Adeel Shakir
08/01/2024, 8:16 AMMarvin
08/01/2024, 8:17 AMpip install prefect
2. Create a worker configuration:
You'll need to configure your worker to interact with your Prefect Cloud workspace.
3. Start the worker:
Start the worker with the appropriate configuration to link it to your Cloud workspace.
Let's dig into the specifics:
First, let's search the Prefect documentation for the relevant steps and any Prefect workers example code. I'll perform a search for the necessary information.
To use your AWS EC2 instance as a worker for Prefect Cloud, follow these steps:
1. Prerequisites:
- Ensure you have an AWS account with permissions to create ECS services and IAM roles.
- Install the AWS CLI on your EC2 instance.
2. Install Prefect:
pip install prefect
3. Configure the Worker:
- Set up your Prefect API key and URL as environment variables:
export PREFECT_API_URL='<https://api.prefect.cloud/api/accounts/<ACCOUNT-ID>/workspaces/<WORKSPACE-ID>>'
export PREFECT_API_KEY='<YOUR-API-KEY>'
4. Start the Worker:
- Register and start the worker using Prefect commands on your EC2 instance:
prefect worker start
You can follow this tutorial on Prefect's AWS ECS integration to get additional examples and a detailed setup guide.
For a basic Prefect flow code example:
from prefect import flow
@flow(log_prints=True) # send `print` statements as INFO logs
def my_workflow():
print("I can call any python code here, including prefect tasks or flows")
if __name__ == "__main__":
my_workflow() # call it like a normal python function
# or serve it as a long-lived process
# my_workflow.serve("my-deployment-name")
You can find more details on integrating Prefect with various cloud providers here.
If you need any specific steps or run into issues, please let me know!Adeel Shakir
08/01/2024, 8:20 AMPREFECT_API_URL
points to app.prefect.cloud
. Did you mean api.prefect.cloud
?
PREFECT_API_URL
uses /account/
but should use /accounts/
.
PREFECT_API_URL
uses /workspace/
but should use /workspaces/
.
PREFECT_API_URL
should have /api
after the base URL.
e.g. PREFECT_API_URL="https://api.prefect.cloud/api/accounts/[ACCOUNT-ID]/workspaces/[WORKSPACE-ID]"
values = warn_on_misconfigured_api_url(values)
Work pool name:Marvin
08/01/2024, 8:21 AMPREFECT_API_URL
you set is slightly off. The URL should be in the format:
<https://api.prefect.cloud/api/accounts/[ACCOUNT-ID]/workspaces/[WORKSPACE-ID]>
Here’s what you need to do:
1. Ensure your PREFECT_API_URL
is correctly set:
Replace:
- <ACCOUNT-ID>
with your actual account ID.
- <WORKSPACE-ID>
with your actual workspace ID.
- <YOUR-API-KEY>
with your actual API key.
Update your .bashrc
or .bash_profile
(or set manually in the shell):
export PREFECT_API_URL='<https://api.prefect.cloud/api/accounts/<ACCOUNT-ID>/workspaces/<WORKSPACE-ID>>'
export PREFECT_API_KEY='<YOUR-API-KEY>'
2. Start the Worker:
When prompted for the work pool name, you need to enter the name of the work pool that you've configured in your Prefect Cloud UI.
To retrieve the correct work pool name:
- Go to your Prefect Cloud dashboard.
- Navigate to the work pool section and note the exact name of the work pool you want your worker to join.
Here’s an example command to start the worker:
prefect worker start --pool "your-work-pool-name"
If these steps are still unclear or if you face issues, please provide the exact error messages or symptoms, and I can help further!