108 lines
2.4 KiB
Go
108 lines
2.4 KiB
Go
/*
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Copyright 2020 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 cloudstack
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import (
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"fmt"
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"os"
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"gopkg.in/gcfg.v1"
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"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/cloudstack/service"
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klog "k8s.io/klog/v2"
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)
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type managerConfig struct {
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asg *asg
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acsConfig *service.Config
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service service.CKSService
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file string
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}
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type option func(*managerConfig)
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func withConfigFile(file string) option {
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return func(config *managerConfig) {
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config.file = file
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}
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}
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func withASG(asg *asg) option {
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return func(config *managerConfig) {
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config.asg = asg
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}
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}
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func withCKSService(service service.CKSService) option {
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return func(config *managerConfig) {
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config.service = service
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}
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}
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func readConfig(file string) (*CSConfig, error) {
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cfg := &CSConfig{}
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fp, err := os.Open(file)
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if err != nil || fp == nil {
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klog.Fatalf("Unable to open cloud provider configuration (cloud-config) %s : %v", file, err)
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}
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defer func() {
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err = fp.Close()
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if err != nil {
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klog.Warningf("Unable to close config : %v", err)
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}
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}()
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if err := gcfg.ReadInto(cfg, fp); err != nil {
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return nil, fmt.Errorf("Unable to parse cloud provider config : %v", err)
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}
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if cfg.Global.APIURL == "" || cfg.Global.APIKey == "" || cfg.Global.SecretKey == "" {
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return nil, fmt.Errorf("Missing api-url, api-key or secret-key in the cloud-config")
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}
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return cfg, nil
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}
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func createConfig(opts ...option) (*managerConfig, error) {
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cfg := &managerConfig{}
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for _, fn := range opts {
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fn(cfg)
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}
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if cfg.asg == nil {
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cfg.asg = &asg{}
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}
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if cfg.file != "" {
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config, err := readConfig(cfg.file)
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if err != nil {
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return nil, err
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}
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cfg.acsConfig = &service.Config{
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APIKey: config.Global.APIKey,
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SecretKey: config.Global.SecretKey,
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Endpoint: config.Global.APIURL,
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}
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}
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if cfg.service == nil {
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cfg.service = service.NewCKSService(cfg.acsConfig)
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}
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return cfg, nil
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}
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