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upinfo.go
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upinfo.go
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// Copyright 2019. 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 upinfo
import (
"fmt"
"io"
"github.com/pingcap/tidb-operator/pkg/apis/pingcap.com/v1alpha1"
"github.com/pingcap/tidb-operator/pkg/client/clientset/versioned"
"github.com/pingcap/tidb-operator/pkg/controller"
"github.com/pingcap/tidb-operator/pkg/label"
"github.com/pingcap/tidb-operator/pkg/tkctl/config"
"github.com/pingcap/tidb-operator/pkg/tkctl/readable"
tkctlUtil "github.com/pingcap/tidb-operator/pkg/tkctl/util"
"github.com/pingcap/tidb-operator/pkg/util"
"github.com/spf13/cobra"
apps "k8s.io/api/apps/v1beta1"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/cli-runtime/pkg/genericclioptions"
"k8s.io/client-go/kubernetes"
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
)
const (
upinfoLongDesc = `
Get tidb cluster component upgrade info.
You can omit --tidbcluster=<name> option by running 'tkc use <clusterName>',
`
upinfoExample = `
# get current tidb cluster info (set by tkc user)
tkctl upinfo
# get specified tidb cluster component upgrade info
tkctl upinfo -t another-cluster
`
infoUsage = `expected 'upinfo -t CLUSTER_NAME' for the upinfo command or
using 'tkctl use' to set tidb cluster first.
`
UPDATED = "updated"
UPDATING = "updating"
WAITING = "waiting"
)
// UpInfoOptions contains the input to the list command.
type UpInfoOptions struct {
TidbClusterName string
Namespace string
TcCli *versioned.Clientset
KubeCli *kubernetes.Clientset
genericclioptions.IOStreams
}
// NewUpInfoOptions returns a UpInfoOptions
func NewUpInfoOptions(streams genericclioptions.IOStreams) *UpInfoOptions {
return &UpInfoOptions{
IOStreams: streams,
}
}
// NewCmdUpInfo creates the upinfo command which show the tidb cluster upgrade detail information
func NewCmdUpInfo(tkcContext *config.TkcContext, streams genericclioptions.IOStreams) *cobra.Command {
o := NewUpInfoOptions(streams)
cmd := &cobra.Command{
Use: "upinfo",
Short: "Show tidb upgrade info.",
Example: upinfoExample,
Long: upinfoLongDesc,
Run: func(cmd *cobra.Command, args []string) {
cmdutil.CheckErr(o.Complete(tkcContext, cmd, args))
cmdutil.CheckErr(o.Run())
},
SuggestFor: []string{"updateinfo", "upgradeinfo"},
}
return cmd
}
func (o *UpInfoOptions) Complete(tkcContext *config.TkcContext, cmd *cobra.Command, args []string) error {
clientConfig, err := tkcContext.ToTkcClientConfig()
if err != nil {
return err
}
if tidbClusterName, ok := clientConfig.TidbClusterName(); ok {
o.TidbClusterName = tidbClusterName
} else {
return cmdutil.UsageErrorf(cmd, infoUsage)
}
namespace, _, err := clientConfig.Namespace()
if err != nil {
return err
}
o.Namespace = namespace
restConfig, err := clientConfig.RestConfig()
if err != nil {
return err
}
tcCli, err := versioned.NewForConfig(restConfig)
if err != nil {
return err
}
o.TcCli = tcCli
kubeCli, err := kubernetes.NewForConfig(restConfig)
if err != nil {
return err
}
o.KubeCli = kubeCli
return nil
}
func (o *UpInfoOptions) Run() error {
tc, err := o.TcCli.PingcapV1alpha1().
TidbClusters(o.Namespace).
Get(o.TidbClusterName, metav1.GetOptions{})
if err != nil {
return err
}
setName := controller.TiDBMemberName(tc.Name)
set, err := o.KubeCli.AppsV1beta1().StatefulSets(o.Namespace).Get(setName, metav1.GetOptions{})
if err != nil {
return err
}
podList, err := o.KubeCli.CoreV1().Pods(o.Namespace).List(metav1.ListOptions{
LabelSelector: label.New().Instance(tc.Name).TiDB().String(),
})
if err != nil {
return err
}
svcName := tkctlUtil.GetTidbServiceName(tc.Name)
svc, err := o.KubeCli.CoreV1().Services(o.Namespace).Get(svcName, metav1.GetOptions{})
if err != nil {
return err
}
msg, err := renderTCUpgradeInfo(tc, set, podList, svc)
if err != nil {
return err
}
fmt.Fprint(o.Out, msg)
return nil
}
func getState(updateReplicas int32, ordinal int32, tc *v1alpha1.TidbCluster, pod *v1.Pod) string {
var state string
if updateReplicas < ordinal {
state = UPDATED
} else if updateReplicas == ordinal {
state = UPDATING
if pod.Labels[apps.ControllerRevisionHashLabelKey] == tc.Status.TiDB.StatefulSet.UpdateRevision {
if member, exist := tc.Status.TiDB.Members[pod.Name]; exist && member.Health {
state = UPDATED
}
}
} else {
state = WAITING
}
return state
}
func getTiDBServerPort(svc *v1.Service) string {
for _, port := range svc.Spec.Ports {
if port.Name == "mysql-client" {
if port.NodePort != 0 {
return fmt.Sprintf("%d:%d/%s", port.Port, port.NodePort, port.Protocol)
}
return fmt.Sprintf("%d/%s", port.Port, port.Protocol)
}
}
return "<none>"
}
func renderTCUpgradeInfo(tc *v1alpha1.TidbCluster, set *apps.StatefulSet, podList *v1.PodList, svc *v1.Service) (string, error) {
return readable.TabbedString(func(out io.Writer) error {
w := readable.NewPrefixWriter(out)
dbPhase := tc.Status.TiDB.Phase
w.WriteLine(readable.LEVEL_0, "Name:\t%s", tc.Name)
w.WriteLine(readable.LEVEL_0, "Namespace:\t%s", tc.Namespace)
w.WriteLine(readable.LEVEL_0, "CreationTimestamp:\t%s", tc.CreationTimestamp)
w.WriteLine(readable.LEVEL_0, "Status:\t%s", dbPhase)
if dbPhase == v1alpha1.UpgradePhase {
if len(podList.Items) != 0 {
pod := podList.Items[0]
w.WriteLine(readable.LEVEL_0, "Image:\t%s ---> %s", pod.Spec.Containers[0].Image, tc.Spec.TiDB.Image)
}
}
{
w.WriteLine(readable.LEVEL_1, "Name\tState\tNodeIP\tPodIP\tPort\t")
w.WriteLine(readable.LEVEL_1, "----\t-----\t------\t-----\t----\t")
{
updateReplicas := set.Spec.UpdateStrategy.RollingUpdate.Partition
if len(podList.Items) != 0 {
for _, pod := range podList.Items {
var state string
ordinal, err := util.GetOrdinalFromPodName(pod.Name)
if err != nil {
return err
}
if dbPhase == v1alpha1.UpgradePhase {
state = getState(*updateReplicas, ordinal, tc, &pod)
} else {
state = UPDATED
}
port := getTiDBServerPort(svc)
w.WriteLine(readable.LEVEL_1, "%s\t%s\t%s\t%s\t%s\t", pod.Name, state, pod.Status.HostIP, pod.Status.PodIP, port)
}
} else {
w.WriteLine(readable.LEVEL_1, "no resource found")
}
}
}
return nil
})
}