name: SSH 준비
description: SSH 키를 설정하고 호스트를 known_hosts에 추가하는 스크립트

inputs:
  ssh-key:
    required: true
  host:
    required: true
  port:
    required: false
    default: "22"
  key-path:
    required: false
    default: ~/.ssh/deploy_key

runs:
  using: composite
  steps:
    - shell: bash
      run: |
        set -eu

        mkdir -p ~/.ssh
        chmod 700 ~/.ssh

        printf '%s\n' "${{ inputs.ssh-key }}" > ${{ inputs.key-path }}
        chmod 600 ${{ inputs.key-path }}

        ssh-keyscan -p ${{ inputs.port }} -H "${{ inputs.host }}" >> ~/.ssh/known_hosts