6207e2c24d
Change ClusterMap API object to support multiple kubeconfig sources for a cluster. If one kubeconfig source fails, kubeconfig builder will not fail and move on to the next one. This behaviour will allow to support cases when ephemeral cluster is not accesible anymore or when target cluster is not yet accessible. For more information please read issue #460 in airshipctl github Relates-To: #460 Related-To: #460 Change-Id: I7cd32f78cd7c4ad8814eac357424c24216f40d76
85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
/*
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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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https://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 clustermap
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import (
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"opendev.org/airship/airshipctl/pkg/api/v1alpha1"
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)
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// DefaultClusterAPIObjNamespace is a default namespace used for cluster-api cluster object
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const DefaultClusterAPIObjNamespace = "default"
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// ClusterMap interface that allows to list all clusters, find its parent, namespace,
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// check if dynamic kubeconfig is enabled.
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// TODO use typed cluster names
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type ClusterMap interface {
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ParentCluster(string) (string, error)
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AllClusters() []string
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ClusterKubeconfigContext(string) (string, error)
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Sources(string) ([]v1alpha1.KubeconfigSource, error)
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}
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// clusterMap allows to view clusters and relationship between them
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type clusterMap struct {
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apiMap *v1alpha1.ClusterMap
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}
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var _ ClusterMap = clusterMap{}
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// NewClusterMap returns ClusterMap interface
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func NewClusterMap(cMap *v1alpha1.ClusterMap) ClusterMap {
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return clusterMap{apiMap: cMap}
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}
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// ParentCluster finds a parent cluster for provided child
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func (cm clusterMap) ParentCluster(child string) (string, error) {
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currentCluster, exists := cm.apiMap.Map[child]
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if !exists {
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return "", ErrClusterNotInMap{Child: child, Map: cm.apiMap}
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}
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if currentCluster.Parent == "" {
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return "", ErrParentNotFound{Child: child, Map: cm.apiMap}
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}
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return currentCluster.Parent, nil
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}
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// AllClusters returns all clusters in a map
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func (cm clusterMap) AllClusters() []string {
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clusters := []string{}
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for k := range cm.apiMap.Map {
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clusters = append(clusters, k)
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}
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return clusters
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}
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// ClusterKubeconfigContext returns name of the context in kubeconfig corresponding to a given cluster
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func (cm clusterMap) ClusterKubeconfigContext(clusterName string) (string, error) {
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_, exists := cm.apiMap.Map[clusterName]
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if !exists {
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return "", ErrClusterNotInMap{Map: cm.apiMap, Child: clusterName}
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}
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return clusterName, nil
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}
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func (cm clusterMap) Sources(clusterName string) ([]v1alpha1.KubeconfigSource, error) {
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cluster, ok := cm.apiMap.Map[clusterName]
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if !ok {
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return nil, ErrClusterNotInMap{Child: clusterName, Map: cm.apiMap}
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}
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return cluster.Sources, nil
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}
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