215 lines
8.0 KiB
Markdown
215 lines
8.0 KiB
Markdown
# Stack Orchestrator
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Stack Orchestrator allows building and deployment of a Laconic stack on a single machine with minimial prerequisites.
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## Setup
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### User Mode
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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.
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#### Prerequisites
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Stack Orchestrator is a Python3 CLI tool that runs on any OS with Python3 and Docker. Tested on: Ubuntu 20/22.
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Ensure that the following are already installed:
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1. Python3 (the stock Python3 version available in Ubuntu 20 and 22 is suitable)
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```
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$ python3 --version
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Python 3.8.10
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```
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2. Docker (Install a current version from dockerco, don't use the version from any Linux distro)
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```
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$ docker --version
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Docker version 20.10.17, build 100c701
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```
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3. If installed from regular package repository (not Docker Desktop), BE AWARE that the compose plugin may need to be installed, as well.
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```
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DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}
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mkdir -p $DOCKER_CONFIG/cli-plugins
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curl -SL https://github.com/docker/compose/releases/download/v2.11.2/docker-compose-linux-x86_64 -o $DOCKER_CONFIG/cli-plugins/docker-compose
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chmod +x ~/.docker/cli-plugins/docker-compose
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# see https://docs.docker.com/compose/install/linux/#install-the-plugin-manually for further details
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# or to install for all users.
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```
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#### Install
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1. Download the latest release from [this page](https://github.com/cerc-io/stack-orchestrator/tags), into a suitable directory (e.g. `~/bin`):
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```
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$ cd ~/bin
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$ curl https://github.com/cerc-io/stack-orchestrator/releases/download/v1.0.1-alpha/laconic-so
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```
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1. Ensure `laconic-so` is on the `PATH`
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1. Verify operation:
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```
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$ ~/bin/laconic-so --help
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Usage: python -m laconic-so [OPTIONS] COMMAND [ARGS]...
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Laconic Stack Orchestrator
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Options:
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--quiet
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--verbose
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--dry-run
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--local-stack
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-h, --help Show this message and exit.
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Commands:
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build-containers build the set of containers required for a complete...
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deploy-system deploy a stack
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setup-repositories git clone the set of repositories required to build...
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```
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### Developer mode
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Suitable for developers either modifying or debugging the orchestrator Python code:
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#### Prerequisites
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In addition to the binary install prerequisites listed above, the following are required:
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1. Python venv package
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This may or may not be already installed depending on the host OS and version. Check by running:
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```
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$ python3 -m venv
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usage: venv [-h] [--system-site-packages] [--symlinks | --copies] [--clear] [--upgrade] [--without-pip] [--prompt PROMPT] ENV_DIR [ENV_DIR ...]
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venv: error: the following arguments are required: ENV_DIR
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```
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If the venv package is missing you should see a message indicating how to install it, for example with:
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```
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$ apt install python3.8-venv
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```
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#### Install
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1. Clone this repository:
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```
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$ git clone (https://github.com/cerc-io/stack-orchestrator.git
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```
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4. Enter the project directory:
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```
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$ cd stack-orchestrator
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```
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5. Create and activate a venv:
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```
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$ python3 -m venv venv
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$ source ./venv/bin/activate
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(venv) $
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```
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6. Install the cli in edit mode:
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```
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$ pip install --editable .
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```
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7. Verify installation:
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```
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(venv) $ laconic-so
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Usage: laconic-so [OPTIONS] COMMAND [ARGS]...
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Laconic Stack Orchestrator
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Options:
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--quiet
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--verbose
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--dry-run
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-h, --help Show this message and exit.
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Commands:
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build-containers build the set of containers required for a complete...
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deploy-system deploy a stack
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setup-repositories git clone the set of repositories required to build...
