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 forgejo.example.com
```
If you are using 2FA or OAuth use a [personal access token]({{< relref "doc/developers/api-usage.en-us.md#authentication" >}}) instead of the password.
## Image naming convention
Images must follow this naming convention:
`{registry}/{owner}/{image}`
For example, these are all valid image names for the owner `testuser`:
`forgejo.example.com/testuser/myimage`
`forgejo.example.com/testuser/my-image`
`forgejo.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.