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app.py
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275
app.py
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#!/usr/bin/env python3
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import curses
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import json
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import os
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import subprocess
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from dataclasses import dataclass, asdict
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from pathlib import Path
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from typing import List, Tuple
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from deps import check_dependencies, install_dependencies
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PLAYBOOK_ROOT = Path("/playbook")
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DATA_DIR_NAME = "data"
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CONFIG_DIR = Path("config")
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HOSTS_FILE = CONFIG_DIR / "hosts.json"
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@dataclass
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class TargetHost:
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name: str # Anzeigename
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host: str # Host/IP
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user: str # Benutzername
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password: str # (optional, eher für SSH-Key-Setup gedacht)
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ssh_key_setup: bool
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is_local: bool = False
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def load_hosts() -> List[TargetHost]:
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CONFIG_DIR.mkdir(parents=True, exist_ok=True)
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if not HOSTS_FILE.exists():
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# Default: nur "lokal"
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hosts = [TargetHost(name="lokal", host="localhost", user=os.getenv("USER", "pi"),
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password="", ssh_key_setup=False, is_local=True)]
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save_hosts(hosts)
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return hosts
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with HOSTS_FILE.open("r", encoding="utf-8") as f:
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data = json.load(f)
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hosts = [TargetHost(**item) for item in data]
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# Falls keine lokalen dabei sind, Standard hinzufügen
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if not any(h.is_local for h in hosts):
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hosts.append(TargetHost(name="lokal", host="localhost",
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user=os.getenv("USER", "pi"),
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password="", ssh_key_setup=False, is_local=True))
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return hosts
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def save_hosts(hosts: List[TargetHost]) -> None:
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CONFIG_DIR.mkdir(parents=True, exist_ok=True)
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with HOSTS_FILE.open("w", encoding="utf-8") as f:
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json.dump([asdict(h) for h in hosts], f, indent=2)
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def collect_playbooks(root: Path) -> List[Tuple[str, Path, int]]:
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"""
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Sucht nach .yml/.yaml unterhalb von /playbook,
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ignoriert /playbook/data.
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Rückgabe: Liste aus (Anzeigetext, voller Pfad, Level)
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"""
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playbooks: List[Tuple[str, Path, int]] = []
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if not root.exists():
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return playbooks
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for dirpath, dirnames, filenames in os.walk(root):
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# /playbook/data ignorieren
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if Path(dirpath).name == DATA_DIR_NAME and Path(dirpath).parent == root:
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# Unterordner von /playbook/data auch überspringen
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dirnames[:] = []
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continue
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rel = Path(dirpath).relative_to(root)
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level = 0 if rel == Path(".") else len(rel.parts)
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for filename in filenames:
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if not (filename.endswith(".yml") or filename.endswith(".yaml")):
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continue
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full_path = Path(dirpath) / filename
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indent = " " * level
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display = f"{indent}{filename}"
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playbooks.append((display, full_path, level))
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return playbooks
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def run_playbook(playbook_path: Path, target: TargetHost, stdscr) -> None:
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"""
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Führt ansible-playbook aus und zeigt die Ausgabe in der TUI.
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Sehr einfache Variante, synchron/blockierend.
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"""
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stdscr.clear()
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stdscr.addstr(0, 0, f"Starte Playbook: {playbook_path}")
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stdscr.addstr(1, 0, f"Ziel: {target.name} ({'lokal' if target.is_local else target.host})")
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stdscr.refresh()
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cmd = ["ansible-playbook", str(playbook_path)]
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# Für Remote-Target könnte man ein Inventory oder --limit host ergänzen,
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# hier nur eine sehr simple Beispiel-Variante:
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if not target.is_local:
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# Erwartung: target.host ist im Inventory definiert
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cmd.extend(["-l", target.host])
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# Ausgabe direkt anzeigen
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try:
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proc = subprocess.Popen(
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cmd,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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text=True,
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)
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except FileNotFoundError:
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stdscr.addstr(3, 0, "Fehler: ansible-playbook wurde nicht gefunden.")
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stdscr.getch()
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return
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row = 3
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max_y, max_x = stdscr.getmaxyx()
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for line in proc.stdout:
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# Wenn zu weit unten, etwas nach oben "scrollen"
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if row >= max_y - 1:
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stdscr.scroll(1)
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row = max_y - 2
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stdscr.addstr(row, 0, line[: max_x - 1])
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row += 1
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stdscr.refresh()
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proc.wait()
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stdscr.addstr(row + 1, 0, "Playbook abgeschlossen. Taste drücken um zurückzukehren.")
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stdscr.refresh()
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stdscr.getch()
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def server_menu(stdscr, hosts: List[TargetHost], current_index: int) -> int:
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"""
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Einfaches Server-Menü:
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- Hosts auflisten
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- Auswahl mit Pfeiltasten
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- Enter = Host auswählen
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- N = neuen Host hinzufügen (sehr basic, text-basiert)
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Gibt den Index des ausgewählten Hosts zurück (oder unverändert bei Abbruch).
