CodeDeploy onpremise registration failing with AccessDeniedException on Amazon Lightsail - amazon-web-services

aws deploy register-on-premises-instance --instance-name XXXXX --iam-user-arn arn:aws:iam::XXXXXXXXXXXX:user/LightSailCodeDeployUser --region ap-south-1
An error occurred (AccessDeniedException) when calling the RegisterOnPremisesInstance operation: User: arn:aws:sts::XXXXXXXXXXX:assumed-role/AmazonLightsailInstanceRole/i-XXXXXXXXXXXXXX is not authorized to perform: codedeploy:RegisterOnPremisesInstance on resource: arn:aws:codedeploy:ap-south-1:XXXXXXXXXX:instance:XXXXXXXXXXXX
I didn't even create the role AmazonLightsailInstanceRole, then how did it come in the picture. My user have all permissions on codedeploy though. I am following this link to set up. https://aws.amazon.com/blogs/compute/using-aws-codedeploy-and-aws-codepipeline-to-deploy-applications-to-amazon-lightsail/

I made the same mistake and then realized that command is meant to be run on your local machine and not the instance!

AmazonLightsailInstanceRole is a service-linked role automatically created by aws:
Service-linked roles are predefined by the service and include all the permissions that the service requires to call other AWS services on your behalf.
The error you are getting is not about you not having the codedeploy:RegisterOnPremisesInstance permission.
The error is about the AmazonLightsailInstanceRole not having it. It does not matter if you (i.e. your IAM user) has all CodeDeploy permissions.
Normally you would add the missing permissions to the role. How to work with the AmazonLightsailInstanceRole is described in the following AWS documentaiton:
Using Service-Linked Roles for Amazon Lightsail
Editing a Service-Linked Role
However, I'm not sure if you can modify the AmazonLightsailInstanceRole and add the missing permissions. Some service-linked roles can be modified, some not.

The documentation is a bit confusing. Create a new user in IAM with admin role (full privileges) and use the credentials of that user to run the command in your local machine.

Related

Adding AWS GameLift policies for uploading new builds

I am trying to upload a new AWS GameLift Linux server using the AWS CLI but I get the following error:
An error occurred (AccessDeniedException) when calling the CreateBuild operation: User: arn:aws:iam::------:user/----- is not authorized to perform: gamelift:CreateBuild because no identity-based policy allows the gamelift:CreateBuild action
I added the arn:aws:iam::aws:policy/GameLiftGameServerGroupPolicy to my group permissions. I can see in the policy json that there isn't a CreateBuild action. It either needs to be added or you can't do it this way.
The AWS documentation is useless and on this page: https://docs.aws.amazon.com/gamelift/latest/developerguide/security_iam_troubleshoot.html#security_iam_troubleshoot-no-permissions
it helpfully advises: ... asks his administrator to update his policies
My user is the main root user for my AWS account but I have no idea how to resolve this. Any ideas?
I worked out how to create a new Policy and add the service permissions. You click on 'create policy' and then choose the 'GameLift' service. I added all the available actions. Seemed to do the trick.
Why did AWS miss this out of the documentation?

EC2 instance using the wrong user when executing PHP code

I have a ec2 instance with a role attached to it. The role is called webserver and has all the relevant policies attached to it.
I am trying to invoke my lambda function from my PHP code, but I get the following error:
Failed attempt at deleting data/ account: exception 'Aws\Lambda\Exception\LambdaException' with message 'Error executing "Invoke" on "https://lambda.eu-west-2.amazonaws.com/2015-03-31/functions/blahFunction/invocations"; AWS HTTP error: Client error: `POST https://lambda.eu-west-2.amazonaws.com/2015-03-31/functions/blahFunction/invocations` resulted in a `403 Forbidden` response:
{"Message":"User: arn:aws:iam::34234324324342:user/SecretGuy is not authorized to perform: lambda:InvokeFunction on resour (truncated...)
AccessDeniedException (client): User: arn:aws:iam::34234324324342:user/SecretGuy is not authorized to perform: lambda:InvokeFunction on resource: arn:aws:lambda:eu-west-2:34234324324342:function:blahFunction because no identity-based policy allows the lambda:InvokeFunction action - {"Message":"User: arn:aws:iam::34234324324342:user/SecretGuy is not authorized to perform: lambda:InvokeFunction on resource: arn:aws:lambda:eu-west-2:34234324324342:function:blahFunction because no identity-based policy allows the lambda:InvokeFunction action"}'
Now SecretGuy is a user I created a long time ago, and somehow my ec2 is trying to use that.
I am wondering if anyone can help with this?
Thanks
From my understanding, you are running PHP code on an EC2 instance, and your code invokes the Lambda function.
And this EC2 instance has attached IAM Role with proper permissions to invoke the Lambda function. Then you tried to run your code and faced that the EC2 instance is using an unexpected IAM identity(IAM User named SecretGuy here), not the role you attached.
There's a chance that you might have IAM credentials set by environment variables for that Linux user or static credentials set on your EC2 instance.
AWS SDK client has an order to retrieve credentials on the machine. The official docs of PHP AWS SDK say,
When you initialize a new service client without providing any credential arguments, the SDK uses the default credential provider chain to find AWS credentials. The SDK uses the first provider in the chain that returns credentials without an error.
The default provider chain looks for and uses credentials as follows, in this order:
Use credentials from environment variables.
Setting environment variables is useful if you're doing development work on a machine other than an Amazon EC2 instance.
Use the AWS shared credentials file and profiles.
This credentials file is the same one used by other SDKs and the AWS CLI. If you're already using a shared credentials file, you can use that file for this purpose.
We use this method in most of our PHP code examples.
Assume an IAM role.
IAM roles provide applications on the instance with temporary security credentials to make AWS calls. For example, IAM roles offer an easy way to distribute and manage credentials on multiple Amazon EC2 instances.
To retrieve IAM credentials from the role attached,
You can check which IAM Identity you are using to call AWS API with the below command on the EC2 instance. (as that Linux user, you are running PHP code)
aws sts get-caller-identity
Then it will show result as below,
{
"UserId": "ABCDEFGHIJKLMNOPQRSTU",
"Account": "34234324324342",
"Arn": "arn:aws:iam:: 34234324324342:user/SecretGuy"
}
Then you need to look for environment variables set or static credentials files on that EC2 instance.
My guess is maybe someone used aws CLI on that EC2 before, with SecretGuy credentials, So there would be a file $HOME/.aws/credentials.
If the file exists and is confirmed as a SecretGuy access key, you have to delete that file. (If EC2 runs some critical application, you might want to copy all permissions of SecretGuy to the IAM Role you attached before deleting it to avoid unexpected service outage)
Or, you can look for environment variables.
echo $AWS_ACCESS_KEY_ID
If the above commands return the access key id value, you might have to unset environment variables.
After that, your code will retrieve credentials from IAM Role.

