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statefulset.go
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/
statefulset.go
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/*
Copyright @ 2021 fushaosong <fushaosong@beyondlet.com>.
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 e2e
import (
"github.com/bocloud/carina/utils/log"
"encoding/json"
"fmt"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
corev1 "k8s.io/api/core/v1"
"strconv"
"strings"
"time"
)
var statefulset1 = `
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: carina-stateful
namespace: carina
spec:
serviceName: "mysql-service"
replicas: 2
selector:
matchLabels:
app: mysql
template:
metadata:
labels:
app: mysql
spec:
terminationGracePeriodSeconds: 10
containers:
- name: mysqlpod
image: mysql:5.7
env:
- name: MYSQL_ROOT_PASSWORD
value: "123456"
ports:
- containerPort: 80
name: my-port
volumeMounts:
- name: db
mountPath: /var/lib/mysql
volumeClaimTemplates:
- metadata:
name: db
spec:
accessModes: [ "ReadWriteOnce" ]
storageClassName: csi-carina-sc1
resources:
requests:
storage: 3Gi
`
func statefulSetCreate() {
label := "app=mysql"
It("statefulSet pod auto mount", func() {
log.Info("Waiting for pod running")
stdout, stderr, err := kubectlWithInput([]byte(statefulset1), "apply", "-f", "-")
Expect(err).ShouldNot(HaveOccurred(), "stdout=%s, stderr=%s", stdout, stderr)
Eventually(func() error {
stdout, stderr, err = kubectl("get", "pods", "-l", label, "-o", "json", "-n", NameSpace)
if err != nil {
log.Infof("get pod label %s, error %v", label, err)
return err
}
var pods corev1.PodList
err = json.Unmarshal(stdout, &pods)
if err != nil {
return fmt.Errorf("unmarshal error: stdout=%s", stdout)
}
if len(pods.Items) == 0 {
log.Info("pods not create")
return fmt.Errorf("pods not create")
}
for _, pod := range pods.Items {
if pod.Name == "" {
log.Infof("not found pod label %s", label)
return fmt.Errorf("not found pod label %s", label)
}
By("pod scheduler validate")
Expect(pod.Spec.SchedulerName).Should(Equal("carina-scheduler"))
if pod.Status.Phase != corev1.PodRunning {
log.Infof("pod %s status %s", pod.Name, pod.Status.Phase)
return fmt.Errorf("pod %s not running", pod.Name)
}
log.Infof("pod %s is running", pod.Name)
By("exec pod ...")
stdout, stderr, err = kubectl("exec", "-n", NameSpace, pod.Name, "--", "df", "-h", "-T", "/var/lib/mysql")
if err != nil {
log.Infof("failed to df. stdout: %s, stderr: %s, err: %v", stdout, stderr, err)
return fmt.Errorf("failed to df. stdout: %s, stderr: %s, err: %v", stdout, stderr, err)
}
By("check mount device capacity")
mountFileInfo := string(stdout)
log.Info(mountFileInfo)
Expect(mountFileInfo).To(ContainSubstring("xfs"))
mountFileList := strings.Split(mountFileInfo, " ")
fileCapacity := 0
for _, m := range mountFileList {
if strings.HasSuffix(m, "G") {
m1 := strings.Replace(m, "G", "", 1)
fileCapacity, _ = strconv.Atoi(strings.Split(m1, ".")[0])
break
}
}
log.Infof("xfs file capacity %d", fileCapacity)
Expect(3 - fileCapacity).Should(BeNumerically("<=", 1))
}
return nil
}, 5*time.Minute, 10*time.Second).Should(Succeed())
})
}
func deleteStatefulSet() {
It("delete StatefulSet", func() {
statefulSet := "carina-stateful"
stdout, stderr, err := kubectl("delete", "StatefulSet", statefulSet, "-n", NameSpace)
Expect(err).ShouldNot(HaveOccurred(), "stdout=%s, stderr=%s", stdout, stderr)
By("Waiting for pod delete")
Eventually(func() error {
stdout, stderr, err = kubectl("get", "StatefulSet", statefulSet, "-n", NameSpace)
if err != nil {
log.Infof("delete StatefulSet %s success %v", statefulSet, err)
return err
}
return nil
}).Should(HaveOccurred())
})
}