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cluster.go
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cluster.go
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// Copyright 2020 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package spec
import (
"fmt"
"path/filepath"
"reflect"
cspec "github.com/pingcap/tiup/pkg/cluster/spec"
)
var specManager *cspec.SpecManager
// Metadata is the specification of generic cluster metadata
type Metadata struct {
User string `yaml:"user"` // the user to run and manage cluster on remote
Version string `yaml:"dm_version"` // the version of TiDB cluster
// EnableFirewall bool `yaml:"firewall"`
Topology *Specification `yaml:"topology"`
}
var _ cspec.UpgradableMetadata = &Metadata{}
// SetVersion implement UpgradableMetadata interface.
func (m *Metadata) SetVersion(s string) {
m.Version = s
}
// SetUser implement UpgradableMetadata interface.
func (m *Metadata) SetUser(s string) {
m.User = s
}
// GetTopology implements Metadata interface.
func (m *Metadata) GetTopology() cspec.Topology {
return m.Topology
}
// SetTopology implements Metadata interface.
func (m *Metadata) SetTopology(topo cspec.Topology) {
dmTopo, ok := topo.(*Specification)
if !ok {
panic(fmt.Sprintln("wrong type: ", reflect.TypeOf(topo)))
}
m.Topology = dmTopo
}
// GetBaseMeta implements Metadata interface.
func (m *Metadata) GetBaseMeta() *cspec.BaseMeta {
return &cspec.BaseMeta{
Version: m.Version,
User: m.User,
}
}
// GetSpecManager return the spec manager of dm cluster.
func GetSpecManager() *cspec.SpecManager {
if specManager == nil {
specManager = cspec.NewSpec(filepath.Join(cspec.ProfileDir(), cspec.TiUPClusterDir), func() cspec.Metadata {
return &Metadata{
Topology: new(Specification),
}
})
}
return specManager
}