poolprovider-for-k8s/kubernetes.go

127 строки
3.0 KiB
Go

package main
import (
"io/ioutil"
"github.com/ghodss/yaml"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/api/core/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
)
func CreatePod(podname, agentId string) PodResponse {
cs, err := getInClusterClientSet()
var response PodResponse
if err != nil {
response.Status = "failure"
response.Message = err.Error()
return response
}
var podYaml = getAgentSpecification(podname)
var p1 v1.Pod
err1 := yaml.Unmarshal([]byte(podYaml), &p1)
if err1 != nil {
response.Status = "failure"
response.Message = "unmarshal error: " + err1.Error()
return response
}
// Set the agentId as label if specified
if(agentId != "") {
p1.Labels["AgentId"] = agentId
}
podClient := cs.CoreV1().Pods("azuredevops")
pod, err2 := podClient.Create(&p1)
if err2 != nil {
response.Status = "failure"
response.Message = "podclient create error: " + err2.Error()
return response
}
response.Status = "success"
response.Message = "Pod created: " + pod.GetName()
return response
}
func DeletePod(podname string) PodResponse {
cs, err := getInClusterClientSet()
response := PodResponse { "failure", "" }
if err != nil {
response.Message = err.Error()
return response
}
podClient := cs.CoreV1().Pods("azuredevops")
err2 := podClient.Delete(podname, &metav1.DeleteOptions{})
if err2 != nil {
response.Message = "podclient delete error: " + err2.Error()
return response
}
response.Status = "success"
response.Message = "Deleted " + podname
return response
}
func DeletePodWithAgentId(agentId string) PodResponse {
cs, err := getInClusterClientSet()
response := PodResponse { "failure", "" }
if err != nil {
response.Message = err.Error()
return response
}
podClient := cs.CoreV1().Pods("azuredevops")
// Get the pod with this agentId
pods, _ := podClient.List(metav1.ListOptions{LabelSelector: agentId})
if(pods == nil || len(pods.Items) == 0) {
response.Message = "Could not find running pod with AgentId" + agentId
return response
}
err2 := podClient.Delete(pods.Items[0].GetName(), &metav1.DeleteOptions{})
if err2 != nil {
response.Message = "podclient delete error: " + err2.Error()
return response
}
response.Status = "success"
response.Message = "Deleted " + pods.Items[0].GetName()
return response
}
func getInClusterClientSet() (*kubernetes.Clientset, error) {
config, err := rest.InClusterConfig()
if err != nil {
return nil, err
}
clientset, err := kubernetes.NewForConfig(config)
if err != nil {
return nil, err
}
return clientset, nil
}
func getAgentSpecification(podname string) string {
if(podname == "") {
podname = "agent-dind"
}
// If pod is to be created in a different namespace
// then secrets need to be created in the same namespace, i.e. VSTS_TOKEN and VSTS_ACCOUNT
// kubectl create secret generic vsts --from-literal=VSTS_TOKEN=<token> --from-literal=VSTS_ACCOUNT=<accountname>
dat, err := ioutil.ReadFile("agentpods/" + podname + ".yaml")
if err != nil {
return err.Error()
}
var podYaml = string(dat)
return podYaml
}