CNS-140: dockerize lavad setup

Update the Dockerfile to generate docker image that can run lava node.
(Implemented using the artifacts in docker/ directory.)

To start a lava node in a container, run the command:
    docker-compose --profile node -f docker/docker-compose.yml up

It will execute the script `start_node.sh` (from docker/), which follows
the instructions for starting a node (with cosmovisor).

Dockerfile

@@ -98,11 +98,42 @@ RUN --mount=type=cache,target=/root/.cache/go-build \
 
 # Download debian packages for runner
 
-FROM ${RUNNER_IMAGE}
+FROM ${RUNNER_IMAGE} as runner-base
 
+RUN apt-get update \
+    && apt-get install -yqq --no-install-recommends \
+        git curl unzip ca-certificates \
+    && apt-get -y purge \
+    && apt-get -y clean \
+    && apt-get -y autoremove \
+    && rm -rf /var/lib/apt/lists/*
+
+# --------------------------------------------------------
+# Runner
+# --------------------------------------------------------
+
+FROM runner-base
+
+COPY --from=cosmovisor /go/bin/cosmovisor /bin/cosmovisor
 COPY --from=builder /lava/build/lavad /bin/lavad
 
 ENV HOME /lava
 WORKDIR $HOME
 
-ENTRYPOINT ["/bin/lavad"]
+COPY docker/entrypoint.sh /
+COPY docker/start_node.sh start_node.sh
+
+# lava api
+EXPOSE 1317
+# rosetta
+EXPOSE 8080
+# grpc
+EXPOSE 9090
+# grpc-web
+EXPOSE 9090
+# tendermint p2p
+EXPOSE 26656
+# tendermint rpc
+EXPOSE 26657
+
+ENTRYPOINT ["/entrypoint.sh"]

docker/docker-compose.yml

@@ -0,0 +1,27 @@
+version: '3.9'
+
+x-env: &env-common
+  environment:
+    - LAVA_EXTERNAL_IP=${LAVA_EXTERNAL_IP:-0.0.0.0}
+
+services:
+
+  lava-node:
+    build: ..
+    image: lava:latest
+    command: "node"
+    <<: *env-common
+    ports:
+      - '${LAVA_EXTERNAL_IP:-0.0.0.0}:1317:1317'
+      - '${LAVA_EXTERNAL_IP:-0.0.0.0}:9090:9090'
+      - '${LAVA_EXTERNAL_IP:-0.0.0.0}:9091:9091'
+      - '${LAVA_EXTERNAL_IP:-0.0.0.0}:26656:26656'
+      - '${LAVA_EXTERNAL_IP:-0.0.0.0}:26657:26657'
+    deploy:
+      resources:
+        limits:
+          cpus: '4'
+          memory: '8gb'
+    restart: unless-stopped
+    profiles: ["node"]
+

docker/entrypoint.sh

@@ -0,0 +1,47 @@
+#!/bin/sh
+# vim:sw=4:ts=4:et
+
+set -e
+
+if [ -z "${LAVA_QUIET_LOGS:-}" ]; then
+    exec 3>&1
+else
+    exec 3>/dev/null
+fi
+
+if /usr/bin/find "/entrypoint.d/" -mindepth 1 -maxdepth 1 -type f -print -quit 2>/dev/null | read v; then
+    echo >&3 "$0: Looking for shell scripts in /entrypoint.d/"
+    find "/entrypoint.d/" -follow -type f -print | sort -n | while read -r f; do
+        case "$f" in
+            *.sh)
+                if [ -x "$f" ]; then
+                    echo >&3 "$0: Launching $f";
+                    "$f"
+                else
+                    # warn on shell scripts without exec bit
+                    echo >&3 "$0: Ignoring $f, not executable";
+                fi
+                ;;
+            *) echo >&3 "$0: Ignoring $f";;
+        esac
+    done
+    echo >&3 "$0: Configuration complete; ready for start up"
+else
+    echo >&3 "$0: No files found in /entrypoint.d/, skipping configuration"
+fi
+
+if [ $# -lt 1 ]; then
+    echo >&3 "$0: No command given"
+    exit 1
+fi
+
+case _"$1" in
+    _node) cmd="/lava/start_node.sh" ;;
+    *) cmd="$1" ;;
+esac
+
+shift
+
+echo >&3 "$0: Launching $cmd $@"
+
+exec "$cmd" "$@"

