diff options
Diffstat (limited to '')
| -rw-r--r-- | src/rgw/services/svc_zone.cc | 1100 |
1 files changed, 1100 insertions, 0 deletions
diff --git a/src/rgw/services/svc_zone.cc b/src/rgw/services/svc_zone.cc new file mode 100644 index 000000000..180d93712 --- /dev/null +++ b/src/rgw/services/svc_zone.cc @@ -0,0 +1,1100 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab ft=cpp + +#include "svc_zone.h" +#include "svc_rados.h" +#include "svc_sys_obj.h" +#include "svc_sync_modules.h" + +#include "rgw_zone.h" +#include "rgw_rest_conn.h" +#include "rgw_bucket_sync.h" + +#include "common/errno.h" +#include "include/random.h" + +#define dout_subsys ceph_subsys_rgw + +using namespace std; +using namespace rgw_zone_defaults; + +RGWSI_Zone::RGWSI_Zone(CephContext *cct) : RGWServiceInstance(cct) +{ +} + +void RGWSI_Zone::init(RGWSI_SysObj *_sysobj_svc, + RGWSI_RADOS * _rados_svc, + RGWSI_SyncModules * _sync_modules_svc, + RGWSI_Bucket_Sync *_bucket_sync_svc) +{ + sysobj_svc = _sysobj_svc; + rados_svc = _rados_svc; + sync_modules_svc = _sync_modules_svc; + bucket_sync_svc = _bucket_sync_svc; + + realm = new RGWRealm(); + zonegroup = new RGWZoneGroup(); + zone_public_config = new RGWZone(); + zone_params = new RGWZoneParams(); + current_period = new RGWPeriod(); +} + +RGWSI_Zone::~RGWSI_Zone() +{ + delete realm; + delete zonegroup; + delete zone_public_config; + delete zone_params; + delete current_period; +} + +std::shared_ptr<RGWBucketSyncPolicyHandler> RGWSI_Zone::get_sync_policy_handler(std::optional<rgw_zone_id> zone) const { + if (!zone || *zone == zone_id()) { + return sync_policy_handler; + } + auto iter = sync_policy_handlers.find(*zone); + if (iter == sync_policy_handlers.end()) { + return std::shared_ptr<RGWBucketSyncPolicyHandler>(); + } + return iter->second; +} + +bool RGWSI_Zone::zone_syncs_from(const RGWZone& target_zone, const RGWZone& source_zone) const +{ + return target_zone.syncs_from(source_zone.name) && + sync_modules_svc->get_manager()->supports_data_export(source_zone.tier_type); +} + +bool RGWSI_Zone::zone_syncs_from(const RGWZone& source_zone) const +{ + auto target_zone = get_zone(); + bool found = false; + + for (auto s : data_sync_source_zones) { + if (s->id == source_zone.id) { + found = true; + break; + } + } + return found && target_zone.syncs_from(source_zone.name) && + sync_modules_svc->get_manager()->supports_data_export(source_zone.tier_type); +} + +int RGWSI_Zone::search_realm_with_zone(const DoutPrefixProvider *dpp, + const rgw_zone_id& zid, + RGWRealm *prealm, + RGWPeriod *pperiod, + RGWZoneGroup *pzonegroup, + bool *pfound, + optional_yield y) +{ + auto& found = *pfound; + + found = false; + + list<string> realms; + int r = list_realms(dpp, realms); + if (r < 0) { + ldpp_dout(dpp, 0) << "ERROR: failed to list realms: r=" << r << dendl; + return r; + } + + for (auto& realm_name : realms) { + string realm_id; + RGWRealm realm(realm_id, realm_name); + r = realm.init(dpp, cct, sysobj_svc, y); + if (r < 0) { + ldpp_dout(dpp, 0) << "WARNING: can't open realm " << realm_name << ": " << cpp_strerror(-r) << " ... skipping" << dendl; + continue; + } + + r = realm.find_zone(dpp, zid, pperiod, + pzonegroup, &found, y); + if (r < 0) { + ldpp_dout(dpp, 20) << __func__ << "(): ERROR: realm.find_zone() returned r=" << r<< dendl; + return r; + } + + if (found) { + *prealm = realm; + ldpp_dout(dpp, 20) << __func__ << "(): found realm_id=" << realm_id << " realm_name=" << realm_name << dendl; + return 0; + } + } + + return 0; +} + +int RGWSI_Zone::do_start(optional_yield y, const DoutPrefixProvider *dpp) +{ + int ret = sysobj_svc->start(y, dpp); + if (ret < 0) { + return ret; + } + + assert(sysobj_svc->is_started()); /* if not then there's ordering issue */ + + ret = rados_svc->start(y, dpp); + if (ret < 0) { + return ret; + } + + ret = realm->init(dpp, cct, sysobj_svc, y); + if (ret < 0 && ret != -ENOENT) { + ldpp_dout(dpp, 0) << "failed reading realm info: ret "<< ret << " " << cpp_strerror(-ret) << dendl; + return ret; + } + + ldpp_dout(dpp, 20) << "realm " << realm->get_name() << " " << realm->get_id() << dendl; + ret = current_period->init(dpp, cct, sysobj_svc, realm->get_id(), y, + realm->get_name()); + if (ret < 0 && ret != -ENOENT) { + ldpp_dout(dpp, 0) << "failed reading current period info: " << " " << cpp_strerror(-ret) << dendl; + return ret; + } + + ret = zone_params->init(dpp, cct, sysobj_svc, y); + bool found_zone = (ret == 0); + if (ret < 0 && ret != -ENOENT) { + lderr(cct) << "failed reading zone info: ret "<< ret << " " << cpp_strerror(-ret) << dendl; + return ret; + } + + cur_zone_id = rgw_zone_id(zone_params->get_id()); + + bool found_period_conf = false; + + /* try to find zone in period config (if we have one) */ + if (found_zone && + !current_period->get_id().empty()) { + found_period_conf = current_period->find_zone(dpp, + cur_zone_id, + zonegroup, + y); + if (ret < 0) { + ldpp_dout(dpp, 0) << "ERROR: current_period->find_zone() returned ret=" << ret << dendl; + return ret; + } + if (!found_period_conf) { + ldpp_dout(dpp, 0) << "period (" << current_period->get_id() << " does not have zone " << cur_zone_id << " configured" << dendl; + } + } + + RGWRealm search_realm; + + if (found_zone && + !found_period_conf) { + ldpp_dout(dpp, 20) << "searching for the correct realm" << dendl; + ret = search_realm_with_zone(dpp, + cur_zone_id, + realm, + current_period, + zonegroup, + &found_period_conf, + y); + if (ret < 0) { + ldpp_dout(dpp, 0) << "ERROR: search_realm_conf() failed: ret="<< ret << dendl; + return ret; + } + } + bool zg_initialized = found_period_conf; + + if (!zg_initialized) { + /* couldn't find a proper period config, use local zonegroup */ + ret = zonegroup->init(dpp, cct, sysobj_svc, y); + zg_initialized = (ret == 0); + if (ret < 0 && ret != -ENOENT) { + ldpp_dout(dpp, 0) << "failed reading zonegroup info: " << cpp_strerror(-ret) << dendl; + return ret; + } + } + + auto& zonegroup_param = cct->_conf->rgw_zonegroup; + bool init_from_period = found_period_conf; + bool explicit_zg = !zonegroup_param.empty(); + + if (!zg_initialized && + (!explicit_zg || zonegroup_param == default_zonegroup_name)) { + /* we couldn't initialize any zonegroup, + falling back to a non-multisite config with default zonegroup */ + ret = create_default_zg(dpp, y); + if (ret < 0) { + return ret; + } + zg_initialized = true; + } + + if (!zg_initialized) { + ldpp_dout(dpp, 0) << "ERROR: could not find zonegroup (" << zonegroup_param << ")" << dendl; + return -ENOENT; + } + + /* we have zonegroup now */ + + if (explicit_zg && + zonegroup->get_name() != zonegroup_param) { + ldpp_dout(dpp, 0) << "ERROR: incorrect zonegroup: " << zonegroup_param << " (got: " << zonegroup_param << ", expected: " << zonegroup->get_name() << ")" << dendl; + return -EINVAL; + } + + auto& zone_param = cct->_conf->rgw_zone; + bool explicit_zone = !zone_param.empty(); + + if (!found_zone) { + if ((!explicit_zone || zone_param == default_zone_name) && + zonegroup->get_name() == default_zonegroup_name) { + ret = init_default_zone(dpp, y); + if (ret < 0 && ret != -ENOENT) { + return ret; + } + cur_zone_id = zone_params->get_id(); + } else { + ldpp_dout(dpp, 0) << "ERROR: could not find zone (" << zone_param << ")" << dendl; + return -ENOENT; + } + } + + /* we have zone now */ + + auto zone_iter = zonegroup->zones.find(zone_params->get_id()); + if (zone_iter == zonegroup->zones.end()) { + /* shouldn't happen if relying on period config */ + if (!init_from_period) { + ldpp_dout(dpp, -1) << "Cannot find zone id=" << zone_params->get_id() << " (name=" << zone_params->get_name() << ")" << dendl; + return -EINVAL; + } + ldpp_dout(dpp, 1) << "Cannot find zone id=" << zone_params->get_id() << " (name=" << zone_params->get_name() << "), switching to local zonegroup configuration" << dendl; + init_from_period = false; + zone_iter = zonegroup->zones.find(zone_params->get_id()); + } + if (zone_iter == zonegroup->zones.end()) { + ldpp_dout(dpp, -1) << "Cannot find zone id=" << zone_params->get_id() << " (name=" << zone_params->get_name() << ")" << dendl; + return -EINVAL; + } + *zone_public_config = zone_iter->second; + ldout(cct, 20) << "zone " << zone_params->get_name() << " found" << dendl; + + ldpp_dout(dpp, 4) << "Realm: " << std::left << setw(20) << realm->get_name() << " (" << realm->get_id() << ")" << dendl; + ldpp_dout(dpp, 4) << "ZoneGroup: " << std::left << setw(20) << zonegroup->get_name() << " (" << zonegroup->get_id() << ")" << dendl; + ldpp_dout(dpp, 4) << "Zone: " << std::left << setw(20) << zone_params->get_name() << " (" << zone_params->get_id() << ")" << dendl; + + if (init_from_period) { + ldpp_dout(dpp, 4) << "using period configuration: " << current_period->get_id() << ":" << current_period->get_epoch() << dendl; + ret = init_zg_from_period(dpp, y); + if (ret < 0) { + return ret; + } + } else { + ldout(cct, 10) << "cannot find current period zonegroup using local zonegroup configuration" << dendl; + ret = init_zg_from_local(dpp, y); + if (ret < 0) { + return ret; + } + // read period_config into current_period + auto& period_config = current_period->get_config(); + ret = period_config.read(dpp, sysobj_svc, zonegroup->realm_id, y); + if (ret < 0 && ret != -ENOENT) { + ldout(cct, 0) << "ERROR: failed to read period config: " + << cpp_strerror(ret) << dendl; + return ret; + } + } + + zone_short_id = current_period->get_map().get_zone_short_id(zone_params->get_id()); + + for (auto ziter : zonegroup->zones) { + auto zone_handler = std::make_shared<RGWBucketSyncPolicyHandler>(this, sync_modules_svc, bucket_sync_svc, ziter.second.id); + ret = zone_handler->init(dpp, y); + if (ret < 0) { + ldpp_dout(dpp, -1) << "ERROR: could not initialize zone policy handler for zone=" << ziter.second.name << dendl; + return ret; + } + sync_policy_handlers[ziter.second.id] = zone_handler; + } + + sync_policy_handler = sync_policy_handlers[zone_id()]; /* we made sure earlier that zonegroup->zones has our zone */ + + set<rgw_zone_id> source_zones; + set<rgw_zone_id> target_zones; + + sync_policy_handler->reflect(dpp, nullptr, nullptr, + nullptr, nullptr, + &source_zones, + &target_zones, + false); /* relaxed: also get all zones that we allow to sync to/from */ + + ret = sync_modules_svc->start(y, dpp); + if (ret < 0) { + return ret; + } + + auto sync_modules = sync_modules_svc->get_manager(); + RGWSyncModuleRef sm; + if (!sync_modules->get_module(zone_public_config->tier_type, &sm)) { + ldpp_dout(dpp, -1) << "ERROR: tier type not found: " << zone_public_config->tier_type << dendl; + return -EINVAL; + } + + writeable_zone = sm->supports_writes(); + exports_data = sm->supports_data_export(); + + /* first build all zones index */ + for (auto ziter : zonegroup->zones) { + const rgw_zone_id& id = ziter.first; + RGWZone& z = ziter.second; + zone_id_by_name[z.name] = id; + zone_by_id[id] = z; + } + + if (zone_by_id.find(zone_id()) == zone_by_id.end()) { + ldpp_dout(dpp, 0) << "WARNING: could not find zone config in zonegroup for local zone (" << zone_id() << "), will use defaults" << dendl; + } + + for (const auto& ziter : zonegroup->zones) { + const rgw_zone_id& id = ziter.first; + const RGWZone& z = ziter.second; + if (id == zone_id()) { + continue; + } + if (z.endpoints.empty()) { + ldpp_dout(dpp, 0) << "WARNING: can't generate connection for zone " << z.id << " id " << z.name << ": no endpoints defined" << dendl; + continue; + } + ldpp_dout(dpp, 20) << "generating connection object for zone " << z.name << " id " << z.id << dendl; + RGWRESTConn *conn = new RGWRESTConn(cct, z.id, z.endpoints, zone_params->system_key, zonegroup->get_id(), zonegroup->api_name); + zone_conn_map[id] = conn; + + bool zone_is_source = source_zones.find(z.id) != source_zones.end(); + bool zone_is_target = target_zones.find(z.id) != target_zones.end(); + + if (zone_is_source || zone_is_target) { + if (zone_is_source && sync_modules->supports_data_export(z.tier_type)) { + data_sync_source_zones.push_back(&z); + } + if (zone_is_target) { + zone_data_notify_to_map[id] = conn; + } + } else { + ldpp_dout(dpp, 20) << "NOTICE: not syncing to/from zone " << z.name << " id " << z.id << dendl; + } + } + + ldpp_dout(dpp, 20) << "started zone id=" << zone_params->get_id() << " (name=" << zone_params->get_name() << + ") with tier type = " << zone_public_config->tier_type << dendl; + + return 0; +} + +void RGWSI_Zone::shutdown() +{ + delete rest_master_conn; + + for (auto& item : zone_conn_map) { + auto conn = item.second; + delete conn; + } + + for (auto& item : zonegroup_conn_map) { + auto conn = item.second; + delete