This repository has been archived by the owner on Apr 7, 2020. It is now read-only.
forked from istio/istio
-
Notifications
You must be signed in to change notification settings - Fork 152
/
cluster.go
58 lines (53 loc) · 1.89 KB
/
cluster.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
// Copyright 2018 Istio 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 configdump
import (
"fmt"
"sort"
adminapi "github.com/envoyproxy/go-control-plane/envoy/admin/v2alpha"
proto "github.com/gogo/protobuf/types"
)
// GetDynamicClusterDump retrieves a cluster dump with just dynamic active clusters in it
func (w *Wrapper) GetDynamicClusterDump(stripVersions bool) (*adminapi.ClustersConfigDump, error) {
clusterDump, err := w.GetClusterConfigDump()
if err != nil {
return nil, err
}
dac := clusterDump.GetDynamicActiveClusters()
sort.Slice(dac, func(i, j int) bool {
return dac[i].Cluster.Name < dac[j].Cluster.Name
})
if stripVersions {
for i := range dac {
dac[i].VersionInfo = ""
dac[i].LastUpdated = nil
}
}
return &adminapi.ClustersConfigDump{DynamicActiveClusters: dac}, nil
}
// GetClusterConfigDump retrieves the cluster config dump from the ConfigDump
func (w *Wrapper) GetClusterConfigDump() (*adminapi.ClustersConfigDump, error) {
// The cluster dump is the second one in the list.
// See https://www.envoyproxy.io/docs/envoy/latest/api-v2/admin/v2alpha/config_dump.proto
if len(w.Configs) < 2 {
return nil, fmt.Errorf("config dump has no cluster dump")
}
clusterDumpAny := w.Configs[1]
clusterDump := &adminapi.ClustersConfigDump{}
err := proto.UnmarshalAny(&clusterDumpAny, clusterDump)
if err != nil {
return nil, err
}
return clusterDump, nil
}