feat(status): раздел «Статус» — контейнеры, карточка, проверки (#14)

- docker-socket-proxy в Compose (только GET /containers/*), сокет только у него
- app/runtime/docker.py: read-only клиент; видны только контейнеры с меткой
  tgit.managed=true, чужие id отклоняются до запроса
- app/runtime/checks.py: running, health, рестарты за окно, CPU/RAM, ошибки
  в логе, HTTP-проба; у каждой проверки свой таймаут, отчёт всегда полный
- app/runtime/snapshots.py: снапшоты раз в 15 с в container_snapshots
- бот: список с 🟢🟡🔴⚪, карточка, «🩺 Запустить проверки», «🔄 Обновить»
- деплой ставит метки tgit.sha / tgit.deployed_at на контейнер бота
- имя джоба CD без неотрисованного выражения

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/bot/routers/commit.py

@@ -99,8 +99,8 @@ class Row:
 
 def human_size(n: int) -> str:
     size = float(n)
-    for unit in ("Б", "КБ", "МБ"):
-        if size < 1024 or unit == "МБ":
+    for unit in ("Б", "КБ", "МБ", "ГБ"):
+        if size < 1024 or unit == "ГБ":
             return f"{size:.0f} {unit}" if unit == "Б" else f"{size:.1f} {unit}"
         size /= 1024
     raise AssertionError("unreachable")

app/bot/routers/common.py

@@ -16,7 +16,6 @@ def build_router(texts: Texts, access: AccessService) -> Router:
     router = Router(name="common")
     sections = section_by_button(texts)
     section_text = {
-        Section.STATUS: texts.section.status,
         Section.LOGS: texts.section.logs,
         Section.ALERTS: texts.section.alerts,
     }

