Erik Forsman
10/09/2024, 2:22 PMMarvin
10/09/2024, 2:24 PMPREFECT_API_URL
environment variable appropriately. For Windows and macOS, you might set it to <http://host.docker.internal:4200/api>
. If you are on Linux, set it to <http://localhost:4200/api>
and use the --network="host"
option.
2. Run the Docker command: Use a command like:
docker run --network="host" -e PREFECT_API_URL=<http://host.docker.internal:4200/api> prefect-docker-guide-image
This ensures that your flow container communicates with the Prefect API.
Useful link to guide on Docker image deployment: Prefect 2.x Docker Guide
For Prefect 3.x:
1. Set up a PostgreSQL instance: Prefect 3.x may require a PostgreSQL database. Create a Docker container for PostgreSQL:
docker run -d --name prefect-postgres -v prefectdb:/var/lib/postgresql/data -p 5432:5432 -e POSTGRES_USER=postgres -e POSTGRES_PASSWORD=yourTopSecretPassword -e POSTGRES_DB=prefect postgres:latest
This command creates a database prefect
with the specified user and password.
2. Configure Prefect to use the PostgreSQL database: Set your Prefect configuration to use this database connection URL:
prefect config set PREFECT_API_DATABASE_CONNECTION_URL="<postgresql+asyncpg://postgres:yourTopSecretPassword@localhost:5432/prefect>"
Useful link to self-hosting guide for Prefect 3.x: Prefect 3.0 Manage Self-Host
These steps should help you get the Prefect server running in a Docker container, but be aware that specific details may vary based on your operating system or specific setup requirements.Erik Forsman
10/09/2024, 2:33 PMMarvin
10/09/2024, 2:33 PMprefect config set PREFECT_API_URL="http://<your-prefect-cloud-url>/api"
- More details are available at the Prefect Hosting Guide.
### Prefect 3.x
1. Using Docker and Kubernetes:
- Prefect 3.x can benefit greatly from using Docker for containerizing applications. Use Kubernetes to manage and orchestrate these containers in the cloud.
- Start by storing your flow code and dependencies in a Docker image, and deploy it on Kubernetes as documented here.
2. Prefect Cloud Configuration:
- Connect to Prefect Cloud by creating an API key and setting it in your cloud infrastructure.
- Ensure your Prefect client in the container is pointed to the correct server using:
prefect config set PREFECT_API_URL=http://<your-prefect-server-IP>:4200
3. Leveraging Cloud Storage:
- Use cloud storage solutions like AWS S3, Azure Blob Storage, or GCP GCS buckets to store your Prefect flow code. Configure these in your prefect.yaml
.
These steps allow you to smoothly host and manage Prefect Server in the cloud, taking advantage of cloud orchestration and storage solutions to scale efficiently. For more detailed guidance, you can visit the Prefect 3.0 Kubernetes Guide or the Prefect 3.0 Deployment Guide.