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iaminstanceprofilerole.go
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/*
Copyright 2019 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 awstasks
import (
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/iam"
"k8s.io/klog/v2"
"k8s.io/kops/upup/pkg/fi"
"k8s.io/kops/upup/pkg/fi/cloudup/awsup"
"k8s.io/kops/upup/pkg/fi/cloudup/cloudformation"
"k8s.io/kops/upup/pkg/fi/cloudup/terraform"
"k8s.io/kops/upup/pkg/fi/cloudup/terraformWriter"
)
// +kops:fitask
type IAMInstanceProfileRole struct {
Name *string
Lifecycle fi.Lifecycle
InstanceProfile *IAMInstanceProfile
Role *IAMRole
}
func (e *IAMInstanceProfileRole) Find(c *fi.Context) (*IAMInstanceProfileRole, error) {
cloud := c.Cloud.(awsup.AWSCloud)
if e.Role == nil || e.Role.ID == nil {
klog.V(2).Infof("Role/RoleID not set")
return nil, nil
}
roleID := *e.Role.ID
request := &iam.GetInstanceProfileInput{InstanceProfileName: e.InstanceProfile.Name}
response, err := cloud.IAM().GetInstanceProfile(request)
if awsErr, ok := err.(awserr.Error); ok {
if awsErr.Code() == iam.ErrCodeNoSuchEntityException {
return nil, nil
}
}
if err != nil {
return nil, fmt.Errorf("error getting IAMInstanceProfile: %v", err)
}
ip := response.InstanceProfile
for _, role := range ip.Roles {
if aws.StringValue(role.RoleId) != roleID {
continue
}
actual := &IAMInstanceProfileRole{}
actual.InstanceProfile = &IAMInstanceProfile{ID: ip.InstanceProfileId, Name: ip.InstanceProfileName}
actual.Role = &IAMRole{ID: role.RoleId, Name: role.RoleName}
// Prevent spurious changes
actual.Name = e.Name
actual.Lifecycle = e.Lifecycle
return actual, nil
}
return nil, nil
}
func (e *IAMInstanceProfileRole) Run(c *fi.Context) error {
return fi.DefaultDeltaRunMethod(e, c)
}
func (s *IAMInstanceProfileRole) CheckChanges(a, e, changes *IAMInstanceProfileRole) error {
if a != nil {
if e.Role == nil {
return fi.RequiredField("Role")
}
if e.InstanceProfile == nil {
return fi.RequiredField("InstanceProfile")
}
}
return nil
}
func (_ *IAMInstanceProfileRole) RenderAWS(t *awsup.AWSAPITarget, a, e, changes *IAMInstanceProfileRole) error {
if a == nil {
request := &iam.AddRoleToInstanceProfileInput{
InstanceProfileName: e.InstanceProfile.Name,
RoleName: e.Role.Name,
}
_, err := t.Cloud.IAM().AddRoleToInstanceProfile(request)
if err != nil {
return fmt.Errorf("error creating IAMInstanceProfileRole: %v", err)
}
}
return nil
}
type terraformIAMInstanceProfile struct {
Name *string `json:"name" cty:"name"`
Role *terraformWriter.Literal `json:"role" cty:"role"`
Tags map[string]string `json:"tags,omitempty" cty:"tags"`
}
func (_ *IAMInstanceProfileRole) RenderTerraform(t *terraform.TerraformTarget, a, e, changes *IAMInstanceProfileRole) error {
tf := &terraformIAMInstanceProfile{
Name: e.InstanceProfile.Name,
Role: e.Role.TerraformLink(),
Tags: e.InstanceProfile.Tags,
}
return t.RenderResource("aws_iam_instance_profile", *e.InstanceProfile.Name, tf)
}
type cloudformationIAMInstanceProfile struct {
InstanceProfileName *string `json:"InstanceProfileName"`
Roles []*cloudformation.Literal `json:"Roles"`
// TODO: Add tags when Cloudformation supports them
}
func (_ *IAMInstanceProfileRole) RenderCloudformation(t *cloudformation.CloudformationTarget, a, e, changes *IAMInstanceProfileRole) error {
cf := &cloudformationIAMInstanceProfile{
InstanceProfileName: e.InstanceProfile.Name,
Roles: []*cloudformation.Literal{e.Role.CloudformationLink()},
}
return t.RenderResource("AWS::IAM::InstanceProfile", *e.InstanceProfile.Name, cf)
}