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upgrade.go
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upgrade.go
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// Copyright 2016 The etcd-operator Authors
//
// 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 cluster
import (
"fmt"
"github.com/alex-laptiev-sp/etcd-operator/pkg/util/k8sutil"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
)
func (c *Cluster) upgradeOneMember(memberName string) error {
c.status.SetUpgradingCondition(c.cluster.Spec.Version)
ns := c.cluster.Namespace
pod, err := c.config.KubeCli.CoreV1().Pods(ns).Get(memberName, metav1.GetOptions{})
if err != nil {
return fmt.Errorf("fail to get pod (%s): %v", memberName, err)
}
oldpod := pod.DeepCopy()
c.logger.Infof("upgrading the etcd member %v from %s to %s", memberName, k8sutil.GetEtcdVersion(pod), c.cluster.Spec.Version)
pod.Spec.Containers[0].Image = k8sutil.ImageName(c.cluster.Spec.Repository, c.cluster.Spec.Version)
k8sutil.SetEtcdVersion(pod, c.cluster.Spec.Version)
patchdata, err := k8sutil.CreatePatch(oldpod, pod, v1.Pod{})
if err != nil {
return fmt.Errorf("error creating patch: %v", err)
}
_, err = c.config.KubeCli.CoreV1().Pods(ns).Patch(pod.GetName(), types.StrategicMergePatchType, patchdata)
if err != nil {
return fmt.Errorf("fail to update the etcd member (%s): %v", memberName, err)
}
c.logger.Infof("finished upgrading the etcd member %v", memberName)
_, err = c.eventsCli.Create(k8sutil.MemberUpgradedEvent(memberName, k8sutil.GetEtcdVersion(oldpod), c.cluster.Spec.Version, c.cluster))
if err != nil {
c.logger.Errorf("failed to create member upgraded event: %v", err)
}
return nil
}