ec2-metadata | easy interface to query the EC2 metadata API | AWS library
kandi X-RAY | ec2-metadata Summary
kandi X-RAY | ec2-metadata Summary
An easy interface to query the EC2 metadata API, with caching.
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Top functions reviewed by kandi - BETA
- Returns an instance of the spot instance
- Make a GET request
- Ensure the token has expired
- Get the instance identity document
- Public hostname
- Return public IPv4 address
- A list of IPv6 cidr blocks
- Return the IP address of the subnet
- A list of IPv4 CIDR blocks
- Returns the IPv4 CIDR block
- Return the user data
- List of IPv6s
- The kernel s kernel id
- The public host name
- List of public ipv4s
- Returns the iam info
- List of subnet s ipv6
- Return the placement zone id of this placement
- List of ipv4 associations
- Returns the target lifecycle state
- Return IAM security credentials
- Get network interfaces
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:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install ec2-metadata
You can use ec2-metadata like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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