conn; + } +} + +int RGWSI_Zone::list_regions(const DoutPrefixProvider *dpp, list<string>& regions) +{ + RGWZoneGroup zonegroup; + RGWSI_SysObj::Pool syspool = sysobj_svc->get_pool(zonegroup.get_pool(cct)); + + return syspool.list_prefixed_objs(dpp, region_info_oid_prefix, ®ions); +} + +int RGWSI_Zone::list_zonegroups(const DoutPrefixProvider *dpp, list<string>& zonegroups) +{ + RGWZoneGroup zonegroup; + RGWSI_SysObj::Pool syspool = sysobj_svc->get_pool(zonegroup.get_pool(cct)); + + return syspool.list_prefixed_objs(dpp, zonegroup_names_oid_prefix, &zonegroups); +} + +int RGWSI_Zone::list_zones(const DoutPrefixProvider *dpp, list<string>& zones) +{ + RGWZoneParams zoneparams; + RGWSI_SysObj::Pool syspool = sysobj_svc->get_pool(zoneparams.get_pool(cct)); + + return syspool.list_prefixed_objs(dpp, zone_names_oid_prefix, &zones); +} + +int RGWSI_Zone::list_realms(const DoutPrefixProvider *dpp, list<string>& realms) +{ + RGWRealm realm(cct, sysobj_svc); + RGWSI_SysObj::Pool syspool = sysobj_svc->get_pool(realm.get_pool(cct)); + + return syspool.list_prefixed_objs(dpp, realm_names_oid_prefix, &realms); +} + +int RGWSI_Zone::list_periods(const DoutPrefixProvider *dpp, list<string>& periods) +{ + RGWPeriod period; + list<string> raw_periods; + RGWSI_SysObj::Pool syspool = sysobj_svc->get_pool(period.get_pool(cct)); + int ret = syspool.list_prefixed_objs(dpp, period.get_info_oid_prefix(), &raw_periods); + if (ret < 0) { + return ret; + } + for (const auto& oid : raw_periods) { + size_t pos = oid.find("."); + if (pos != std::string::npos) { + periods.push_back(oid.substr(0, pos)); + } else { + periods.push_back(oid); + } + } + periods.sort(); // unique() only detects duplicates if they're adjacent + periods.unique(); + return 0; +} + + +int RGWSI_Zone::list_periods(const DoutPrefixProvider *dpp, const string& current_period, list<string>& periods, optional_yield y) +{ + int ret = 0; + string period_id = current_period; + while(!period_id.empty()) { + RGWPeriod period(period_id); + ret = period.init(dpp, cct, sysobj_svc, y); + if (ret < 0) { + return ret; + } + periods.push_back(period.get_id()); + period_id = period.get_predecessor(); + } + + return ret; +} + +/** + * Add new connection to connections map + * @param zonegroup_conn_map map which new connection will be added to + * @param zonegroup zonegroup which new connection will connect to + * @param new_connection pointer to new connection instance + */ +static void add_new_connection_to_map(map<string, RGWRESTConn *> &zonegroup_conn_map, + const RGWZoneGroup &zonegroup, RGWRESTConn *new_connection) +{ + // Delete if connection is already exists + map<string, RGWRESTConn *>::iterator iterZoneGroup = zonegroup_conn_map.find(zonegroup.get_id()); + if (iterZoneGroup != zonegroup_conn_map.end()) { + delete iterZoneGroup->second; + } + + // Add new connection to connections map + zonegroup_conn_map[zonegroup.get_id()] = new_connection; +} + +int RGWSI_Zone::init_zg_from_period(const DoutPrefixProvider *dpp, optional_yield y) +{ + ldout(cct, 20) << "period zonegroup name " << zonegroup->get_name() << dendl; + + map<string, RGWZoneGroup>::const_iterator iter = + current_period->get_map().zonegroups.find(zonegroup->get_id()); + + if (iter != current_period->get_map().zonegroups.end()) { + ldpp_dout(dpp, 20) << "using current period zonegroup " << zonegroup->get_name() << dendl; + *zonegroup = iter->second; + int ret = zonegroup->init(dpp, cct, sysobj_svc, y, false); + if (ret < 0) { + ldpp_dout(dpp, 0) << "failed init zonegroup: " << " " << cpp_strerror(-ret) << dendl; + return ret; + } + } + for (iter = current_period->get_map().zonegroups.begin(); + iter != current_period->get_map().zonegroups.end(); ++iter){ + const RGWZoneGroup& zg = iter->second; + // use endpoints from the zonegroup's master zone + auto master = zg.zones.find(zg.master_zone); + if (master == zg.zones.end()) { + // Check for empty zonegroup which can happen if zone was deleted before removal + if (zg.zones.size() == 0) + continue; + // fix missing master zone for a single zone zonegroup + if (zg.master_zone.empty() && zg.zones.size() == 1) { + master = zg.zones.begin(); + ldpp_dout(dpp, 0) << "zonegroup " << zg.get_name() << " missing master_zone, setting zone " << + master->second.name << " id:" << master->second.id << " as master" << dendl; + if (zonegroup->get_id() == zg.get_id()) { + zonegroup->master_zone = master->second.id; + int ret = zonegroup->update(dpp, y); + if (ret < 0) { + ldpp_dout(dpp, 0) << "error updating zonegroup : " << cpp_strerror(-ret) << dendl; + return ret; + } + } else { + RGWZoneGroup fixed_zg(zg.get_id(),zg.get_name()); + int ret = fixed_zg.init(dpp, cct, sysobj_svc, y); + if (ret < 0) { + ldpp_dout(dpp, 0) << "error initializing zonegroup : " << cpp_strerror(-ret) << dendl; + return ret; + } + fixed_zg.master_zone = master->second.id; + ret = fixed_zg.update(dpp, y); + if (ret < 0) { + ldpp_dout(dpp, 0) << "error initializing zonegroup : " << cpp_strerror(-ret) << dendl; + return ret; + } + } + } else { + ldpp_dout(dpp, 0) << "zonegroup " << zg.get_name() << " missing zone for master_zone=" << + zg.master_zone << dendl; + return -EINVAL; + } + } + const auto& endpoints = master->second.endpoints; + add_new_connection_to_map(zonegroup_conn_map, zg, new RGWRESTConn(cct, zg.get_id(), endpoints, zone_params->system_key, zonegroup->get_id(), zg.api_name)); + if (!current_period->get_master_zonegroup().empty() && + zg.get_id() == current_period->get_master_zonegroup()) { + rest_master_conn = new RGWRESTConn(cct, zg.get_id(), endpoints, zone_params->system_key, zonegroup->get_id(), zg.api_name); + } + } + + return 0; +} + +int RGWSI_Zone::create_default_zg(const DoutPrefixProvider *dpp, optional_yield y) +{ + ldout(cct, 10) << "Creating default zonegroup " << dendl; + int ret = zonegroup->create_default(dpp, y); + if (ret < 0) { + ldpp_dout(dpp, 0) << "failure in zonegroup create_default: ret "<< ret << " " << cpp_strerror(-ret) + << dendl; + return ret; + } + ret = zonegroup->init(dpp, cct, sysobj_svc, y); + if (ret < 0) { + ldout(cct, 0) << "failure in zonegroup create_default: ret "<< ret << " " << cpp_strerror(-ret) + << dendl; + return ret; + } + + return 0; +} + +int RGWSI_Zone::init_default_zone(const DoutPrefixProvider *dpp, optional_yield y) +{ + ldpp_dout(dpp, 10) << " Using default name "<< default_zone_name << dendl; + zone_params->set_name(default_zone_name); + int ret = zone_params->init(dpp, cct, sysobj_svc, y); + if (ret < 0 && ret != -ENOENT) { + ldpp_dout(dpp, 0) << "failed reading zone params info: " << " " << cpp_strerror(-ret) << dendl; + return ret; + } + + return 0; +} + +int RGWSI_Zone::init_zg_from_local(const DoutPrefixProvider *dpp, optional_yield y) +{ + ldpp_dout(dpp, 20) << "zonegroup " << zonegroup->get_name() << dendl; + if (zonegroup->is_master_zonegroup()) { + // use endpoints from the zonegroup's master zone + auto master = zonegroup->zones.find(zonegroup->master_zone); + if (master == zonegroup->zones.end()) { + // fix missing master zone for a single zone zonegroup + if (zonegroup->master_zone.empty() && zonegroup->zones.size() == 1) { + master = zonegroup->zones.begin(); + ldpp_dout(dpp, 0) << "zonegroup " << zonegroup->get_name() << " missing master_zone, setting zone " << + master->second.name << " id:" << master->second.id << " as master" << dendl; + zonegroup->master_zone = master->second.id; + int ret = zonegroup->update(dpp, y); + if (ret < 0) { + ldpp_dout(dpp, 0) << "error initializing zonegroup : " << cpp_strerror(-ret) << dendl; + return ret; + } + } else { + ldpp_dout(dpp, 0) << "zonegroup " << zonegroup->get_name() << " missing zone for " + "master_zone=" << zonegroup->master_zone << dendl; + return -EINVAL; + } + } + const auto& endpoints = master->second.endpoints; + rest_master_conn = new RGWRESTConn(cct, zonegroup->get_id(), endpoints, zone_params->system_key, zonegroup->get_id(), zonegroup->api_name); + } + + return 0; +} + +const RGWZoneParams& RGWSI_Zone::get_zone_params() const +{ + return *zone_params; +} + +const RGWZone& RGWSI_Zone::get_zone() const +{ + return *zone_public_config; +} + +const RGWZoneGroup& RGWSI_Zone::get_zonegroup() const +{ + return *zonegroup; +} + +int RGWSI_Zone::get_zonegroup(const string& id, RGWZoneGroup& zg) const +{ + int ret = 0; + if (id == zonegroup->get_id()) { + zg = *zonegroup; + } else if (!current_period->get_id().empty()) { + ret = current_period->get_zonegroup(zg, id); + } + return ret; +} + +const RGWRealm& RGWSI_Zone::get_realm() const +{ + return *realm; +} + +const RGWPeriod& RGWSI_Zone::get_current_period() const +{ + return *current_period; +} + +const string& RGWSI_Zone::get_current_period_id() const +{ + return current_period->get_id(); +} + +bool RGWSI_Zone::has_zonegroup_api(const std::string& api) const +{ + if (!current_period->get_id().empty()) { + const auto& zonegroups_by_api = current_period->get_map().zonegroups_by_api; + if (zonegroups_by_api.find(api) != zonegroups_by_api.end()) + return true; + } else if (zonegroup->api_name == api) { + return true; + } + return false; +} + +bool RGWSI_Zone::zone_is_writeable() +{ + return writeable_zone && !get_zone().is_read_only(); +} + +uint32_t RGWSI_Zone::get_zone_short_id() const +{ + return zone_short_id; +} + +const string& RGWSI_Zone::zone_name() const +{ + return get_zone_params().get_name(); +} + +RGWZone* RGWSI_Zone::find_zone(const rgw_zone_id& id) +{ + auto iter = zone_by_id.find(id); + if (iter == zone_by_id.end()) { + return nullptr; + } + return &(iter->second); +} + +RGWRESTConn *RGWSI_Zone::get_zone_conn(const rgw_zone_id& zone_id) { + auto citer = zone_conn_map.find(zone_id.id); + if (citer == zone_conn_map.end()) { + return NULL; + } + + return citer->second; +} + +RGWRESTConn *RGWSI_Zone::get_zone_conn_by_name(const string& name) { + auto i = zone_id_by_name.find(name); + if (i == zone_id_by_name.end()) { + return NULL; + } + + return get_zone_conn(i->second); +} + +bool RGWSI_Zone::find_zone_id_by_name(const string& name, rgw_zone_id *id) { + auto i = zone_id_by_name.find(name); + if (i == zone_id_by_name.end()) { + return false; + } + *id = i->second; + return true; +} + +bool RGWSI_Zone::need_to_sync() const +{ + return !(zonegroup->master_zone.empty() || + !rest_master_conn || + current_period->get_id().empty()); +} + +bool RGWSI_Zone::need_to_log_data() const +{ + return (zone_public_config->log_data && sync_module_exports_data()); +} + +bool RGWSI_Zone::is_meta_master() const +{ + if (!zonegroup->is_master_zonegroup()) { + return false; + } + + return (zonegroup->master_zone == zone_public_config->id); +} + +bool RGWSI_Zone::need_to_log_metadata() const +{ + return is_meta_master() && + (zonegroup->zones.size() > 1 || current_period->is_multi_zonegroups_with_zones()); +} + +bool RGWSI_Zone::can_reshard() const +{ + if (current_period->get_id().empty()) { + return true; // no realm + } + if (zonegroup->zones.size() == 1 && current_period->is_single_zonegroup()) { + return true; // single zone/zonegroup + } + // 'resharding' feature enabled in zonegroup + return zonegroup->supports(rgw::zone_features::resharding); +} + +/** + * Check to see if the bucket metadata could be synced + * bucket: the bucket to check + * Returns false is the bucket is not synced + */ +bool RGWSI_Zone::is_syncing_bucket_meta(const rgw_bucket& bucket) +{ + + /* no current period */ + if (current_period->get_id().empty()) { + return false; + } + + /* zonegroup is not master zonegroup */ + if (!zonegroup->is_master_zonegroup()) { + return false; + } + + /* single zonegroup and a single zone */ + if (current_period->is_single_zonegroup() && zonegroup->zones.size() == 1) { + return false; + } + + /* zone is not master */ + if (zonegroup->master_zone != zone_public_config->id) { + return false; + } + + return true; +} + + +int RGWSI_Zone::select_new_bucket_location(const DoutPrefixProvider *dpp, const RGWUserInfo& user_info, const string& zonegroup_id, + const rgw_placement_rule& request_rule, + rgw_placement_rule *pselected_rule_name, RGWZonePlacementInfo *rule_info, + optional_yield y) +{ + /* first check that zonegroup exists within current period. */ + RGWZoneGroup zonegroup; + int ret = get_zonegroup(zonegroup_id, zonegroup); + if (ret < 0) { + ldpp_dout(dpp, 0) << "could not find zonegroup " << zonegroup_id << " in current period" << dendl; + return ret; + } + + const rgw_placement_rule *used_rule; + + /* find placement rule. Hierarchy: request rule > user default rule > zonegroup default rule */ + std::map<std::string, RGWZoneGroupPlacementTarget>::const_iterator