Python: Configure SSH keys

This documentation is part of the Deploy with GitHub Actions guide. You can view the complete guide here: How to deploy your Python code using GitHub Actions.

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SSH keys allow GitHub Actions to securely connect to your Python service for code deployment. This step is essential for protecting your Stackhero services.

On your computer, you can generate new SSH keys by running:

ssh-keygen -C "" -f /tmp/ssh_key -N ""

Add the public key

First, display the public key you have just generated:

cat /tmp/ssh_key.pub

Next, in your Stackhero dashboard, select your "production" Python service and click the "Configure" button.

Get service settings

Follow these steps:

1. Under SSH public keys, click on Add a public key.
2. For Description, enter GitHub Action.
3. For Key, paste the public key you have just copied.

Add public key

Add the private key

Go to your GitHub project page, click on Settings, then Environments. Choose New environment.

Configuring GitHub environments

In the Name field, type "production" and confirm.

Setting the environment

Click on the No restriction button and select Selected branches and tags.

Setting environment restrictions

Then, click on Add deployment branch or tag rule, enter "production" in the Name pattern field, and click Add rule.

Setting environment branch Setting environment branch

In the Environment secrets section, click Add secret.

Add secret

Now, display the private key you generated earlier:

cat /tmp/ssh_key

In the secret setup, use STACKHERO_SSH_PRIVATE_KEY as the Name and paste the private key as the Value.

Setting the SSH private key secret

Next, in the Environment variables section, click on Add variable.

Setting variables

Enter STACKHERO_ENDPOINT as the Name and paste your Python service endpoint as the Value. You will find this endpoint in your Stackhero dashboard.

Setting the endpoint variable

If you have customised your service's domain name, use the customised version instead of <XXXXXX>.stackhero-network.com.

Delete the generated keys

For security reasons, it is advisable to delete the SSH keys from your computer now, as you will not need them anymore:

rm /tmp/ssh_key /tmp/ssh_key.pub