mirror of https://github.com/kubernetes/kops.git
138 lines
3.3 KiB
Go
138 lines
3.3 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes 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 model
|
|
|
|
import (
|
|
"k8s.io/kops/pkg/apis/kops"
|
|
"k8s.io/kops/upup/pkg/fi"
|
|
"k8s.io/kops/upup/pkg/fi/cloudup/awstasks"
|
|
)
|
|
|
|
// FirewallModelBuilder configures firewall network objects
|
|
type FirewallModelBuilder struct {
|
|
*KopsModelContext
|
|
}
|
|
|
|
var _ fi.ModelBuilder = &FirewallModelBuilder{}
|
|
|
|
func (b *FirewallModelBuilder) Build(c *fi.ModelBuilderContext) error {
|
|
if err := b.buildNodeRules(c); err != nil {
|
|
return err
|
|
}
|
|
if err := b.buildMasterRules(c); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (b *FirewallModelBuilder) buildNodeRules(c *fi.ModelBuilderContext) error {
|
|
name := "nodes." + b.ClusterName()
|
|
|
|
{
|
|
t := &awstasks.SecurityGroup{
|
|
Name: s(name),
|
|
VPC: b.LinkToVPC(),
|
|
Description: s("Security group for nodes"),
|
|
RemoveExtraRules: []string{"port=22"},
|
|
}
|
|
c.AddTask(t)
|
|
}
|
|
|
|
// Allow full egress
|
|
{
|
|
t := &awstasks.SecurityGroupRule{
|
|
Name: s("node-egress"),
|
|
SecurityGroup: b.LinkToSecurityGroup(kops.InstanceGroupRoleNode),
|
|
Egress: fi.Bool(true),
|
|
CIDR: s("0.0.0.0/0"),
|
|
}
|
|
c.AddTask(t)
|
|
}
|
|
|
|
// Nodes can talk to nodes
|
|
{
|
|
t := &awstasks.SecurityGroupRule{
|
|
Name: s("all-node-to-node"),
|
|
SecurityGroup: b.LinkToSecurityGroup(kops.InstanceGroupRoleNode),
|
|
SourceGroup: b.LinkToSecurityGroup(kops.InstanceGroupRoleNode),
|
|
}
|
|
c.AddTask(t)
|
|
}
|
|
|
|
// Nodes can talk to master nodes
|
|
{
|
|
t := &awstasks.SecurityGroupRule{
|
|
Name: s("all-node-to-master"),
|
|
SecurityGroup: b.LinkToSecurityGroup(kops.InstanceGroupRoleMaster),
|
|
SourceGroup: b.LinkToSecurityGroup(kops.InstanceGroupRoleNode),
|
|
}
|
|
c.AddTask(t)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (b *FirewallModelBuilder) buildMasterRules(c *fi.ModelBuilderContext) error {
|
|
name := "masters." + b.ClusterName()
|
|
|
|
{
|
|
t := &awstasks.SecurityGroup{
|
|
Name: s(name),
|
|
VPC: b.LinkToVPC(),
|
|
Description: s("Security group for masters"),
|
|
RemoveExtraRules: []string{
|
|
"port=22",
|
|
"port=443",
|
|
},
|
|
}
|
|
c.AddTask(t)
|
|
}
|
|
|
|
// Allow full egress
|
|
{
|
|
t := &awstasks.SecurityGroupRule{
|
|
Name: s("master-egress"),
|
|
SecurityGroup: b.LinkToSecurityGroup(kops.InstanceGroupRoleMaster),
|
|
Egress: fi.Bool(true),
|
|
CIDR: s("0.0.0.0/0"),
|
|
}
|
|
c.AddTask(t)
|
|
}
|
|
|
|
// Masters can talk to masters
|
|
{
|
|
t := &awstasks.SecurityGroupRule{
|
|
Name: s("all-master-to-master"),
|
|
SecurityGroup: b.LinkToSecurityGroup(kops.InstanceGroupRoleMaster),
|
|
SourceGroup: b.LinkToSecurityGroup(kops.InstanceGroupRoleMaster),
|
|
}
|
|
c.AddTask(t)
|
|
}
|
|
|
|
// Masters can talk to nodes
|
|
{
|
|
t := &awstasks.SecurityGroupRule{
|
|
Name: s("all-master-to-node"),
|
|
SecurityGroup: b.LinkToSecurityGroup(kops.InstanceGroupRoleNode),
|
|
SourceGroup: b.LinkToSecurityGroup(kops.InstanceGroupRoleMaster),
|
|
}
|
|
c.AddTask(t)
|
|
}
|
|
|
|
return nil
|
|
}
|