AWS Code deploy cannot reach instance service

Question

I'm going to use ec2, s3, codedeploy to configure cicd through github Action

These are the settings.

This is Code deploy IAM Role
AmazonEC2FullAccess ,AmazonS3FullAccess, AWSCodeDeployRole

this is EC2 IAM Role
AmazonS3FullAccess, AWSCodeDeployRole, AmazonEC2RoleforAWSCodeDeploy, AWSCodeDeployFullAccess, AWSCodeDeployRoleForECS

This is User IAM Role
User access was done using a local programming key
AmazonEC2FuullAccess, AmazonS3FullAccess, AWSCodeDeployFullAccess, AWSCodeDeployRole, IAMFullAccess,PowerUserAccess

And I can access S3 through aws cli and download the zip file
Just code deployment doesn't work 
When codedeploy is turned on, the following error occurs

2023-05-20 14:54:40 ERROR [codedeploy-agent(725)]: InstanceAgent::Plugins::CodeDeployPlugin::CommandPoller: Cannot reach InstanceService: Aws::CodeDeployCommand::Errors::AccessDeniedException -
2023-05-20 14:56:10 INFO  [codedeploy-agent(725)]: Version file found in /opt/codedeploy-agent/.version with agent version OFFICIAL_1.3.2-1902_deb.
2023-05-20 14:56:10 INFO  [codedeploy-agent(725)]: [Aws::CodeDeployCommand::Client 400 0.035239 0 retries] poll_host_command(host_identifier:"arn:aws:ec2:ap-northeast-2:634327468890:instance/i-023d83ff3c7b4341e") Aws::CodeDeployCommand::Errors::AccessDeniedException

2023-05-20 14:56:10 ERROR [codedeploy-agent(725)]: InstanceAgent::Plugins::CodeDeployPlugin::CommandPoller: Cannot reach InstanceService: Aws::CodeDeployCommand::Errors::AccessDeniedException -
2023-05-20 14:57:40 INFO  [codedeploy-agent(725)]: Version file found in /opt/codedeploy-agent/.version with agent version OFFICIAL_1.3.2-1902_deb.
2023-05-20 14:57:40 INFO  [codedeploy-agent(725)]: [Aws::CodeDeployCommand::Client 400 0.032228 0 retries] poll_host_command(host_identifier:"arn:aws:ec2:ap-northeast-2:634327468890:instance/i-023d83ff3c7b4341e") Aws::CodeDeployCommand::Errors::AccessDeniedException

Answer

You probably have AWS credential file stored somewhere in the instance, e.g, `/root/.aws/credentials` or `/home/{user}/.aws/credentials`. Remove this file and restart the CodeDeploy agent service e,g. `systemctl restart codeploy-agent`. I found the solution at https://stackoverflow.com/questions/37721601/aws-code-deploy-deployment-failed

Answer

I thought that CodeDeploy Agent was not getting the IAM information from the instance profile properly.  
What happens if I restart EC2 itself?

AWS Code deploy cannot reach instance service

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