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Local development instructions: With Docker (recommended)

The following guide utilizes docker and docker-compose to run select services required for Studio to function. It's our recommended setup. However, if you would rather install these services on your host, please follow the host-setup guide.

Prerequisites

Please install these prerequisites, or alternatives for setting up your local development environment:

Build your python virtual environment

To determine the preferred version of Python, you can check the runtime.txt file:

$ cat runtime.txt
# This is the required version of Python to run Studio currently.
# This is determined by the default Python 3 version that is installed
# inside Ubuntu Bionic, which is used to build images for Studio.
# We encode it here so that it can be picked up by Github's dependabot
# to manage automated package upgrades.
python-3.10.13

Use pyenv to install the version of Python listed in that file, and to also set up a virtual environment:

pyenv install 3.10.13
pyenv virtualenv 3.10.13 studio-py3.10
pyenv activate studio-py3.10

Now you may install Studio's Python dependencies:

pip install -r requirements.txt -r requirements-dev.txt

To deactivate the virtual environment, when you're finished developing on Studio for the time being:

pyenv deactivate

A note about dependencies on Apple Silicon M1+

If you run into an error with pip install related to the grcpio package, it is because it currently does not support M1 with the version for grcpio Studio uses. In order to fix it, you will need to add the following environmental variables before running pip install:

export GRPC_PYTHON_BUILD_SYSTEM_OPENSSL=1
export GRPC_PYTHON_BUILD_SYSTEM_ZLIB=1
export CFLAGS="-I/opt/homebrew/opt/openssl/include"
export LDFLAGS="-L/opt/homebrew/opt/openssl/lib"

Install frontend dependencies

Install the version of node.js supported by Studio, and install yarn version 1.x:

volta install node@16
volta install yarn@1

After installing yarn, you may now install frontend dependencies:

yarn install

Install and run services

Studio requires some background services to be running:

  • Minio - a local S3 storage emulation
  • PostgreSQL (postgres) - a relational database
  • Redis - a fast key/value store useful for caching
  • Celery - the task manager and executor, which relies on the Studio codebase

Generally speaking, you'll want to open a separate terminal/terminal-tab to run the services. With docker and docker-compose installed, running the above services is as easy as:

make run-services

The above command may take longer the first time it's run. It includes starting the celery workers, and the other dependent services through docker, which can be done separately with the following two commands:

make dcservicesup
make devceleryworkers

To confirm that docker-based services are running, you should see three containers when executing docker ps. For example:

> docker ps
CONTAINER ID        IMAGE                             COMMAND                  CREATED             STATUS              PORTS                    NAMES
e09c5c203b93        redis:6.0.9                       "docker-entrypoint.s…"   51 seconds ago      Up 49 seconds       0.0.0.0:6379->6379/tcp   studio_vue-refactor_redis_1
6164371efb6b        minio/minio                       "minio server /data"     51 seconds ago      Up 49 seconds       0.0.0.0:9000->9000/tcp   studio_vue-refactor_minio_1
c86bbfa3a59e        postgres:12.10                      "docker-entrypoint.s…"   51 seconds ago      Up 49 seconds       0.0.0.0:5432->5432/tcp   studio_vue-refactor_postgres_1

To stop the services, press Ctrl + C in the terminal where you ran make run-services (or dcservicesup). Once you've done that, you may run the following command to remove the docker containers (they will be recreated when you run run-services or dcservicesup again):

make dcservicesdown

Initializing Studio

With the services running, in a separate terminal/terminal-tab, we can now initialize the database for Studio development purposes. The command below will initialize the database tables, import constants, and a user account for development:

yarn run devsetup

Running the development server

With the services running, in a separate terminal/terminal-tab, and the database initialized, we can start the dev server:

yarn run devserver:hot  # with Vue hot module reloading
# or
yarn run devserver  # without hot module reloading

Either of the above commands will take a few moments to build the frontend. When it finishes, you can sign in with the account created by the yarn run devsetup command:

Running the celery service

Studio uses celery for executing asynchronous tasks, which are integral to Studio's channel editing architecture. The celery service does not reload when there are Python changes like the Django devserver does, so it's often preferred to run it separately. If you are developing changes against a task or the celery configuration, you'll need to use make dcservicesup to run only the docker-based services.

In a separate terminal/terminal-tab, run the following to start the service and press Ctrl + C to stop it:

make devceleryworkers

Stop and restart the above to reload your changes.