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Build an Image with Docker and Push to a Container Registry
Kim Schlesinger edited this page May 24, 2021
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Prereqs:
- Docker is installed and running on your machine
- Check with
docker --version
- Get fancy with
docker info
- Check with
- Build an app and create a Dockerfile
- Create a Docker image
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In the directory for your app run
docker build -t <nameofimage> .
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Test that it's working by creating a container locally
docker run -p 4000:80 <nameofimage>
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Login in your registry
- For Dockerhub:
docker login
- For DOCR:
doctl registry login
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Tag your image with your registry and repo name
docker tag <my-image> registry.digitalocean.com/<my-registry>/<my-image>:tag
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Upload your image to your registry
docker push registry.digitalocean.com/<my-registry>/<my-image>
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Repeat and update the tag when a change is made
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