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"""
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curses.curs_set(0)
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selected = current_index
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while True:
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stdscr.clear()
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stdscr.addstr(0, 0, "Server / Zielsysteme")
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stdscr.addstr(1, 0, "↑/↓: Auswahl | Enter: wählen | n: neuen Host anlegen | q: zurück")
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row = 3
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for i, host in enumerate(hosts):
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prefix = "> " if i == selected else " "
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label = f"{host.name} ({'lokal' if host.is_local else host.host})"
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stdscr.addstr(row, 0, prefix + label)
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row += 1
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stdscr.refresh()
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key = stdscr.getch()
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if key in (curses.KEY_UP, ord('k')):
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selected = (selected - 1) % len(hosts)
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elif key in (curses.KEY_DOWN, ord('j')):
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selected = (selected + 1) % len(hosts)
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elif key in (ord('q'), 27): # q oder ESC
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return current_index
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elif key in (curses.KEY_ENTER, 10, 13):
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return selected
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elif key in (ord('n'), ord('N')):
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# sehr simple Eingabe über die Statuszeile
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curses.echo()
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stdscr.clear()
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stdscr.addstr(0, 0, "Neuen Host anlegen. Leere Eingabe = Abbruch.")
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stdscr.addstr(2, 0, "Anzeigename: ")
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name = stdscr.getstr(2, 13, 40).decode("utf-8").strip()
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if not name:
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curses.noecho()
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continue
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stdscr.addstr(3, 0, "Host/IP: ")
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host_ip = stdscr.getstr(3, 9, 40).decode("utf-8").strip()
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if not host_ip:
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curses.noecho()
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continue
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stdscr.addstr(4, 0, "Benutzer (default: pi): ")
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user = stdscr.getstr(4, 23, 40).decode("utf-8").strip() or "pi"
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stdscr.addstr(5, 0, "SSH-Key automatisch einrichten? (j/N): ")
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ssh_key_ans = stdscr.getstr(5, 39, 3).decode("utf-8").strip().lower()
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ssh_key_setup = ssh_key_ans == "j"
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curses.noecho()
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new_host = TargetHost(
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name=name,
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host=host_ip,
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user=user,
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password="",
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ssh_key_setup=ssh_key_setup,
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is_local=False,
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)
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hosts.append(new_host)
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save_hosts(hosts)
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selected = len(hosts) - 1
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def main_tui(stdscr):
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curses.curs_set(0)
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stdscr.nodelay(False)
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hosts = load_hosts()
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current_host_index = 0
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playbooks = collect_playbooks(PLAYBOOK_ROOT)
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selected_index = 0 if playbooks else -1
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while True:
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stdscr.clear()
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max_y, max_x = stdscr.getmaxyx()
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# Header
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current_host = hosts[current_host_index]
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header = f"TUI Ansible Installer – Ziel: {current_host.name} ({'lokal' if current_host.is_local else current_host.host})"
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stdscr.addstr(0, 0, header[: max_x - 1])
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# Hilfe
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help_line = "[↑/↓] Navigieren [Enter] Playbook ausführen [s] Server wählen [q] Beenden"
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stdscr.addstr(1, 0, help_line[: max_x - 1])
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# Playbooks zeichnen
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start_row = 3
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for i, (display, path, level) in enumerate(playbooks):
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row = start_row + i
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if row >= max_y - 1:
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break
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prefix = "➤ " if i == selected_index else " "
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line = f"{prefix}{display}"
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stdscr.addstr(row, 0, line[: max_x - 1])
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if not playbooks:
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stdscr.addstr(start_row, 0, f"Keine Playbooks unter {PLAYBOOK_ROOT} gefunden.")
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stdscr.refresh()
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key = stdscr.getch()
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if key in (ord('q'), 27): # q oder ESC
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break
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if key in (curses.KEY_UP, ord('k')):
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if playbooks:
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selected_index = (selected_index - 1) % len(playbooks)
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elif key in (curses.KEY_DOWN, ord('j')):
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if playbooks:
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selected_index = (selected_index + 1) % len(playbooks)
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elif key in (ord('s'), ord('S')):
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current_host_index = server_menu(stdscr, hosts, current_host_index)
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elif key in (curses.KEY_ENTER, 10, 13):
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if playbooks and selected_index >= 0:
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_, pb_path, _ = playbooks[selected_index]
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run_playbook(pb_path, hosts[current_host_index], stdscr)
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def startup_check_and_run():
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# Dependencies prüfen VOR curses, damit Frage klar sichtbar ist.
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missing = check_dependencies()
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if missing:
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print("Folgende benötigte Komponenten fehlen:")
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for m in missing:
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print(" -", m)
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ans = input("System vorbereiten und fehlende Komponenten installieren? [J/n]: ").strip().lower()
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if ans in ("", "j", "ja", "y", "yes"):
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install_dependencies(missing)
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else:
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print("Abhängigkeiten werden NICHT automatisch installiert. Die TUI kann eingeschränkt sein.")
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input("Weiter mit Enter...")
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curses.wrapper(main_tui)
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if __name__ == "__main__":
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startup_check_and_run()
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