1. docker build -t uheejoon/hello:1.0.0.

2. docker image list

3. docker tag uheejoon/hello:1.0.0 uheejoon/hello:2.0.0

4-1. docker login -u uheejoon

4-2. docker push uheejoon/hello:1.0.0

5. docker rmi uheejoon/hello:1.0.0

6. docker pull uheejoon/hello:1.0.0

7. docker save -o file.tar uheejoon/hello:1.0.0

8. docker load -i file.tar

1. ctr ns list

2. ctr -n k8s.io image list

3. ctr images pull docker.io/uheejoon/hello:1.0.0

4. ctr images tag docker.io/uheejoon/hello:1.0.0docker.io/uheejoon/hello:2.0.0

5. ctr image push docker.io/uheejoon/hello:2.0.0--user uheejoon

6. ctr -n default image export file.tar docker.io/uheejoon/hello:1.0.0

7. ctr -n k8s.io image import file.tar

8. ctr -n k8s.io image remove docker.io/uheejoon/hello:1.0.0

docker pull uheejoon/api-tester:v1.0.0

ctr image pull docker.io/uheejoon/api-tester:v1.0.0

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