Mathieu Benoit
939e26ba83
Le log d'installation commence désormais par un en-tête identifiant l'installation : date, VM, distribution + version, architecture, branche, IP. Écrit dès la création du log (plus jamais vide au démarrage). _qemu_install_erplibre_monitored déduit distro/version/arch de chaque VM (nom via _qemu_infra_name + arch via virsh dumpxml) et les passe à launch_installs, qui écrit l'en-tête et les stocke dans le manifeste. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
315 lines
12 KiB
Python
315 lines
12 KiB
Python
#!/usr/bin/env python3
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# © 2021-2026 TechnoLibre (http://www.technolibre.ca)
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# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl)
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"""Dashboard Textual : suivi des installations ERPLibre parallèles sur VM.
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Principe « détachable » : chaque installation tourne dans un processus
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DÉTACHÉ (setsid) qui écrit un fichier log et, à la fin, un marqueur
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« __ERPLIBRE_EXIT__ <code> ». Ce module ne fait que VISUALISER ces fichiers :
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quitter le dashboard n'arrête rien, on peut le rouvrir pour ré-attacher.
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- launch_installs(...) : lance les process détachés + écrit un manifeste JSON.
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- run_monitor(manifest_path) : ouvre le dashboard Textual sur un manifeste.
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"""
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from __future__ import annotations
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import json
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import os
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import shlex
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import subprocess
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import time
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from pathlib import Path
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try:
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from script.todo.todo_i18n import t
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except Exception: # pragma: no cover - repli si i18n indisponible
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def t(key: str) -> str:
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return key
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EXIT_MARKER = "__ERPLIBRE_EXIT__"
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SSH_OPTS = (
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"-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "
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"-o ConnectTimeout=8"
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)
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def session_dir() -> Path:
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"""Répertoire des logs/manifestes d'installation (créé au besoin)."""
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base = Path(os.path.expanduser("~/.erplibre/qemu-install"))
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base.mkdir(parents=True, exist_ok=True)
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return base
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def _launch_one(ip: str, remote_cmd: str, log_path: str) -> None:
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"""Lance une install SSH DÉTACHÉE : attend le sshd, exécute, journalise
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la sortie puis écrit le marqueur de fin avec le code de sortie."""
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# Sonde de disponibilité : on attend que sshd réponde ET que cloud-init
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# soit TERMINÉ, via des connexions COURTES successives (jusqu'à ~20 min :
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# une architecture ÉMULÉE, s390x/arm64 sur hôte x86, boote lentement).
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# Au 1er boot, cloud-init régénère les clés d'hôte et REDÉMARRE sshd : une
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# session SSH longue (ex. « cloud-init status --wait ») serait alors tuée
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# (« Connection closed by remote host », exit 255 — cas Fedora). Chaque
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# itération étant une connexion neuve, un redémarrage de sshd ne casse que
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# la tentative en cours. On imprime toujours l'état (|| true) pour matcher
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# sur le TEXTE, « status: running » n'ayant pas de code de sortie fiable.
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ci_probe = (
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"if command -v cloud-init >/dev/null 2>&1; then "
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"cloud-init status 2>/dev/null || true; else echo nocloudinit; fi"
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)
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log_q = shlex.quote(log_path)
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# On écrit un message d'attente + un battement toutes les ~30 s : sinon le
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# log reste VIDE pendant tout le boot émulé et paraît « bloqué ».
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msg_wait = t("Waiting for the VM to start (boot + cloud-init)")
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msg_slow = t("(an emulated architecture can be slow; this is normal)")
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msg_ready = t("VM ready - starting the ERPLibre install")
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wrapper = (
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f"echo {shlex.quote('== ' + msg_wait + ' ==')} >> {log_q}; "
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f"echo {shlex.quote(' ' + msg_slow)} >> {log_q}; "
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f"for i in $(seq 1 240); do "
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f"st=$(ssh {SSH_OPTS} -o BatchMode=yes erplibre@{ip} "
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f"{shlex.quote(ci_probe)} 2>/dev/null); "
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f'case "$st" in '
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f"*done*|*disabled*|*error*|*degraded*|*nocloudinit*) break;; "
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f"esac; "
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f'if [ $((i % 6)) -eq 0 ]; then echo " ... $((i*5))s" >> {log_q}; fi; '
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f"sleep 5; done; "
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f"echo {shlex.quote('== ' + msg_ready + ' ==')} >> {log_q}; "
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f"ssh {SSH_OPTS} erplibre@{ip} {shlex.quote(remote_cmd)} "
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f">> {log_q} 2>&1; "
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f'echo "{EXIT_MARKER} $?" >> {log_q}'
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)
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# setsid -f : le process survit à la fermeture du menu / du dashboard.
