Demo a testnet of 2 nodes using the github.com/cosmos/sdk-application-tutorial

README.md

How to use

Requirements:

• Docker
• SDK Application Tutorial built locally

Demo

# Start node1
./collab node1

# Start node2 (using the config and genesis of node1)
./collab node2

# Check that the block heigth is the same on the 2 nodes:
docker exec -it ns-node-1 nameservicecli status | jq .sync_info.latest_block_height
docker exec -it ns-node-2 nameservicecli status | jq .sync_info.latest_block_height

# Create new local key (on node1 and node2)
TODO

# Send some funds from node1 to node2
./collab.sh cli1 tx send --amount 1000000mycoin --chain-id test-chain-1Ifdo4 --from cosmos1hxczm2qgw70lhr5zs3qxs25vkd26fhf4ms3l8u --to cosmos1cjwzx4zr46tdyu9t222f0xaedh0mwk4fpnpjlh

collab.sh

#!/bin/sh

set -e

DATA=$(PWD)/data
NAME="nameservice"
NODE1="ns-node-1"
NODE2="ns-node-2"
MOUNT1="-v ${DATA}/${NODE1}/${NAME}d:/root/.${NAME}d -v ${DATA}/${NODE1}/${NAME}cli:/root/.${NAME}cli"
MOUNT2="-v ${DATA}/${NODE2}/${NAME}d:/root/.${NAME}d -v ${DATA}/${NODE2}/${NAME}cli:/root/.${NAME}cli"


start_node1() {
    # Init genesis + config
    [ -d "${DATA}/${NODE1}" ] || docker run --rm -it $MOUNT1 $NAME ${NAME}d init
    # Init start node
    docker run --name $NODE1 -d -p 26656:26656 -p 26657:26657 $MOUNT1 $NAME ${NAME}d start --moniker $NODE1
}


start_node2() {
    [ -d "${DATA}/${NODE2}" ] && echo "!!! Warning: node2 data dir still exists, run 'reset' before?"
    # Get node1 id
    id_node1=$(docker exec -it $NODE1 ${NAME}cli status | jq -r .node_info.id)
    ip_node1=$(docker inspect -f '{{ .NetworkSettings.IPAddress }}' $NODE1)
    seed="${id_node1}@${ip_node1}:26656"
    # Init genesis + config
    docker run --rm -it $MOUNT2 $NAME ${NAME}d init
    # Update config & genesis
    cp -v ${DATA}/${NODE1}/${NAME}d/config/genesis.json ${DATA}/${NODE2}/${NAME}d/config
    sed -ibak -E "s/^persistent_peers.+$/persistent_peers = \"${seed}\"/" data/${NODE2}/${NAME}d/config/config.toml
    # Start node2
    docker run --name $NODE2 -d -p 36656:26656 -p 36657:26657 $MOUNT2 $NAME ${NAME}d start --moniker $NODE2
}


case $1 in
    "node1")
        start_node1
        ;;
    "node2")
        start_node2
        ;;
    "cli1")
        shift
        docker exec -it $NODE1 ${NAME}cli $*
        ;;
    "cli2")
        shift
        docker exec -it $NODE2 ${NAME}cli $*
        ;;
    "reset")
        docker rm -f $NODE1 || true
        docker rm -f $NODE2 || true
        rm -rf ${DATA} || true
        echo "Cleared all data"
        ;;
    *)
        echo "Invalid arg"
        ;;
esac