app/bot/routers/status.py

@@ -0,0 +1,216 @@
+"""«🩺 Статус»: managed containers, a card per container, on-demand checks (SPEC S-1…S-4)."""
+
+import logging
+from datetime import datetime
+from enum import StrEnum
+
+from aiogram import F, Router
+from aiogram.exceptions import TelegramBadRequest
+from aiogram.filters.callback_data import CallbackData
+from aiogram.fsm.context import FSMContext
+from aiogram.types import CallbackQuery, InlineKeyboardMarkup, Message
+from aiogram.utils.keyboard import InlineKeyboardBuilder
+
+from app.bot.menu import Nav, NavAction
+from app.bot.routers.commit import human_size
+from app.db.models import utcnow
+from app.runtime.checks import Checker, CheckName, ContainerReport
+from app.runtime.docker import Container, Details, DockerClient, DockerError, Stats
+from app.texts import StatusTexts, Texts
+
+log = logging.getLogger(__name__)
+
+MAX_TEXT = 4000  # Telegram's limit is 4096
+
+
+class StatusAct(StrEnum):
+    LIST = "l"
+    CARD = "c"
+    CHECK = "k"
+
+
+class StatusCb(CallbackData, prefix="s"):
+    a: StatusAct
+    id: str = ""  # 12-char container id prefix: callback data is limited to 64 bytes
+
+
+def duration(t: StatusTexts, seconds: float) -> str:
+    s = int(max(seconds, 0))
+    d, s = divmod(s, 86400)
+    h, s = divmod(s, 3600)
+    m, s = divmod(s, 60)
+    if d:
+        return f"{d} {t.days} {h} {t.hours}"
+    if h:
+        return f"{h} {t.hours} {m} {t.minutes}"
+    if m:
+        return f"{m} {t.minutes}"
+    return f"{s} {t.seconds}"
+
+
+def _clip(text: str) -> str:
+    return text if len(text) <= MAX_TEXT else text[: MAX_TEXT - 1] + "…"
+
+
+def _fmt_time(dt: datetime | None, none: str) -> str:
+    return dt.strftime("%d.%m %H:%M") if dt else none
+
+
+def render_list(texts: Texts, containers: list[Container], now: datetime) -> tuple[str, InlineKeyboardMarkup]:
+    t = texts.status
+    lines = [t.title.format(count=len(containers), time=now.strftime("%H:%M:%S")), ""]
+    if not containers:
+        lines.append(t.empty)
+    for c in containers:
+        state = c.state if c.health is None else f"{c.state}, {c.health}"
+        lines.append(t.line.format(light=c.light.value, name=c.name, state=state))
+    kb = InlineKeyboardBuilder()
+    for c in containers:
+        kb.button(text=f"{c.light.value} {c.name}", callback_data=StatusCb(a=StatusAct.CARD, id=c.short_id))
+    if containers:
+        kb.button(text=t.check_button, callback_data=StatusCb(a=StatusAct.CHECK))
+    kb.button(text=t.refresh, callback_data=StatusCb(a=StatusAct.LIST))
+    kb.button(text=texts.menu.back, callback_data=Nav(action=NavAction.BACK))
+    kb.adjust(1)
+    return _clip("\n".join(lines)), kb.as_markup()
+
+
+def render_card(texts: Texts, d: Details, stats: Stats | None, now: datetime) -> tuple[str, InlineKeyboardMarkup]:
+    t = texts.status
+    running = d.state == "running"
+    uptime = duration(t, (now - d.started_at).total_seconds()) if running and d.started_at else t.none
+    if stats is None:
+        cpu = mem = limit = mem_pct = t.none
+    else:
+        cpu = f"{stats.cpu_pct:.1f}%"
+        mem = human_size(stats.mem_bytes)
+        limit = human_size(stats.mem_limit) if stats.mem_limit else t.no_limit
+        mem_pct = f"{stats.mem_pct:.0f}%"
+    text = t.card.format(
+        light=d.light.value,
+        name=d.name,
+        service=d.service or t.none,
+        image=d.image or t.none,
+        state=d.state if running else f"{d.state} (exit {d.exit_code}{', OOM' if d.oom_killed else ''})",
+        health=d.health or t.none,
+        uptime=uptime,
+        restarts=d.restart_count,
+        cpu=cpu,
+        mem=mem,
+        limit=limit,
+        mem_pct=mem_pct,
+        sha=(d.sha or t.none)[:12],
+        deployed=_fmt_time(d.deployed_at, t.none),
+    )
+    kb = InlineKeyboardBuilder()
+    kb.button(text=t.check_button, callback_data=StatusCb(a=StatusAct.CHECK, id=d.id[:12]))
+    kb.button(text=t.refresh, callback_data=StatusCb(a=StatusAct.CARD, id=d.id[:12]))
+    kb.button(text=t.to_list, callback_data=StatusCb(a=StatusAct.LIST))
+    kb.adjust(2, 1)
+    return text, kb.as_markup()
+
+
+def render_report(
+    texts: Texts, reports: list[ContainerReport], now: datetime, back_id: str = ""
+) -> tuple[str, InlineKeyboardMarkup]:
+    """back_id: the report was run from a card — offer the way back to it."""
+    t = texts.status
+    titles = {
+        CheckName.RUNNING: t.check_running,
+        CheckName.HEALTH: t.check_health,
+        CheckName.RESTARTS: t.check_restarts,
+        CheckName.CPU: t.check_cpu,
+        CheckName.MEM: t.check_mem,
+        CheckName.LOG_ERRORS: t.check_log_errors,
+        CheckName.HTTP: t.check_http,
+    }
+    ok = sum(r.ok for r in reports)
+    lines = [t.report_title.format(ok=ok, total=len(reports), time=now.strftime("%H:%M:%S"))]
+    for report in reports:
+        lines.append("")
+        lines.append(t.report_container.format(light="✅" if report.ok else "❌", name=report.details.name))
+        for r in report.results:
+            detail = f" · {r.detail}" if r.detail else ""
+            lines.append(t.report_line.format(verdict=r.verdict.value, title=titles[r.name], detail=detail))
+    kb = InlineKeyboardBuilder()
+    kb.button(text=t.refresh, callback_data=StatusCb(a=StatusAct.CHECK, id=back_id))
+    if back_id:
+        kb.button(text=t.to_card, callback_data=StatusCb(a=StatusAct.CARD, id=back_id))
+    kb.button(text=t.to_list, callback_data=StatusCb(a=StatusAct.LIST))
+    kb.adjust(1)
+    return _clip("\n".join(lines)), kb.as_markup()
+
+
+def build_router(texts: Texts, docker: DockerClient | None, checker: Checker | None) -> Router:
+    router = Router(name="status")
+    t = texts.status
+
+    async def list_screen() -> tuple[str, InlineKeyboardMarkup]:
+        if docker is None:
+            raise DockerError("docker is not configured (DOCKER_URL)")
+        return render_list(texts, await docker.containers(), utcnow())
+
+    async def card_screen(short_id: str) -> tuple[str, InlineKeyboardMarkup]:
+        if docker is None:
+            raise DockerError("docker is not configured (DOCKER_URL)")
+        cid = await docker.resolve(short_id)
+        details = await docker.inspect(cid)
+        stats = None
+        if details.state == "running":
+            try:
+                stats = await docker.stats(cid)
+            except DockerError:
+                log.warning("stats %s unavailable", short_id)
+        return render_card(texts, details, stats, utcnow())
+
+    @router.message(F.text == texts.menu.status)
+    async def open_status(message: Message, state: FSMContext) -> None:
+        await state.clear()
+        try:
+            text, kb = await list_screen()
+        except DockerError as e:
+            log.warning("status: %s", e)
+            await message.answer(t.unavailable)
+            return
+        await message.answer(text, reply_markup=kb)
+
+    @router.callback_query(StatusCb.filter())
+    async def on_action(query: CallbackQuery, callback_data: StatusCb) -> None:
+        if not isinstance(query.message, Message):
+            await query.answer()
+            return
+        msg = query.message
+        try:
+            match callback_data.a:
+                case StatusAct.LIST:
+                    text, kb = await list_screen()
+                case StatusAct.CARD:
+                    text, kb = await card_screen(callback_data.id)
+                case StatusAct.CHECK:
+                    if docker is None or checker is None:
+                        raise DockerError("docker is not configured (DOCKER_URL)")
+                    await query.answer(t.checking)
+                    if callback_data.id:
+                        reports = [await checker.check(await docker.resolve(callback_data.id))]
+                    else:
+                        reports = await checker.check_all()
+                    text, kb = render_report(texts, reports, utcnow(), callback_data.id)
+                    await _edit(msg, text, kb)
+                    return
+        except DockerError as e:
+            log.warning("status: %s", e)
+            await query.answer(t.unavailable, show_alert=True)
+            return
+        await _edit(msg, text, kb)
+        await query.answer()
+
+    return router
+
+
+async def _edit(msg: Message, text: str, kb: InlineKeyboardMarkup) -> None:
+    # «🔄 Обновить» with nothing changed: Telegram rejects an identical edit — not an error for the user
+    try:
+        await msg.edit_text(text, reply_markup=kb)
+    except TelegramBadRequest as e:
+        if "message is not modified" not in str(e):
+            raise

