cello

1. System Requirement

• Hardware: 4c8g100g
• Linux Kernel >= 3.0.0
• Docker engine: 20.10.17+
• docker compose: 2.6.1+

2. Setup Steps

2.1 Clone source code

$ git clone https://github.com/hyperledger/cello.git

2.2 Prepare environment

1. docker how install
2. docker compose (we switched to Docker Compose V2) how install
3. make all script for cello service management is written in Makefile
4. kubernetes (optional) how install
5. node how install

As Docker Compose V1 will reach its end of life in April 2023, we switched Docker Compose to V2. Please ensure that you install the correct version.

2.3 Build local images(optional)

• Because currently the dockerhub image auto build haven’t ready, in the future you can ignore this step.
  • Build API Engine

    $ make api-engine
    

  • Build Docker Agent

    $ make docker-rest-agent
    

  • Build Docker Dashboard

    $ make dashboard
    

2.4 Start service

• Start cello service.

  $ make start
  

3. Troubleshoot

3.1 Error after running make start

• Mounts denied error when using Docker Desktop
  • Error message:

    Error response from daemon: Mounts denied:
    The path /opt/cello is not shared from the host and is not known to Docker.
    You can configure shared paths from Docker -> Preferences... -> Resources -> File Sharing.
    See https://docs.docker.com/ for more info.
    make[1]: *** [Makefile:215: start-docker-compose] Error 1
    

  • Solution:

    $ sudo mkdir /opt/cello
          
    # Then go to Docker Desktop -> Preferences... -> Resources -> File Sharing
    # Add the path /opt/cello into the File Sharing list, apply the change and restart Docker Desktop
    

• Operation not permitted when using Docker Desktop
  • Error message:

    Error response from daemon: 
    error while creating mount source path '/opt/cello/pgdata': mkdir /opt/cello/pgdata: permission denied
    make: *** [start-docker-compose] Error 1
    

  • Solution:

    $ sudo chmod -R 777 /opt/cello
          
    # Then go to Docker Desktop -> Preferences... -> General -> Choose file sharing implementation for your containers
    # Choose osxfs, apply the change and restart Docker Desktop
    

3.2 Unable to register

• Docker has no access to the folder /opt/cello
  • Error message in HTTP response:

    msg	[ "CryptoConfig create failed for [Errno 2] No such file or directory: '/opt/cello/${your organization name}/crypto-config.yaml'!" ]
    

  • First try

    $ sudo make start
    

  • If there is any error or you still cannot register, change the permission of the folder

    $ sudo chown -R !(whoami): /opt/cello
    

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