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securitygroup.ts
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securitygroup.ts
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// Copyright 2016-2022, Pulumi Corporation.
//
// 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.
import * as aws from "@pulumi/aws";
import * as pulumi from "@pulumi/pulumi";
import { InputTags } from "./utils";
/**
* NodeGroupSecurityGroupOptions describes the configuration options accepted
* by a security group for use with a NodeGroup.
*/
export interface NodeGroupSecurityGroupOptions {
/**
* The VPC in which to create the worker node group.
*/
vpcId: pulumi.Input<string>;
/**
* The security group associated with the EKS cluster.
*/
clusterSecurityGroup: pulumi.Input<aws.ec2.SecurityGroup>;
/*
* Key-value mapping of tags to apply to this security group.
*/
tags?: InputTags;
/**
* The EKS cluster associated with the worker node group.
*/
eksCluster: pulumi.Input<aws.eks.Cluster>;
}
/**
* NodeGroupSecurityGroup is a component that wraps creating a security group for node groups with the
* default ingress & egress rules required to connect and work with the EKS cluster security group.
*/
export class NodeGroupSecurityGroup extends pulumi.ComponentResource {
/**
* The security group for node groups with the default ingress & egress rules required to connect
* and work with the EKS cluster security group.
*/
public readonly securityGroup: pulumi.Input<aws.ec2.SecurityGroup>;
/**
* The EKS cluster ingress rule.
*/
public readonly securityGroupRule: pulumi.Input<aws.ec2.SecurityGroupRule>;
/**
* Creates a security group for node groups with the default ingress & egress
* rules required to connect and work with the EKS cluster security group.
*
* @param name The _unique_ name of this component.
* @param args The arguments for this component.
* @param opts A bag of options that control this component's behavior.
*/
constructor(
name: string,
args: NodeGroupSecurityGroupOptions,
opts?: pulumi.ComponentResourceOptions,
) {
super("eks:index:NodeGroupSecurityGroup", name, args, opts);
[this.securityGroup, this.securityGroupRule] = createNodeGroupSecurityGroup(
name,
args,
this,
opts?.provider,
);
this.registerOutputs(undefined);
}
}
/**
* createNodeGroupSecurityGroup creates a security group for node groups with the
* default ingress & egress rules required to connect and work with the EKS
* cluster security group.
*/
export function createNodeGroupSecurityGroup(
name: string,
args: NodeGroupSecurityGroupOptions,
parent: pulumi.ComponentResource,
provider?: pulumi.ProviderResource,
): [aws.ec2.SecurityGroup, aws.ec2.SecurityGroupRule] {
const eksCluster = pulumi.output(args.eksCluster);
const clusterSecurityGroup = pulumi.output(args.clusterSecurityGroup);
const nodeSecurityGroup = new aws.ec2.SecurityGroup(
`${name}-nodeSecurityGroup`,
{
vpcId: args.vpcId,
revokeRulesOnDelete: true,
tags: pulumi.all([args.tags, eksCluster.name]).apply(
([tags, clusterName]) =>
<aws.Tags>{
Name: `${name}-nodeSecurityGroup`,
[`kubernetes.io/cluster/${clusterName}`]: "owned",
...tags,
},
),
},
{ parent, provider },
);
const nodeIngressRule = new aws.ec2.SecurityGroupRule(
`${name}-eksNodeIngressRule`,
{
description: "Allow nodes to communicate with each other",
type: "ingress",
fromPort: 0,
toPort: 0,
protocol: "-1", // all
securityGroupId: nodeSecurityGroup.id,
self: true,
},
{ parent, provider },
);
const nodeClusterIngressRule = new aws.ec2.SecurityGroupRule(
`${name}-eksNodeClusterIngressRule`,
{
description:
"Allow worker Kubelets and pods to receive communication from the cluster control plane",
type: "ingress",
fromPort: 1025,
toPort: 65535,
protocol: "tcp",
securityGroupId: nodeSecurityGroup.id,
sourceSecurityGroupId: clusterSecurityGroup.id,
},
{ parent, provider },
);
const extApiServerClusterIngressRule = new aws.ec2.SecurityGroupRule(
`${name}-eksExtApiServerClusterIngressRule`,
{
description:
"Allow pods running extension API servers on port 443 to receive communication from cluster control plane",
type: "ingress",
fromPort: 443,
toPort: 443,
protocol: "tcp",
securityGroupId: nodeSecurityGroup.id,
sourceSecurityGroupId: clusterSecurityGroup.id,
},
{ parent, provider },
);
const nodeInternetEgressRule = new aws.ec2.SecurityGroupRule(
`${name}-eksNodeInternetEgressRule`,
{
description: "Allow internet access.",
type: "egress",
fromPort: 0,
toPort: 0,
protocol: "-1", // all
cidrBlocks: ["0.0.0.0/0"],
securityGroupId: nodeSecurityGroup.id,
},
{ parent, provider },
);
const eksClusterIngressRule = new aws.ec2.SecurityGroupRule(
`${name}-eksClusterIngressRule`,
{
description: "Allow pods to communicate with the cluster API Server",
type: "ingress",
fromPort: 443,
toPort: 443,
protocol: "tcp",
securityGroupId: clusterSecurityGroup.id,
sourceSecurityGroupId: nodeSecurityGroup.id,
},
{ parent, provider },
);
return [nodeSecurityGroup, eksClusterIngressRule];
}