Insufficient access AWS whilst using AWS CLI

I've been trying to access a project in AWS devicefarm using AWS CLI.
Steps taken:
Downloaded the AWS CLI tool
Configured my credentials according to: https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-quickstart.html using aws configure command
executed aws devicefarm list-uploads --arn myProjectArn
and what i get is this error:
An error occurred (AccessDeniedException) when calling the ListUploads operation:
User: arn:aws:iam::replacingANumber:user/myUserName is not authorized to perform: devicefarm:ListUploads
on resource:
arn:aws:devicefarm:us-west-2:replacingANumber:project:replacingALongString with an explicit deny
The docs:https://docs.aws.amazon.com/eks/latest/userguide/troubleshooting_iam.html say i'm missing permissions, but devOps team in my company says i have all the permissions.
What am I missing?
Either misconfigured AWS CLI or insufficient permissions.
This can be 2 things:
Your AWS CLI is misconfigured. Make sure that when you run aws sts get-caller-identity, you get the same role as the one that the devops team claims to have the correct permission. Also, make sure that your default region is us-west-2.
If the above is correctly setup, then it comes from the permissions defined in the IAM policy. If you are able to view the policy associated with your user/role, you can check out the policy simulator to figure out which permission is missing.

AWS IAM and CLI - How to resolve pass role error?

I logged into AWS console as DEV-OPS-ENGINEER and created ROLE-1 with aws managed policy attached. I attached this role to ECS tasks.
Now from my machine I logged into aws cli as DEVELOPER and ran aws ecs update-service command but i am getting below mentioned error:
"An error occurred (AccessDeniedException) when calling the UpdateService operation: User: arn:aws:sts:::assumed-role/DEVELOPER is not authorized to perform: iam:PassRole on resource: arn:aws:iam:::role/ROLE-1"
My idea was all logged in user (with different roles) should be able to use ROLE-1.
Any idea why it is throwing me this error and how can I resolve it ?
To pass a role (and its permissions) to an AWS service, a user must have permissions to pass the role to the service. This helps administrators ensure that only approved users can configure a service with a role that grants permissions. To allow a user to pass a role to an AWS service, you must grant the PassRole permission to the user's IAM user, role, or group.
Find out more, including examples, in the AWS User Guide: Granting a user permissions to pass a role to an AWS service

Failed EC2 launching in AWS

I'm trying to replicate this lab :https://github.com/aws-samples/ec2-spot-montecarlo-workshop, But keep getting an error The provided credentials do not have permission to create the service-linked role for EC2 Spot Instances. seems like when it tries to create instance it fails, does anyone have an idea why ? I made sure to give it all permission role but didn't work ...
Seems that credentials which you use (IAM user or role) do not have permissions to execute an action iam:CreateServiceLinkedRole. The action:
Grants permission to create an IAM role that allows an AWS service to perform actions on your behalf
Please double check the IAM user and credentials which you use.
When lodging a spot request – there is a service-linked role that needs to be created (if it does not exist) in IAM called AWSServiceRoleForEC2Spot.
Check that the IAM user has the permission:
iam:CreateServiceLinkedRole
More in the docs:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-requests.html#service-linked-roles-spot-instance-requests