app/config.py

@@ -84,6 +84,18 @@ class GitSettings(BaseSettings):
     timeout: float = Field(default=60.0, gt=0)
 
 
+class DockerSettings(BaseSettings):
+    model_config = SettingsConfigDict(**_ENV, env_prefix="DOCKER_")
+
+    # docker-socket-proxy (GET only, ADR-006); empty — the «Статус» section reports Docker as unavailable
+    url: str = ""
+    # Only containers with this label are shown: the host runs other projects too
+    label: str = "tgit.managed=true"
+    timeout: float = Field(default=10.0, gt=0)
+    snapshot_interval: float = Field(default=15.0, gt=0)
+    max_log_bytes: int = Field(default=5 * 1024 * 1024, gt=0)
+
+
 class RuntimeSettings(BaseSettings):
     model_config = _ENV
 
@@ -105,4 +117,5 @@ class Settings(BaseSettings):
     llm: LLMSettings = Field(default_factory=LLMSettings)
     sourcecraft: SourceCraftSettings = Field(default_factory=SourceCraftSettings)
     git: GitSettings = Field(default_factory=GitSettings)
+    docker: DockerSettings = Field(default_factory=DockerSettings)
     runtime: RuntimeSettings = Field(default_factory=RuntimeSettings)

app/main.py

@@ -11,7 +11,7 @@ from app import __version__
 from app.access.service import AccessService
 from app.bot.fsm import make_storage
 from app.bot.middlewares.access import AccessMiddleware
-from app.bot.routers import commit, common, members
+from app.bot.routers import commit, common, members, status
 from app.config import Settings
 from app.db.maintenance import cleanup_loop
 from app.db.migrate import upgrade
@@ -21,13 +21,22 @@ from app.logs_setup import setup_logging
 from app.repo.drafts import DraftService
 from app.repo.git import UploadsRepo
 from app.repo.publisher import Publisher
+from app.runtime.checks import Checker, load_checks
+from app.runtime.docker import DockerClient
+from app.runtime.snapshots import SnapshotStore, snapshot_loop
 from app.texts import Texts, load_texts
 
 log = logging.getLogger("tgit")
 
 
 def build_dispatcher(
-    texts: Texts, sessions: SessionMaker, access: AccessService, repo: UploadsRepo, commit_url_template: str = ""
+    texts: Texts,
+    sessions: SessionMaker,
+    access: AccessService,
+    repo: UploadsRepo,
+    commit_url_template: str = "",
+    docker: DockerClient | None = None,
+    checker: Checker | None = None,
 ) -> Dispatcher:
     dp = Dispatcher(storage=make_storage(sessions))
     gate = AccessMiddleware(access, texts)
@@ -38,31 +47,42 @@ def build_dispatcher(
     dp.include_router(
         commit.build_router(texts, repo, DraftService(sessions), Publisher(repo, sessions), commit_url_template)
     )
+    dp.include_router(status.build_router(texts, docker, checker))
     dp.include_router(common.build_router(texts, access))
     return dp
 
 
 async def run(settings: Settings) -> None:
     texts = load_texts(settings.runtime.config_dir)
+    checks_cfg = load_checks(settings.runtime.config_dir)
     engine = make_engine(settings.database.url)
     await upgrade(engine)
     sessions = make_sessionmaker(engine)
     access = AccessService(sessions, settings.access)
     await access.bootstrap_admins()
-    dp = build_dispatcher(texts, sessions, access, UploadsRepo(settings.git), settings.git.commit_url_template)
+    # No DOCKER_URL (e.g. `make run` without Docker): «Статус» answers «Docker недоступен», the rest works
+    docker = DockerClient(settings.docker) if settings.docker.url else None
+    store = SnapshotStore(sessions)
+    checker = Checker(docker, store, checks_cfg) if docker else None
+    dp = build_dispatcher(
+        texts, sessions, access, UploadsRepo(settings.git), settings.git.commit_url_template, docker, checker
+    )
     rt = settings.runtime
     background = [
         asyncio.create_task(heartbeat(rt.heartbeat_file, rt.heartbeat_interval)),
         asyncio.create_task(cleanup_loop(sessions)),
     ]
+    if docker:
+        background.append(asyncio.create_task(snapshot_loop(docker, store, settings.docker.snapshot_interval)))
     proxy = settings.telegram.proxy_url
     session = AiohttpSession(proxy=proxy.get_secret_value()) if proxy else None
     bot = Bot(settings.telegram.bot_token.get_secret_value(), session=session)
     log.info(
-        "tgit %s starting, %d bootstrap admin(s), telegram %s",
+        "tgit %s starting, %d bootstrap admin(s), telegram %s, docker %s",
         __version__,
         len(settings.access.admin_ids),
         "via proxy" if proxy else "direct",
+        "on" if docker else "off",
     )
     try:
         await dp.start_polling(bot, handle_signals=True)
@@ -73,6 +93,10 @@ async def run(settings: Settings) -> None:
             with contextlib.suppress(asyncio.CancelledError):
                 await task
         await bot.session.close()
+        if docker:
+            await docker.aclose()
+        if checker:
+            await checker.aclose()
         await engine.dispose()
         log.info("tgit stopped")
 

