mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-22 16:36:27 +01:00
73 lines
2.6 KiB
Go
73 lines
2.6 KiB
Go
/*
|
|
*
|
|
* Copyright 2018 gRPC authors.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*/
|
|
|
|
// Package envconfig contains grpc settings configured by environment variables.
|
|
package envconfig
|
|
|
|
import (
|
|
"os"
|
|
"strconv"
|
|
"strings"
|
|
)
|
|
|
|
var (
|
|
// TXTErrIgnore is set if TXT errors should be ignored ("GRPC_GO_IGNORE_TXT_ERRORS" is not "false").
|
|
TXTErrIgnore = boolFromEnv("GRPC_GO_IGNORE_TXT_ERRORS", true)
|
|
// AdvertiseCompressors is set if registered compressor should be advertised
|
|
// ("GRPC_GO_ADVERTISE_COMPRESSORS" is not "false").
|
|
AdvertiseCompressors = boolFromEnv("GRPC_GO_ADVERTISE_COMPRESSORS", true)
|
|
// RingHashCap indicates the maximum ring size which defaults to 4096
|
|
// entries but may be overridden by setting the environment variable
|
|
// "GRPC_RING_HASH_CAP". This does not override the default bounds
|
|
// checking which NACKs configs specifying ring sizes > 8*1024*1024 (~8M).
|
|
RingHashCap = uint64FromEnv("GRPC_RING_HASH_CAP", 4096, 1, 8*1024*1024)
|
|
// PickFirstLBConfig is set if we should support configuration of the
|
|
// pick_first LB policy.
|
|
PickFirstLBConfig = boolFromEnv("GRPC_EXPERIMENTAL_PICKFIRST_LB_CONFIG", true)
|
|
// LeastRequestLB is set if we should support the least_request_experimental
|
|
// LB policy, which can be enabled by setting the environment variable
|
|
// "GRPC_EXPERIMENTAL_ENABLE_LEAST_REQUEST" to "true".
|
|
LeastRequestLB = boolFromEnv("GRPC_EXPERIMENTAL_ENABLE_LEAST_REQUEST", false)
|
|
// ALTSMaxConcurrentHandshakes is the maximum number of concurrent ALTS
|
|
// handshakes that can be performed.
|
|
ALTSMaxConcurrentHandshakes = uint64FromEnv("GRPC_ALTS_MAX_CONCURRENT_HANDSHAKES", 100, 1, 100)
|
|
)
|
|
|
|
func boolFromEnv(envVar string, def bool) bool {
|
|
if def {
|
|
// The default is true; return true unless the variable is "false".
|
|
return !strings.EqualFold(os.Getenv(envVar), "false")
|
|
}
|
|
// The default is false; return false unless the variable is "true".
|
|
return strings.EqualFold(os.Getenv(envVar), "true")
|
|
}
|
|
|
|
func uint64FromEnv(envVar string, def, min, max uint64) uint64 {
|
|
v, err := strconv.ParseUint(os.Getenv(envVar), 10, 64)
|
|
if err != nil {
|
|
return def
|
|
}
|
|
if v < min {
|
|
return min
|
|
}
|
|
if v > max {
|
|
return max
|
|
}
|
|
return v
|
|
}
|