb-dev && \
-    apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+RUN git clone https://github.com/status-im/nimbus.git \
+ && cd nimbus \
+ && make update deps
 
-RUN git clone https://github.com/status-im/nimbus.git && \
-    cd nimbus && \
-    make update deps
+ARG NETWORK
+ARG NETWORK_BACKEND
 
-RUN cd nimbus && \
-    set -a && \
-    . vendor/nim-beacon-chain/scripts/${network}.env && \
-    ./env.sh nim \
+RUN cd nimbus \
+ && set -a \
+ && . vendor/nim-beacon-chain/scripts/${NETWORK}.env \
+ && ./env.sh nim \
       -o:/usr/bin/beacon_node \
       -d:release \
-      -d:with$network_backend \
-      -d:SHARD_COUNT=$SHARD_COUNT \
-      -d:SLOTS_PER_EPOCH=$SLOTS_PER_EPOCH \
+      -d:with${NETWORK_BACKEND} \
+      -d:SHARD_COUNT=${SHARD_COUNT} \
+      -d:SLOTS_PER_EPOCH=${SLOTS_PER_EPOCH} \
       c vendor/nim-beacon-chain/beacon_chain/beacon_node.nim
 
-ENTRYPOINT ["beacon_node"]
+# --------------------------------- #
+# Starting new image to reduce size #
+# --------------------------------- #
+FROM debian:9-slim
 
+RUN apt update \
+ && apt install -y librocksdb-dev \
+ && apt clean \
+ && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+COPY --from=build /usr/bin/beacon_node /usr/bin/beacon_node 
+
+MAINTAINER Zahary Karadjov <zahary@status.im>
+LABEL description="Nimbus installation that can act as an ETH2 network bootstrap node."
+
+ENTRYPOINT ["/usr/bin/beacon_node"]

docker/beacon_node/Makefile

@@ -0,0 +1,15 @@
+# These default settings can be overriden by exporting env variables
+NETWORK         ?= testnet0
+NETWORK_BACKEND ?= rlpx
+
+IMAGE_TAG       ?= $(NETWORK)-$(NETWORK_BACKEND)
+IMAGE_NAME      ?= statusteam/nimbus_beacon_node:$(IMAGE_TAG)
+
+build: $(NIX_INSTALL)
+	docker build \
+		--build-arg="NETWORK=$(NETWORK)" \
+		--build-arg="NETWORK_BACKEND=$(NETWORK_BACKEND)" \
+		-t $(IMAGE_NAME) .
+
+push: build
+	docker push $(IMAGE_NAME)

docker/beacon_node/README.md

@@ -0,0 +1,3 @@
+# Description
+
+This `Dockerfile` defines the image used in the [`infra-nimbus`](https://github.com/status-im/infra-nimbus) fleet of hosts via the [`infra-role-beacon-node`](https://github.com/status-im/infra-role-beacon-node).

docker/build_beacon_node.sh

@@ -2,21 +2,17 @@
 
 set -euv
 
+DOCKERHUB_REPO_NAME=statusteam/nimbus_beacon_node
+
 buildAndPush() {
-  NETWORK=$1
-  BACKEND=$2
-  CONTAINER_NAME=statusteam/beacon_node_${NETWORK}_${BACKEND}
+  export NETWORK=$1
+  export NETWORK_BACKEND=$2
 
-  docker build -t $CONTAINER_NAME beacon_node \
-    --build-arg network=$NETWORK \
-    --build-arg network_backend=$BACKEND
-
-  docker push $CONTAINER_NAME
+  (cd $(dirname "$0")/beacon_node && make push)
 }
 
 buildAndPush testnet0 rlpx
 buildAndPush testnet1 rlpx
 
-buildAndPush testnet0 libp2p
-buildAndPush testnet1 libp2p
-
+#buildAndPush testnet0 libp2p
+#buildAndPush testnet1 libp2p