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instance_flags.go
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package google_sql
import (
"errors"
"fmt"
"strconv"
"strings"
"k8s.io/utils/strings/slices"
)
type flagValidator = func(value string) error
const maxFloat32 float64 = 3.4028235e+38
const maxInt32 = 2147483647
const eightk = 8192
func ValidateFlag(key string, value string) error {
validatorFunc := validators[key]
if validatorFunc == nil {
return fmt.Errorf("NAISERATOR-9097: couldn't find validator for instance flag '%s'", key)
}
return validatorFunc(value)
}
var validators = map[string]flagValidator{
"auto_explain.log_analyze": toBool,
"auto_explain.log_buffers": toBool,
"auto_explain.log_min_duration": intWithinRange(-1, maxInt32),
"auto_explain.log_format": inEnum([]string{"text", "xml", "json", "yaml"}),
"auto_explain.log_level": inEnum([]string{"debug5", "debug4", "debug3", "debug2", "debug1", "debug", "info", "notice", "warning", "log"}),
"auto_explain.log_nested_statements": toBool,
"auto_explain.log_settings": toBool,
"auto_explain.log_timing": toBool,
"auto_explain.log_triggers": toBool,
"auto_explain.log_wal": toBool,
"auto_explain.log_verbose": toBool,
"auto_explain.sample_rate": floatWithinRange(0.0, 1.0),
"autovacuum": toBool,
"autovacuum_analyze_scale_factor": floatWithinRange(0.0, 100.0),
"autovacuum_analyze_threshold": intWithinRange(0, maxInt32),
"autovacuum_freeze_max_age": intWithinRange(0, 2000000000),
"autovacuum_max_workers": intWithinRange(1, 262142),
"autovacuum_multixact_freeze_max_age": intWithinRange(10000, 2000000000),
"autovacuum_naptime": intWithinRange(1, 2147483),
"autovacuum_vacuum_cost_delay": intWithinRange(-1, 100),
"autovacuum_vacuum_cost_limit": intWithinRange(-1, 10000),
"autovacuum_vacuum_scale_factor": floatWithinRange(0.0, 100.0),
"autovacuum_vacuum_threshold": intWithinRange(0, maxInt32),
"autovacuum_work_mem": intWithinRange(-1, maxInt32),
"checkpoint_completion_target": floatWithinRange(0.0, 1.0),
"checkpoint_timeout": intWithinRange(30, 86400),
"checkpoint_warning": intWithinRange(0, maxInt32),
"cloudsql.allow_passwordless_local_connections": toBool,
"cloudsql.enable_auto_explain": toBool,
"cloudsql.enable_pgaudit": toBool,
"cloudsql.enable_pg_bigm": toBool,
"cloudsql.enable_pg_cron": toBool,
"cloudsql.enable_pg_hint_plan": toBool,
"cloudsql.enable_pglogical": toBool,
"cloudsql.iam_authentication": toBool,
"cloudsql.logical_decoding": toBool,
"cloudsql.pg_shadow_select_role": notEmpty,
"commit_delay": intWithinRange(0, 100000),
"commit_siblings": intWithinRange(0, 1000),
"constraint_exclusion": inEnum([]string{"partition", "on", "off"}),
"cpu_index_tuple_cost": floatWithinRange(0.0, maxFloat32),
"cpu_operator_cost": floatWithinRange(0.0, maxFloat32),
"cpu_tuple_cost": floatWithinRange(0.0, maxFloat32),
"cron.database_name": notEmpty,
"cron.log_statement": toBool,
"cron.log_run": toBool,
"cron.max_running_jobs": intWithinRange(0, maxInt32),
"cron.log_min_messages": inEnum([]string{"debug5", "debug4", "debug3", "debug2", "debug1", "debug", "info", "notice", "warning", "error", "log", "fatal", "panic"}),
"cursor_tuple_fraction": floatWithinRange(0.0, 1.0),
"deadlock_timeout": intWithinRange(1, maxInt32),
"effective_cache_size": unit(eightk),
"default_statistics_target": intWithinRange(1, 10000),
"default_tablespace": notEmpty,
"default_transaction_deferrablze": toBool,
"default_transaction_isolation": inEnum([]string{"serializable", "repeatable read", "read committed", "read uncommitted"}),
"enable_bitmapscan": toBool,
"enable_hashagg": toBool,
"enable_hashjoin": toBool,
"enable_indexonlyscan": toBool,
"enable_indexscan": toBool,
"enable_material": toBool,
"enable_mergejoin": toBool,
"enable_nestloop": toBool,
"enable_seqscan": toBool,
"enable_sort": toBool,
"enable_tidscan": toBool,
"force_parallel_mode": inEnum([]string{"off", "on", "regress"}),
"from_collapse_limit": intWithinRange(1, maxInt32),
"geqo": toBool,