docker/start_node.sh

@@ -0,0 +1,99 @@
+#!/bin/sh
+# vim:sw=4:ts=4:et
+
+set -e
+
+SETUP_CONFIG_GIT_URL='https://github.com/K433QLtr6RA9ExEq/GHFkqmTzpdNLDd6T.git'
+COSMOVISOR_ZIP_URL='https://lava-binary-upgrades.s3.amazonaws.com/testnet/cosmovisor-upgrades/cosmovisor-upgrades.zip'
+
+debug() {
+    echo "DBG: $@"
+}
+
+error() {
+    echo "ERR: $@"
+    exit 1
+}
+
+setup_node() {
+    setup_config_dir=$(basename ${SETUP_CONFIG_GIT_URL})
+
+    # remove old data (if any)
+    rm -rf ${setup_config_dir}
+
+    # download setup configuration
+    git clone --depth 1 ${SETUP_CONFIG_GIT_URL} ${setup_config_dir} || \
+	error "setup: failed to clone setup configuration"
+
+    cd ${setup_config_dir}/testnet-1
+    . setup_config/setup_config.sh
+
+    # keep a copy handy for when we restart
+    cp setup_config/setup_config.sh ${HOME}
+
+    # remove old config (if any)
+    rm -rf ${lavad_home_folder}
+
+    # copy initial configuration and genesis data
+    mkdir -p ${lavad_home_folder}
+    mkdir -p ${lava_config_folder}
+    cp default_lavad_config_files/* ${lava_config_folder}
+    cp genesis_json/genesis.json ${lava_config_folder}/genesis.json
+}
+
+setup_env() {
+    # environment variables for cosmovisor
+    export DAEMON_NAME=lavad
+    export CHAIN_ID=lava-testnet-1
+    export DAEMON_HOME=$HOME/.lava
+    export DAEMON_ALLOW_DOWNLOAD_BINARIES=true
+    export DAEMON_LOG_BUFFER_SIZE=512
+    export DAEMON_RESTART_AFTER_UPGRADE=true
+    export UNSAFE_SKIP_BACKUP=true
+}
+
+# note: expected to run in the setup config directory - see setup_node())
+setup_cosmovisor() {
+    # download latest cosmovisor-upgrades
+    curl -L --progress-bar -o cosmovisor-upgrades.zip "${COSMOVISOR_ZIP_URL}" || \
+        error "setup: failed to download cosmovisor upgrades"
+    unzip cosmovisor-upgrades.zip || \
+	error "setup: failed to unzip cosmovisor upgrades"
+
+    # copy cosmovisor configuration
+    mkdir -p ${lavad_home_folder}/cosmovisor
+    cp -r cosmovisor-upgrades/* ${lavad_home_folder}/cosmovisor
+
+    # initialize the chain
+    output=$( \
+        ${lavad_home_folder}/cosmovisor/genesis/bin/lavad init \
+          my-node \
+          --chain-id lava-testnet-1 \
+          --home ${lavad_home_folder} \
+          --overwrite \
+        )
+
+    # an error message about missing upgrade-info.json is expected;
+    # anything else is unexpected and should abort.
+    if [ $? -ne 0 ]; then
+        case "$output" in
+        "*upgrade-info.json: no such file or directory*") ;;
+        "*") error "setup: failed to initialize the chain" ;;
+        esac
+    fi
+
+    # copy genesis data again
+    cp genesis_json/genesis.json ${lava_config_folder}/genesis.json
+}
+
+setup_env
+
+if [ ! -e ${HOME}/.lava/cosmovisor/current ]; then
+    setup_node
+    setup_cosmovisor
+else
+    . ${HOME}/setup_config.sh
+fi
+
+exec /bin/cosmovisor start --home=${lavad_home_folder} --p2p.seeds ${seed_node}
+