ec2-metadata | metadata provides to access metadata | AWS library
kandi X-RAY | ec2-metadata Summary
kandi X-RAY | ec2-metadata Summary
ec2-metadata provides to access metadata, and you can use this in outside of ec2 like in ec2
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Top functions reviewed by kandi - BETA
- Get a default value for a child key
- Initialize a new hash
- Retrieve the children of the child bucket
- Get the default value for the default child
- Initializes a new child object .
- Return a hash representation of all keys as keys .
- Check if the key exists
- Returns true if the given key exists
- Get all children
ec2-metadata Key Features
ec2-metadata Examples and Code Snippets
Community Discussions
Trending Discussions on ec2-metadata
QUESTION
I'd like to use IMDSv2 inside a container running on an EC2 instance.
I want to use the tokens because they are required in my metadata options:
...ANSWER
Answered 2022-Apr-15 at 13:11I order to access IMDSv2 metadata from a docker container, you must increase the hop limit for IMDSv2 in the instance metadata configuration. From the aws docs:
In a container environment, if the hop limit is 1, the IMDSv2 response does not return because going to the container is considered an additional network hop. To avoid the process of falling back to IMDSv1 and the resultant delay, in a container environment we recommend that you set the hop limit to 2
To change the hop limit, you can use modify-instance-metadata-options in awscli:
QUESTION
Using a shell script, I'm looking to get the current AZ where the instance is located.
Here is what I've tried but obviously HOST_NAME is not a command. How do I save the current AZ in a HOST_NAME variable?
...ANSWER
Answered 2022-Feb-21 at 03:06You can't have spaces in HOST_NAME = . It should eb:
QUESTION
I have a few commands that I need to run on start-up of a new Elastic Beanstalk instance.
How do I structure the .config file so that the commands run on boot-up of a new instance.
These are the comamnds that I need ran:
ANSWER
Answered 2021-Dec-09 at 00:03To run those multiple commands as one, you can do the following:
QUESTION
We are having some trouble to mount an AWS S3 bucket (using s3fs v1.90) into an AWS EC2 instance which:
- is running Ubuntu 18.04
- requires IMDS v2 session tokens
- is behind a proxy
The HTTP response code returned by the curl lib is "417 - Expectation Failed" (more details below). I found some hints on the www that the 417 error might relate to our proxy config, see:
HTTP POST Returns Error: 417 "Expectation Failed."
https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019LuWSAU
This makes me believe that our NO_PROXY config is not being picked up by s3fs, but I'm really not sure...
Anyway, this is what we've tried to do in order to mount the bucket:
...ANSWER
Answered 2021-Sep-08 at 15:54A fix for this is being worked on in https://github.com/s3fs-fuse/s3fs-fuse/pull/1766
QUESTION
I would like to understand how to fetch an EC2's 'Name' tag value once version 2 of the Instance Metadata Service is enforced over version 1.
When I tried to describe_instances under an ec2 client via boto3 my requests returned access denied.
I created the following code to access an EC2's metadata:
...ANSWER
Answered 2021-Jun-15 at 06:10The Access Denied error indicates that AWS has rejected your call to DescribeInstances().
If an IAM Role has been assigned to the instance, then add the ec2:DescribeInstances permission to the IAM Role. The Amazon EC2 Instance Metadata Service will be used to retrieve credentials for IAM Role.
If you are using credentials from an IAM User, the add the permission to that IAM User.
Tags are not provided by the Instance Metadata service.
QUESTION
I'm trying to set a variable TOKEN with a value of a IMDSv2 (AWS instance metadata) token to get an instance IP address.
Executing a set of commands through the salt CLI yields desired results: Here's the command below:
...ANSWER
Answered 2021-Mar-16 at 06:11As per the documentation, the cmd.run does not process commands through Shell by default. Quoting a "Warning" from the above link:
This function does not process commands through a shell unless the python_shell flag is set to True. This means that any shell-specific functionality such as 'echo' or the use of pipes, redirection or &&, should either be migrated to cmd.shell or have the python_shell=True flag set here.
So there are two options:
Instead of using
cmd.runusecmd.shell. E.g.:
QUESTION
Following is the way to get OpsWorks instance id of my current instance:
...ANSWER
Answered 2020-Aug-20 at 07:11On Amazon Linux 2, the ID is in /etc/aws/opsworks/instance-agent.yml
Thus you could get it:
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On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.
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