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enable_cloud_provider.go
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enable_cloud_provider.go
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// Copyright 2021 Flant JSC
//
// 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 hooks
import (
"fmt"
"github.com/flant/addon-operator/pkg/module_manager/go_hook"
"github.com/flant/addon-operator/sdk"
"github.com/flant/shell-operator/pkg/kube_events_manager/types"
v1core "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"sigs.k8s.io/yaml"
)
var (
cloudProviderNameToModule = map[string]string{
"OpenStack": "cloudProviderOpenstack",
"AWS": "cloudProviderAws",
"GCP": "cloudProviderGcp",
"Yandex": "cloudProviderYandex",
"vSphere": "cloudProviderVsphere",
"Azure": "cloudProviderAzure",
"VCD": "cloudProviderVcd",
"Zvirt": "cloudProviderZvirt",
}
)
var _ = sdk.RegisterFunc(&go_hook.HookConfig{
Kubernetes: []go_hook.KubernetesConfig{
{
Name: "cloud_config",
ApiVersion: "v1",
Kind: "Secret",
NameSelector: &types.NameSelector{
MatchNames: []string{"d8-cluster-configuration"},
},
NamespaceSelector: &types.NamespaceSelector{
NameSelector: &types.NameSelector{
MatchNames: []string{"kube-system"},
},
},
FilterFunc: applyClusterConfigForProviderFilter,
},
},
}, enableCloudProvider)
func applyClusterConfigForProviderFilter(obj *unstructured.Unstructured) (go_hook.FilterResult, error) {
var cm v1core.Secret
err := sdk.FromUnstructured(obj, &cm)
if err != nil {
return "", err
}
clusterConf, ok := cm.Data["cluster-configuration.yaml"]
if !ok {
return "", nil
}
var parsedClusterConfig map[string]interface{}
if err := yaml.Unmarshal(clusterConf, &parsedClusterConfig); err != nil {
return nil, fmt.Errorf("cannot parse cluster configuration: %v", err)
}
if cloudConfig, ok := parsedClusterConfig["cloud"]; ok {
provider, ok := cloudConfig.(map[string]interface{})["provider"]
if ok {
return provider.(string), nil
}
}
return "", nil
}
func enableCloudProvider(input *go_hook.HookInput) error {
cloudConfigSnap := input.Snapshots["cloud_config"]
providerNameToEnable := ""
if len(cloudConfigSnap) > 0 {
providerNameToEnable = cloudConfigSnap[0].(string)
} else {
for providerName, module := range cloudProviderNameToModule {
if input.ConfigValues.Exists(module) {
providerNameToEnable = providerName
break
}
}
}
for providerName, module := range cloudProviderNameToModule {
moduleEnable := fmt.Sprintf("%sEnabled", module)
if providerName == providerNameToEnable {
input.Values.Set(moduleEnable, true)
} else {
input.Values.Remove(moduleEnable)
}
}
return nil
}