Hi everyone, I have an issue launching prefect ser...
# prefect-serverj
Julio Venegas
12/10/2020, 3:35 PMHi everyone, I have an issue launching prefect server from an EC2 instance, when I access the dashboard, it won’t load anything. Anyone had this issue before?
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Zanie
12/10/2020, 3:50 PM
Does the API connection indicator in the top right show that you are successfully connected?
Zanie
12/10/2020, 3:50 PM
Have you created the default tenant?
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Julio Venegas
12/10/2020, 3:58 PMHi Michael, checked the API connection, it isn’t “Couldn’t connect to Prefect Server at http://localhost:4200/graphql”
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Zanie
12/10/2020, 3:58 PM
Yep! So you’ll need to update the UI to point to the apollo deployment on your EC2 instance
Zanie
12/10/2020, 3:59 PM
If you go to the home page there be a tab that lets you set the api url
Zanie
12/10/2020, 3:59 PM
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Julio Venegas
12/10/2020, 4:01 PMyou mean this one?
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Zanie
12/10/2020, 4:01 PM
Yep!
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Julio Venegas
12/10/2020, 4:02 PMOk, so what is there to change, I have not made any changes to the default
config.tomlz
Zanie
12/10/2020, 4:02 PM
The box where it says “Prefect Server GraphQL endpoint”
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Julio Venegas
12/10/2020, 4:03 PMok ok, got it, let me try that out
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Zanie
12/10/2020, 4:03 PM
When you’re using the UI, your browser is sending requests directly to the API (pretty standard modern javascript) so your browser is trying to hit the api at
localhost:4200/graphqlj
Julio Venegas
12/10/2020, 4:07 PMThanks! It’s odd, because as part of my initial user-data script for the instance, I changed the toml so that the actual EC2 instance host is set for graphql
Julio Venegas
12/10/2020, 4:07 PMwill destroy the instance and recreate it, I probably have an issue changing the config.toml at launch
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Zanie
12/10/2020, 4:09 PM
Do you also update the
apollo_urlZanie
12/10/2020, 4:09 PM
Copy code
[server.ui]
host = "<http://localhost>"
port = "8080"
host_port = "8080"
endpoint = "${server.ui.host}:${server.ui.port}"
apollo_url = "<http://localhost:4200/graphql>"j
Julio Venegas
12/10/2020, 4:09 PMyep, exactly that line. Actually, I’m only changing that line.
Julio Venegas
12/10/2020, 4:15 PM@Zanie all good, I had a typo in user data script, it works now 😄
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Zanie
12/10/2020, 4:16 PM
Wonderful!
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Julio Venegas
12/10/2020, 4:16 PMThanks for the super fast help!!
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Chris White
12/10/2020, 4:21 PM
@Marvin archive “UI is blank after deploying Prefect Server from an EC2 instance”
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Marvin
12/10/2020, 4:21 PM3 Views