"geqo_effort": intWithinRange(1, 10),
"geqo_generations": intWithinRange(0, maxInt32),
"geqo_pool_size": intWithinRange(0, maxInt32),
"geqo_seed": floatWithinRange(0.0, 1.0),
"geqo_selection_bias": floatWithinRange(1.5, 2.0),
"geqo_threshold": intWithinRange(2, maxInt32),
"gin_fuzzy_search_limit": intWithinRange(0, maxInt32),
"gin_pending_list_limit": intWithinRange(64, maxInt32),
"hot_standby_feedback": toBool,
"huge_pages": inEnum([]string{"try", "off"}),
"idle_in_transaction_session_timeout": intWithinRange(0, maxInt32),
"join_collapse_limit": intWithinRange(1, maxInt32),
"lock_timeout": intWithinRange(0, maxInt32),
"log_autovacuum_min_duration": intWithinRange(-1, maxInt32),
"log_checkpoints": toBool,
"log_connections": toBool,
"log_disconnections": toBool,
"log_duration": toBool,
"log_error_verbosity": inEnum([]string{"terse", "default", "verbose"}),
"log_executor_stats": toBool,
"log_hostname": toBool,
"log_lock_waits": toBool,
"log_min_duration_statement": intWithinRange(-1, maxInt32),
"log_min_error_statement": inEnum([]string{"debug5", "debug4", "debug3", "debug2", "debug1", "info", "notice", "warning", "error", "log", "fatal", "panic"}),
"log_min_messages": inEnum([]string{"debug5", "debug4", "debug3", "debug2", "debug1", "info", "notice", "warning", "error", "log", "fatal", "panic"}),
"log_parser_stats": toBool,
"log_planner_stats": toBool,
"log_replication_commands": toBool,
"log_statement": inEnum([]string{"none", "ddl", "mod", "all"}),
"log_statement_stats": toBool,
"log_temp_files": intWithinRange(-1, maxInt32),
"maintenance_work_mem": intWithinRange(1024, maxInt32),
"max_connections": intWithinRange(1, maxInt32),
"max_locks_per_transaction": intWithinRange(10, maxInt32),
"max_logical_replication_workers": intWithinRange(4, 8192),
"max_parallel_maintenance_workers": intWithinRange(0, maxInt32),
"max_parallel_workers": intWithinRange(0, maxInt32),
"max_parallel_workers_per_gather": intWithinRange(0, maxInt32),
"max_pred_locks_per_page": intWithinRange(0, maxInt32),
"max_pred_locks_per_relation": intWithinRange(-2147483648, maxInt32),
"max_pred_locks_per_transaction": intWithinRange(0, 1048576),
"max_prepared_transactions": intWithinRange(0, maxInt32),
"max_replication_slots": intWithinRange(10, maxInt32),
"max_standby_archive_delay": intWithinRange(-1, maxInt32),
"max_standby_streaming_delay": intWithinRange(-1, maxInt32),
"max_sync_workers_per_subscription": intWithinRange(2, 64),
"max_wal_senders": intWithinRange(10, maxInt32),
"max_wal_size": intWithinRange(2, maxInt32),
"max_worker_processes": intWithinRange(8, maxInt32),
"min_parallel_relation_size": unit(eightk),
"min_wal_size": unit(16777216),
"old_snapshot_threshold": intWithinRange(0, 86400),
"parallel_setup_cost": floatWithinRange(0.0, maxFloat32),
"parallel_tuple_cost": floatWithinRange(0.0, maxFloat32),
"password_encryption": inEnum([]string{"md5", "scram-sha-256"}),
"pg_bigm.enable_recheck": toBool,
"pg_bigm.gin_key_limit": intWithinRange(0, maxInt32),
"pg_bigm.pg_bigm.similarity_limit": floatWithinRange(0.0, 1.0),
"pg_hint_plan.enable_hint": toBool,
"pg_hint_plan.debug_print": inEnum([]string{"off", "on", "detailed", "verbose", "0", "1", "2", "3", "no", "yes", "false", "true"}),
"pg_hint_plan.parse_messages": inEnum([]string{"debug5", "debug4", "debug3", "debug2", "debug1", "debug", "info", "notice", "warning", "error", "log"}),
"pg_hint_plan.message_level": inEnum([]string{"debug5", "debug4", "debug3", "debug2", "debug1", "debug", "info", "notice", "warning", "error", "log"}),
"pg_hint_plan.enable_hint_table": toBool,
"pglogical.batch_inserts": toBool,
"pglogical.conflict_log_level": notEmpty,
"pglogical.conflict_resolution": inEnum([]string{"error", "apply_remote", "keep_local", "last_update_wins", "first_update_wins"}),
"pglogical.extra_connection_options": notEmpty,
"pglogical.synchronous_commit": toBool,
"pglogical.pglogical.use_spi": toBool,
"pg_stat_statements.max": intWithinRange(100, maxInt32),
"pg_stat_statements.save": toBool,
