tendermint/test/p2p/README.md

55 lines
1.6 KiB
Markdown

# Tendermint P2P Tests
These scripts facilitate setting up and testing a local testnet using docker containers.
Setup your own local testnet as follows.
For consistency, we assume all commands are run from the Tendermint repository root (ie. $GOPATH/src/github.com/tendermint/tendermint).
First, build the docker image:
```
docker build -t tendermint_tester -f ./test/docker/Dockerfile .
```
Now create the docker network:
```
docker network create --driver bridge --subnet 172.57.0.0/16 my_testnet
```
This gives us a new network with IP addresses in the rage `172.57.0.0 - 172.57.255.255`.
Peers on the network can have any IP address in this range.
For our four node network, let's pick `172.57.0.101 - 172.57.0.104`.
Since we use Tendermint's default listening port of 46656, our list of seed nodes will look like:
```
172.57.0.101:46656,172.57.0.102:46656,172.57.0.103:46656,172.57.0.104:46656
```
Now we can start up the peers. We already have config files setup in `test/p2p/data/`.
Let's use a for-loop to start our peers:
```
for i in $(seq 1 4); do
docker run -d \
--net=my_testnet\
--ip="172.57.0.$((100 + $i))" \
--name local_testnet_$i \
--entrypoint tendermint \
-e TMHOME=/go/src/github.com/tendermint/tendermint/test/p2p/data/mach$i/core \
tendermint_tester node --p2p.seeds 172.57.0.101:46656,172.57.0.102:46656,172.57.0.103:46656,172.57.0.104:46656 --proxy_app=dummy
done
```
If you now run `docker ps`, you'll see your containers!
We can confirm they are making blocks by checking the `/status` message using `curl` and `jq` to pretty print the output json:
```
curl 172.57.0.101:46657/status | jq .
```