/
grid.go
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/
grid.go
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// 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
}