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Stack Orchestrator

Stack Orchestrator allows building and deployment of a Laconic stack on a single machine with minimial prerequisites.

Setup

User Mode

User mode runs the orchestrator from a "binary" single-file release and does not require special Python environment setup. Use this mode unless you plan to make changes to the orchestrator source code.

Prerequisites

Stack Orchestrator is a Python3 CLI tool that runs on any OS with Python3 and Docker. Tested on: Ubuntu 20/22.

Ensure that the following are already installed:

  1. Python3 (the stock Python3 version available in Ubuntu 20 and 22 is suitable)
    $ python3 --version
    Python 3.8.10
    
  2. Docker (Install a current version from dockerco, don't use the version from any Linux distro)
    $ docker --version
    Docker version 20.10.17, build 100c701
    
  3. If installed from regular package repository (not Docker Desktop), BE AWARE that the compose plugin may need to be installed, as well.
    DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}
    mkdir -p $DOCKER_CONFIG/cli-plugins
    curl -SL https://github.com/docker/compose/releases/download/v2.11.2/docker-compose-linux-x86_64 -o $DOCKER_CONFIG/cli-plugins/docker-compose
    chmod +x ~/.docker/cli-plugins/docker-compose
    
    # see https://docs.docker.com/compose/install/linux/#install-the-plugin-manually for further details
    # or to install for all users.
    

Install

  1. Download the latest release from this page, into a suitable directory (e.g. ~/bin):
    $ cd ~/bin
    $ curl https://github.com/cerc-io/stack-orchestrator/releases/download/v1.0.3-alpha/laconic-so
    
  2. Ensure laconic-so is on the PATH
  3. Verify operation:
    $ ~/bin/laconic-so --help
    Usage: python -m laconic-so [OPTIONS] COMMAND [ARGS]...
    
      Laconic Stack Orchestrator
    
    Options:
      --quiet
      --verbose
      --dry-run
      --local-stack
      -h, --help     Show this message and exit.
    
    Commands:
      build-containers    build the set of containers required for a complete...
      deploy-system       deploy a stack
      setup-repositories  git clone the set of repositories required to build...
    

Developer mode

Suitable for developers either modifying or debugging the orchestrator Python code:

Prerequisites

In addition to the binary install prerequisites listed above, the following are required:

  1. Python venv package This may or may not be already installed depending on the host OS and version. Check by running:
    $ python3 -m venv
    usage: venv [-h] [--system-site-packages] [--symlinks | --copies] [--clear] [--upgrade] [--without-pip] [--prompt PROMPT] ENV_DIR [ENV_DIR ...]
    venv: error: the following arguments are required: ENV_DIR
    
    If the venv package is missing you should see a message indicating how to install it, for example with:
    $ apt install python3.8-venv
    

Install

  1. Clone this repository:
    $ git clone (https://github.com/cerc-io/stack-orchestrator.git
    
  2. Enter the project directory:
    $ cd stack-orchestrator
    
  3. Create and activate a venv:
    $ python3 -m venv venv
    $ source ./venv/bin/activate
    (venv) $
    
  4. Install the cli in edit mode:
    $ pip install --editable .
    
  5. Verify installation:
    (venv) $ laconic-so
    Usage: laconic-so [OPTIONS] COMMAND [ARGS]...
    
     Laconic Stack Orchestrator
    
    Options:
     --quiet
     --verbose
     --dry-run
     -h, --help  Show this message and exit.
    
    Commands:
     build-containers    build the set of containers required for a complete...
     deploy-system       deploy a stack
     setup-repositories  git clone the set of repositories required to build...
    

Build a zipapp (single file distributable script)

Use shiv to build a single file Python executable zip archive of laconic-so:

  1. Install shiv:
    $ (venv) pip install shiv
    $ (venv) pip install wheel
    
  2. Run shiv to create a zipapp file:
    $ (venv)  shiv -c laconic-so -o laconic-so .
    
    This creates a file ./laconic-so that is executable outside of any venv, and on other machines and OSes and architectures, and requiring only the system Python3:
  3. Verify it works:
    $ cp stack-orchetrator/laconic-so ~/bin
    $ laconic-so
       Usage: python -m laconic-so [OPTIONS] COMMAND [ARGS]...
    
       Laconic Stack Orchestrator
    
    Options:
       --quiet
       --verbose
       --dry-run
       -h, --help  Show this message and exit.
    
    Commands:
       build-containers    build the set of containers required for a complete...
       deploy-system       deploy a stack
       setup-repositories  git clone the set of repositories required to build...
    

CI Mode

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Usage

There are three sub-commands: setup-repositories, build-containers and deploy-system that are generally run in order:

Note: $ laconic-so will run the version installed to ~/bin, while ./laconic-so can be invoked to run locally built version in a checkout

Setup Repositories

Clones the set of git repositories necessary to build a system.

Note: the use of ssh-agent is recommended in order to avoid entering your ssh key passphrase for each repository.

$ laconic-so --verbose setup-repositories #this will default to ~/cerc or CERC_REPO_BASE_DIR from an env file
#$ ./laconic-so --verbose --local-stack setup-repositories #this will use cwd ../ as dev_root_path

Build Containers

Builds the set of docker container images required to run a system. It takes around 10 minutes to build all the containers from cold.

$ laconic-so --verbose build-containers #this will default to ~/cerc or CERC_REPO_BASE_DIR from an env file
#$ ./laconic-so --verbose --local-stack build-containers #this will use cwd ../ as dev_root_path

Deploy System

Uses docker compose to deploy a system.

Use ---include <list of components> to deploy a subset of all containers:

$ laconic-so --verbose deploy-system --include db-sharding,contract,ipld-eth-server,go-ethereum-foundry up
$ laconic-so --verbose deploy-system --include db-sharding,contract,ipld-eth-server,go-ethereum-foundry down

Note: deploy-system command interacts with most recently built container images.

Platform Support

Native aarm64 is not currently supported. x64 emulation on ARM64 macos should work (not yet tested).

Implementation

The orchestrator's operation is driven by files shown below. repository-list.txt container the list of git repositories; container-image-list.txt contains the list of container image names, while clister-list.txt specifies the set of compose components (corresponding to individual docker-compose-xxx.yml files which may in turn specify more than one container). Files required to build each container image are stored under ./container-build/<container-name> Files required at deploy-time are stored under ./config/<component-name>

├── pod-list.txt
├── compose
│   ├── docker-compose-contract.yml
│   ├── docker-compose-db-sharding.yml
│   ├── docker-compose-db.yml
│   ├── docker-compose-eth-statediff-fill-service.yml
│   ├── docker-compose-go-ethereum-foundry.yml
│   ├── docker-compose-ipld-eth-beacon-db.yml
│   ├── docker-compose-ipld-eth-beacon-indexer.yml
│   ├── docker-compose-ipld-eth-server.yml
│   ├── docker-compose-lighthouse.yml
│   └── docker-compose-prometheus-grafana.yml
├── config
│   └── ipld-eth-server
├── container-build
│   ├── cerc-eth-statediff-fill-service
│   ├── cerc-go-ethereum
│   ├── cerc-go-ethereum-foundry
│   ├── cerc-ipld-eth-beacon-db
│   ├── cerc-ipld-eth-beacon-indexer
│   ├── cerc-ipld-eth-db
│   ├── cerc-ipld-eth-server
│   ├── cerc-lighthouse
│   └── cerc-test-contract
├── container-image-list.txt
├── repository-list.txt

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