mirror of https://github.com/kubernetes/kops.git
89 lines
2.5 KiB
Go
89 lines
2.5 KiB
Go
/*
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Copyright 2019 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 domodel
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import (
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"fmt"
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"k8s.io/kops/pkg/apis/kops"
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"k8s.io/kops/pkg/dns"
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"k8s.io/kops/upup/pkg/fi"
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"k8s.io/kops/upup/pkg/fi/cloudup/do"
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"k8s.io/kops/upup/pkg/fi/cloudup/dotasks"
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)
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// APILoadBalancerModelBuilder builds a LoadBalancer for accessing the API
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type APILoadBalancerModelBuilder struct {
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*DOModelContext
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Lifecycle fi.Lifecycle
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}
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var _ fi.ModelBuilder = &APILoadBalancerModelBuilder{}
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func (b *APILoadBalancerModelBuilder) Build(c *fi.ModelBuilderContext) error {
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// Configuration where a load balancer fronts the API
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if !b.UseLoadBalancerForAPI() {
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return nil
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}
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lbSpec := b.Cluster.Spec.API.LoadBalancer
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if lbSpec == nil {
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// Skipping API LB creation; not requested in Spec
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return nil
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}
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switch lbSpec.Type {
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case kops.LoadBalancerTypeInternal:
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// OK
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case kops.LoadBalancerTypePublic:
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// OK
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default:
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return fmt.Errorf("unhandled LoadBalancer type %q", lbSpec.Type)
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}
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clusterName := do.SafeClusterName(b.ClusterName())
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loadbalancerName := "api-" + clusterName
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clusterMasterTag := do.TagKubernetesClusterMasterPrefix + ":" + clusterName
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// Create LoadBalancer for API LB
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loadbalancer := &dotasks.LoadBalancer{
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Name: fi.String(loadbalancerName),
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Region: fi.String(b.Cluster.Spec.Subnets[0].Region),
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DropletTag: fi.String(clusterMasterTag),
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Lifecycle: b.Lifecycle,
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}
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if b.Cluster.Spec.NetworkID != "" {
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loadbalancer.VPCUUID = fi.String(b.Cluster.Spec.NetworkID)
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} else if b.Cluster.Spec.NetworkCIDR != "" {
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vpcName := "vpc-" + clusterName
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loadbalancer.VPCName = fi.String(vpcName)
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loadbalancer.NetworkCIDR = fi.String(b.Cluster.Spec.NetworkCIDR)
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}
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c.AddTask(loadbalancer)
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// Temporarily do not know the role of the following function
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if dns.IsGossipHostname(b.Cluster.Name) || b.UsePrivateDNS() {
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// Ensure the LB hostname is included in the TLS certificate,
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// if we're not going to use an alias for it
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loadbalancer.ForAPIServer = true
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}
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return nil
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}
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