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Merge pull request #22670 from sarahsanders-docker/get-started-content 

get started: add troubleshooting callout
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Sarah Sanders 2025-05-20 12:43:33 -04:00 committed by GitHub
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content/get-started/workshop/04_sharing_app.md
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@ -38,8 +38,15 @@ In the following image, you can see an example Docker command from Docker Hub. T
## Push the image
1. In the command line, run the `docker push` command that you see on Docker
Hub. Note that your command will have your Docker ID, not "docker". For example, `docker push YOUR-USER-NAME/getting-started`.
Let's try to push the image to Docker Hub.
1. In the command line, run the following commmand:
```console
docker push docker/getting-started
```
You'll see an error like this:
```console
$ docker push docker/getting-started
@ -47,13 +54,17 @@ In the following image, you can see an example Docker command from Docker Hub. T
An image does not exist locally with the tag: docker/getting-started
```
Why did it fail? The push command was looking for an image named `docker/getting-started`, but
didn't find one. If you run `docker image ls`, you won't see one either.
This failure is expected because the image isn't tagged correctly yet.
Docker is looking for an image name `docker/getting started`, but your
local image is still named `getting-started`.
To fix this, you need to tag your existing image you've built to give it another name.
You can confirm this by running:
2. Sign in to Docker Hub using the command `docker login -u YOUR-USER-NAME`.
```console
docker image ls
```
2. To fix this, first sign in to Docker Hub using your Docker ID: `docker login YOUR-USER-NAME`.
3. Use the `docker tag` command to give the `getting-started` image a new name. Replace `YOUR-USER-NAME` with your Docker ID.
```console