I built my own image for using Git storage with ssh by doing what the docs said

FROM prefecthq/prefect:latest
RUN apt update && apt install -y openssh-client

However now I get this every run

Failed to load and execute Flow's environment: HangupException('Host key verification failed.\r')

I created a known_hosts file by adding this to the Dockerfile but it didn't help.

RUN mkdir ~/.ssh && ssh-keyscan -t rsa <http://github.com|github.com> >> ~/.ssh/known_hosts

Any thoughts?

according to the docs: SSH keys should be mounted to the /root/.ssh directory. It looks like you’re mounting them to the working directory, which I think by default in Prefect images is /opt/prefect/

that is what we're doing

yeah, some clients require SSH keys to be in a specific format. I’m no SSH expert, but you could look around what type of key is required by the openssh-client package

you and me both 🙂

it’s hard to test it for me because I don’t use SSH, nor Server, but perhaps you can test the entire set up from scratch this way: • (optional) generate a key https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent • (optional) adding this key to Github or other Git server you use • run your prefect image interactively (this image must be based on PrefectHQ image + the openssh client):

docker run -it your_image bash

• manually clone the repo from the interactive terminal in the container: git clone <ssh repo url> to see if this works

that's what I was going to try but the image doesn't have

git

on it. I have one other thing to test before installing git and going down that path. Thanks