Route53, AWS-CLI : Add Alias A name with aws-cli - amazon-web-services

I have a requirement, where Kubernetes service is generating an ELB for us with DNS name. I am adding that as an Alias for A, which is giving faster DNS propagation as compared to CNAME. I want to automated adding the entry via shell-script, but it's not working out, I get error as mentioned below. Please note, all e
Error log:
An error occurred (InvalidChangeBatch) when calling the ChangeResourceRecordSets operation: [Tried to create an alias that targets dualstack.AXXXXXXXXX-46346364.eu-central-1.elb.amazonaws.com., type A in zone Z0jshgdjhdg, but the alias target name does not lie within the target zone, Tried to create an alias that targets dualstack.asdgdfhgdfh-56767687.eu-central-1.elb.amazonaws.com., type A in zone Z0XXXXX, but that target was not found]
Command used:
aws route53 change-resource-record-sets --hosted-zone-id /hostedzone/Z0XXXXXXX --change-batch '{"Changes": [ { "Action": "UPSERT", "ResourceRecordSet": { "Name": "test.dev.domain.com", "Type": "A", "AliasTarget":{ "HostedZoneId": "Z0XXXXX","DNSName": "aesdgdfg-46456.eu-central-1.elb.amazonaws.com","EvaluateTargetHealth": false} } } ]}'
What am I doing wrong?
Hosted Zone as asked:

Based on the comments.
The issue was caused by using wrong HostedZoneId in AliasTarget. The correct one is the HostedZoneId associated with your ALB. It can be found in the EC2 console, in Description tab of your ALB under Hosted zone option.
The command should use two HostedZoneIds:
aws route53 change-resource-record-sets \
--hosted-zone-id /hostedzone/<zone-id-from-route53>\
--change-batch \
'{"Changes": [ { "Action": "UPSERT", "ResourceRecordSet": { "Name": "test.dev.domain.com", "Type": "A", "AliasTarget":{ "HostedZoneId": "<zone-id-of-ALB>","DNSName": "aesdgdfg-46456.eu-central-1.elb.amazonaws.com","EvaluateTargetHealth": false} } } ]}'

Related

Point the hostname of ec2-instance to new IP in DR region

My question is that, I have 2 regions in AWS. One is the source region of ec2-instance and other is the target region for that ec2-instances.
In a Disaster Recovery project, when I am doing failover then ec2-instance spin up in target region with new IP (due to application availability hostname is static).
And I need to point the hostname to new IP address, now I want to point old hostname with new IP using any API/SDK, lambda function, basically I want to do this pointing job with automation.
You can use Route 53 for this with AWS CLI (or other programming languages):
Boto3 Python:
import boto3
myNewIP = "X.X.X.X"
client = boto3.client("route53")
client.change_resource_record_sets(
HostedZoneId="your.domain.com",
ChangeBatch={
"Comment": "Updating DNS to new host IP",
"Changes": [
{
"Action": "UPSERT",
"ResourceRecordSet": {
"Name": "www.your.domain.com",
"Type": "A", #A for IP
"ResourceRecords": [
{
"Value": myNewIP
}
]
"TTL": 60
}
}
]
}
)
For more information check this link Boto3 or AWS CLI.

CloudFormation AWS::CertificateManager::Certificate automated certificate validation

