gitea/docs/content/usage/packages/container.en-us.md
wienans f2d5c6edde
Docker Tag Information in Docs (#29047)
Add more details for the docker tag when using container registry.

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Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
2024-02-16 21:22:00 +08:00

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