app/runtime/__init__.py

@@ -0,0 +1 @@
+"""Containers: read-only Docker API via docker-socket-proxy, checks and snapshots (ARCHITECTURE §2.6)."""

app/runtime/checks.py

@@ -0,0 +1,223 @@
+"""«🩺 Запустить проверки» (SPEC S-3): independent checks per container, each with its own timeout.
+
+A check that raises or hangs becomes ❌ with the reason; the others still run and the report is always complete.
+Details are short and language-neutral (numbers, codes); the titles live in `config/texts.yaml`.
+"""
+
+import asyncio
+from collections.abc import Awaitable, Callable
+from dataclasses import dataclass
+from datetime import datetime, timedelta
+from enum import StrEnum
+from pathlib import Path
+
+import httpx
+import regex
+import yaml
+from pydantic import BaseModel, ConfigDict, Field, field_validator
+
+from app.db.models import utcnow
+from app.runtime.docker import Details, DockerClient, Stats
+from app.runtime.snapshots import SnapshotStore
+
+REGEX_TIMEOUT = 1.0  # seconds per log line: a pathological pattern can't stall the bot
+
+
+class ChecksConfig(BaseModel):
+    model_config = ConfigDict(extra="forbid", frozen=True)
+
+    window: int = Field(default=300, gt=0)
+    cpu_pct: float = Field(default=90, gt=0)
+    mem_pct: float = Field(default=90, gt=0, le=100)
+    error_pattern: str
+    http_timeout: float = Field(default=5, gt=0)
+    check_timeout: float = Field(default=15, gt=0)
+
+    @field_validator("error_pattern")
+    @classmethod
+    def _compiles(cls, value: str) -> str:
+        try:
+            regex.compile(value)
+        except regex.error as e:  # not a ValueError: pydantic wouldn't turn it into a validation error
+            raise ValueError(f"error_pattern: {e}") from e
+        return value
+
+
+def load_checks(config_dir: Path) -> ChecksConfig:
+    with (config_dir / "checks.yaml").open(encoding="utf-8") as f:
+        return ChecksConfig.model_validate(yaml.safe_load(f))
+
+
+class CheckName(StrEnum):
+    RUNNING = "running"
+    HEALTH = "health"
+    RESTARTS = "restarts"
+    CPU = "cpu"
+    MEM = "mem"
+    LOG_ERRORS = "log_errors"
+    HTTP = "http"
+
+
+class Verdict(StrEnum):
+    OK = "✅"
+    FAIL = "❌"
+    SKIP = "➖"  # not applicable: no healthcheck, not running, no health_url
+
+
+@dataclass(frozen=True)
+class CheckResult:
+    name: CheckName
+    verdict: Verdict
+    detail: str = ""
+
+
+@dataclass(frozen=True)
+class ContainerReport:
+    details: Details
+    results: list[CheckResult]
+
+    @property
+    def ok(self) -> bool:
+        return all(r.verdict is not Verdict.FAIL for r in self.results)
+
+
+@dataclass(frozen=True)
+class Context:
+    details: Details
+    docker: DockerClient
+    store: SnapshotStore
+    cfg: ChecksConfig
+    http: httpx.AsyncClient
+    now: datetime
+    stats: Stats | None  # None when not running
+
+    @property
+    def since(self) -> datetime:
+        return self.now - timedelta(seconds=self.cfg.window)
+
+
+async def check_running(ctx: Context) -> CheckResult:
+    d = ctx.details
+    if d.state == "running":
+        return CheckResult(CheckName.RUNNING, Verdict.OK, d.state)
+    detail = f"{d.state}, exit {d.exit_code}" + (", OOM" if d.oom_killed else "")
+    return CheckResult(CheckName.RUNNING, Verdict.FAIL, detail)
+
+
+async def check_health(ctx: Context) -> CheckResult:
+    health = ctx.details.health
+    if health is None:
+        return CheckResult(CheckName.HEALTH, Verdict.SKIP, "no healthcheck")
+    return CheckResult(CheckName.HEALTH, Verdict.OK if health == "healthy" else Verdict.FAIL, health)
+
+
+async def check_restarts(ctx: Context) -> CheckResult:
+    now_count = ctx.details.restart_count
+    before = await ctx.store.oldest_since(ctx.details.name, ctx.since)
+    if before is None:
+        return CheckResult(CheckName.RESTARTS, Verdict.SKIP, f"{now_count}, no history")
+    grown = now_count - before.restart_count
+    if grown > 0:
+        return CheckResult(CheckName.RESTARTS, Verdict.FAIL, f"{before.restart_count} → {now_count}")
+    return CheckResult(CheckName.RESTARTS, Verdict.OK, str(now_count))
+
+
+async def check_cpu(ctx: Context) -> CheckResult:
+    if ctx.stats is None:
+        return CheckResult(CheckName.CPU, Verdict.SKIP)
+    pct = ctx.stats.cpu_pct
+    verdict = Verdict.OK if pct < ctx.cfg.cpu_pct else Verdict.FAIL
+    return CheckResult(CheckName.CPU, verdict, f"{pct:.1f}% / {ctx.cfg.cpu_pct:g}%")
+
+
+async def check_mem(ctx: Context) -> CheckResult:
+    if ctx.stats is None:
+        return CheckResult(CheckName.MEM, Verdict.SKIP)
+    pct = ctx.stats.mem_pct
+    verdict = Verdict.OK if pct < ctx.cfg.mem_pct else Verdict.FAIL
+    return CheckResult(CheckName.MEM, verdict, f"{pct:.1f}% / {ctx.cfg.mem_pct:g}%")
+
+
+def count_errors(text: str, pattern: str) -> tuple[int, str]:
+    """Matching lines and the first of them (trimmed)."""
+    compiled = regex.compile(pattern)
+    hits, first = 0, ""
+    for line in text.splitlines():
+        try:
+            matched = compiled.search(line, timeout=REGEX_TIMEOUT) is not None
+        except TimeoutError:
+            matched = False
+        if matched:
+            hits += 1
+            first = first or line.strip()[:120]
+    return hits, first
+
+
+async def check_log_errors(ctx: Context) -> CheckResult:
+    text = await ctx.docker.logs(ctx.details.id, since=ctx.since)
+    hits, first = await asyncio.to_thread(count_errors, text, ctx.cfg.error_pattern)
+    if hits:
+        return CheckResult(CheckName.LOG_ERRORS, Verdict.FAIL, f"{hits}: {first}")
+    return CheckResult(CheckName.LOG_ERRORS, Verdict.OK, "0")
+
+
+async def check_http(ctx: Context) -> CheckResult:
+    url = ctx.details.health_url
+    if url is None:
+        return CheckResult(CheckName.HTTP, Verdict.SKIP, "no health_url")
+    try:
+        response = await ctx.http.get(url, timeout=ctx.cfg.http_timeout)
+    except httpx.HTTPError as e:
+        return CheckResult(CheckName.HTTP, Verdict.FAIL, type(e).__name__)
+    ok = response.status_code < 400
+    return CheckResult(CheckName.HTTP, Verdict.OK if ok else Verdict.FAIL, f"HTTP {response.status_code}")
+
+
+Check = Callable[[Context], Awaitable[CheckResult]]
+CHECKS: list[tuple[CheckName, Check]] = [
+    (CheckName.RUNNING, check_running),
+    (CheckName.HEALTH, check_health),
+    (CheckName.RESTARTS, check_restarts),
+    (CheckName.CPU, check_cpu),
+    (CheckName.MEM, check_mem),
+    (CheckName.LOG_ERRORS, check_log_errors),
+    (CheckName.HTTP, check_http),
+]
+
+
+async def _guarded(name: CheckName, check: Check, ctx: Context) -> CheckResult:
+    try:
+        return await asyncio.wait_for(check(ctx), timeout=ctx.cfg.check_timeout)
+    except TimeoutError:
+        return CheckResult(name, Verdict.FAIL, "timeout")
+    except Exception as e:  # one broken check must not spoil the report
+        return CheckResult(name, Verdict.FAIL, f"{type(e).__name__}: {str(e)[:80]}")
+
+
+class Checker:
+    def __init__(
+        self, docker: DockerClient, store: SnapshotStore, cfg: ChecksConfig, http: httpx.AsyncClient | None = None
+    ) -> None:
+        self._docker = docker
+        self._store = store
+        self._cfg = cfg
+        self._http = http or httpx.AsyncClient(follow_redirects=False)
+
+    async def check(self, container_id: str, now: datetime | None = None) -> ContainerReport:
+        details = await self._docker.inspect(container_id)
+        stats = None
+        if details.state == "running":
+            try:
+                stats = await asyncio.wait_for(self._docker.stats(container_id), timeout=self._cfg.check_timeout)
+            except Exception:  # cpu/mem become ➖, the rest still runs
+                stats = None
+        ctx = Context(details, self._docker, self._store, self._cfg, self._http, now or utcnow(), stats)
+        results = await asyncio.gather(*(_guarded(name, fn, ctx) for name, fn in CHECKS))
+        return ContainerReport(details, list(results))
+
+    async def check_all(self, now: datetime | None = None) -> list[ContainerReport]:
+        containers = await self._docker.containers()
+        return list(await asyncio.gather(*(self.check(c.id, now) for c in containers)))
+
+    async def aclose(self) -> None:
+        await self._http.aclose()