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subprocess.Popen(
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["setsid", "-f", "bash", "-c", wrapper],
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL,
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start_new_session=True,
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)
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def _log_header(vm: dict, branch: str, when: str) -> str:
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"""En-tête du log : date, VM, distribution, version, architecture, branche.
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Permet d'identifier l'installation d'un coup d'œil (et de ne jamais laisser
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le log vide pendant l'attente du boot)."""
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distro = vm.get("distro") or "?"
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version = vm.get("version") or ""
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arch = vm.get("arch") or "?"
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bar = "=" * 64
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return (
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f"{bar}\n"
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f" ERPLibre — {t('installation')}\n"
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f" Date : {when}\n"
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f" VM : {vm['name']}\n"
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f" Distribution : {distro} {version}\n"
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f" Architecture : {arch}\n"
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f" Branche : {branch}\n"
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f" IP : {vm['ip']}\n"
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f"{bar}\n\n"
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)
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def launch_installs(vms: list[dict], branch: str, remote_cmd: str) -> str:
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"""vms : [{name, ip, distro?, version?, arch?}]. Lance chaque install
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détachée, écrit un manifeste et retourne son chemin. remote_cmd : script
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exécuté dans chaque VM."""
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sdir = session_dir()
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stamp = time.strftime("%Y%m%d-%H%M%S")
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when = time.strftime("%Y-%m-%d %H:%M:%S")
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logdir = sdir / stamp
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logdir.mkdir(parents=True, exist_ok=True)
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entries = []
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for vm in vms:
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log_path = str(logdir / f"{vm['name']}.log")
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# En-tête d'emblée (date/distro/version/arch) : le log n'est jamais
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# vide, l'utilisateur voit tout de suite QUOI s'installe.
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Path(log_path).write_text(_log_header(vm, branch, when))
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_launch_one(vm["ip"], remote_cmd, log_path)
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entries.append(
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{
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"name": vm["name"],
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"ip": vm["ip"],
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"distro": vm.get("distro"),
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"version": vm.get("version"),
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"arch": vm.get("arch"),
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"log": log_path,
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"ssh": f"ssh erplibre@{vm['ip']}",
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}
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)
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manifest = {
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"branch": branch,
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"started": time.time(),
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"vms": entries,
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}
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manifest_path = str(logdir / "session.json")
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Path(manifest_path).write_text(json.dumps(manifest, indent=2))
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return manifest_path
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def read_status(log_path: str) -> tuple[str, int | None]:
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"""(état, code) d'un log : pending / running / done / failed."""
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try:
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data = Path(log_path).read_text(errors="replace")
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except OSError:
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return "pending", None
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if not data.strip():
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return "pending", None
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for line in reversed(data.splitlines()):
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if EXIT_MARKER in line:
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try:
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code = int(line.split()[-1])
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except ValueError:
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code = 1
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return ("done" if code == 0 else "failed"), code
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return "running", None
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# --------------------------------------------------------------------------- #
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# Dashboard Textual
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# --------------------------------------------------------------------------- #
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def run_monitor(manifest_path: str) -> None:
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"""Ouvre le dashboard Textual sur un manifeste d'installation."""
