如何为 strealit 应用程序创建 Dockerfile

Question

I am aiming to deploy a web-app written with Sreamlit,

I can run this on my local machine by running streamlit run Home.py in my command line.

However, I'm not sure how to create the docker file.

Any advice?

Answer 1

Try something like this.

FROM python:3.7

# Expose port you want your app on
EXPOSE 8080

# Upgrade pip and install requirements
COPY requirements.txt requirements.txt
RUN pip install -U pip
RUN pip install -r requirements.txt

# Copy app code and set working directory
COPY . .
WORKDIR /app

# Run
ENTRYPOINT [“streamlit”, “run”, “Home.py”, “–server.port=8080”, “–server.address=0.0.0.0”]

Answer 2

This is a docker file that would work for you:

FROM python:3.9
WORKDIR /app
COPY requirements.txt ./requirements.txt
RUN pip3 install -r requirements.txt
COPY . .
EXPOSE 8201
ENTRYPOINT ["streamlit", "run"]
CMD ["app/Home.py"]

This is a series of instructions and each instruction creates a layer. The base image here is python:3.9 where you create a directory called /app , then copy and install everything in your requirements.txt . Then copy your entire folder over and finally specify the command to run within the container. When you run the container it will be exposed on port 8201 .

Build and run the container with the following if you are going for a local set up. Run the commands from within the directory your Dockerfile is.

docker build -f Dockerfile -t app:latest .
docker run -p 8201:8201 app:latest

Now you will be able to access the container on your browser at http://localhost:8201/

Answer 3

In order to Dockerise your app you need two files:

1. Dockerfile : describes the image structure,
2. docker-compose.yml : describes how to make a container from that image ( Dockerfile )

The answer of Javier Roger is providing a very minimal Dockerfile that seems to work:

FROM python:3.7

# Expose port you want your app on
EXPOSE 8080

# Upgrade pip and install requirements
COPY requirements.txt requirements.txt
RUN pip install -U pip
RUN pip install -r requirements.txt

# Copy app code and set working directory
COPY . .
WORKDIR /app

# Run
ENTRYPOINT [“streamlit”, “run”, “Home.py”, “–server.port=8080”, “–server.address=0.0.0.0”]

If you combine this answer with the following docker-compose then you have a nice container containing your app:

services:
  streamlit:
    container_name: "The name you want to have your container"
    build:
      dockerfile: ./Dockerfile
      context: ./
    ports:
      - 'The port you want your app to have:8080'

Please note that both Dockerfile and docker-compose.yml should be placed in the root of your app.

To run the app just cd to the root dir and run:

docker compose up -d

if docker compose is not installed please use:

 sudo apt-get update
 sudo apt-get install docker-compose-plugin

In case that you cannot install it so easily use this link