app/runtime/docker.py

@@ -0,0 +1,283 @@
+"""Read-only Docker Engine API client. The bot talks to docker-socket-proxy (GET only), never to the socket itself.
+
+Only containers carrying the managed label are visible: the host also runs other projects (Vobot, meditron),
+and an id outside the list is refused before any request goes out.
+"""
+
+import json
+import re
+import struct
+from dataclasses import dataclass
+from datetime import UTC, datetime
+from enum import StrEnum
+from types import TracebackType
+from typing import Any, Self
+
+import httpx
+
+from app.config import DockerSettings
+
+SHA_LABEL = "tgit.sha"
+DEPLOYED_LABEL = "tgit.deployed_at"
+HEALTH_URL_LABEL = "tgit.health_url"
+SERVICE_LABEL = "com.docker.compose.service"
+
+_FRACTION = re.compile(r"(\.\d{6})\d+")  # Docker gives nanoseconds, datetime takes microseconds
+
+
+class DockerError(Exception):
+    pass
+
+
+class Light(StrEnum):
+    """S-1: 🟢 healthy / 🟡 starting / 🔴 unhealthy or crashed / ⚪ stopped."""
+
+    GREEN = "🟢"
+    YELLOW = "🟡"
+    RED = "🔴"
+    WHITE = "⚪"
+
+
+def parse_time(value: str | None) -> datetime | None:
+    if not value or value.startswith("0001-"):  # Docker's zero time: never started / no deploy label
+        return None
+    try:
+        return datetime.fromisoformat(_FRACTION.sub(r"\1", value).replace("Z", "+00:00")).astimezone(UTC)
+    except ValueError:
+        return None
+
+
+def light(state: str, health: str | None, exit_code: int = 0) -> Light:
+    if state == "running":
+        if health == "unhealthy":
+            return Light.RED
+        if health == "starting":
+            return Light.YELLOW
+        return Light.GREEN
+    if state in ("restarting", "dead") or (state == "exited" and exit_code != 0):
+        return Light.RED
+    if state == "created":
+        return Light.YELLOW
+    return Light.WHITE
+
+
+@dataclass(frozen=True)
+class Container:
+    """A list entry (GET /containers/json): enough for the overview, no extra request per container."""
+
+    id: str
+    name: str
+    service: str
+    image: str
+    state: str  # created | running | paused | restarting | removing | exited | dead
+    health: str | None  # starting | healthy | unhealthy | None — no healthcheck
+    exit_code: int
+    labels: dict[str, str]
+
+    @property
+    def short_id(self) -> str:
+        return self.id[:12]
+
+    @property
+    def light(self) -> Light:
+        return light(self.state, self.health, self.exit_code)
+
+
+_HEALTH_IN_STATUS = re.compile(r"\((healthy|unhealthy|health: starting)\)")
+_EXIT_IN_STATUS = re.compile(r"^Exited \((-?\d+)\)")
+
+
+def _health_from_status(status: str) -> str | None:
+    """`Up 2 hours (healthy)` → healthy. The list endpoint has no structured health field."""
+    m = _HEALTH_IN_STATUS.search(status)
+    if m is None:
+        return None
+    return "starting" if m.group(1) == "health: starting" else m.group(1)
+
+
+@dataclass(frozen=True)
+class Details:
+    """GET /containers/{id}/json — the card (S-2) and most checks."""
+
+    id: str
+    name: str
+    service: str
+    image: str
+    state: str
+    health: str | None
+    exit_code: int
+    restart_count: int
+    started_at: datetime | None
+    finished_at: datetime | None
+    oom_killed: bool
+    labels: dict[str, str]
+
+    @property
+    def light(self) -> Light:
+        return light(self.state, self.health, self.exit_code)
+
+    @property
+    def sha(self) -> str | None:
+        return self.labels.get(SHA_LABEL) or None
+
+    @property
+    def deployed_at(self) -> datetime | None:
+        return parse_time(self.labels.get(DEPLOYED_LABEL))
+
+    @property
+    def health_url(self) -> str | None:
+        return self.labels.get(HEALTH_URL_LABEL) or None
+
+
+@dataclass(frozen=True)
+class Stats:
+    cpu_pct: float  # of one CPU × online CPUs, as `docker stats` shows it
+    mem_bytes: int
+    mem_limit: int  # the cgroup limit; the host's RAM when the container has none
+
+    @property
+    def mem_pct(self) -> float:
+        return 100.0 * self.mem_bytes / self.mem_limit if self.mem_limit else 0.0
+
+
+def parse_stats(data: dict[str, Any]) -> Stats:
+    cpu, pre = data.get("cpu_stats") or {}, data.get("precpu_stats") or {}
+    cpu_delta = (cpu.get("cpu_usage") or {}).get("total_usage", 0) - (pre.get("cpu_usage") or {}).get("total_usage", 0)
+    sys_delta = cpu.get("system_cpu_usage", 0) - pre.get("system_cpu_usage", 0)
+    cpus = cpu.get("online_cpus") or len((cpu.get("cpu_usage") or {}).get("percpu_usage") or []) or 1
+    cpu_pct = 100.0 * cpu_delta / sys_delta * cpus if cpu_delta > 0 and sys_delta > 0 else 0.0
+    mem = data.get("memory_stats") or {}
+    extra = mem.get("stats") or {}
+    # Page cache isn't pressure: cgroup v2 reports inactive_file, v1 total_inactive_file (docker CLI does the same)
+    cache = extra.get("inactive_file", extra.get("total_inactive_file", 0))
+    usage = max(int(mem.get("usage", 0)) - int(cache), 0)
+    return Stats(cpu_pct=round(cpu_pct, 1), mem_bytes=usage, mem_limit=int(mem.get("limit", 0)))
+
+
+def demux_logs(raw: bytes) -> str:
+    """Split Docker's multiplexed stream (8-byte header per frame) — containers without a TTY send it this way."""
+    if raw[:1] not in (b"\x00", b"\x01", b"\x02") or len(raw) < 8 or raw[1:4] != b"\x00\x00\x00":
+        return raw.decode(errors="replace")  # TTY container: plain bytes
+    out: list[bytes] = []
+    pos = 0
