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82 lines
2.5 KiB
Markdown
82 lines
2.5 KiB
Markdown
---
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title: "push"
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description: "The push command description and usage"
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keywords: "share, push, image"
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---
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<!-- This file is maintained within the docker/docker Github
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repository at https://github.com/docker/docker/. Make all
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pull requests against that repo. If you see this file in
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will be rejected.
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-->
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# push
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```markdown
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Usage: docker push [OPTIONS] NAME[:TAG]
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Push an image or a repository to a registry
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Options:
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--disable-content-trust Skip image signing (default true)
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--help Print usage
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```
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## Description
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Use `docker push` to share your images to the [Docker Hub](https://hub.docker.com)
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registry or to a self-hosted one.
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Refer to the [`docker tag`](tag.md) reference for more information about valid
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image and tag names.
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Killing the `docker push` process, for example by pressing `CTRL-c` while it is
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running in a terminal, terminates the push operation.
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Progress bars are shown during docker push, which show the uncompressed size. The
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actual amount of data that's pushed will be compressed before sending, so the uploaded
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size will not be reflected by the progress bar.
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Registry credentials are managed by [docker login](login.md).
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### Concurrent uploads
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By default the Docker daemon will push five layers of an image at a time.
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If you are on a low bandwidth connection this may cause timeout issues and you may want to lower
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this via the `--max-concurrent-uploads` daemon option. See the
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[daemon documentation](dockerd.md) for more details.
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## Examples
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### Push a new image to a registry
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First save the new image by finding the container ID (using [`docker ps`](ps.md))
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and then committing it to a new image name. Note that only `a-z0-9-_.` are
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allowed when naming images:
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```bash
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$ docker commit c16378f943fe rhel-httpd
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```
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Now, push the image to the registry using the image ID. In this example the
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registry is on host named `registry-host` and listening on port `5000`. To do
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this, tag the image with the host name or IP address, and the port of the
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registry:
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```bash
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$ docker tag rhel-httpd registry-host:5000/myadmin/rhel-httpd
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$ docker push registry-host:5000/myadmin/rhel-httpd
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```
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Check that this worked by running:
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```bash
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$ docker images
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```
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You should see both `rhel-httpd` and `registry-host:5000/myadmin/rhel-httpd`
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listed.
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