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42 lines
1.1 KiB
Markdown
42 lines
1.1 KiB
Markdown
---
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title: Use the Redoc Docker image
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redirectFrom:
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- /docs/redoc/quickstart/docker/
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---
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# How to use the Redoc Docker image
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Redoc is available as a pre-built Docker image in [Docker Hub](https://hub.docker.com/r/redocly/redoc/).
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If you have [Docker](https://docs.docker.com/get-docker/) installed, pull the image with the following command:
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```docker
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docker pull redocly/redoc
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```
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Then run the image with the following command:
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```docker
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docker run -p 8080:80 redocly/redoc
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```
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The preview starts on port 8080, based on the port used in the command,
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and can be accessed at `http://localhost:8080`.
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To exit the preview, use `control+C`.
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By default Redoc starts with a demo Swagger Petstore OpenAPI definition located at
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http://petstore.swagger.io/v2/swagger.json. You can update this URL using
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the environment variable `SPEC_URL`.
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For example:
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```bash
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docker run -p 8080:80 -e SPEC_URL=https://api.example.com/openapi.json redocly/redoc
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```
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## Create a Dockerfile
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You can also create a Dockerfile with some predefined environment variables. Check out
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a sample [Dockerfile](https://github.com/Redocly/redoc/blob/main/config/docker/Dockerfile)
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in our code repo.
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