FEAT: allow ec2 role based access for ECR repo #1494
Description
Summary
Allow EC2 role based access in case of ECR container registry.
Motivation
Currently devtron support only accessKey and secretKey based support for ECR and many organizations dont pefer it because of security risk. This feature will allow users to push and scan images in ECR using EC2 role based access.
Proposal
If user has selected ECR repo but has not provided username and password then use EC2 role to access ECR.
Testing Guideline [Optional]
Create ECR type container registry without user name and password and run CI pipeline with security enabled. It should complete it successfully. try this again after it has been idle for 14 hrs.