<@ULVA73B9P> I have prefect cloud and aws ec2 mach...
# ask-marvin
a
@Marvin I have prefect cloud and aws ec2 machine Now I want to use ec2 as agent worker with cloud prefect
m
Prefect has transitioned from agents to workers, so you'll want to configure a worker on your AWS EC2 instance to interact with Prefect Cloud. Here's a general step-by-step guide: 1. Install Prefect on your EC2 instance:
Copy code
pip 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:
Copy code
pip install prefect
3. Configure the Worker: - Set up your Prefect API key and URL as environment variables:
Copy code
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:
Copy code
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:
Copy code
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!
a
@Marvin prefect worker start /home/ubuntu/.local/share/pipx/venvs/prefect/lib/python3.12/site-packages/prefect/settings.py1849 UserWarning:
PREFECT_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:
m
It looks like the
PREFECT_API_URL
you set is slightly off. The URL should be in the format:
Copy code
<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):
Copy code
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:
Copy code
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!