259 lines
9.1 KiB
Python
259 lines
9.1 KiB
Python
"""Update management — version check and in-place update via git + docker compose."""
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import json
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import logging
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import os
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import shutil
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import subprocess
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from datetime import datetime
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from pathlib import Path
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from typing import Any
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import httpx
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SOURCE_DIR = "/app-source"
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VERSION_FILE = "/app/version.json"
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BACKUP_DIR = "/app/backups"
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logger = logging.getLogger(__name__)
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def get_current_version() -> dict:
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"""Read the version baked at build time from /app/version.json."""
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try:
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data = json.loads(Path(VERSION_FILE).read_text())
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return {
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"tag": data.get("tag", "unknown"),
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"commit": data.get("commit", "unknown"),
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"branch": data.get("branch", "unknown"),
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"date": data.get("date", "unknown"),
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}
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except Exception:
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return {"tag": "unknown", "commit": "unknown", "branch": "unknown", "date": "unknown"}
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async def check_for_updates(config: Any) -> dict:
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"""Query the Gitea API for the latest tag and commit on the configured branch.
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Parses the repo URL to build the Gitea API endpoint:
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https://git.example.com/owner/repo
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→ https://git.example.com/api/v1/repos/owner/repo/...
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Uses tags for version comparison when available, falls back to commit SHAs.
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Returns dict with current, latest, needs_update, and optional error.
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"""
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current = get_current_version()
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if not config.git_repo_url:
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return {
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"current": current,
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"latest": None,
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"needs_update": False,
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"error": "git_repo_url not configured",
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}
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repo_url = config.git_repo_url.rstrip("/")
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parts = repo_url.split("/")
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if len(parts) < 5:
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return {
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"current": current,
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"latest": None,
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"needs_update": False,
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"error": f"Cannot parse repo URL: {repo_url}",
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}
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base_url = "/".join(parts[:-2])
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owner = parts[-2]
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repo = parts[-1]
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branch = config.git_branch or "main"
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branch_api = f"{base_url}/api/v1/repos/{owner}/{repo}/branches/{branch}"
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tags_api = f"{base_url}/api/v1/repos/{owner}/{repo}/tags?limit=1"
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headers = {}
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if config.git_token:
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headers["Authorization"] = f"token {config.git_token}"
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try:
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async with httpx.AsyncClient(timeout=10) as client:
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# Fetch branch info (latest commit)
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resp = await client.get(branch_api, headers=headers)
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if resp.status_code != 200:
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return {
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"current": current,
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"latest": None,
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"needs_update": False,
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"error": f"Gitea API returned HTTP {resp.status_code}",
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}
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data = resp.json()
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latest_commit = data.get("commit", {})
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full_sha = latest_commit.get("id", "unknown")
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short_sha = full_sha[:8] if full_sha != "unknown" else "unknown"
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# Fetch latest tag
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latest_tag = "unknown"
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try:
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tag_resp = await client.get(tags_api, headers=headers)
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if tag_resp.status_code == 200:
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tags = tag_resp.json()
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if tags and len(tags) > 0:
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latest_tag = tags[0].get("name", "unknown")
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except Exception:
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pass # Tag fetch is best-effort
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latest = {
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"tag": latest_tag,
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"commit": short_sha,
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"commit_full": full_sha,
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"message": latest_commit.get("commit", {}).get("message", "").split("\n")[0],
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"date": latest_commit.get("commit", {}).get("committer", {}).get("date", ""),
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"branch": branch,
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}
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# Determine if update is needed: prefer tag comparison, fallback to commit
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current_tag = current.get("tag", "unknown")
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current_sha = current.get("commit", "unknown")
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if current_tag != "unknown" and latest_tag != "unknown":
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needs_update = current_tag != latest_tag
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else:
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needs_update = (
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current_sha != "unknown"
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and short_sha != "unknown"
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and current_sha != short_sha
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and not full_sha.startswith(current_sha)
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)
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return {"current": current, "latest": latest, "needs_update": needs_update}
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except Exception as exc:
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return {
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"current": current,
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"latest": None,
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"needs_update": False,
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"error": str(exc),
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}
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def backup_database(db_path: str) -> str:
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"""Create a timestamped backup of the SQLite database.
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Returns the backup file path.
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"""
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Path(BACKUP_DIR).mkdir(parents=True, exist_ok=True)
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timestamp = datetime.utcnow().strftime("%Y%m%d_%H%M%S")
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backup_path = f"{BACKUP_DIR}/netbird_msp_{timestamp}.db"
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shutil.copy2(db_path, backup_path)
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logger.info("Database backed up to %s", backup_path)
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return backup_path
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def trigger_update(config: Any, db_path: str) -> dict:
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"""Backup DB, git pull latest code, then fire-and-forget docker compose rebuild.