According the AWS docs at here and here I should be able to automate a certificate creation and validation using cloudformation. Apparently when you specify a HostedZoneId in the DomainValidationOptions, it is supposed to create the required DNS record to complete the validation (at least that is what it seems from the very vague documentation). My CF template for the cert looks like this:
Resources:
MyAPICert:
Type: AWS::CertificateManager::Certificate
Properties:
DomainName: xxxx.dev.mydomain.io
DomainValidationOptions:
- DomainName: mydomain.io
HostedZoneId: /hostedzone/Z03XXXXXXXXXXXX
ValidationMethod: DNS
'mydomain.io' (changed of course) was registered using AWS as registrar as the documents say must be the case for automated validation to work.
This template above is included in a serverless.yml as a resource. However, when I deploy, the stack creation is just stuck waiting for the DNS record - i.e. it does not add the required CNAME entry as I understand it is supposed to do and as such the stack is stuck.
Has anyone gotten this feature to work?
And, yes, I know about the 3rd party custom resources that try to do the same thing, I don't want to use them if CF is supposed to do this natively now.
I hit the same issue. You need to specify the full domain name including the host in the DomainValidationOptions DomainName parameter, and just specify the hosted zone id:
Resources:
MyAPICert:
Type: AWS::CertificateManager::Certificate
Properties:
DomainName: xxxx.dev.mydomain.io
DomainValidationOptions:
- DomainName: xxxx.dev.mydomain.io
HostedZoneId: Z03XXXXXXXXXXXX
ValidationMethod: DNS
In my testing, the Route53 validation record was added about a minute after running the stack, and the domain successfully validated itslef after about 15 minutes.
If this is stuck as in progress for a long time, it could be that you are using a Private Hosted Zone when you need to use the Public one. Probably you don't use a private CA.
That process should take 2-3 minutes, not more than that.
I just deployed the below template to CloudFormation and it successfully created the validation DNS records and authorised the certificate.
If you were to pass the parameters SiteDnsZoneName=mydomain.io. and SiteDnsZoneId=ABCDEFGHIJKLMNOPQRSTU it would create a SAN cert that covers both mydomain.io and *.mydomain.io
{
"Description": "Deploy wildcard SAN cert inc bare domain. (Must deploy cert to us-east-1 for CloudFront)",
"Parameters": {
"SiteDnsZoneName": {
"Type": "String",
"MinLength": 4,
"Description": "DNS Zone",
"Default": "example.com"
},
"SiteDnsZoneId": {
"Type": "String",
"MinLength": 8,
"Description": "DNS Zone Id",
"Default": "ABCDEFGHIJKLMNOPQRSTU"
}
},
"Resources": {
"SiteCertificate": {
"Type": "AWS::CertificateManager::Certificate",
"Properties": {
"DomainName": {
"Fn::Join": [
".",
[
"*",
{
"Ref": "SiteDnsZoneName"
}
]
]
},
"SubjectAlternativeNames": [
{
"Ref": "SiteDnsZoneName"
}
],
"DomainValidationOptions": [
{
"DomainName": {
"Ref": "SiteDnsZoneName"
},
"HostedZoneId": {
"Ref": "SiteDnsZoneId"
}
}
],
"ValidationMethod": "DNS"
}
}
}
}
Note: If you want to use a cert in CloudFront you have to deploy the cert in us-east-1.
Note 2: Route53 needs to be hosting your DNS Zone, but theres no requirement on AWS being the registrar. Your domain can be registered with any provider, so long as you use the AWS name servers provided by Route53 when you add the zone.

How can I list all resources that belongs to a certain VPC?

