stack-orchestrator/docs/CONTRIBUTING.md

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# Contributing
Thank you for taking the time to make a contribution to Stack Orchestrator.
## Install (developer mode)
Suitable for developers either modifying or debugging the orchestrator Python code:
### Prerequisites
In addition to the pre-requisites listed in the [README](/README.md), 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 python3.10-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. (This and the next step can be done by running `source ./scripts/developer-mode-setup.sh`)
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](https://github.com/linkedin/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...
```
For cutting releases, use the [shiv build script](/scripts/build_shiv_package.sh).