+    while pos + 8 <= len(raw):
+        (size,) = struct.unpack(">I", raw[pos + 4 : pos + 8])
+        out.append(raw[pos + 8 : pos + 8 + size])
+        pos += 8 + size
+    return b"".join(out).decode(errors="replace")
+
+
+class DockerClient:
+    def __init__(self, settings: DockerSettings, transport: httpx.AsyncBaseTransport | None = None) -> None:
+        self._s = settings
+        self._http = httpx.AsyncClient(base_url=settings.url, timeout=settings.timeout, transport=transport)
+        self._known: set[str] = set()  # ids from the last listing: the only ones card/logs/stats may touch
+
+    async def __aenter__(self) -> Self:
+        return self
+
+    async def __aexit__(
+        self, exc_type: type[BaseException] | None, exc: BaseException | None, tb: TracebackType | None
+    ) -> None:
+        await self.aclose()
+
+    async def aclose(self) -> None:
+        await self._http.aclose()
+
+    async def containers(self) -> list[Container]:
+        """All managed containers, stopped ones too, sorted by name."""
+        filters = json.dumps({"label": [self._s.label]})
+        data = await self._get_json("/containers/json", params={"all": "1", "filters": filters})
+        result = []
+        for c in data:
+            labels = c.get("Labels") or {}
+            names = c.get("Names") or [c["Id"][:12]]
+            result.append(
+                Container(
+                    id=c["Id"],
+                    name=names[0].lstrip("/"),
+                    service=labels.get(SERVICE_LABEL, ""),
+                    image=c.get("Image", ""),
+                    state=c.get("State", ""),
+                    health=_health_from_status(c.get("Status", "")),
+                    exit_code=int(m.group(1)) if (m := _EXIT_IN_STATUS.match(c.get("Status", ""))) else 0,
+                    labels=labels,
+                )
+            )
+        self._known = {c.id for c in result}
+        return sorted(result, key=lambda c: c.name)
+
+    async def resolve(self, short_id: str) -> str:
+        """Full id of a managed container by its 12-char prefix (callback data carries only that)."""
+        if not self._known:
+            await self.containers()
+        for full in self._known:
+            if full.startswith(short_id):
+                return full
+        await self.containers()  # maybe recreated since the last listing
+        for full in self._known:
+            if full.startswith(short_id):
+                return full
+        raise DockerError(f"container {short_id} is not managed by tgit")
+
+    async def inspect(self, container_id: str) -> Details:
+        self._guard(container_id)
+        d = await self._get_json(f"/containers/{container_id}/json")
+        state = d.get("State") or {}
+        labels = (d.get("Config") or {}).get("Labels") or {}
+        return Details(
+            id=d["Id"],
+            name=d.get("Name", "").lstrip("/"),
+            service=labels.get(SERVICE_LABEL, ""),
+            image=(d.get("Config") or {}).get("Image", ""),
+            state=state.get("Status", ""),
+            health=(state.get("Health") or {}).get("Status"),
+            exit_code=int(state.get("ExitCode", 0)),
+            restart_count=int(d.get("RestartCount", 0)),
+            started_at=parse_time(state.get("StartedAt")),
+            finished_at=parse_time(state.get("FinishedAt")),
+            oom_killed=bool(state.get("OOMKilled", False)),
+            labels=labels,
+        )
+
+    async def stats(self, container_id: str) -> Stats:
+        """One sample with a previous one to diff against (stream=false waits ~1 s for it)."""
+        self._guard(container_id)
+        return parse_stats(await self._get_json(f"/containers/{container_id}/stats", params={"stream": "false"}))
+
+    async def logs(self, container_id: str, since: datetime | None = None, tail: int | None = None) -> str:
+        self._guard(container_id)
+        params = {"stdout": "1", "stderr": "1"}
+        if since is not None:
+            params["since"] = str(int(since.timestamp()))
+        if tail is not None:
+            params["tail"] = str(tail)
+        response = await self._request(f"/containers/{container_id}/logs", params)
+        raw = response.content[: self._s.max_log_bytes]
+        return demux_logs(raw)
+
+    async def ping(self) -> bool:
+        try:
+            return (await self._request("/_ping", {})).text == "OK"
+        except DockerError:
+            return False
+
+    def _guard(self, container_id: str) -> None:
+        if container_id not in self._known:
+            raise DockerError(f"container {container_id[:12]} is not managed by tgit")
+
+    async def _get_json(self, path: str, params: dict[str, str] | None = None) -> Any:
+        response = await self._request(path, params or {})
+        try:
+            return response.json()
+        except ValueError as e:
+            raise DockerError(f"{path}: not JSON") from e
+
+    async def _request(self, path: str, params: dict[str, str]) -> httpx.Response:
+        try:
+            response = await self._http.get(path, params=params)
+        except httpx.TransportError as e:  # timeouts included
+            raise DockerError(f"docker unreachable: {type(e).__name__}") from e
+        if response.status_code >= 400:
+            raise DockerError(f"{path}: HTTP {response.status_code} {response.text[:200]}")
+        return response

