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mirror of https://github.com/minio/minio.git synced 2025-02-13 06:38:09 -05:00
minio/cmd/grid.go
Harshavardhana dc45a5010d
bring back minor DNS cache for k8s setups ()
k8s as it stands is flaky in DNS lookups,
bring this change back such that we can
cache DNS atleast for 30secs TTL.
2024-03-26 08:00:38 -07:00

62 lines
2.0 KiB
Go

// Copyright (c) 2015-2023 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"context"
"crypto/tls"
"sync/atomic"
"github.com/minio/minio/internal/fips"
"github.com/minio/minio/internal/grid"
xhttp "github.com/minio/minio/internal/http"
"github.com/minio/minio/internal/rest"
)
// globalGrid is the global grid manager.
var globalGrid atomic.Pointer[grid.Manager]
// globalGridStart is a channel that will block startup of grid connections until closed.
var globalGridStart = make(chan struct{})
func initGlobalGrid(ctx context.Context, eps EndpointServerPools) error {
hosts, local := eps.GridHosts()
g, err := grid.NewManager(ctx, grid.ManagerOptions{
Dialer: grid.ContextDialer(xhttp.DialContextWithLookupHost(globalDNSCache.LookupHost, xhttp.NewInternodeDialContext(rest.DefaultTimeout, globalTCPOptions))),
Local: local,
Hosts: hosts,
AddAuth: newCachedAuthToken(),
AuthRequest: storageServerRequestValidate,
BlockConnect: globalGridStart,
TLSConfig: &tls.Config{
RootCAs: globalRootCAs,
CipherSuites: fips.TLSCiphers(),
CurvePreferences: fips.TLSCurveIDs(),
},
// Record incoming and outgoing bytes.
Incoming: globalConnStats.incInternodeInputBytes,
Outgoing: globalConnStats.incInternodeOutputBytes,
TraceTo: globalTrace,
})
if err != nil {
return err
}
globalGrid.Store(g)
return nil
}