README.md

CONUN BLOCKCHAIN MIDDLEWARE

Open config folder, use only json config files:

• connection-org1.json
• connection-org1.yaml
• connection-org2.json
• connection-org2.yaml

1. Import tlsCACerts Certificates into "connection-org1.json":

    "peers": {
        "peer0.org1.example.com": {
            "url": "grpcs://localhost:7051",
            "tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE----- 
                [get ca from conun blockchain network path:  project_path/artifacts/channel/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt]
                 -----END CERTIFICATE-----\n"
            },
            "grpcOptions": {
                "ssl-target-name-override": "peer0.org1.example.com",
                "hostnameOverride": "peer0.org1.example.com"
            }
        },
        "peer1.org1.example.com": {
            "url": "grpcs://localhost:8051",
            "tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE----- 
                [get ca from conun blockchain network path: project_path/artifacts/channel/crypto-config/peerOrganizations/org1.example.com/peers/peer1.org1.example.com/tls/ca.crt]
                 -----END CERTIFICATE-----\n"
            },
            "grpcOptions": {
                "ssl-target-name-override": "peer1.org1.example.com",
                "hostnameOverride": "peer1.org1.example.com"
            }
        }
    },
    "certificateAuthorities": {
        "ca.org1.example.com": {
            "url": "https://localhost:7054",
            "caName": "ca.org1.example.com",
            "tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE----- 
                [get ca from conun blockchain network path: project_path/artifacts/channel/crypto-config/peerOrganizations/org1.example.com/ca/ca.org1.example.com-cert.pem]
                 -----END CERTIFICATE-----\n"
            },
            "httpOptions": {
                "verify": false
            }
        }
    }
   

2. Import tlsCACerts Certificates into "connection-org2.json":

    "peers": {
        "peer0.org2.example.com": {
            "url": "grpcs://localhost:9051",
            "tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE----- 
                [get ca from conun blockchain network path: project_path/artifacts/channel/crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt]
                 -----END CERTIFICATE-----\n"
            },
            "grpcOptions": {
                "ssl-target-name-override": "peer0.org2.example.com",
                "hostnameOverride": "peer0.org2.example.com"
            }
        },
        "peer1.org2.example.com": {
            "url": "grpcs://localhost:10051",
            "tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE----- 
                [get ca from conun blockchain network path: project_path/artifacts/channel/crypto-config/peerOrganizations/org2.example.com/peers/peer1.org2.example.com/tls/ca.crt]
                 -----END CERTIFICATE-----\n"
            },
            "grpcOptions": {
                "ssl-target-name-override": "peer1.org2.example.com",
                "hostnameOverride": "peer1.org2.example.com"
            }
        }
    },
    "certificateAuthorities": {
        "ca.org2.example.com": {
            "url": "https://localhost:8054",
            "caName": "ca-org2",
            "tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE----- 
                [get ca from conun blockchain network path: project_path/artifacts/channel/crypto-config/peerOrganizations/org2.example.com/ca/ca.org2.example.com-cert.pem]
                 -----END CERTIFICATE-----\n"
            },
            "httpOptions": {
                "verify": false
            }
        }
    }
   

3. Install Package Dependencies and run network:

    npm install
   
    node app.js
   

4. Production Host gateway available:

    sudo nano /etc/hosts
   
    ex: 192.168.0.0 peer0.org1.example.com
   
    [blockchain_ip] peer0.org1.example.com
    [blockchain_ip] peer1.org1.example.com
    [blockchain_ip] orderer.example.com
    [blockchain_ip] peer0.org2.example.com
    [blockchain_ip] peer1.org2.example.com
    [blockchain_ip] orderer2.example.com
    [blockchain_ip] orderer3.example.com
    [blockchain_ip] ca.org1.example.com
    [blockchain_ip] ca.org2.example.com
    [blockchain_ip] ca_orderer       
   

5. Docker: 1 - Install:

   sudo apt-get update 
   sudo apt-get upgrade
   sudo apt install docker.io
   sudo systemctl start docker
   sudo systemctl enable docker
   sudo systemctl status docker
   docker --version

   2 - Switch user:

   sudo usermod -aG docker ${USER}
   su - ${USER}
   id -nG
   sudo usermod -aG docker addusernamehere

   NOTE: if you want to build only one image ther following cmd:

   3 - Build:

   docker build --tag conun-middleware-testnet-v3:0.1 .

   4 - Run Docker image:

   docker run -d -p 4040:4040 -v /home/conun/conun-middleware-testnet-v3/wallet:/conun-middleware-testnet-v3/wallet -it conun-middleware-testnet-v3:0.1

   5 - install editor inside docker:

   apt-get update && apt-get install nano

6. Docker Compose:

   sudo apt install docker-compose
   docker-compose --version

   1. Run Docker Compose

   docker-compose up       or          docker-compose up --build

   2. Stop Docker Compose

   docker-compose down

   3. Stop and Delete Docker Containers

   docker stop $(docker ps -aq) && docker rm $(docker ps -aq)

   4. Delete Docker Images

   docker rmi -f $(docker images -a -q)

   5. Check Decker

   docker ps       or      docker ps -a        or          docker images  

   6. If you need to go inside a container exec, you can use a command:

   docker exec -it <container id> /bin/bash

7. MONGODB

• installation doc

  Set user and password for mongod:

   mongod
   
   >-------------
   use admin
   >
   switched to db admin
   >
  
   db.createUser(
    {
     user: "admin",
     pwd: "password",
     roles: [ { role: "dbOwner", db: "db-name" } ]
    }
   )

  Network Binding:

  sudo ufw allow 27017
  

  sudo ufw allow from your_trusted_server_ip/32 to any port 27017
  

  To verify the changes in firewall settings, type:

  sudo ufw status
  

  Open the MongoDB configuration file in the editor:

  sudo nano /etc/mongod.conf
   
   >-----------------------------------------------------------------
   # mongod.conf
  
   # for documentation of all options, see:
   #   http://docs.mongodb.org/manual/reference/configuration-options/
  
   # Where and how to store data.
   # network interfaces
   net:
       port: 27017
       bindIp: 127.0.0.1   
  

  Add your server's IP address to net.bindIp:

  # network interfaces  
  net:
   port: 27017
   bindIp: 127.0.0.1,your_trusted_server_ip
  

  And restart

  sudo service mongod restart
  

  If you have issue with mongodb, run following cmd:

  chown -R mongodb:mongodb /var/lib/mongodb
  chown mongodb:mongodb /tmp/mongodb-27017.sock
  sudo systemctl enable mongod
  sudo service mongod restart
  sudo service mongod status

8. Check memory usage:

   htop