app/runtime/snapshots.py

@@ -0,0 +1,87 @@
+"""Every 15 s: restart count, CPU and RAM of each running managed container → `container_snapshots`.
+
+The history answers «are restarts growing over the last 5 minutes» (S-3) and feeds alerts (#15).
+Old rows are removed by `app.db.maintenance`.
+"""
+
+import asyncio
+import logging
+from datetime import datetime
+
+from sqlalchemy import select
+
+from app.db.models import ContainerSnapshot, utcnow
+from app.db.session import SessionMaker
+from app.runtime.docker import DockerClient, DockerError
+
+log = logging.getLogger(__name__)
+
+
+class SnapshotStore:
+    def __init__(self, sessions: SessionMaker) -> None:
+        self._sessions = sessions
+
+    async def add(self, rows: list[ContainerSnapshot]) -> None:
+        if rows:
+            async with self._sessions.begin() as session:
+                session.add_all(rows)
+
+    async def oldest_since(self, container: str, since: datetime) -> ContainerSnapshot | None:
+        async with self._sessions() as session:
+            return await session.scalar(
+                select(ContainerSnapshot)
+                .where(ContainerSnapshot.container == container, ContainerSnapshot.at >= since)
+                .order_by(ContainerSnapshot.at)
+                .limit(1)
+            )
+
+    async def latest(self, container: str) -> ContainerSnapshot | None:
+        async with self._sessions() as session:
+            return await session.scalar(
+                select(ContainerSnapshot)
+                .where(ContainerSnapshot.container == container)
+                .order_by(ContainerSnapshot.at.desc())
+                .limit(1)
+            )
+
+
+async def _snapshot(docker: DockerClient, container_id: str, at: datetime) -> ContainerSnapshot | None:
+    try:
+        details, stats = await asyncio.gather(docker.inspect(container_id), docker.stats(container_id))
+    except DockerError as e:
+        log.warning("snapshot %s: %s", container_id[:12], e)
+        return None
+    return ContainerSnapshot(
+        container=details.name,
+        at=at,
+        restart_count=details.restart_count,
+        cpu_pct=stats.cpu_pct,
+        mem_pct=round(stats.mem_pct, 1),
+        health=details.health,
+    )
+
+
+async def collect_once(docker: DockerClient, store: SnapshotStore, now: datetime | None = None) -> int:
+    at = now or utcnow()
+    running = [c for c in await docker.containers() if c.state == "running"]
+    rows = await asyncio.gather(*(_snapshot(docker, c.id, at) for c in running))
+    snapshots = [r for r in rows if r is not None]
+    await store.add(snapshots)
+    return len(snapshots)
+
+
+async def snapshot_loop(docker: DockerClient, store: SnapshotStore, interval: float) -> None:
+    failing = False
+    while True:
+        try:
+            await collect_once(docker, store)
+            if failing:
+                log.info("snapshots: docker reachable again")
+            failing = False
+        except DockerError as e:
+            if not failing:  # one line per outage, not one every 15 s
+                log.warning("snapshots: %s", e)
+            failing = True
+        except Exception:  # a broken round must not kill the bot
+            log.exception("snapshots failed")
+        await asyncio.sleep(interval)

app/texts.py

@@ -33,7 +33,6 @@ class HelpTexts(_Strict):
 
 class SectionTexts(_Strict):
     commit: str
-    status: str
     logs: str
     alerts: str
     members: str
@@ -124,6 +123,35 @@ class CommitTexts(_Strict):
     push_failed: str
 
 
+class StatusTexts(_Strict):
+    title: str
+    line: str
+    empty: str
+    unavailable: str
+    card: str
+    none: str
+    no_limit: str
+    check_button: str
+    refresh: str
+    to_list: str
+    to_card: str
+    checking: str
+    report_title: str
+    report_container: str
+    report_line: str
+    check_running: str
+    check_health: str
+    check_restarts: str
+    check_cpu: str
+    check_mem: str
+    check_log_errors: str
+    check_http: str
+    days: str
+    hours: str
+    minutes: str
+    seconds: str
+
+
 class Texts(_Strict):
     menu: MenuTexts
     start: StartTexts
@@ -131,6 +159,7 @@ class Texts(_Strict):
     section: SectionTexts
     members: MembersTexts
     commit: CommitTexts
+    status: StatusTexts
 
 
 def load_texts(config_dir: Path) -> Texts: