olivier-schmitt-sonarsource

## retrieve-EC2-region-information-from-metadata.md

      
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                quiver
                / retrieve-EC2-region-information-from-metadata.md
            
            
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              March 14, 2024 16:42
            
              
                retrieve EC2's region from instance metadata
              
          
    Sometimes you want to retrieve EC2 insntances' region information.
You can query that information through instance metadata(169.254.169.254).
$ curl --silent http://169.254.169.254/latest/dynamic/instance-identity/document
{
  "privateIp" : "172.31.2.15",
  "instanceId" : "i-12341ee8",
  "billingProducts" : null,
 "instanceType" : "t2.small",


## create-or-update-stack.sh
#!/usr/bin/env bash

usage="Usage: $(basename "$0") region stack-name [aws-cli-opts]

where:
  region       - the AWS region
  stack-name   - the stack name
  aws-cli-opts - extra options passed directly to create-stack/update-stack
"
	#!/usr/bin/env bash

	usage="Usage: $(basename "$0") region stack-name [aws-cli-opts]

	where:
	region - the AWS region
	stack-name - the stack name
	aws-cli-opts - extra options passed directly to create-stack/update-stack
	"