Docker build

** Prerequesites It is required to have docker-compose v2.3.3 installed for the scripts to work (or you get a nonsense misleading python error). To upgrade:

sudo apt update
sudo apt install docker-compose-plugin
docker compose version
sudo rm /usr/local/bin/docker-compose
echo 'alias docker-compose="docker compose"' >> ~/.bashrc
source ~/.bashrc
docker-compose version

** Build monitoring.dockerfile

docker build -f monitoring.dockerfile -t pocr-mon . 

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docker-compose.yml content

In the root of the pocr-monorepo folder there is a docker-compose.yml that bootstrap many services

• geth-bootnode: Used as discovery node for the blockchain and the Dockerfile of the service can be found at pocr-network/bootnode/Dockerfile

• sealer-1,2,3: Those are 3 nodes that start geth client with Proof Of Climate awaReness and the Dockerfilecan be found at pocr-network/sealer/Dockerfile The Dockerfile uses multistage the default stage runtime will download the geth built priviously and available in the gitlab and the second stage dev is to get geth from local machine To use dev stage update in .env file the key SEALER_TARGET by dev instead of runtime and then copy your geth binary to pocr-network/sealer/geth

• pocr-monitoring: frontend app that will monitor the network (local or remote) nodes and show the carbon footprint of each and the CRC rewards cumulated by each

• lite-explorer: An opensource solution, to explorer the blocks of the blockchain

• monitor and dahsboard: An opensource solution to start the ethstats monitor on the network

.env file This file is used by docker-compose.yml to read the default environment variables

pocr-network/genesis directory Everytime the smartcontracts changes the CICD will build and publish 2 genesis files kerleano.jsonand local.json, the sealer download the genesis of the blockchain (check pocr-network/sealer/Dockerfile ) and then use geth init with the file downloaded to init the network before the start

Deprecated This directory contains some genesis files used as example to bootstrap the blockchain locally. Example:

• pocr-network/genesis/saturndev-sealer1-authorized.json: init the network with only sealer-1 as authorized node to seal blocks in the network
• pocr-network/genesis/saturndev-all-sealers-authorized.json: init the network with all the 3 sealers authorized

You can start the local network with any genesis file you want by changing in .env file the path to genesis MOUNT_GENESIS_FILE_PATH=<path_to_genesis_file> and the network id NETWORK_ID=<network_id_of_the_genesis>

Start/stop the stack

in the root folder there are start.sh and stop.sh scripts to start and stop the stack.

Those scripts use docker-compose.yml to start all or some specific services

By default start.sh will only start portainer if no arguments are passed to the script

./start.sh

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If you want to start all the services (network, monitoring and lb) use all as argument

./start.sh all 

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If you want to start just the network use network as argument

./start.sh network

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If you want to start just the monitoring use monitoring as argument

./start.sh monitoring

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You can also combine arguments if needed, like starting networkservices and monitoring services

./start.sh network monitoring

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If you want to run process in background add -d option to the start command, example:

# start monitoring in background
./start.sh monitoring -d

# start network in background
./start.sh network -d

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To stop the stack use

./stop.sh

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Use the initialized CRC

The account 0x3D0a5f7514906c02178c6Ce5c4ec33256F08Ce58 is initialized with some CRC (6000 for now) in the genesis. To use it you have in the pocr-network/keystore folder the json wallet (which password is password) or the auditor private key.

persistance

The docker-compose persiste the data of sealers by mounting the volumes to the host using the keys in .env file MOUNT_DATADIR_NODE_1=./pocr-network/data/node1/ MOUNT_DATADIR_NODE_2=./pocr-network/data/node2/ MOUNT_DATADIR_NODE_3=./pocr-network/data/node3/

If you want to reset the blockchain then delete /pocr-network/data directory (rm -rf /pocr-network/data/)

apps and access

When you start the stack you can access the diffrent services at the urls bellow:

• Pocr-monitoring: http://localhost:8081/pocr/

• ethstats: http://localhost:8008

• lite-explorer: http://localhost:8800

• rpc endpoints: http://localhost:8541/, http://localhost:8543/ and http://localhost:8545/ if you start the reverse-proxy nginx service lb you can use http://localhost/rpc as a loadbalance url to the 3 rpc endpoints

• ws endpoints: ws://localhost:8542/, http://localhost:8544/ and http://localhost:8546/ if you start the reverse-proxy nginx service lb you can use ws://localhost/ws as a loadbalance url to the 3 ws endpoints

• Portainer: accessible at the url http://localhost:9000 At first, initiate Portainer with a login password You would then have the possibility to view your 3 nodes logs in real time directly in your browser, including possible monitoring services you would add in your network through the docker-compose.

  Logs are refreshed auomatically. Your network will be correclty mining if you see the logs

  INFO [04-04|15:38:08.002] Commit new sealing work                  number=141 sealhash=f2a191..478cdb uncles=0 txs=0 gas=0 fees=0 elapsed="294.288µs"
  INFO [04-04|15:38:08.002] Carbon footprint nb nodes                result=0000000000000000000000000000000000000000000000000000000000000000
  INFO [04-04|15:38:08.002] No reward for signer                     node=0x6E45c195E12D7FE5e02059F15d59c2c976A9b730 error="no node in PoCR smart contract"
  

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