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from textual.app import App, ComposeResult
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from textual.containers import Horizontal
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from textual.widgets import DataTable, Footer, Header, RichLog, Static
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manifest = json.loads(Path(manifest_path).read_text())
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started = manifest.get("started", time.time())
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vms = manifest["vms"]
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ICON = {
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"pending": "⏳",
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"running": "⏳",
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"done": "✅",
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"failed": "❌",
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}
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class Monitor(App):
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CSS = """
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DataTable { width: 40; border: solid $accent; }
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RichLog { border: solid $accent; }
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#sshbar { height: 2; color: $text-muted; }
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"""
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BINDINGS = [
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("q", "quit", "Quitter (détaché)"),
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("s", "ssh", "SSH"),
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("f", "follow", "Suivre"),
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("c", "copy_log", "Copier log"),
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]
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def __init__(self):
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super().__init__()
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self._offsets = {vm["name"]: 0 for vm in vms}
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self._selected = vms[0]["name"] if vms else None
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self._follow = True
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def compose(self) -> ComposeResult:
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yield Header(show_clock=True)
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table = DataTable(id="vms", cursor_type="row")
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# Clés de colonnes explicites : update_cell() les référence.
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table.add_column("VM", key="vm")
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table.add_column("État", key="state")
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table.add_column("Durée", key="elapsed")
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for vm in vms:
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table.add_row(vm["name"], "⏳", "00:00", key=vm["name"])
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self._log = RichLog(id="log", highlight=False, markup=False)
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with Horizontal():
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yield table
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yield self._log
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yield Static("", id="sshbar")
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yield Footer()
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def on_mount(self) -> None:
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self.title = "ERPLibre — suivi d'installation"
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self._refresh_ssh()
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self._load_selected_log(reset=True)
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self.set_interval(1.0, self._tick)
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# -- helpers -------------------------------------------------------- #
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def _vm_by_name(self, name):
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return next((v for v in vms if v["name"] == name), None)
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def _refresh_ssh(self):
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vm = self._vm_by_name(self._selected)
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bar = self.query_one("#sshbar", Static)
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if vm:
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bar.update(
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f" {vm['ssh']} (s = SSH · c = copier le log · "
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"Maj+glisser = sélectionner)\n"
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f" Log : {vm['log']}"
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)
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def _load_selected_log(self, reset=False):
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vm = self._vm_by_name(self._selected)
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if not vm:
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return
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if reset:
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self._log.clear()
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self._offsets[vm["name"]] = 0
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try:
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data = Path(vm["log"]).read_text(errors="replace")
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except OSError:
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return
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off = self._offsets[vm["name"]]
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new = data[off:]
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if new:
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for line in new.splitlines():
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if EXIT_MARKER not in line:
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self._log.write(line)
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self._offsets[vm["name"]] = len(data)
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def _tick(self):
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table = self.query_one("#vms", DataTable)
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for vm in vms:
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state, code = read_status(vm["log"])
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elapsed = time.time() - started
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mm, ss = divmod(int(elapsed), 60)
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label = ICON[state]
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if state == "failed":
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label = f"❌ ({code})"
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elif state == "done":
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label = "✅"
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table.update_cell(vm["name"], "state", label)
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if state in ("running", "pending"):
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table.update_cell(
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vm["name"], "elapsed", f"{mm:02d}:{ss:02d}"
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)
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if self._follow:
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self._load_selected_log()
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# -- events --------------------------------------------------------- #
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def on_data_table_row_highlighted(self, event) -> None:
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name = event.row_key.value
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if name and name != self._selected:
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self._selected = name
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self._refresh_ssh()
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self._load_selected_log(reset=True)
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def action_follow(self) -> None:
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self._follow = not self._follow
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def action_ssh(self) -> None:
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vm = self._vm_by_name(self._selected)
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if not vm:
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return
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with self.suspend():
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os.system(f"ssh {SSH_OPTS} erplibre@{vm['ip']} || true")
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def action_copy_log(self) -> None:
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"""Copie le log complet de la VM sélectionnée dans le
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presse-papiers (OSC 52 ; marche aussi à travers SSH)."""
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vm = self._vm_by_name(self._selected)
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if not vm:
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return
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try:
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text = Path(vm["log"]).read_text(errors="replace")
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except OSError:
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return
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self.copy_to_clipboard(text)
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self.notify(
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f"Log de {vm['name']} copié ({len(text)} car.)",
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title="Presse-papiers",
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)
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Monitor().run()
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