At my AWS account, I have few VPC. I'm trying to find a way to list all resources that located under a certain VPC.
Thanks!!
You can do it in three ways: AWS CLI, AWS console or code.
AWS CLI
You can use AWS CLI to list all ENIs associated with the VPC and prettify the output using the --query parameter to get a resource list with the desired fields (AZ, instance-id, etc.).
aws ec2 describe-network-interfaces --filters Name=vpc-id,Values=<vpc-id> --query 'NetworkInterfaces[*].[AvailabilityZone, OwnerId, Attachment.InstanceId, PrivateIpAddresses[*].Association.PublicIp]'
aws ec2 describe-network-interfaces --filters Name=vpc-id,Values=<vpc-id> --query 'NetworkInterfaces[*].[RequesterId,Description]'
A sample of the raw output (only one instance on the VPC):
"NetworkInterfaces": [
{
"Association": {
"IpOwnerId": "amazon",
"PublicDnsName": "ec2-54-196-57-169.compute-1.amazonaws.com",
"PublicIp": "54.196.57.169"
},
"Attachment": {
"AttachTime": "2020-08-24T10:59:16+00:00",
"AttachmentId": "eni-attach-047e562690aabbffd",
"DeleteOnTermination": true,
"DeviceIndex": 0,
"InstanceId": "i-0fe495a6c17bd0f82",
"InstanceOwnerId": "570398916848",
"Status": "attached"
},
"AvailabilityZone": "us-east-1d",
"Description": "",
"Groups": [
{
"GroupName": "launch-wizard-1",
"GroupId": "sg-0aa7d8257bb487e1b"
}
],
"InterfaceType": "interface",
"Ipv6Addresses": [],
"MacAddress": "0e:58:38:33:9a:31",
"NetworkInterfaceId": "eni-0b20855178d276783",
"OwnerId": "570398916848",
"PrivateDnsName": "ip-172-31-34-30.ec2.internal",
"PrivateIpAddress": "172.31.34.30",
"PrivateIpAddresses": [
{
"Association": {
"IpOwnerId": "amazon",
"PublicDnsName": "ec2-54-196-57-169.compute-1.amazonaws.com",
"PublicIp": "54.196.57.169"
},
"Primary": true,
"PrivateDnsName": "ip-172-31-34-30.ec2.internal",
"PrivateIpAddress": "172.31.34.30"
}
],
"RequesterManaged": false,
"SourceDestCheck": true,
"Status": "in-use",
"SubnetId": "subnet-e2bc5fbd",
"TagSet": [],
"VpcId": "vpc-6ad2e110"
}
]
And now filtered:
For the first --query
[
"us-east-1d",
"57039816848",
"i-0fe495a6c17bd0f82",
[
"44.196.57.169"
]
]
And for the second --query (another VPC):
[
"amazon-elasticache",
"ElastiCache alon-001"
],
[
"amazon-elasticache",
"ElastiCache alon-002"
],
[
"975289786086",
"arn:aws:ecs:us-east-2:57039916848:attachment/22a90802-fae7-4afb-9a7e-43e6f4be8ca4"
],
[
"074689309192",
"Interface for NAT Gateway nat-069344579d8bda20"
],
[
"amazon-elb",
"ELB app/EC2Co-EcsEl-YX74WCWEGOK/0b6d7bc60b540b1"
],
[
"amazon-elb",
"ELB app/EC2Co-EcsEl-YX74WCWGGOK/0b6bd7c60b540b1"
],
[
"amazon-elasticache",
"ElastiCache alon-003"
]
AWS Console
You can do the same using the AWS console.
Under EC2->Network Interfaces, search for the desired vpc-id in the search bar.
Code
Using a python script called vpc-inside.py you can describe all of your VPC resources.
usage: vpc-inside.py [-h] -v VPC [-r REGION] [-p PROFILE]
optional arguments:
-h, --help show this help message and exit
-v VPC, --vpc VPC The VPC to annihilate
-r REGION, --region REGION AWS region that the VPC resides in
-p PROFILE, --profile PROFILE AWS profile
And the output will look like this:
EKSs in VPC vpc-07ef7f777429cfd82:
Omikron
--------------------------------------------
ASGs in VPC vpc-07ef7f777429cfd82:
eks-pooks-9ebf225b-70a9-a026-034f-c7431df9b7ba resides in vpc-07ef7f777429cfd82
eks-pooks-9ebf225b-70a9-a026-034f-c7431df9b7ba
--------------------------------------------
RDSs in VPC vpc-07ef7f777429cfd82:
--------------------------------------------
EC2s in VPC vpc-07ef7f777429cfd82:
i-0c63874d77ea2ba78
i-043740f224015e69e
--------------------------------------------
Lambdas in VPC vpc-07ef7f777429cfd82:
--------------------------------------------
Classic ELBs in VPC vpc-07ef7f777429cfd82:
--------------------------------------------
ELBs V2 in VPC vpc-07ef7f777429cfd82:
--------------------------------------------
NAT GWs in VPC vpc-07ef7f777429cfd82:
--------------------------------------------
VPC EndPoints in VPC vpc-07ef7f777429cfd82:
--------------------------------------------
IGWs in VPC vpc-07ef7f777429cfd82:
--------------------------------------------
ENIs in VPC vpc-07ef7f777429cfd82:
eni-079231232dc136305
eni-05ff227eca8341a08
eni-0c01b2871887ac3f7
eni-00e11d4f9590161b4
--------------------------------------------
Security Groups in VPC vpc-07ef7f777429cfd82:
sg-0b4554a65e1560745
sg-0f93574d6b180b263
--------------------------------------------
Routing tables in VPC vpc-07ef7f777429cfd82:
rtb-0694bdbdd696b2bed
rtb-072ec82a18d8a04ba
--------------------------------------------
ACLs in VPC vpc-07ef7f777429cfd82:
acl-0c0087eabf9335940
--------------------------------------------
Subnets in VPC vpc-07ef7f777429cfd82:
subnet-0b8cc1132727e5b5d
subnet-0e47ee92a9ca80280
subnet-0c25990d9a138616b
--------------------------------------------
You can try in AWS Config > Advanced queries and run below query :
All resources:
SELECT
resourceId,
resourceName,
resourceType
Resources directly associated to VPC:
SELECT
resourceId,
resourceName,
resourceType
WHERE
relationships.resourceId = 'vpc-02368dae78f1387e5'
Query can be further enhanced, see some example of preconfigured query.
VPCs mostly contain EC2 instances, RDS instances, Load Balancers and Lambda functions. Plus, things that use EC2 underneath, like Elasticache. These are the types of resources that connect into a VPC.
Some people suggest using the Tag Editor to find resources: Is there a way to list all resources in AWS.
I also like aws inventory, which simply runs in your browser and does a great job of showing resources. Just give it an Access Key and Secret Key to run.
There's no built in service to easily do this.
The best hope you'd have of find all resources is programatically looping over resources that support:
SubnetId
VpcId

