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Use special keys to manage tenants

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This commit is contained in:
A.J. Beamon 2022-03-06 21:22:44 -08:00
parent 4aa053d342
commit bd64781ad9
1 changed files with 120 additions and 24 deletions
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144
fdbcli/TenantCommands.actor.cpp
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@ -32,6 +32,10 @@
#include "flow/actorcompiler.h" // This must be the last #include.
namespace fdb_cli {
const KeyRangeRef tenantSpecialKeyRange(LiteralStringRef("\xff\xff/management/tenant_map/"),
LiteralStringRef("\xff\xff/management/tenant_map0"));
// createtenant command
ACTOR Future<bool> createTenantCommandActor(Reference<IDatabase> db, std::vector<StringRef> tokens) {
if (tokens.size() != 2) {
@ -39,7 +43,35 @@ ACTOR Future<bool> createTenantCommandActor(Reference<IDatabase> db, std::vector
return false;
}
wait(ManagementAPI::createTenant(db, tokens[1]));
state Key tenantNameKey = fdb_cli::tenantSpecialKeyRange.begin.withSuffix(tokens[1]);
state Reference<ITransaction> tr = db->createTransaction();
state bool doneExistenceCheck = false;
loop {
tr->setOption(FDBTransactionOptions::SPECIAL_KEY_SPACE_ENABLE_WRITES);
try {
if (!doneExistenceCheck) {
Optional<Value> existingTenant = wait(safeThreadFutureToFuture(tr->get(tenantNameKey)));
if (existingTenant.present()) {
throw tenant_already_exists();
}
doneExistenceCheck = true;
}
tr->set(tenantNameKey, ValueRef());
wait(safeThreadFutureToFuture(tr->commit()));
break;
} catch (Error& e) {
state Error err(e);
if (e.code() == error_code_special_keys_api_failure) {
std::string errorMsgStr = wait(fdb_cli::getSpecialKeysFailureErrorMessage(tr));
fprintf(stderr, "ERROR: %s\n", errorMsgStr.c_str());
return false;
}
wait(safeThreadFutureToFuture(tr->onError(err)));
}
}
printf("The tenant `%s' has been created.\n", printable(tokens[1]).c_str());
return true;
}
@ -56,7 +88,35 @@ ACTOR Future<bool> deleteTenantCommandActor(Reference<IDatabase> db, std::vector
return false;
}
wait(ManagementAPI::deleteTenant(db, tokens[1]));
state Key tenantNameKey = fdb_cli::tenantSpecialKeyRange.begin.withSuffix(tokens[1]);
state Reference<ITransaction> tr = db->createTransaction();
state bool doneExistenceCheck = false;
loop {
tr->setOption(FDBTransactionOptions::SPECIAL_KEY_SPACE_ENABLE_WRITES);
try {
if (!doneExistenceCheck) {
Optional<Value> existingTenant = wait(safeThreadFutureToFuture(tr->get(tenantNameKey)));
if (!existingTenant.present()) {
throw tenant_not_found();
}
doneExistenceCheck = true;
}
tr->clear(tenantNameKey);
wait(safeThreadFutureToFuture(tr->commit()));
break;
} catch (Error& e) {
state Error err(e);
if (e.code() == error_code_special_keys_api_failure) {
std::string errorMsgStr = wait(fdb_cli::getSpecialKeysFailureErrorMessage(tr));
fprintf(stderr, "ERROR: %s\n", errorMsgStr.c_str());
return false;
}
wait(safeThreadFutureToFuture(tr->onError(err)));
}
}
printf("The tenant `%s' has been deleted.\n", printable(tokens[1]).c_str());
return true;
}
@ -75,16 +135,16 @@ ACTOR Future<bool> listTenantsCommandActor(Reference<IDatabase> db, std::vector<
return false;
}
StringRef begin = ""_sr;
StringRef end = "\xff\xff"_sr;
StringRef beginTenant = ""_sr;
StringRef endTenant = "\xff\xff"_sr;
state int limit = 100;
if (tokens.size() >= 2) {
begin = tokens[1];
beginTenant = tokens[1];
}
if (tokens.size() >= 3) {
end = tokens[2];
if (end <= begin) {
endTenant = tokens[2];
if (endTenant <= beginTenant) {
fprintf(stderr, "ERROR: end must be larger than begin");
return false;
}
@ -97,22 +157,41 @@ ACTOR Future<bool> listTenantsCommandActor(Reference<IDatabase> db, std::vector<
}
}
Standalone<VectorRef<StringRef>> tenants = wait(ManagementAPI::listTenants(db, begin, end, limit));
state Key beginTenantKey = fdb_cli::tenantSpecialKeyRange.begin.withSuffix(beginTenant);
state Key endTenantKey = fdb_cli::tenantSpecialKeyRange.begin.withSuffix(endTenant);
state Reference<ITransaction> tr = db->createTransaction();
if (tenants.empty()) {
if (tokens.size() == 1) {
printf("The cluster has no tenants.\n");
} else {
printf("The cluster has no tenants in the specified range.\n");
loop {
try {
RangeResult tenants = wait(safeThreadFutureToFuture(
tr->getRange(firstGreaterOrEqual(beginTenantKey), firstGreaterOrEqual(endTenantKey), limit)));
if (tenants.empty()) {
if (tokens.size() == 1) {
printf("The cluster has no tenants.\n");
} else {
printf("The cluster has no tenants in the specified range.\n");
}
}
int index = 0;
for (auto tenant : tenants) {
printf(" %d. %s\n",
++index,
printable(tenant.key.removePrefix(fdb_cli::tenantSpecialKeyRange.begin)).c_str());
}
return true;
} catch (Error& e) {
state Error err(e);
if (e.code() == error_code_special_keys_api_failure) {
std::string errorMsgStr = wait(fdb_cli::getSpecialKeysFailureErrorMessage(tr));
fprintf(stderr, "ERROR: %s\n", errorMsgStr.c_str());
return false;
}
wait(safeThreadFutureToFuture(tr->onError(err)));
}
}
int index = 0;
for (auto tenant : tenants) {
printf(" %d. %s\n", ++index, printable(tenant).c_str());
}
return true;
}
CommandFactory listTenantsFactory(
@ -129,11 +208,28 @@ ACTOR Future<bool> getTenantCommandActor(Reference<IDatabase> db, std::vector<St
return false;
}
TenantMapEntry tenant = wait(ManagementAPI::getTenant(db, tokens[1]));
printf(" ID: %" PRId64 "\n", tenant.id);
printf(" Prefix: %s\n", printable(tenant.prefix).c_str());
state Key tenantNameKey = fdb_cli::tenantSpecialKeyRange.begin.withSuffix(tokens[1]);
state Reference<ITransaction> tr = db->createTransaction();
return true;
loop {
try {
Optional<Value> tenant = wait(safeThreadFutureToFuture(tr->get(tenantNameKey)));
if (!tenant.present()) {
throw tenant_not_found();
}
printf(" %s\n", tenant.get().toString().c_str());
return true;
} catch (Error& e) {
state Error err(e);
if (e.code() == error_code_special_keys_api_failure) {
std::string errorMsgStr = wait(fdb_cli::getSpecialKeysFailureErrorMessage(tr));
fprintf(stderr, "ERROR: %s\n", errorMsgStr.c_str());
return false;
}
wait(safeThreadFutureToFuture(tr->onError(err)));
}
}
}
CommandFactory getTenantFactory("gettenant",