"pg_stat_statements.track": inEnum([]string{"none", "top", "all"}),
"pg_stat_statements.track_utility": toBool,
"pgaudit.log": inEnum([]string{"read", "write", "function", "role", "ddl", "misc", "misc_set", "all", "none"}),
"pgaudit.log_catalog": toBool,
"pgaudit.log_level": inEnum([]string{"debug5", "debug4", "debug3", "debug2", "debug1", "info", "notice", "warning", "error", "log"}),
"pgaudit.log_parameter": toBool,
"pgaudit.pgaudit.log_relation": toBool,
"pgaudit.log_statement_once": toBool,
"pgaudit.role": notEmpty,
"random_page_cost": floatWithinRange(0.0, maxFloat32),
"session_replication_role": inEnum([]string{"origin", "replica", "local"}),
"replacement_sort_tuples": intWithinRange(0, maxInt32),
"shared_buffers": unit(eightk),
"ssl_max_protocol_version": inEnum([]string{"TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3"}),
"ssl_min_protocol_version": inEnum([]string{"TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3"}),
"standard_conforming_strings": toBool,
"synchronize_seqscans": toBool,
"tcp_keepalives_count": intWithinRange(0, maxInt32),
"tcp_keepalives_idle": intWithinRange(0, maxInt32),
"tcp_keepalives_interval": intWithinRange(0, maxInt32),
"temp_buffers": unit(eightk),
"temp_file_limit": intWithinRange(1048576, maxInt32),
"trace_notify": toBool,
"trace_recovery_messages": inEnum([]string{"debug5", "debug4", "debug3", "debug2", "debug1", "log", "notice", "warning", "error"}),
"trace_sort": toBool,
"track_activities": toBool,
"track_activity_query_size": intWithinRange(100, 102400),
"track_commit_timestamp": toBool,
"track_counts": toBool,
"track_functions": inEnum([]string{"none", "pl", "all"}),
"track_io_timing": toBool,
"vacuum_cost_delay": intWithinRange(0, 100),
"vacuum_cost_limit": intWithinRange(1, 10000),
"vacuum_freeze_min_age": intWithinRange(0, 1000000000),
"vacuum_freeze_table_age": intWithinRange(0, 2000000000),
"vacuum_multixact_freeze_min_age": intWithinRange(0, 1000000000),
"vacuum_multixact_freeze_table_age": intWithinRange(0, 2000000000),
"wal_buffers": unit(eightk),
"wal_compression": toBool,
"wal_receiver_timeout": intWithinRange(0, maxInt32),
"wal_sender_timeout": intWithinRange(0, maxInt32),
"work_mem": intWithinRange(64, maxInt32),
}
func intWithinRange(min int, max int) func(n string) error {
return func(n string) error {
i, err := toInt(n)
if err != nil {
return err
}
if i < min || i > max {
return fmt.Errorf("NAISERATOR-6177: %d is not between %d and %d", i, min, max)
}
return nil
}
}
func floatWithinRange(min float64, max float64) func(n string) error {
return func(n string) error {
f, err := toFloat(n)
if err != nil {
return err
}
if f < min || f > max {
return fmt.Errorf("NAISERATOR-9076: %f is not between %f and %f", f, min, max)
}
return nil
}
}
func inEnum(allowedVals []string) func(val string) error {
return func(commaSeparatedSuppliedVals string) error {
parts := strings.Split(commaSeparatedSuppliedVals, ",")
for _, v := range parts {
if !slices.Contains(allowedVals, v) {
return fmt.Errorf("NAISERATOR-1428: %s is not in %v", commaSeparatedSuppliedVals, allowedVals)
}
}
return nil
}
}
func unit(unitSize int) func(n string) error {
return func(n string) error {
i, err := toInt(n)
if err != nil {
return err
}
if i%unitSize != 0 {
return fmt.Errorf("NAISERATOR-5189: %d is not a unit of %d", i, unitSize)
}
return nil
}
}
func notEmpty(str string) error {
if str == "" {
return errors.New("value cannot be empty")
}
return nil
}
func toBool(str string) error {
if str == "on" || str == "off" {
return nil
}
return fmt.Errorf("NAISERATOR-6766: expected 'on|off' int, got '%s'", str)
}
func toInt(str string) (int, error) {
i, err := strconv.Atoi(str)
if err != nil {
return 0, fmt.Errorf("NAISERATOR-7760: expected an int, got '%s'", str)
}
return i, nil
}
func toFloat(str string) (float64, error) {
f, err := strconv.ParseFloat(str, 64)
if err != nil {
return 0, fmt.Errorf("NAISERATOR-0265: expected a float, got '%s'", str)
}
return f, nil
}