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79 lines
2.2 KiB
Markdown
79 lines
2.2 KiB
Markdown
# Title
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1. [TL;DR](#tldr)
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1. [Disks](#disks)
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1. [Further readings](#further-readings)
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1. [Sources](#sources)
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## TL;DR
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Use an instance profile to pass an IAM role to an EC2 instance.
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<details>
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<summary>Real world use cases</summary>
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```sh
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# Get the IDs of running nginx instances in 'dev'.
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aws ec2 describe-instances --output 'text' \
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--query 'Reservations[].Instances[].InstanceId[]'
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--filters \
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'Name=instance-state-name,Values=running' \
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'Name=tag:env,Values=dev' \
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'Name=tag:app,Values=nginx' \
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# Start SSM sessions to specific machines.
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aws ec2 describe-instances --output text \
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--query 'Reservations[].Instances[].InstanceId' \
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--filters \
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'Name=app,Values=mysql' \
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'Name=instance-state-name,Values=running' \
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| xargs -ot aws ssm start-session --target
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# Show images details.
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aws ec2 describe-images --image-ids 'ami-8b8c57f8'
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aws ec2 describe-images --filters \
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'Name=name,Values=["al2023-ami-minimal-*"]' \
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'Name=owner-alias,Values=["amazon"]' \
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'Name=architecture,Values=["arm64","x86_64"]' \
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'Name=block-device-mapping.volume-type,Values=["gp3"]'
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```
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</details>
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## Disks
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See [EBS].
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## Further readings
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- [AWS EC2 Instance pricing comparison]
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- [EC2Instances.info on vantage.sh]
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- [SSM]
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- [Connect to your instances without requiring a public IPv4 address using EC2 Instance Connect Endpoint]
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### Sources
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- [Using instance profiles]
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- [DescribeImages] API
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- [`describe-images`][describe-images] CLI subcommand
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<!--
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References
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-->
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<!-- In-article sections -->
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<!-- Knowledge base -->
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[ebs]: ebs.md
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[ssm]: ssm.md
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<!-- Files -->
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<!-- Upstream -->
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[connect to your instances without requiring a public ipv4 address using ec2 instance connect endpoint]: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/connect-with-ec2-instance-connect-endpoint.html
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[describe-images]: https://docs.aws.amazon.com/cli/latest/reference/ec2/describe-images.html
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[describeimages]: https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeImages.html
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[using instance profiles]: https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use_switch-role-ec2_instance-profiles.html
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<!-- Others -->
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[aws ec2 instance pricing comparison]: https://ec2instances.github.io/
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[ec2instances.info on vantage.sh]: https://instances.vantage.sh/
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