When comparing Google Container Registry vs Amazon EC2 Container Registry, the Slant community recommends Google Container Registry for most people. In the question“What are the best docker image private registries?” Google Container Registry is ranked 8th while Amazon EC2 Container Registry is ranked 17th. The most important reason people chose Google Container Registry is:
Since it's hosted on Google Cloud Platform then it's very reliable in both the uptime and the security.
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Pros
Pro Reliable and consistent uptime
Since it's hosted on Google Cloud Platform then it's very reliable in both the uptime and the security.
Pro Charged only for the storage
Users are charged only for the Google Cloud Storage space that they are occupying and not for any additional services.
Pro Amazon ECR is integrated with Amazon EC2 Container Service (ECS), simplifying your development to production workflow.
Pro Free tier
Amazon ECR, like other AWS tools has a free tier for beginners of 500MB-month storage for one year.
Cons
Con The access token expires after 12 hours
You have to build a more complex deployment script in order to compensate for the AWS token expiring after 12 hours.