Handle Miniflare metadata during Classic cutover and preserve daily backups

deploy/classic/backup.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+"""Bounded daily backup of Classic persistent accounts, characters and dashboard."""
+import argparse,gzip,json,os,pathlib,shutil,sqlite3,subprocess,time
+p=argparse.ArgumentParser();p.add_argument('--root',type=pathlib.Path,required=True);a=p.parse_args();root=a.root
+base=root/'backups';base.mkdir(mode=0o700,exist_ok=True)
+target=base/time.strftime('%Y%m%dT%H%M%SZ',time.gmtime());target.mkdir(mode=0o700)
+c=json.loads((root/'database-credentials.json').read_text())
+try:
+ with gzip.open(target/'classic-auth-characters.sql.gz','wb') as out:
+  p=subprocess.Popen(['docker','exec','-e','MYSQL_PWD','azerothai-classic-db','mysqldump','-uroot','--single-transaction','--set-gtid-purged=OFF','--databases','classicrealmd','classiccharacters'],stdout=subprocess.PIPE,stderr=subprocess.PIPE,env=dict(os.environ,MYSQL_PWD=c['root']))
+  shutil.copyfileobj(p.stdout,out)
+  if p.wait():raise RuntimeError('Classic backup failed')
+ dbs=[p for p in (root/'app-staging/.wrangler/state/v3/d1').rglob('*.sqlite') if p.name!='metadata.sqlite'];assert len(dbs)==1
+ source=sqlite3.connect(dbs[0]);dest=sqlite3.connect(target/'dashboard.sqlite');source.backup(dest);dest.close();source.close()
+ shutil.copytree(root/'run/etc',target/'config')
+ (target/'complete.json').write_text(json.dumps({'at':time.time(),'backend':'cmangos-classic'}))
+ for old in sorted(base.iterdir(),reverse=True)[3:]:
+  if old.is_dir() and (old/'complete.json').exists():shutil.rmtree(old)
+ print('Classic backup complete: '+str(target))
+except Exception:
+ (target/'failed').touch();raise