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Update docker init topic (#17154) 

* update docker init

* feedback

Signed-off-by: Craig Osterhout <craig.osterhout@docker.com>

* feedback - node prompts

Signed-off-by: Craig Osterhout <craig.osterhout@docker.com>

---------

Signed-off-by: Craig Osterhout <craig.osterhout@docker.com>
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@ -7,7 +7,7 @@ long: |-
* .dockerignore * .dockerignore
* Dockerfile * Dockerfile
* docker-compose.yaml * compose.yaml
If any of the files already exist, a prompt appears and provides a warning as well as giving you the option to overwrite all the files. If any of the files already exist, a prompt appears and provides a warning as well as giving you the option to overwrite all the files.
@ -20,13 +20,15 @@ long: |-
After running `docker init`, you can choose one of the following templates: After running `docker init`, you can choose one of the following templates:
* Go: Suitable for a Go server application. * Go: Suitable for a Go server application.
* Python: Suitable for a Python server application.
* Node: Suitable for a Node server application.
* Other: General purpose starting point for containerizing your application. * Other: General purpose starting point for containerizing your application.
After `docker init` has completed, you must modify the created files and tailor them to your project. Visit the following topics to learn more about the files: After `docker init` has completed, you may need to modify the created files and tailor them to your project. Visit the following topics to learn more about the files:
* [.dockerignore](../../../engine/reference/builder.md#dockerignore-file) * [.dockerignore](../../../engine/reference/builder.md#dockerignore-file)
* [Dockerfile](../../../engine/reference/builder.md) * [Dockerfile](../../../engine/reference/builder.md)
* [docker-compose.yaml](../../../compose/compose-file/03-compose-file.md) * [compose.yaml](../../../compose/compose-file/03-compose-file.md)
usage: docker init [OPTIONS] usage: docker init [OPTIONS]
pname: docker pname: docker
@ -48,9 +50,9 @@ experimentalcli: false
kubernetes: false kubernetes: false
swarm: false swarm: false
examples: |- examples: |-
### Example of selecting Other ### Example of running `docker init`
The following example runs `docker init` and walks through the options after selecting `Other`. The following example shows the initial menu after running `docker init`. See the additional examples to view the options for each language or framework.
```console ```console
$ docker init $ docker init
@ -60,23 +62,101 @@ examples: |-
This utility will walk you through creating the following files with sensible defaults for your project: This utility will walk you through creating the following files with sensible defaults for your project:
- .dockerignore - .dockerignore
- Dockerfile - Dockerfile
- docker-compose.yaml - compose.yaml
Let's get started! Let's get started!
? What application platform does your project use? [Use arrows to move, type to filter] ? What application platform does your project use? [Use arrows to move, type to filter]
> Go - suitable for a Go server application > Go - (detected) suitable for a Go server application
Python - suitable for a Python server application
Node - suitable for a Node server application
Other - general purpose starting point for containerizing your application Other - general purpose starting point for containerizing your application
Don't see something you need? Let us know! Don't see something you need? Let us know!
Quit Quit
``` ```
The following appears after selecting `Other`. ### Example of selecting Go
The following example shows the prompts that appear after selecting `Go` and example input.
```console ```console
? What application platform does your project use? Go
? What version of Go do you want to use? 1.20
? What's the relative directory (with a leading .) of your main package? .
? What port does your server listen on? 3333
CREATED: .dockerignore CREATED: .dockerignore
CREATED: Dockerfile CREATED: Dockerfile
CREATED: docker-compose.yaml CREATED: compose.yaml
✔ Your Docker files are ready!
Take a moment to review them and tailor them to your application.
When you're ready, start your application by running: docker compose up --build
Your application will be available at http://localhost:3333
```
### Example of selecting Python
The following example shows the prompts that appear after selecting `Python` and example input.
```console
? What application platform does your project use? Python
? What version of Python do you want to use? 3.8
? What port do you want your app to listen on? 8000
? What is the command to run your app (e.g., gunicorn 'myapp.example:app' --bind=0.0.0.0:8000)? python ./app.py
CREATED: .dockerignore
CREATED: Dockerfile
CREATED: compose.yaml
✔ Your Docker files are ready!
Take a moment to review them and tailor them to your application.
When you're ready, start your application by running: docker compose up --build
Your application will be available at http://localhost:8000
```
### Example of selecting Node
The following example shows the prompts that appear after selecting `Node` and example input.
```console
? What application platform does your project use? Node
? What version of Node do you want to use? 18
? Which package manager do you want to use? yarn
? Do you want to run "yarn run build" before starting your server? Yes
? What directory is your build output to? (comma-separate if multiple) output
? What command do you want to use to start the app? node index.js
? What port does your server listen on? 8000
CREATED: .dockerignore
CREATED: Dockerfile
CREATED: compose.yaml
✔ Your Docker files are ready!
Take a moment to review them and tailor them to your application.
When you're ready, start your application by running: docker compose up --build
Your application will be available at http://localhost:8000
```
### Example of selecting Other
The following example shows the output after selecting `Other`.
```console
? What application platform does your project use? Other
CREATED: .dockerignore
CREATED: Dockerfile
CREATED: compose.yaml
✔ Your Docker files are ready! ✔ Your Docker files are ready!
@ -85,66 +165,3 @@ examples: |-
When you're ready, start your application by running: docker compose up --build When you're ready, start your application by running: docker compose up --build
``` ```
### Example of selecting Go
The following example runs `docker init` and walks through the options after selecting `Go`.
```console
$ docker init
Welcome to the Docker Init CLI!
This utility will walk you through creating the following files with sensible defaults for your project:
- .dockerignore
- Dockerfile
- docker-compose.yaml
Let's get started!
? What application platform does your project use? [Use arrows to move, type to filter]
> Go - (detected) suitable for a Go server application
Other - general purpose starting point for containerizing your application
Don't see something you need? Let us know!
Quit
```
The following appears after selecting `Go`.
```console
? What application platform does your project use? Go
? What version of Go do you want to use? (1.20)
```
The following appears after selecting the default `1.20`.
```console
? What version of Go do you want to use? 1.20
? What's the relative directory (with a leading .) of your main package? (.)
```
The following appears after selecting the default `.`.
```console
? What's the relative directory (with a leading .) of your main package? .
? What port does your server listen on? (3333)
```
The following appears after selecting the default `3333`.
```console
? What port does your server listen on? 3333
CREATED: .dockerignore
CREATED: Dockerfile
CREATED: docker-compose.yaml
✔ Your Docker files are ready!
Take a moment to review them and tailor them to your application.
When you're ready, start your application by running: docker compose up --build -d
Your application will be available at http://localhost:3333
To stop your application, run: docker compose down
```