---
name: "singularity-registry-login"
section: "1"
platform: "linux"
package: "apptainer"
version: "1.5.4-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/singularity-registry-login"
---

# singularity-registry-login(1)

Login to an OCI/Docker registry

## NAME

apptainer-registry-login - Login to an OCI/Docker registry

## SYNOPSIS

**apptainer registry login \[login options...\]**

## DESCRIPTION

The 'registry login' command allows you to login to a specific OCI/Docker\
   registry.

## OPTIONS

**--authfile**=""\
 	Docker-style authentication file to use for writing/reading OCI registry credentials

**-h**, **--help**\[=false\]\
 	help for login

**-p**, **--password**=""\
 	password / token to authenticate with

**--password-stdin**\[=false\]\
 	take password from standard input

**-u**, **--username**=""\
 	username to authenticate with (required for Docker/OCI registry login)

## EXAMPLE

```
  To login in to a docker/OCI registry:
  $ apptainer registry login --username foo docker://docker.io
  $ apptainer registry login --username foo oras://myregistry.example.com
  Note that many cloud OCI registries use token-based authentication. The token
  should be specified as the password for login. A username is still required.
  E.g. when using a standard Azure identity and token to login to an ACR
  registry, the username '00000000-0000-0000-0000-000000000000' is required.
  Consult your provider's documentation for details concerning their specific
  login requirements.
```

## SEE ALSO

**[apptainer-registry(1)](/apptainer-registry/1.md)**

## HISTORY

22-Sep-2026 Auto generated by spf13/cobra