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Add more details for the docker tag when using container registry. --------- Co-authored-by: wxiaoguang <wxiaoguang@gmail.com> Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
101 lines
2.5 KiB
Markdown
101 lines
2.5 KiB
Markdown
---
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date: "2021-07-20T00:00:00+00:00"
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title: "Container Registry"
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slug: "container"
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sidebar_position: 30
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draft: false
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toc: false
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menu:
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sidebar:
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parent: "packages"
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name: "Container Registry"
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sidebar_position: 30
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identifier: "container"
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---
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# Container Registry
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Publish [Open Container Initiative](https://opencontainers.org/) compliant images for your user or organization.
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The container registry follows the OCI specs and supports all compatible images like [Docker](https://www.docker.com/) and [Helm Charts](https://helm.sh/).
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## Requirements
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To work with the Container registry, you can use the tools for your specific image type.
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The following examples use the `docker` client.
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## Login to the container registry
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To push an image or if the image is in a private registry, you have to authenticate:
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```shell
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docker login gitea.example.com
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```
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If you are using 2FA or OAuth use a [personal access token](development/api-usage.md#authentication) instead of the password.
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## Image naming convention
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Images must follow this naming convention:
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`{registry}/{owner}/{image}`
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When building your docker image, using the naming convention above, this looks like:
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```shell
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# build an image with tag
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docker build -t {registry}/{owner}/{image}:{tag} .
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# name an existing image with tag
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docker tag {some-existing-image}:{tag} {registry}/{owner}/{image}:{tag}
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```
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where your registry is the domain of your gitea instance (e.g. gitea.example.com).
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For example, these are all valid image names for the owner `testuser`:
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`gitea.example.com/testuser/myimage`
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`gitea.example.com/testuser/my-image`
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`gitea.example.com/testuser/my/image`
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**NOTE:** The registry only supports case-insensitive tag names. So `image:tag` and `image:Tag` get treated as the same image and tag.
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## Push an image
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Push an image by executing the following command:
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```shell
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docker push gitea.example.com/{owner}/{image}:{tag}
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```
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| Parameter | Description |
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| ----------| ----------- |
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| `owner` | The owner of the image. |
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| `image` | The name of the image. |
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| `tag` | The tag of the image. |
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For example:
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```shell
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docker push gitea.example.com/testuser/myimage:latest
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```
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## Pull an image
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Pull an image by executing the following command:
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```shell
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docker pull gitea.example.com/{owner}/{image}:{tag}
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```
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| Parameter | Description |
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| ----------| ----------- |
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| `owner` | The owner of the image. |
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| `image` | The name of the image. |
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| `tag` | The tag of the image. |
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For example:
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```shell
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docker pull gitea.example.com/testuser/myimage:latest
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```
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