AWS change record set to private ip address

I'm trying to write a script that would allow the instances to update a record set in AWS each time a new one is spun up.
I'm following this guide:
https://aws.amazon.com/premiumsupport/knowledge-center/simple-resource-record-route53-cli/
My sample.json looks like this:
{
"Comment": "CREATE/DELETE/UPSERT a record ",
"Changes": [{
"Action": "UPSERT",
"ResourceRecordSet": {
"Name": "test.mydomain.com",
"Type": "A",
"TTL": 300,
"ResourceRecords": [{ "Value": "4.4.4.4"}]
}}]
}
I want to replace the 4.4.4.4 but with instance's private IP address.
I tried inserting $IP_ADDRESS there, but obviously, it didn't work.
I also tried entering this manually by doing this:
IP_ADDRESS=$(curl http://169.254.169.254/latest/meta-data/local-ipv4)
aws route53 change-resource-record-sets --hosted-zone-id HKJA837HJS --change-batch {"Comment": "UPSERT a record", "Changes": [{"Action": "UPSERT", "ResourceRecordSet":{"Name":"test.mydomain.com","Type":"A","TTL":300,"ResourceRecords":[{"Value":"$IP_ADDRESS"}]}}]}
When I do this I keep getting the following error:
Unknown options: Changes:, [{Action:, UPSERT,, ResourceRecordSet:Name:test.mydomain.com}]}, ResourceRecordSet:Type:A}]}, ResourceRecordSet:TTL:300}]}, ResourceRecordSet:ResourceRecords:[{Value:}]}]}, UPSERT a record,
I tried re-formatting this numerous times but there's always something wrong.
How can I make sure the instance's IP address is inserted in that recordset each time a new instance in launched?
Trying to pass JSON via the command line is very difficult to get correct because of the need to escape your quote marks.
Instead put your json into a file. Execute a command like this:
sed "s/4.4.4.4/$NEWIP/g" update_rr.json
aws --profile PROD route53 change-resource-record-sets --hosted-zone-id ABCDEFGH012345 --change-batch file://update_rr.json