titer; + + if (!request_rule.name.empty()) { + used_rule = &request_rule; + titer = zonegroup.placement_targets.find(request_rule.name); + if (titer == zonegroup.placement_targets.end()) { + ldpp_dout(dpp, 0) << "could not find requested placement id " << request_rule + << " within zonegroup " << dendl; + return -ERR_INVALID_LOCATION_CONSTRAINT; + } + } else if (!user_info.default_placement.name.empty()) { + used_rule = &user_info.default_placement; + titer = zonegroup.placement_targets.find(user_info.default_placement.name); + if (titer == zonegroup.placement_targets.end()) { + ldpp_dout(dpp, 0) << "could not find user default placement id " << user_info.default_placement + << " within zonegroup " << dendl; + return -ERR_INVALID_LOCATION_CONSTRAINT; + } + } else { + if (zonegroup.default_placement.name.empty()) { // zonegroup default rule as fallback, it should not be empty. + ldpp_dout(dpp, 0) << "misconfiguration, zonegroup default placement id should not be empty." << dendl; + return -ERR_ZONEGROUP_DEFAULT_PLACEMENT_MISCONFIGURATION; + } else { + used_rule = &zonegroup.default_placement; + titer = zonegroup.placement_targets.find(zonegroup.default_placement.name); + if (titer == zonegroup.placement_targets.end()) { + ldpp_dout(dpp, 0) << "could not find zonegroup default placement id " << zonegroup.default_placement + << " within zonegroup " << dendl; + return -ERR_INVALID_LOCATION_CONSTRAINT; + } + } + } + + /* now check tag for the rule, whether user is permitted to use rule */ + const auto& target_rule = titer->second; + if (!target_rule.user_permitted(user_info.placement_tags)) { + ldpp_dout(dpp, 0) << "user not permitted to use placement rule " << titer->first << dendl; + return -EPERM; + } + + const string *storage_class = &request_rule.storage_class; + + if (storage_class->empty()) { + storage_class = &used_rule->storage_class; + } + + rgw_placement_rule rule(titer->first, *storage_class); + + if (pselected_rule_name) { + *pselected_rule_name = rule; + } + + return select_bucket_location_by_rule(dpp, rule, rule_info, y); +} + +int RGWSI_Zone::select_bucket_location_by_rule(const DoutPrefixProvider *dpp, const rgw_placement_rule& location_rule, RGWZonePlacementInfo *rule_info, optional_yield y) +{ + if (location_rule.name.empty()) { + /* we can only reach here if we're trying to set a bucket location from a bucket + * created on a different zone, using a legacy / default pool configuration + */ + if (rule_info) { + return select_legacy_bucket_placement(dpp, rule_info, y); + } + + return 0; + } + + /* + * make sure that zone has this rule configured. We're + * checking it for the local zone, because that's where this bucket object is going to + * reside. + */ + auto piter = zone_params->placement_pools.find(location_rule.name); + if (piter == zone_params->placement_pools.end()) { + /* couldn't find, means we cannot really place data for this bucket in this zone */ + ldpp_dout(dpp, 0) << "ERROR: This zone does not contain placement rule " + << location_rule << " present in the zonegroup!" << dendl; + return -EINVAL; + } + + auto storage_class = location_rule.get_storage_class(); + if (!piter->second.storage_class_exists(storage_class)) { + ldpp_dout(dpp, 5) << "requested storage class does not exist: " << storage_class << dendl; + return -EINVAL; + } + + + RGWZonePlacementInfo& placement_info = piter->second; + + if (rule_info) { + *rule_info = placement_info; + } + + return 0; +} + +int RGWSI_Zone::select_bucket_placement(const DoutPrefixProvider *dpp, const RGWUserInfo& user_info, const string& zonegroup_id, + const rgw_placement_rule& placement_rule, + rgw_placement_rule *pselected_rule, RGWZonePlacementInfo *rule_info, + optional_yield y) +{ + if (!zone_params->placement_pools.empty()) { + return select_new_bucket_location(dpp, user_info, zonegroup_id, placement_rule, + pselected_rule, rule_info, y); + } + + if (pselected_rule) { + pselected_rule->clear(); + } + + if (rule_info) { + return select_legacy_bucket_placement(dpp, rule_info, y); + } + + return 0; +} + +int RGWSI_Zone::select_legacy_bucket_placement(const DoutPrefixProvider *dpp, RGWZonePlacementInfo *rule_info, + optional_yield