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```
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#### Build a zipapp (single file distributable script)
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Use shiv to build a single file Python executable zip archive of laconic-so:
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1. Install [shiv](https://github.com/linkedin/shiv):
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```
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$ (venv) pip install shiv
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$ (venv) pip install wheel
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```
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1. Run shiv to create a zipapp file:
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```
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$ (venv) shiv -c laconic-so -o laconic-so .
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```
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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:
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1. Verify it works:
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```
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$ cp stack-orchetrator/laconic-so ~/bin
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$ laconic-so
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Usage: python -m laconic-so [OPTIONS] COMMAND [ARGS]...
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Laconic Stack Orchestrator
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Options:
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--quiet
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--verbose
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--dry-run
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-h, --help Show this message and exit.
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Commands:
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build-containers build the set of containers required for a complete...
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deploy-system deploy a stack
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setup-repositories git clone the set of repositories required to build...
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```
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### CI Mode
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_write-me_
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## Usage
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There are three sub-commands: `setup-repositories`, `build-containers` and `deploy-system` that are generally run in order:
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Note: $ laconic-so will run the version installed to ~/bin, while ./laconic-so can be invoked to run locally built
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version in a checkout
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### Setup Repositories
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Clones the set of git repositories necessary to build a system.
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Note: the use of `ssh-agent` is recommended in order to avoid entering your ssh key passphrase for each repository.
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```
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$ laconic-so --verbose setup-repositories #this will default to ~/cerc or CERC_REPO_BASE_DIR from an env file
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#$ ./laconic-so --verbose --local-stack setup-repositories #this will use cwd ../ as dev_root_path
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```
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### Build Containers
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Builds the set of docker container images required to run a system. It takes around 10 minutes to build all the containers from cold.
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```
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$ laconic-so --verbose build-containers #this will default to ~/cerc or CERC_REPO_BASE_DIR from an env file
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#$ ./laconic-so --verbose --local-stack build-containers #this will use cwd ../ as dev_root_path
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```
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### Deploy System
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Uses `docker compose` to deploy a system.
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Use `---include <list of components>` to deploy a subset of all containers:
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```
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$ laconic-so --verbose deploy-system --include db-sharding,contract,ipld-eth-server,go-ethereum-foundry up
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```
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```
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$ laconic-so --verbose deploy-system --include db-sharding,contract,ipld-eth-server,go-ethereum-foundry down
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```
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Note: deploy-system command interacts with most recently built container images.
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## Platform Support
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Native aarm64 is _not_ currently supported. x64 emulation on ARM64 macos should work (not yet tested).
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## Implementation
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The orchestrator's operation is driven by files shown below. `repository-list.txt` container the list of git repositories; `container-image-list.txt` contains
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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).
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Files required to build each container image are stored under `./container-build/<container-name>`
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Files required at deploy-time are stored under `./config/<component-name>`
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```
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├── pod-list.txt
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├── compose
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│ ├── docker-compose-contract.yml
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│ ├── docker-compose-db-sharding.yml
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│ ├── docker-compose-db.yml
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│ ├── docker-compose-eth-statediff-fill-service.yml
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│ ├── docker-compose-go-ethereum-foundry.yml
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│ ├── docker-compose-ipld-eth-beacon-db.yml
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│ ├── docker-compose-ipld-eth-beacon-indexer.yml
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│ ├── docker-compose-ipld-eth-server.yml
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│ ├── docker-compose-lighthouse.yml
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│ └── docker-compose-prometheus-grafana.yml
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├── config
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│ └── ipld-eth-server
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├── container-build
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│ ├── cerc-eth-statediff-fill-service
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│ ├── cerc-go-ethereum
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│ ├── cerc-go-ethereum-foundry
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│ ├── cerc-ipld-eth-beacon-db
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│ ├── cerc-ipld-eth-beacon-indexer
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│ ├── cerc-ipld-eth-db
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│ ├── cerc-ipld-eth-server
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│ ├── cerc-lighthouse
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│ └── cerc-test-contract
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├── container-image-list.txt
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├── repository-list.txt
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```
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_write-more-of-me_
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