What is the correct way of pulling the latest changes via docker?

Please write step by step commands.

This is how i do it:

1. docker build -t dashboard:latest -t dashboard:v2 dashboard/.

2. docker rm -f dashboard-latest

3. docker run --name dashboard-latest -d -p 8081:80 dashboard

So...

1. Build latest changes
2. Remove the old container
3. Pull those latest changes

---

Is there a better way? Less commands? Is this the right way to do it?

Sometimes the changes dont get updated so i waste hours of time trying to figure out if i fucked up the commands, or order of commands, or if its some caching problem etc.

Teach me the right way once and for all.

@chatgpt show an example docker compose file for a flask service

@retoor

Sure, here is an example Docker Compose file for a Flask service:

```yaml
version: '3'
services:
flask-app:
build: .
ports:
- "5000:5000"
volumes:
- .:/app
environment:
- FLASK_ENV=development
```

This Docker Compose file will build a Docker container for your Flask service, expose it on port 5000, and mount the current directory as a volume to allow for live reloading of the code. The `FLASK_ENV` environment variable is also set to `development`.

The contents of the `Dockerfile` used to build the image could look like this:

```Dockerfile
FROM python:3.9

WORKDIR /app

COPY requirements.txt .

RUN pip install -r requirements.txt

COPY . .

CMD ["flask", "run", "--host=0.0.0.0"]
```

This `Dockerfile` just installs the Python dependencies listed in `requirements.txt`, copies the entire local directory to the container's `/app` directory, and then starts the Flask server with the `flask run` command.

@b2plane - I find most commonly, if you’re using ‘:latest’ as a tag, the server might not get the latest changes. If you explicitly tag your images with a build number, and use that tag instead of :latest you might find it helpful

You can also do a "docker run --rm ..."
That will build and run your container for you and remove it when stopped.

@Anchor
Here are the step-by-step instructions to pull the latest changes via Docker:

1. Open your terminal or command prompt.

2. Run the command `sudo docker pull [image_name]:[tag]`, where `[image_name]` is the name of the Docker image you want to pull, and `[tag]` is the specific version or tag you want to pull. For example, if you want to pull the latest version of the Ubuntu image, you would use the command `sudo docker pull ubuntu:latest`.

3. Wait for the Docker image to download. Depending on the size of the image and your internet connection, this can take a few minutes.

4. Once the Docker image has been downloaded, you can run it by using the command `sudo docker run [image_name]:[tag]`. For example, if you want to run the Ubuntu image you just downloaded, you would use the command `sudo docker run ubuntu:latest`.

5. If you need to update the image again in the future, simply repeat steps 2-4.

Note: If you want to update an existing Docker container with the latest chang

es, you can use the `docker-compose pull` command. This will pull the latest changes for all images defined in your `docker-compose.yaml` file.

But better just going
docker-compose down && docker-compose pull && docker-compose up -d

^_^

Or using any commands u wish, just add them into yaml makefile
https://taskfile.dev/

docker-compose up --force-recreate --build

even shorter version, that combines building with arguments, destroying previous containers, recreating new ones

`-d` argument is optional for running in background