y) +{ + bufferlist map_bl; + map<string, bufferlist> m; + string pool_name; + bool write_map = false; + + rgw_raw_obj obj(zone_params->domain_root, avail_pools); + + auto sysobj = sysobj_svc->get_obj(obj); + int ret = sysobj.rop().read(dpp, &map_bl, y); + if (ret < 0) { + goto read_omap; + } + + try { + auto iter = map_bl.cbegin(); + decode(m, iter); + } catch (buffer::error& err) { + ldpp_dout(dpp, 0) << "ERROR: couldn't decode avail_pools" << dendl; + } + +read_omap: + if (m.empty()) { + ret = sysobj.omap().get_all(dpp, &m, y); + + write_map = true; + } + + if (ret < 0 || m.empty()) { + vector<rgw_pool> pools; + string s = string("default.") + default_storage_pool_suffix; + pools.push_back(rgw_pool(s)); + vector<int> retcodes; + bufferlist bl; + ret = rados_svc->pool().create(dpp, pools, &retcodes); + if (ret < 0) + return ret; + ret = sysobj.omap().set(dpp, s, bl, y); + if (ret < 0) + return ret; + m[s] = bl; + } + + if (write_map) { + bufferlist new_bl; + encode(m, new_bl); + ret = sysobj.wop().write(dpp, new_bl, y); + if (ret < 0) { + ldpp_dout(dpp, 0) << "WARNING: could not save avail pools map info ret=" << ret << dendl; + } + } + + auto miter = m.begin(); + if (m.size() > 1) { + // choose a pool at random + auto r = ceph::util::generate_random_number<size_t>(0, m.size() - 1); + std::advance(miter, r); + } + pool_name = miter->first; + + rgw_pool pool = pool_name; + + rule_info->storage_classes.set_storage_class(RGW_STORAGE_CLASS_STANDARD, &pool, nullptr); + rule_info->data_extra_pool = pool_name; + rule_info->index_pool = pool_name; + rule_info->index_type = rgw::BucketIndexType::Normal; + + return 0; +} + +int RGWSI_Zone::update_placement_map(const DoutPrefixProvider *dpp, optional_yield y) +{ + bufferlist header; + map<string, bufferlist> m; + rgw_raw_obj obj(zone_params->domain_root, avail_pools); + + auto sysobj = sysobj_svc->get_obj(obj); + int ret = sysobj.omap().get_all(dpp, &m, y); + if (ret < 0) + return ret; + + bufferlist new_bl; + encode(m, new_bl); + ret = sysobj.wop().write(dpp, new_bl, y); + if (ret < 0) { + ldpp_dout(dpp, 0) << "WARNING: could not save avail pools map info ret=" << ret << dendl; + } + + return ret; +} + +int RGWSI_Zone::add_bucket_placement(const DoutPrefixProvider *dpp, const rgw_pool& new_pool, optional_yield y) +{ + int ret = rados_svc->pool(new_pool).lookup(); + if (ret < 0) { // DNE, or something + return ret; + } + + rgw_raw_obj obj(zone_params->domain_root, avail_pools); + auto sysobj = sysobj_svc->get_obj(obj); + + bufferlist empty_bl; + ret = sysobj.omap().set(dpp, new_pool.to_str(), empty_bl, y); + + // don't care about return value + update_placement_map(dpp, y); + + return ret; +} + +int RGWSI_Zone::remove_bucket_placement(const DoutPrefixProvider *dpp, const rgw_pool& old_pool, optional_yield y) +{ + rgw_raw_obj obj(zone_params->domain_root, avail_pools); + auto sysobj = sysobj_svc->get_obj(obj); + int ret = sysobj.omap().del(dpp, old_pool.to_str(), y); + + // don't care about return value + update_placement_map(dpp, y); + + return ret; +} + +int RGWSI_Zone::list_placement_set(const DoutPrefixProvider *dpp, set<rgw_pool>& names, optional_yield y) +{ + bufferlist header; + map<string, bufferlist> m; + + rgw_raw_obj obj(zone_params->domain_root, avail_pools); + auto sysobj = sysobj_svc->get_obj(obj); + int ret = sysobj.omap().get_all(dpp, &m, y); + if (ret < 0) + return ret; + + names.clear(); + map<string, bufferlist>::iterator miter; + for (miter = m.begin(); miter != m.end(); ++miter) { + names.insert(rgw_pool(miter->first)); + } + + return names.size(); +} + +bool RGWSI_Zone::get_redirect_zone_endpoint(string *endpoint) +{ + if (zone_public_config->redirect_zone.empty()) { + return false; + } + + auto iter = zone_conn_map.find(zone_public_config->redirect_zone); + if (iter == zone_conn_map.end()) { + ldout(cct, 0) << "ERROR: cannot find entry for redirect zone: " << zone_public_config->redirect_zone << dendl; + return false; + } + + RGWRESTConn *conn = iter->second; + + int ret = conn->get_url(*endpoint); + if (ret < 0) { + ldout(cct, 0) << "ERROR: redirect zone, conn->get_endpoint() returned ret=" << ret << dendl; + return false; + } + + return true; +} + |