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Returns immediately after launching the rebuild. The container will restart
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in ~30-60 seconds causing a brief HTTP connection drop.
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Args:
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config: AppConfig with git_repo_url, git_branch, git_token.
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db_path: Absolute path to the SQLite database file.
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Returns:
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Dict with ok (bool), message, backup path, and pulled_branch.
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"""
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# 1. Backup database before any changes
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try:
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backup_path = backup_database(db_path)
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except Exception as exc:
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logger.error("Database backup failed: %s", exc)
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return {"ok": False, "message": f"Database backup failed: {exc}", "backup": None}
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# 2. Build git pull command (embed token in URL if provided)
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branch = config.git_branch or "main"
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if config.git_token and config.git_repo_url:
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scheme_sep = config.git_repo_url.split("://", 1)
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if len(scheme_sep) == 2:
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auth_url = f"{scheme_sep[0]}://token:{config.git_token}@{scheme_sep[1]}"
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else:
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auth_url = config.git_repo_url
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pull_cmd = ["git", "-C", SOURCE_DIR, "pull", auth_url, branch]
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else:
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pull_cmd = ["git", "-C", SOURCE_DIR, "pull", "origin", branch]
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# 3. Git pull (synchronous — must complete before rebuild)
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try:
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result = subprocess.run(
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pull_cmd,
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capture_output=True,
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text=True,
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timeout=120,
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)
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except subprocess.TimeoutExpired:
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return {"ok": False, "message": "git pull timed out after 120s.", "backup": backup_path}
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except Exception as exc:
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return {"ok": False, "message": f"git pull error: {exc}", "backup": backup_path}
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if result.returncode != 0:
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stderr = result.stderr.strip()[:500]
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logger.error("git pull failed (exit %d): %s", result.returncode, stderr)
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return {
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"ok": False,
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"message": f"git pull failed: {stderr}",
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"backup": backup_path,
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}
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logger.info("git pull succeeded: %s", result.stdout.strip()[:200])
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# 4. Read version info from the freshly-pulled source
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build_env = os.environ.copy()
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try:
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build_env["GIT_COMMIT"] = subprocess.run(
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["git", "-C", SOURCE_DIR, "rev-parse", "--short", "HEAD"],
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capture_output=True, text=True, timeout=10,
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).stdout.strip() or "unknown"
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build_env["GIT_BRANCH"] = subprocess.run(
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["git", "-C", SOURCE_DIR, "rev-parse", "--abbrev-ref", "HEAD"],
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capture_output=True, text=True, timeout=10,
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).stdout.strip() or "unknown"
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build_env["GIT_COMMIT_DATE"] = subprocess.run(
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["git", "-C", SOURCE_DIR, "log", "-1", "--format=%cI"],
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capture_output=True, text=True, timeout=10,
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).stdout.strip() or "unknown"
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tag_result = subprocess.run(
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["git", "-C", SOURCE_DIR, "describe", "--tags", "--abbrev=0"],
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capture_output=True, text=True, timeout=10,
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)
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build_env["GIT_TAG"] = tag_result.stdout.strip() if tag_result.returncode == 0 else "unknown"
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except Exception as exc:
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logger.warning("Could not read version info from source: %s", exc)
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logger.info(
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"Rebuilding with GIT_TAG=%s GIT_COMMIT=%s GIT_BRANCH=%s",
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build_env.get("GIT_TAG", "?"),
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build_env.get("GIT_COMMIT", "?"),
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build_env.get("GIT_BRANCH", "?"),
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)
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# 5. Fire-and-forget docker compose rebuild — the container will restart itself
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compose_cmd = [
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"docker", "compose",
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"-f", f"{SOURCE_DIR}/docker-compose.yml",
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"up", "--build", "-d",
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]
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log_path = Path(BACKUP_DIR) / "update_rebuild.log"
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log_file = open(log_path, "w")
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subprocess.Popen(
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compose_cmd,
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stdout=log_file,
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stderr=log_file,
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env=build_env,
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)
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logger.info("docker compose up --build -d triggered — container will restart shortly.")
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return {
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"ok": True,
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"message": (
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"Update gestartet. Die App wird in ca. 60 Sekunden mit der neuen Version verfügbar sein."
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),
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"backup": backup_path,
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"pulled_branch": branch,
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}
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