/
deployment.go
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/
deployment.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* 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
*
* https://opensource.org/licenses/Apache-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 OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package common
import (
"fmt"
"strings"
"time"
"tkestack.io/tke/pkg/platform/controller/addon/gpumanager/images"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
apierror "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/yaml"
"k8s.io/client-go/kubernetes"
"k8s.io/utils/trace"
clientset "tkestack.io/tke/api/client/clientset/versioned"
v1 "tkestack.io/tke/api/platform/v1"
"tkestack.io/tke/pkg/platform/controller/addon/gpumanager/template"
"tkestack.io/tke/pkg/util/log"
)
const (
// DefaultDeploymentName defines the name of GPUManager deployment
DefaultDeploymentName = "gpu-quota-admission"
)
// DeploymentOperator is used to operate remote GPUManager deployment
type DeploymentOperator struct {
TkeCli clientset.Interface
K8sCli kubernetes.Interface
CrDomain string
CrNamespace string
}
// CreateDeploymentPayload returns the deployment which holds GPUManager information
func CreateDeploymentPayload(version string) (ret *appsv1.Deployment, err error) {
reader := strings.NewReader(template.DeploymentTemplate)
// TODO: add OwnerReference for auto cleanup
// We have to set image and a label which indicates the owner of the GPUManager
payload := &appsv1.Deployment{}
err = yaml.NewYAMLOrJSONDecoder(reader, 4096).Decode(payload)
if err != nil {
return nil, err
}
payload.Name = DefaultDeploymentName
payload.Spec.Template.Spec.InitContainers[0].Image = images.Get(version).Busybox.FullName()
payload.Spec.Template.Spec.Containers[0].Image = images.Get(version).GPUQuotaAdmission.FullName()
payload.Spec.Template.Spec.ServiceAccountName = DefaultServiceAccountName
payload.Spec.Template.Spec.Tolerations[0].Key = LabelNodeRoleMaster
payload.Spec.Template.Spec.Tolerations[0].Effect = corev1.TaintEffectNoSchedule
return payload, nil
}
// CreateDeployment implements DeploymentOperator
func (c *DeploymentOperator) CreateDeployment(obj *v1.GPUManager) error {
t := trace.New(fmt.Sprintf("CreateDeployment-%s", obj.Spec.ClusterName))
defer t.LogIfLong(time.Second)
log.Info(fmt.Sprintf("Start to create deployment for %s", obj.Spec.ClusterName))
t.Step("create deployment to remote")
payload, err := CreateDeploymentPayload(obj.Spec.Version)
if err != nil {
return err
}
_, err = c.K8sCli.AppsV1().Deployments(metav1.NamespaceSystem).Create(payload)
if err != nil && !apierror.IsAlreadyExists(err) {
log.Error(fmt.Sprintf("create deployment for %s, got %s", obj.Spec.ClusterName, err))
}
return err
}
// DeleteDeployment implements DeploymentOperator
func (c *DeploymentOperator) DeleteDeployment(obj *v1.GPUManager) error {
t := trace.New(fmt.Sprintf("DeleteDeployment-%s", obj.Spec.ClusterName))
defer t.LogIfLong(time.Second)
log.Info(fmt.Sprintf("Start to delete deployment for %s", obj.Spec.ClusterName))
t.Step("delete deployment from remote")
err := c.K8sCli.AppsV1().Deployments(metav1.NamespaceSystem).Delete(DefaultDeploymentName, metav1.NewDeleteOptions(0))
if err != nil && !apierror.IsNotFound(err) {
log.Error(fmt.Sprintf("delete deployment for %s, got %s", obj.Spec.ClusterName, err))
return err
}
return nil
}
// GetDeployment implements DeploymentOperator
func (c *DeploymentOperator) GetDeployment(obj *v1.GPUManager) (ds *appsv1.Deployment, opErr error) {
t := trace.New(fmt.Sprintf("GetDeployment-%s", obj.Spec.ClusterName))
defer t.LogIfLong(time.Second)
log.Info(fmt.Sprintf("Start to get deployment for %s", obj.Spec.ClusterName))
t.Step("get deployment from remote")
ds, opErr = c.K8sCli.AppsV1().Deployments(metav1.NamespaceSystem).Get(DefaultDeploymentName, metav1.GetOptions{})
if opErr != nil {
log.Error(fmt.Sprintf("get deployment for %s, got %s", obj.Spec.ClusterName, opErr))
}
return
}
// UpdateDeployment implements DeploymentOperator
func (c *DeploymentOperator) UpdateDeployment(obj *v1.GPUManager) error {
t := trace.New(fmt.Sprintf("UpdateDeployment-%s", obj.Spec.ClusterName))
defer t.LogIfLong(time.Second)
log.Info(fmt.Sprintf("Start to update quota admission for %s", obj.Spec.ClusterName))
t.Step("patch admission image version to remote")
patch := fmt.Sprintf(template.ImagePatchTemplate, images.Get(obj.Spec.Version).GPUQuotaAdmission.FullName())
patched, err := c.K8sCli.AppsV1().Deployments(metav1.NamespaceSystem).Patch(DefaultDeploymentName, types.JSONPatchType, []byte(patch))
if err != nil {
log.Error(fmt.Sprintf("patch image version for %s, got %s", obj.Spec.ClusterName, err))
return err
}
log.Info(fmt.Sprintf("GPUManager %s patched version: %s", obj.Spec.ClusterName, patched))
return nil
}
// DiffDeployment implements DeploymentOperator
func (c *DeploymentOperator) DiffDeployment(obj *v1.GPUManager) (needUpgrade bool, err error) {
t := trace.New(fmt.Sprintf("DiffDeployment-%s", obj.Spec.ClusterName))
defer t.LogIfLong(time.Second)
log.Info(fmt.Sprintf("Diff GPUManager for %s", obj.Spec.ClusterName))
t.Step("get deployment from remote")
oldDs, err := c.GetDeployment(obj)
if err != nil {
log.Error(fmt.Sprintf("diff deployment for %s, got %s", obj.Spec.ClusterName, err))
return false, err
}
oldImage := oldDs.Spec.Template.Spec.Containers[0].Image
newImage := images.Get(obj.Spec.Version).GPUQuotaAdmission.FullName()
log.Info(fmt.Sprintf("GPUManager %s oldImage:%s, newImage: %s", obj.Spec.ClusterName, oldImage, newImage))
return oldImage != newImage, nil
}