Add Chainlit docker-based example (#235)

* remove old dockerfiles

* add docker-based example

* add note to chainlit, reformat others

doc/apps/chainlit.md

@@ -22,6 +22,11 @@ To deploy a Chainlit application in Ploomber Cloud you need:
 - Your application file (`app.py`)
 - A dependencies file (`requirements.txt`)
 
+```{note}
+By default applications run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
+[Here](https://github.com/ploomber/doc/tree/main/examples/chainlit/docker-based) is a sample Docker-based `Chainlit` application.
+```
+
 ## Testing locally
 
 To test your app, you can use this command:

doc/apps/dash.md

@@ -17,8 +17,11 @@ To deploy a [Dash](https://dash.plotly.com/) application you need a [Ploomber Cl
 1. Your application file (`app.py`)
 2. A dependencies file (`requirements.txt`)
 
-Note that the application will run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
+
+```{note}
+By default applications run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
 [Here](https://github.com/ploomber/doc/tree/main/examples/dash/docker-based) is a sample Docker-based `Dash` application.
+```
 
 ## Required files
 

doc/apps/panel.md

@@ -20,8 +20,11 @@ Once you have an account, you need at least two files:
 1. Your application file (`app.py`)
 2. A dependencies file (`requirements.txt`)
 
-Note that the application will run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
+
+```{note}
+By default applications run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
 [Here](https://github.com/ploomber/doc/tree/main/examples/panel/docker-based) is a sample Docker-based `Panel` application.
+```
 
 
 ## Application file

doc/apps/solara.md

@@ -21,8 +21,11 @@ To deploy a Solara app you need at least two files zipped up:
 1. Your application file (`app.py`)
 2. A dependencies file (`requirements.txt`)
 
-Note that the application will run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
+
+```{note}
+By default applications run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
 [Here](https://github.com/ploomber/doc/tree/main/examples/solara/docker-based) is a sample Docker-based `Solara` application.
+```
 
 
 ```{note}

doc/apps/streamlit.md

@@ -20,8 +20,10 @@ To deploy a Streamlit app you need at least two files:
 1. Your application file (`app.py`)
 2. A dependencies file (`requirements.txt`)
 
-Note that the application will run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
+```{note}
+By default applications run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
 [Here](https://github.com/ploomber/doc/tree/main/examples/streamlit/docker-based) is a sample Docker-based `Streamlit` application.
+```
 
 ## Application file
 

doc/apps/voila.md

@@ -23,8 +23,11 @@ To deploy an application you need two files:
 
 For information on how to write Voilà applications, [please check the documentation](https://voila.readthedocs.io/en/stable/).
 
-Note that the application will run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
+
+```{note}
+By default applications run with Python 3.11. Refer to this [section](../faq/faq.md#customize-deployment) for customized deployments.
 [Here](https://github.com/ploomber/doc/tree/main/examples/voila/docker-based) is a sample Docker-based `Voila` application.
+```
 
 ## Dependencies
 

examples/chainlit/docker-based/Dockerfile

@@ -0,0 +1,11 @@
+FROM python:3.11-slim-bookworm
+
+WORKDIR /srv
+
+COPY requirements.txt /srv/
+COPY . /srv
+
+RUN pip install chainlit --no-cache-dir
+RUN pip install -r requirements.txt --no-cache-dir
+
+ENTRYPOINT ["chainlit", "run", "app.py", "--host=0.0.0.0", "--port=80", "--headless"]

examples/chainlit/docker-based/README.md

@@ -0,0 +1,5 @@
+# Basic app
+
+A basic Chainlit application to get started.
+
+![](screenshot.webp)

examples/chainlit/docker-based/app.py

@@ -0,0 +1,10 @@
+import chainlit as cl
+
+
+@cl.on_message  # this function will be called every time a user inputs a message in the UI
+async def main(message: str):
+    # this is an intermediate step
+    await cl.Message(author="Tool 1", content=f"Response from tool1").send()
+
+    # send back the final answer
+    await cl.Message(content=f"This is a Docker-based Chainlit app.").send()

examples/chainlit/docker-based/chainlit.md

@@ -0,0 +1 @@
+This app is hosted in [Ploomber Cloud!](https://ploomber.io/)

examples/chainlit/docker-based/requirements.txt

@@ -0,0 +1 @@
+chainlit