forked from gardener/gardener
/
infrastructure.go
143 lines (127 loc) · 5.44 KB
/
infrastructure.go
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// Copyright 2018 The Gardener 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 openstackbotanist
import (
gardenv1beta1 "github.com/gardener/gardener/pkg/apis/garden/v1beta1"
"github.com/gardener/gardener/pkg/operation/common"
"github.com/gardener/gardener/pkg/operation/terraformer"
)
// DeployInfrastructure kicks off a Terraform job which deploys the infrastructure.
func (b *OpenStackBotanist) DeployInfrastructure() error {
var (
routerID = "${openstack_networking_router_v2.router.id}"
createRouter = true
)
// check if we should use an existing Router or create a new one
if b.Shoot.Info.Spec.Cloud.OpenStack.Networks.Router != nil {
routerID = b.Shoot.Info.Spec.Cloud.OpenStack.Networks.Router.ID
createRouter = false
}
return terraformer.
New(b.Operation, common.TerraformerPurposeInfra).
SetVariablesEnvironment(b.generateTerraformInfraVariablesEnvironment()).
DefineConfig("openstack-infra", b.generateTerraformInfraConfig(createRouter, routerID)).
Apply()
}
// DestroyInfrastructure kicks off a Terraform job which destroys the infrastructure.
func (b *OpenStackBotanist) DestroyInfrastructure() error {
return terraformer.
New(b.Operation, common.TerraformerPurposeInfra).
SetVariablesEnvironment(b.generateTerraformInfraVariablesEnvironment()).
Destroy()
}
// generateTerraformInfraVariablesEnvironment generates the environment containing the credentials which
// are required to validate/apply/destroy the Terraform configuration. These environment must contain
// Terraform variables which are prefixed with TF_VAR_.
func (b *OpenStackBotanist) generateTerraformInfraVariablesEnvironment() []map[string]interface{} {
return common.GenerateTerraformVariablesEnvironment(b.Shoot.Secret, map[string]string{
"USER_NAME": UserName,
"PASSWORD": Password,
})
}
// generateTerraformInfraConfig creates the Terraform variables and the Terraform config (for the infrastructure)
// and returns them (these values will be stored as a ConfigMap and a Secret in the Garden cluster.
func (b *OpenStackBotanist) generateTerraformInfraConfig(createRouter bool, routerID string) map[string]interface{} {
var (
sshSecret = b.Secrets["ssh-keypair"]
cloudConfigDownloaderSecret = b.Secrets["cloud-config-downloader"]
workers = distributeWorkersOverZones(b.Shoot.Info.Spec.Cloud.OpenStack.Workers, b.Shoot.Info.Spec.Cloud.OpenStack.Zones)
zones = []map[string]interface{}{}
)
for _, zone := range b.Shoot.Info.Spec.Cloud.OpenStack.Zones {
zones = append(zones, map[string]interface{}{
"name": zone,
})
}
networks := map[string]interface{}{
"worker": b.Shoot.Info.Spec.Cloud.OpenStack.Networks.Workers[0],
}
return map[string]interface{}{
"openstack": map[string]interface{}{
"authURL": b.Shoot.CloudProfile.Spec.OpenStack.KeyStoneURL,
"domainName": string(b.Shoot.Secret.Data[DomainName]),
"tenantName": string(b.Shoot.Secret.Data[TenantName]),
"region": b.Shoot.Info.Spec.Cloud.Region,
"floatingPoolName": b.Shoot.Info.Spec.Cloud.OpenStack.FloatingPoolName,
"loadBalancerProvider": b.Shoot.Info.Spec.Cloud.OpenStack.LoadBalancerProvider,
},
"create": map[string]interface{}{
"router": createRouter,
},
"sshPublicKey": string(sshSecret.Data["id_rsa.pub"]),
"router": map[string]interface{}{
"id": routerID,
},
"clusterName": b.Shoot.SeedNamespace,
"coreOSImage": b.Shoot.CloudProfile.Spec.OpenStack.MachineImage.Name,
"cloudConfig": map[string]interface{}{
"kubeconfig": string(cloudConfigDownloaderSecret.Data["kubeconfig"]),
},
"networks": networks,
"workers": workers,
"zones": zones,
}
}
// DeployBackupInfrastructure kicks off a Terraform job which creates the infrastructure resources for backup.
func (b *OpenStackBotanist) DeployBackupInfrastructure() error {
return nil
}
// DestroyBackupInfrastructure kicks off a Terraform job which destroys the infrastructure for backup.
func (b *OpenStackBotanist) DestroyBackupInfrastructure() error {
return nil
}
// distributeWorkersOverZones distributes the worker groups over the zones equally and returns a map
// which can be injected into a Helm chart.
func distributeWorkersOverZones(workerList []gardenv1beta1.OpenStackWorker, zoneList []string) []map[string]interface{} {
var (
workers = []map[string]interface{}{}
zoneLen = len(zoneList)
)
for _, worker := range workerList {
var workerZones = []map[string]interface{}{}
for zoneIndex, zone := range zoneList {
workerZones = append(workerZones, map[string]interface{}{
"name": zone,
"autoScalerMin": common.DistributeOverZones(zoneIndex, worker.AutoScalerMin, zoneLen),
"autoScalerMax": common.DistributeOverZones(zoneIndex, worker.AutoScalerMax, zoneLen),
})
}
workers = append(workers, map[string]interface{}{
"name": worker.Name,
"machineType": worker.MachineType,
"zones": workerZones,
})
}
return workers
}