Add reusable workflow for setting up SSH agent

.github/workflows/ssh.yml

@@ -0,0 +1,30 @@
+name: Set up SSH agent
+
+on:
+ workflow_call:
+ inputs:
+ config:
+ required: true
+ type: string
+ known-hosts:
+ required: true
+ type: string
+ secrets:
+ key:
+ required: true
+
+env:
+ SSH_AUTH_SOCK: /tmp/ssh-agent.sock
+
+jobs:
+ ssh-agent:
+ runs-on: ubuntu-latest
+
+ steps:
+ - name: Set up SSH agent
+ run: |
+ ssh-agent -a $SSH_AUTH_SOCK > /dev/null
+ ssh-add - <<< "${{ secrets.key }}"
+ mkdir -p ~/.ssh
+ echo '${{ inputs.config }}' > ~/.ssh/config
+ echo '${{ inputs.known-hosts }}' > ~/.ssh/known_hosts