问题
Im new to AWS. I want to set up a private docker repository on an AWS ECS container instance. I created a repository named name. The example push commands shown by AWS are working.
aws ecr get-login --region us-west-2
docker build -t name .
docker tag name:latest ############.dkr.ecr.us-west-2.amazonaws.com/name:latest
docker push ############.dkr.ecr.us-west-2.amazonaws.com/name:latest
But with this commands I build and pushed an image named name and I want to build an image named foo. So I altered the commands to:
docker build -t foo .
docker tag foo ###########.dkr.ecr.us-west-2.amazonaws.com/name/foo
docker push ###########.dkr.ecr.us-west-2.amazonaws.com/name/foo
This should work, but it doesn't. After a period of retrys I get the error:
The push refers to a repository [###########.dkr.ecr.us-west-2.amazonaws.com/name/foo]
8cc63cf4528f: Retrying in 1 second
...
name unknown: The repository with name 'name/foo' does not exist in the registry with id '############'
Does AWS really require a dedicated repository for every image i want to push?
回答1:
The EC2 Container Registry requires an image Repository to be setup for each image "name" or "namespace/name" you want to publish to the registry.
You can publish any :tags you want in each Repository though (The default limit is 100 tags).
I haven't seen anywhere in the AWS documentation that specifically states the repository -> image name mapping but it's implied by Creating a Repository - Section 6d in the ECR User Guide
The Docker Image spec includes it's definition of a Repository
Repository
A collection of tags grouped under a common prefix (the name component before
:). For example, in an image tagged with the namemy-app:3.1.4, my-app is the Repository component of the name. A repository name is made up of slash-separated name components, optionally prefixed by a DNS hostname. The hostname must comply with standard DNS rules, but may not contain_characters. If a hostname is present, it may optionally be followed by a port number in the format:8080. Name components may contain lowercase characters, digits, and separators. A separator is defined as a period, one or two underscores, or one or more dashes. A name component may not start or end with a separator.
回答2:
You need to create a repository for each image name, but the image name can be of the form "mycompanyname/helloworld". So you create mycompanyname/app1, mycompanyname/app2, etc
aws ecr create-repository --repository-name mycompanyname/helloworld
aws ecr create-repository --repository-name mycompanyname/app1
aws ecr create-repository --repository-name mycompanyname/app2
docker tag helloworld:latest xxxxxxxx.dkr.ecr.us-west-2.amazonaws.com/mycompanyname/helloworld:latest
docker push xxxxxxxx.dkr.ecr.us-west-2.amazonaws.com/mycompanyname/helloworld:latest
docker tag app1:latest xxxxxxxx.dkr.ecr.us-west-2.amazonaws.com/mycompanyname/app1:latest
docker push xxxxxxxx.dkr.ecr.us-west-2.amazonaws.com/mycompanyname/app1:latest
回答3:
No need to create a repo per image, just restructure naming:
docker build -t foo .
docker tag foo ####.dkr.ecr.us-west-2.amazonaws.com/name:foo_v0.23.1
docker push ####.dkr.ecr.us-west-2.amazonaws.com/name:foo_v0.23.1
来源：https://stackoverflow.com/questions/37540921/push-docker-image-to-amazon-ecs-repository