name: "ssh-setup"
description: "add a private ssh key"
inputs:
  run-as:
    default: "root"
    description: "user to create ssh keys for"
    required: false
  ssh-key:
    description: "private ssh key"
    required: true
  add-hosts:
    description: "~/.ssh/known_hosts"
    required: false
runs:
  using: composite
  steps:
    - name: mkdir -p ~/.ssh
      shell: bash
      run: su ${{ inputs.run-as }} -c "mkdir -p ~/.ssh"
    - name: add hosts
      shell: bash
      run: su ${{ inputs.run-as }} -c "echo \"${{ inputs.add-hosts }}\" | xargs ssh-keyscan > ~/.ssh/known_hosts"
    - name: add ssh key
      shell: bash
      run: |
        su ${{ inputs.run-as }} -c "echo \"${{ inputs.ssh-key }}\" | tr -d \"\r\" > ~/.ssh/id_ed25519"
        chmod -R 600 /home/${{ inputs.run-as }}/.ssh
        chmod 755 /home/${{ inputs.run-as }}/.ssh