#!/usr/bin/env python3 """Bounded shared/Forgejo database recovery from the existing Scaleway primary; no in-place restore.""" import argparse import copy from datetime import datetime, timezone import json import os from pathlib import Path import secrets import subprocess import time from state_hub_preflight_lane import assert_cluster def run(k, receipt, source_cluster="apps-pg"): if source_cluster not in ("apps-pg", "forgejo-db"): raise ValueError("unsupported source cluster") def cmd(args,payload=None,check=True): r=subprocess.run(k+args,input=None if payload is None else json.dumps(payload).encode(),capture_output=True,timeout=180) if check and r.returncode: raise RuntimeError('bounded_restore_command_failed') return r def get(args): return json.loads(cmd(args).stdout) assert_cluster(k) live=get(['-n','databases','get','cluster',source_cluster,'-o','json']) store=copy.deepcopy(live['spec']['backup']['barmanObjectStore']) if store['destinationPath']!='s3://railiance-platform-pg-backup/platform-pg/'+source_cluster+'/' or store['endpointURL']!='https://s3.nl-ams.scw.cloud': raise RuntimeError('unexpected_primary_destination') recent=datetime.fromisoformat(live['status']['lastSuccessfulBackup'].replace('Z','+00:00')) if not 0 <= (datetime.now(timezone.utc)-recent).total_seconds() < 129600: raise RuntimeError('primary_backup_not_fresh') name=source_cluster+'-recovery-'+secrets.token_hex(4) receipt.update(namespace=name,primary_destination=store['destinationPath'],last_successful_backup=live['status']['lastSuccessfulBackup'],source='Scaleway Barman base backup and WAL',started_at=datetime.now(timezone.utc).isoformat()) created=False try: cmd(['create','namespace',name]);created=True receipt['stage']='credential_projection' # Exact existing S3 fields only; capture JSON in memory and never print it. for secret_name in {store['s3Credentials'][key]['name'] for key in ('accessKeyId','secretAccessKey')}: source=get(['-n','databases','get','secret',secret_name,'-o','json']) fields={store['s3Credentials'][key]['key'] for key in ('accessKeyId','secretAccessKey') if store['s3Credentials'][key]['name']==secret_name} doc={'apiVersion':'v1','kind':'Secret','metadata':{'name':secret_name,'namespace':name},'type':'Opaque','data':{f:source['data'][f] for f in fields}} cmd(['create','-f','-'],doc) policy={'apiVersion':'networking.k8s.io/v1','kind':'NetworkPolicy','metadata':{'name':'isolated-recovery','namespace':name},'spec':{'podSelector':{},'policyTypes':['Ingress','Egress'],'ingress':[{'from':[{'namespaceSelector':{'matchLabels':{'kubernetes.io/metadata.name':'cnpg-system'}}}],'ports':[{'port':8000,'protocol':'TCP'}]}],'egress':[{'ports':[{'port':p,'protocol':proto} for p,proto in [(443,'TCP'),(6443,'TCP'),(53,'TCP'),(53,'UDP')]]}]}} cmd(['create','-f','-'],policy) store['serverName']=source_cluster cluster={'apiVersion':'postgresql.cnpg.io/v1','kind':'Cluster','metadata':{'name':name,'namespace':name},'spec':{'instances':1,'imageName':live['spec']['imageName'],'enableSuperuserAccess':False,'storage':{'size':'10Gi'},'resources':{'requests':{'cpu':'100m','memory':'256Mi'},'limits':{'cpu':'1','memory':'1Gi'}},'bootstrap':{'recovery':{'source':source_cluster}},'externalClusters':[{'name':source_cluster,'barmanObjectStore':store}]}} receipt['stage']='physical_restore' cmd(['create','--dry-run=server','-f','-'],cluster) started=time.monotonic();cmd(['create','-f','-'],cluster) for _ in range(60): state=get(['-n',name,'get','cluster',name,'-o','json']) if any(c['type']=='Ready' and c['status']=='True' for c in state.get('status',{}).get('conditions',[])): break time.sleep(5) else: raise RuntimeError('scratch_restore_not_ready') receipt['restore_seconds']=round(time.monotonic()-started,2) pod=state['status']['currentPrimary'] def sql(database,query): return cmd(['-n',name,'exec',pod,'-c','postgres','--','psql','-U','postgres','-d',database,'-Atqc',query]).stdout.decode().strip() receipt['stage']='database_acceptance' databases=sql('postgres',"SELECT datname FROM pg_database WHERE NOT datistemplate ORDER BY datname;").splitlines() receipt['databases']=databases if source_cluster=='apps-pg': if not {'apps_meta','coulomb_social_db','vergabe_db'}.issubset(databases): raise RuntimeError('restored_database_missing') receipt['public_table_counts']={db:int(sql(db,"SELECT count(*) FROM pg_tables WHERE schemaname='public';")) for db in ['coulomb_social_db','vergabe_db']} roles=sql('postgres',"SELECT rolname || ':' || rolconnlimit FROM pg_roles WHERE rolname IN ('coulomb_social','vergabe') ORDER BY rolname;").splitlines() if roles!=['coulomb_social:20','vergabe:20']: raise RuntimeError('restored_role_boundary_mismatch') receipt['consumer_connection_limits_preserved']=True else: if 'forgejo' not in databases: raise RuntimeError('restored_database_missing') receipt['repository_count']=int(sql('forgejo','SELECT count(*) FROM repository;')) receipt['user_count']=int(sql('forgejo','SELECT count(*) FROM "user";')) receipt['package_blob_count']=int(sql('forgejo','SELECT count(*) FROM package_blob;')) if min(receipt['repository_count'],receipt['user_count'])<=0: raise RuntimeError('restored_forgejo_metadata_empty') live_after=get(['-n','databases','get','cluster',source_cluster,'-o','json']) receipt['production_ready']=any(c['type']=='Ready' and c['status']=='True' for c in live_after['status']['conditions']) if not receipt['production_ready']: raise RuntimeError('production_not_ready') receipt['status']='verified' finally: if created: receipt['cleanup']=cmd(['delete','namespace',name,'--wait=true','--timeout=120s'],check=False).returncode==0 receipt['finished_at']=datetime.now(timezone.utc).isoformat() def main(): p=argparse.ArgumentParser(description=__doc__);p.add_argument('--kubeconfig',required=True);p.add_argument('--receipt',required=True);p.add_argument('--source-cluster',choices=['apps-pg','forgejo-db'],default='apps-pg');a=p.parse_args() receipt={'schema':'platform.scaleway-primary-restore.v1','status':'failed'} fd=os.open(a.receipt,os.O_WRONLY|os.O_CREAT|os.O_EXCL,0o600) try: run(['kubectl','--kubeconfig',a.kubeconfig],receipt,a.source_cluster) except Exception: receipt['error']='primary_restore_failed' finally: with os.fdopen(fd,'w') as f: json.dump(receipt,f,indent=2) return int(receipt['status']!='verified' or not receipt.get('cleanup')) if __name__=='__main__': raise SystemExit(main())