Flask Docker Gunicorn Sample

Sample Docker setup using Flask, Gunicorn, and Nginx.

Setup

You'll need to install Docker and Docker Compose if you haven't.

• Install Docker: https://docs.docker.com/engine/installation/
• Install Docker Compose: https://docs.docker.com/compose/install/

Build

$ docker-compose build

Run

With the flask server:

$ docker-compose -f docker-compose.local.yml up -d --force-recreate

With nginx and gunicorn:

$ docker-compose up -d --force-recreate

...what?

$ docker-compose  up --help
Builds, (re)creates, starts, and attaches to containers for a service.

Unless they are already running, this command also starts any linked services.

The `docker-compose up` command aggregates the output of each container. When
the command exits, all containers are stopped. Running `docker-compose up -d`
starts the containers in the background and leaves them running.

If there are existing containers for a service, and the service's configuration
or image was changed after the container's creation, `docker-compose up` picks
up the changes by stopping and recreating the containers (preserving mounted
volumes). To prevent Compose from picking up changes, use the `--no-recreate`
flag.

If you want to force Compose to stop and recreate all containers, use the
`--force-recreate` flag.

Usage: up [options] [SERVICE...]

Options:
    --allow-insecure-ssl   Deprecated - no effect.
    -d                     Detached mode: Run containers in the background,
                           print new container names.
    --no-color             Produce monochrome output.
    --no-deps              Don't start linked services.
    --force-recreate       Recreate containers even if their configuration and
                           image haven't changed. Incompatible with --no-recreate.
    --no-recreate          If containers already exist, don't recreate them.
                           Incompatible with --force-recreate.
    --no-build             Don't build an image, even if it's missing
    -t, --timeout TIMEOUT  Use this timeout in seconds for container shutdown
                           when attached or when containers are already
                           running. (default: 10)