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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// Author: arnej
// utilities to get and manipulate node states in a storage cluster
package clusterstate
import (
"encoding/json"
"sort"
"strings"
"github.com/vespa-engine/vespa/client/go/internal/admin/trace"
)
type VespaModelConfig struct {
VespaVersion string `json:"vespaVersion"`
Hosts []struct {
Name string `json:"name"`
Services []struct {
Name string `json:"name"`
Type string `json:"type"`
Configid string `json:"configid"`
Clustertype string `json:"clustertype"`
Clustername string `json:"clustername"`
Index int `json:"index"`
Ports []struct {
Number int `json:"number"`
Tags string `json:"tags"`
} `json:"ports"`
} `json:"services"`
} `json:"hosts"`
}
func (m *VespaModelConfig) String() string {
if m == nil {
return "nil"
}
var buf strings.Builder
buf.WriteString("vespa version: ")
buf.WriteString(m.VespaVersion)
for _, h := range m.Hosts {
buf.WriteString("\n host: ")
buf.WriteString(h.Name)
for _, s := range h.Services {
buf.WriteString("\n service: ")
buf.WriteString(s.Name)
buf.WriteString(" type: ")
buf.WriteString(s.Type)
buf.WriteString(" cluster: ")
buf.WriteString(s.Clustername)
}
buf.WriteString("\n")
}
buf.WriteString("\n")
return buf.String()
}
type ClusterControllerSpec struct {
host string
port int
}
func parseModelConfig(input string) *VespaModelConfig {
codec := json.NewDecoder(strings.NewReader(input))
var parsedJson VespaModelConfig
err := codec.Decode(&parsedJson)
if err != nil {
trace.Trace("could not decode JSON >>>", input, "<<< error:", err)
return nil
}
return &parsedJson
}
func (m *VespaModelConfig) findClusterControllers() []ClusterControllerSpec {
res := make([]ClusterControllerSpec, 0, 1)
for _, h := range m.Hosts {
for _, s := range h.Services {
if s.Type == "container-clustercontroller" {
for _, p := range s.Ports {
if strings.Contains(p.Tags, "state") {
res = append(res, ClusterControllerSpec{
host: h.Name, port: p.Number,
})
}
}
}
}
}
return res
}
func (m *VespaModelConfig) findSelectedServices(opts *Options) []serviceSpec {
res := make([]serviceSpec, 0, 5)
for _, h := range m.Hosts {
for _, s := range h.Services {
spec := serviceSpec{
cluster: s.Clustername,
serviceType: s.Type,
index: s.Index,
host: h.Name,
}
if s.Type == "storagenode" {
// simplify:
spec.serviceType = "storage"
}
if opts.wantService(spec) {
res = append(res, spec)
}
}
}
sort.Slice(res, func(i, j int) bool {
a := res[i]
b := res[j]
if a.cluster != b.cluster {
return a.cluster < b.cluster
}
if a.serviceType != b.serviceType {
return a.serviceType < b.serviceType
}
if a.index != b.index {
return a.index < b.index
}
return a.host < b.host
})
return res
}
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