How to publish kubernetes LoadBalancer Ingress URL to aws route53

Today when I launch an app using kubernetes over aws it exposes a publicly visible LoadBalancer Ingress URL, however to link that to my domain to make the app accessible to the public, I need to manually go into the aws route53 console in a browser on every launch. Can I update the aws route53 Resource Type A to match the latest Kubernetes LoadBalancer Ingress URL from the command line ?
Kubernetes over gcloud shares this challenge of having to either predefine a Static IP which is used in launch config or manually do a browser based domain linkage post launch. On aws I was hoping I could use something similar to this from the command line
aws route53domains update-domain-nameservers ???
__ OR __ can I predefine an aws kubernetes LoadBalancer Ingress similar to doing a predefined Static IP when over gcloud ?
to show the deployed app's LoadBalancer Ingress URL issue
kubectl describe svc
... output
Name: aaa-deployment-407
Namespace: ruptureofthemundaneplane
Labels: app=bbb
pod-template-hash=4076262206
Selector: app=bbb,pod-template-hash=4076262206
Type: LoadBalancer
IP: 10.0.51.82
LoadBalancer Ingress: a244bodhisattva79c17cf7-61619.us-east-1.elb.amazonaws.com
Port: port-1 80/TCP
NodePort: port-1 32547/TCP
Endpoints: 10.201.0.3:80
Port: port-2 443/TCP
NodePort: port-2 31248/TCP
Endpoints: 10.201.0.3:443
Session Affinity: None
No events.
UPDATE:
Getting error trying new command line technique (hat tip to #error2007s comment) ... issue this
aws route53 list-hosted-zones
... outputs
{
"HostedZones": [
{
"ResourceRecordSetCount": 6,
"CallerReference": "2D58A764-1FAC-DEB4-8AC7-AD37E74B94E6",
"Config": {
"PrivateZone": false
},
"Id": "/hostedzone/Z3II3949ZDMDXV",
"Name": "chainsawhaircut.com."
}
]
}
Important bit used below : hostedzone Z3II3949ZDMDXV
now I craft following using this Doc (and this Doc as well) as file /change-resource-record-sets.json (NOTE I can successfully change Type A using a similar cli call ... however I need to change Type A with an Alias Target of LoadBalancer Ingress URL)
{
"Comment": "Update record to reflect new IP address of fresh deploy",
"Changes": [{
"Action": "UPSERT",
"ResourceRecordSet": {
"Name": "chainsawhaircut.com.",
"Type": "A",
"TTL": 60,
"AliasTarget": {
"HostedZoneId": "Z3II3949ZDMDXV",
"DNSName": "a244bodhisattva79c17cf7-61619.us-east-1.elb.amazonaws.com",
"EvaluateTargetHealth": false
}
}
}]
}
on command line I then issue
aws route53 change-resource-record-sets --hosted-zone-id Z3II3949ZDMDXV --change-batch file:///change-resource-record-sets.json
which give this error message
An error occurred (InvalidInput) when calling the ChangeResourceRecordSets operation: Invalid request
Any insights ?
Here is the logic needed to update aws route53 Resource Record Type A with value from freshly minted kubernetes LoadBalancer Ingress URL
step 1 - identify your hostedzone Id by issuing
aws route53 list-hosted-zones
... from output here is clip for my domain
"Id": "/hostedzone/Z3II3949ZDMDXV",
... importantly never populate json with hostedzone Z3II3949ZDMDXV its only used as a cli parm ... there is a second similarly named token HostedZoneId which is entirely different
step 2 - see current value of your route53 domain record ... issue :
aws route53 list-resource-record-sets --hosted-zone-id Z3II3949ZDMDXV --query "ResourceRecordSets[?Name == 'scottstensland.com.']"
... output
[
{
"AliasTarget": {
"HostedZoneId": "Z35SXDOTRQ7X7K",
"EvaluateTargetHealth": false,
"DNSName": "dualstack.asomepriorvalue39e7db-1867261689.us-east-1.elb.amazonaws.com."
},
"Type": "A",
"Name": "scottstensland.com."
},
{
"ResourceRecords": [
{
"Value": "ns-1238.awsdns-26.org."
},
{
"Value": "ns-201.awsdns-25.com."
},
{
"Value": "ns-969.awsdns-57.net."
},
{
"Value": "ns-1823.awsdns-35.co.uk."
}
],
"Type": "NS",
"Name": "scottstensland.com.",
"TTL": 172800
},
{
"ResourceRecords": [
{
"Value": "ns-1238.awsdns-26.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400"
}
],
"Type": "SOA",
"Name": "scottstensland.com.",
"TTL": 900
}
]
... in above notice value of
"HostedZoneId": "Z35SXDOTRQ7X7K",
which is the second similarly name token Do NOT use wrong Hosted Zone ID
step 3 - put below into your change file aws_route53_type_A.json (for syntax Doc see link mentioned in comment above)
{
"Comment": "Update record to reflect new DNSName of fresh deploy",
"Changes": [
{
"Action": "UPSERT",
"ResourceRecordSet": {
"AliasTarget": {
"HostedZoneId": "Z35SXDOTRQ7X7K",
"EvaluateTargetHealth": false,
"DNSName": "dualstack.a0b82c81f47d011e6b98a0a28439e7db-1867261689.us-east-1.elb.amazonaws.com."
},
"Type": "A",
"Name": "scottstensland.com."
}
}
]
}
To identify value for above field "DNSName" ... after the kubernetes app deploy on aws it responds with a LoadBalancer Ingress as shown in output of cli command :
kubectl describe svc --namespace=ruptureofthemundaneplane
... as in
LoadBalancer Ingress: a0b82c81f47d011e6b98a0a28439e7db-1867261689.us-east-1.elb.amazonaws.com
... even though my goal is to execute a command line call I can do this manually by getting into the aws console browser ... pull up my domain on route53 ...
... In this browser picklist editable text box (circled in green) I noticed the URL gets magically prepended with : dualstack. Previously I was missing that magic string ... so json key "DNSName" wants this
dualstack.a0b82c81f47d011e6b98a0a28439e7db-1867261689.us-east-1.elb.amazonaws.com.
finally execute the change request
aws route53 change-resource-record-sets --hosted-zone-id Z3II3949ZDMDXV --change-batch file://./aws_route53_type_A.json
... output
{
"ChangeInfo": {
"Status": "PENDING",
"Comment": "Update record to reflect new DNSName of fresh deploy",
"SubmittedAt": "2016-07-13T14:53:02.789Z",
"Id": "/change/CFUX5R9XKGE1C"
}
}
.... now to confirm change is live run this to show record
aws route53 list-resource-record-sets --hosted-zone-id Z3II3949ZDMDXV
You can also use external-dns project.
AWS specific setup can be found here
After installation it can be used with an annotation e.g.: external-dns.alpha.kubernetes.io/hostname: nginx.external-dns-test.my-org.com.
Note the IAM permissions needs to be set properly.