mirror of https://github.com/kubernetes/kops.git
122 lines
3.6 KiB
Go
122 lines
3.6 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package awsup
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import (
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"fmt"
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"strings"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/ec2"
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"k8s.io/klog/v2"
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"k8s.io/kops/pkg/apis/kops"
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"k8s.io/kops/protokube/pkg/etcd"
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"k8s.io/kops/upup/pkg/fi"
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)
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// FindClusterStatus discovers the status of the cluster, by looking for the tagged etcd volumes
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func (c *awsCloudImplementation) FindClusterStatus(cluster *kops.Cluster) (*kops.ClusterStatus, error) {
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etcdStatus, err := findEtcdStatus(c, cluster)
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if err != nil {
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return nil, err
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}
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status := &kops.ClusterStatus{
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EtcdClusters: etcdStatus,
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}
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klog.V(2).Infof("Cluster status (from cloud): %v", fi.DebugAsJsonString(status))
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return status, nil
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}
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// FindEtcdStatus discovers the status of the cluster, by looking for the tagged etcd volumes
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func (c *MockAWSCloud) FindClusterStatus(cluster *kops.Cluster) (*kops.ClusterStatus, error) {
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etcdStatus, err := findEtcdStatus(c, cluster)
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if err != nil {
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return nil, err
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}
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return &kops.ClusterStatus{
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EtcdClusters: etcdStatus,
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}, nil
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}
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// findEtcdStatus discovers the status of etcd, by looking for the tagged etcd volumes
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func findEtcdStatus(c AWSCloud, cluster *kops.Cluster) ([]kops.EtcdClusterStatus, error) {
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klog.V(2).Infof("Querying AWS for etcd volumes")
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statusMap := make(map[string]*kops.EtcdClusterStatus)
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tags := c.Tags()
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request := &ec2.DescribeVolumesInput{}
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for k, v := range tags {
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request.Filters = append(request.Filters, NewEC2Filter("tag:"+k, v))
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}
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var volumes []*ec2.Volume
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klog.V(2).Infof("Listing EC2 Volumes")
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err := c.EC2().DescribeVolumesPages(request, func(p *ec2.DescribeVolumesOutput, lastPage bool) bool {
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volumes = append(volumes, p.Volumes...)
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return true
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})
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if err != nil {
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return nil, fmt.Errorf("error describing volumes: %v", err)
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}
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for _, volume := range volumes {
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volumeID := aws.StringValue(volume.VolumeId)
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etcdClusterName := ""
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var etcdClusterSpec *etcd.EtcdClusterSpec
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master := false
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for _, tag := range volume.Tags {
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k := aws.StringValue(tag.Key)
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v := aws.StringValue(tag.Value)
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if strings.HasPrefix(k, TagNameEtcdClusterPrefix) {
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etcdClusterName = strings.TrimPrefix(k, TagNameEtcdClusterPrefix)
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etcdClusterSpec, err = etcd.ParseEtcdClusterSpec(etcdClusterName, v)
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if err != nil {
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return nil, fmt.Errorf("error parsing etcd cluster tag %q on volume %q: %v", v, volumeID, err)
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}
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} else if k == TagNameRolePrefix+TagRoleMaster || k == TagNameRolePrefix+TagRoleControlPlane {
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master = true
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}
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}
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if etcdClusterName == "" || etcdClusterSpec == nil || !master {
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continue
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}
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status := statusMap[etcdClusterName]
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if status == nil {
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status = &kops.EtcdClusterStatus{
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Name: etcdClusterName,
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}
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statusMap[etcdClusterName] = status
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}
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memberName := etcdClusterSpec.NodeName
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status.Members = append(status.Members, &kops.EtcdMemberStatus{
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Name: memberName,
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VolumeID: aws.StringValue(volume.VolumeId),
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})
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}
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var status []kops.EtcdClusterStatus
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for _, v := range statusMap {
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status = append(status, *v)
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}
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return status, nil
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}
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