ec2 instance type not supported specific az

• outline

Sometimes, we can NOT create EC2 instance specific availability zone for some reasons. You can check it using below script, previously.

• example

region : ap-northeast-2
instance type : c5-large

• script

aws ec2 describe-instance-type-offerings --location-type availability-zone --filters Name=instance-type,Values=c5.xlarge --region ap-northeast-2 --output table

• result

$ aws ec2 describe-instance-type-offerings --location-type availability-zone  --filters Name=instance-type,Values=c5.xlarge --region ap-northeast-2 --output table
------------------------------------------------------------
|               DescribeInstanceTypeOfferings              |
+----------------------------------------------------------+
||                  InstanceTypeOfferings                 ||
|+--------------+-------------------+---------------------+|
|| InstanceType |     Location      |    LocationType     ||
|+--------------+-------------------+---------------------+|
||  c5.xlarge   |  ap-northeast-2d  |  availability-zone  ||
||  c5.xlarge   |  ap-northeast-2a  |  availability-zone  ||
||  c5.xlarge   |  ap-northeast-2c  |  availability-zone  ||
||  c5.xlarge   |  ap-northeast-2b  |  availability-zone  ||
|+--------------+-------------------+---------------------+|

• reference

https://aws.amazon.com/ko/premiumsupport/knowledge-center/ec2-instance-type-not-supported-az-error/