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package resources
import (
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/cloudformation"
"github.com/aws/aws-sdk-go/service/cloudformation/cloudformationiface"
"github.com/rebuy-de/aws-nuke/pkg/types"
"github.com/sirupsen/logrus"
"strings"
"time"
)
func init() {
register("CloudFormationStackSet", ListCloudFormationStackSets)
}
func ListCloudFormationStackSets(sess *session.Session) ([]Resource, error) {
svc := cloudformation.New(sess)
params := &cloudformation.ListStackSetsInput{
Status: aws.String(cloudformation.StackSetStatusActive),
}
resources := make([]Resource, 0)
for {
resp, err := svc.ListStackSets(params)
if err != nil {
return nil, err
}
for _, stackSetSummary := range resp.Summaries {
resources = append(resources, &CloudFormationStackSet{
svc: svc,
stackSetSummary: stackSetSummary,
sleepDuration: 10 * time.Second,
})
}
if resp.NextToken == nil {
break
}
params.NextToken = resp.NextToken
}
return resources, nil
}
type CloudFormationStackSet struct {
svc cloudformationiface.CloudFormationAPI
stackSetSummary *cloudformation.StackSetSummary
sleepDuration time.Duration
}
func (cfs *CloudFormationStackSet) findStackInstances() (map[string][]string, error) {
accounts := make(map[string][]string)
input := &cloudformation.ListStackInstancesInput{
StackSetName: cfs.stackSetSummary.StackSetName,
}
for {
resp, err := cfs.svc.ListStackInstances(input)
if err != nil {
return nil, err
}
for _, stackInstanceSummary := range resp.Summaries {
if regions, ok := accounts[*stackInstanceSummary.Account]; !ok {
accounts[*stackInstanceSummary.Account] = []string{*stackInstanceSummary.Region}
} else {
accounts[*stackInstanceSummary.Account] = append(regions, *stackInstanceSummary.Region)
}
}
if resp.NextToken == nil {
break
}
input.NextToken = resp.NextToken
}
return accounts, nil
}
func (cfs *CloudFormationStackSet) waitForStackSetOperation(operationId string) error {
for {
result, err := cfs.svc.DescribeStackSetOperation(&cloudformation.DescribeStackSetOperationInput{
StackSetName: cfs.stackSetSummary.StackSetName,
OperationId: &operationId,
})
if err != nil {
return err
}
logrus.Infof("Got stackInstance operation status on stackSet=%s operationId=%s status=%s", *cfs.stackSetSummary.StackSetName, operationId, *result.StackSetOperation.Status)
if *result.StackSetOperation.Status == cloudformation.StackSetOperationResultStatusSucceeded {
return nil
} else if *result.StackSetOperation.Status == cloudformation.StackSetOperationResultStatusFailed || *result.StackSetOperation.Status == cloudformation.StackSetOperationResultStatusCancelled {
return fmt.Errorf("unable to delete stackSet=%s operationId=%s status=%s", *cfs.stackSetSummary.StackSetName, operationId, *result.StackSetOperation.Status)
} else {
logrus.Infof("Waiting on stackSet=%s operationId=%s status=%s", *cfs.stackSetSummary.StackSetName, operationId, *result.StackSetOperation.Status)
time.Sleep(cfs.sleepDuration)
}
}
}
func (cfs *CloudFormationStackSet) deleteStackInstances(accountId string, regions []string) error {
logrus.Infof("Deleting stack instance accountId=%s regions=%s", accountId, strings.Join(regions, ","))
regionsInput := make([]*string, len(regions))
for i, region := range regions {
regionsInput[i] = aws.String(region)
fmt.Printf("region=%s i=%d\n", region, i)
}
result, err := cfs.svc.DeleteStackInstances(&cloudformation.DeleteStackInstancesInput{
StackSetName: cfs.stackSetSummary.StackSetName,
Accounts: []*string{&accountId},
Regions: regionsInput,
RetainStacks: aws.Bool(true), //this will remove the stack set instance from the stackset, but will leave the stack in the account/region it was deployed to
})
fmt.Printf("got result=%v err=%v\n", result, err)
if result == nil {
return fmt.Errorf("got null result")
}
if err != nil {
return err
}
return cfs.waitForStackSetOperation(*result.OperationId)
}
func (cfs *CloudFormationStackSet) Remove() error {
accounts, err := cfs.findStackInstances()
if err != nil {
return err
}
for accountId, regions := range accounts {
err := cfs.deleteStackInstances(accountId, regions)
if err != nil {
return err
}
}
_, err = cfs.svc.DeleteStackSet(&cloudformation.DeleteStackSetInput{
StackSetName: cfs.stackSetSummary.StackSetName,
})
return err
}
func (cfs *CloudFormationStackSet) Properties() types.Properties {
properties := types.NewProperties()
properties.Set("Name", cfs.stackSetSummary.StackSetName)
properties.Set("StackSetId", cfs.stackSetSummary.StackSetId)
return properties
}
func (cfs *CloudFormationStackSet) String() string {
return *cfs.stackSetSummary.StackSetName
}
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