Adjust deployment action for self-hosted runners

Author: mudge

.github/actions/deploy-action/action.yml

@@ -5,10 +5,6 @@ inputs:
     description: "The private SSH key used to authenticate with the remote servers"
     required: true
 
-  public_bastion_host_keys:
-    description: "The public SSH host keys for the bastion server"
-    required: true
-
   bastion_host:
     description: "The [user@]hostname of the bastion server"
     required: true
@@ -33,7 +29,7 @@ runs:
   using: "composite"
   steps:
     - name: Configure ssh-agent for subsequent steps
-      run: echo "SSH_AUTH_SOCK=/tmp/ssh_agent.sock" >> $GITHUB_ENV
+      run: echo "SSH_AUTH_SOCK=${{ runner.temp }}/ssh_agent.sock" >> $GITHUB_ENV
       shell: bash
 
     - name: Start ssh-agent with SSH key
@@ -42,13 +38,6 @@ runs:
         ssh-add - <<< "${{ inputs.private_ssh_key }}"
       shell: bash
 
-    - name: Populate known hosts
-      run: |
-        mkdir -m 700 -p ~/.ssh
-        printf "${{ inputs.public_bastion_host_keys }}" >> ~/.ssh/known_hosts
-        chmod 600 ~/.ssh/known_hosts
-      shell: bash
-
     - name: Deploy to primary server
       run: rsync -avz --delete -e 'ssh -A ${{ inputs.bastion_host }} ssh' ${{ inputs.source }} ${{ inputs.primary_host }}:${{ inputs.destination }}
       shell: bash

.github/workflows/build-and-deploy.yml

@@ -57,7 +57,6 @@ jobs:
         uses: ./.github/actions/deploy-action
         with:
           private_ssh_key: ${{ secrets.DEPLOY_SSH_KEY }}
-          public_bastion_host_keys: ${{ secrets.DEPLOY_KNOWN_HOSTS }}
           bastion_host: ${{ secrets.DEPLOY_BASTION_HOST }}
           primary_host: ${{ secrets.DEPLOY_PRIMARY_HOST }}
           secondary_host: ${{ secrets.DEPLOY_SECONDARY_HOST }}