mirror of https://github.com/kubernetes/kops.git
73 lines
2.0 KiB
Go
73 lines
2.0 KiB
Go
/*
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Copyright 2021 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 karpenter
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import (
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/kops/pkg/model/iam"
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)
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// ServiceAccount represents the service-account used by the dns-controller.
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// It implements iam.Subject to get AWS IAM permissions.
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type ServiceAccount struct{}
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var _ iam.Subject = &ServiceAccount{}
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// BuildAWSPolicy generates a custom policy for a ServiceAccount IAM role.
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func (r *ServiceAccount) BuildAWSPolicy(b *iam.PolicyBuilder) (*iam.Policy, error) {
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clusterName := b.Cluster.ObjectMeta.Name
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p := iam.NewPolicy(clusterName, b.Partition)
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addKarpenterPermissions(p)
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return p, nil
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}
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// ServiceAccount returns the kubernetes service account used.
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func (r *ServiceAccount) ServiceAccount() (types.NamespacedName, bool) {
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return types.NamespacedName{
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Namespace: "kube-system",
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Name: "karpenter",
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}, true
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}
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func addKarpenterPermissions(p *iam.Policy) {
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p.AddUnconditionalActions(
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// Not included because we require Karpenter
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// use existing kOps instance group launch templates
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// "ec2:CreateLaunchTemplate",
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// "ec2:DeleteLaunchTemplate",
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"ec2:CreateFleet",
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"ec2:CreateTags",
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"ec2:DescribeAvailabilityZones",
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"ec2:DescribeImages",
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"ec2:DescribeInstanceTypeOfferings",
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"ec2:DescribeInstanceTypes",
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"ec2:DescribeInstances",
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"ec2:DescribeLaunchTemplates",
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"ec2:DescribeSecurityGroups",
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"ec2:DescribeSpotPriceHistory",
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"ec2:DescribeSubnets",
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"ec2:RunInstances",
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"ec2:TerminateInstances",
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"iam:PassRole",
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"pricing:GetProducts",
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"ssm:GetParameter",
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)
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}
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