Bobcares

ECS cluster fails to delete as part of CloudFormation stack

PDF Header PDF Footer

Wondering why ECS cluster fails to delete as part of CloudFormation stack? We can help you.

Here, at Bobcares, we assist our customers with several AWS queries as part of our AWS Support Services.

Today, let us see how our Support techs assist with this query.

 

ECS cluster fails to delete as part of CloudFormation stack

Basically, when we create an Amazon ECS cluster, AWS CloudFormation creates resources such as Auto Scaling groups, virtual private clouds (VPC), or load balancers.

These resources are associate with the cluster, and their presence can prevent the deletion of the cluster.

Other issues with AWS CloudFormation can also prevent the deletion of an Amazon ECS cluster.

During the cluster deletion process, your stack EC2ContainerService-yourClusterName can run into the following errors:

  • “The vpc ‘vpc-1234567’ has dependencies and cannot be deleted”
  • “The security group sg-123456 failed to delete due to the error “resource sg-123456 has a dependent object”

Today, let us see the steps followed by our Support Techs to resolve this issue.

Delete the cluster by skipping the resources with dependencies

1.    Firstly, open the AWS CloudFormation console.

2.    To find the stack that failed, for Filter, choose Active, and then choose Failed.

3.    Then, select the failed stack that won’t delete.

4.    Choose Actions, and then choose Delete Stack.

5.    Select the check boxes next to the resources that failed to delete.

6.    Choose Yes, Delete.

7.    Finally, delete the Amazon ECS cluster.

 

Delete the retained resources

The following examples show you how to delete resources that are commonly associated with the underlying AWS CloudFormation stack.

Security group dependency example

1.    To find security groups associated with the security group that you want to delete, run the following AWS CLI command:

aws ec2 describe-security-groups --filters Name=ip-permission.group-id,Values=[sg-xxxxxxxxx] --region us-east-1 | jq '.SecurityGroups[] .GroupId'

Please note jq is a command line JSON processor.

2.    Clear the dependencies for the security group that you want to delete.

3.    Finally, delete the security group resource.

 

VPC dependency example

1.    To identify the dependent resources of your VPC, run the following AWS CLI command. Replace vpc-xxxxxxxx with your VPC value, and replace RegionId with your AWS Region code:

aws ec2 describe-subnets --filters "Name=vpc-id,Values=vpc-xxxxxxxx" --region RegionId | grep SubnetId

2.    Then, clear the dependencies for the VPC that you want to delete.

3.    Finally, delete the VPC.

 

[Need help with the process? We’d be happy to assist]

 

Conclusion

In short, we saw how our Support Techs resolve when ECS cluster fails to delete as part of CloudFormation stack.

PREVENT YOUR SERVER FROM CRASHING!

Never again lose customers to poor server speed! Let us help you.

Our server experts will monitor & maintain your server 24/7 so that it remains lightning fast and secure.

GET STARTED

var google_conversion_label = "owonCMyG5nEQ0aD71QM";
0 Comments

Submit a Comment

Your email address will not be published. Required fields are marked *

server management

Spend time on your business, not on your servers.

TALK TO US

Or click here to learn more.

Speed issues driving customers away?
We’ve got your back!

Privacy Preference Center

Necessary

Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas of the website. The website cannot function properly without these cookies.

PHPSESSID - Preserves user session state across page requests.

gdpr[consent_types] - Used to store user consents.

gdpr[allowed_cookies] - Used to store user allowed cookies.

PHPSESSID, gdpr[consent_types], gdpr[allowed_cookies]
PHPSESSID
WHMCSpKDlPzh2chML

Statistics

Statistic cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously.

_ga - Preserves user session state across page requests.

_gat - Used by Google Analytics to throttle request rate

_gid - Registers a unique ID that is used to generate statistical data on how you use the website.

smartlookCookie - Used to collect user device and location information of the site visitors to improve the websites User Experience.

_ga, _gat, _gid
_ga, _gat, _gid
smartlookCookie
_clck, _clsk, CLID, ANONCHK, MR, MUID, SM

Marketing

Marketing cookies are used to track visitors across websites. The intention is to display ads that are relevant and engaging for the individual user and thereby more valuable for publishers and third party advertisers.

IDE - Used by Google DoubleClick to register and report the website user's actions after viewing or clicking one of the advertiser's ads with the purpose of measuring the efficacy of an ad and to present targeted ads to the user.

test_cookie - Used to check if the user's browser supports cookies.

1P_JAR - Google cookie. These cookies are used to collect website statistics and track conversion rates.

NID - Registers a unique ID that identifies a returning user's device. The ID is used for serving ads that are most relevant to the user.

DV - Google ad personalisation

_reb2bgeo - The visitor's geographical location

_reb2bloaded - Whether or not the script loaded for the visitor

_reb2bref - The referring URL for the visit

_reb2bsessionID - The visitor's RB2B session ID

_reb2buid - The visitor's RB2B user ID

IDE, test_cookie, 1P_JAR, NID, DV, NID
IDE, test_cookie
1P_JAR, NID, DV
NID
hblid
_reb2bgeo, _reb2bloaded, _reb2bref, _reb2bsessionID, _reb2buid

Security

These are essential site cookies, used by the google reCAPTCHA. These cookies use an unique identifier to verify if a visitor is human or a bot.

SID, APISID, HSID, NID, PREF
SID, APISID, HSID, NID, PREF