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Contents
---
title: ufo docker push
---
The `ufo docker push` command pushes the most recent Docker image built by `ufo docker build` to a registry. Example:
```sh
ufo docker build # to build the image
ufo docker name # to see the image name
ufo docker push # push up the registry
```
You'll see that `ufo docker push` simply shells out and calls `docker push`:
```
$ ufo docker push
=> docker push 123456789.dkr.ecr.us-east-1.amazonaws.com/hi:ufo-2018-02-13T10-51-44-e0cc7be
The push refers to a repository [123456789.dkr.ecr.us-east-1.amazonaws.com/hi]
399c739c257d: Layer already exists
...
Pushed 123456789.dkr.ecr.us-east-1.amazonaws.com/hi:ufo-2018-02-13T10-51-44-e0cc7be docker image. Took 1s.
$
```
You can also specify your own custom image to push as a parameter.
```
ufo docker push my/image:tag
```
You could also use the `--push` flag as part of the `ufo docker build` command to achieve the same thing as `ufo docker push`. Some find that `ufo docker push` is more intutitive.
```sh
ufo docker build --push # same as above
```
## Docker Authorization
Note in order to push the image to a registry you will need to login into the registry. If you are using DockerHub use the `docker login` command. If you are using AWS ECR then, ufo will automatically try to authorize you and configure your `~/.docker/config.json`. If can also use `aws ecr get-login` command.
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5 entries across 5 versions & 1 rubygems