Creating the project bootstrap

.editorconfig

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+# editorconfig.org
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.yml]
+indent_size = 2
+
+[*.yaml]
+indent_size = 2
+
+[Makefile]
+indent_style = tab
+indent_size = 4

.flake8

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+[flake8]
+max-line-length = 120

.gitignore

@@ -1,3 +1,5 @@
+.vscode
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]

Dockerfile

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+FROM python:3.8
+
+ADD . /app
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y \
+    bash \
+    default-libmysqlclient-dev \
+    build-essential \
+    && pip install --no-cache-dir -r /app/requirements.txt
+
+CMD ["/app/commands/run-prod.sh"]

Makefile

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+all: help
+
+help:
+	@echo "―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――"
+	@echo "ℹ️ Available commands ℹ️"
+	@echo "―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――"
+	@echo "⭐️ help            : Show this message"
+	@echo "⭐️ clean           : Removes all python cache and temporary files"
+	@echo "⭐️ run             : Runs the application using docker-compose"
+	@echo "―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――"
+
+clean:
+	@find . -name '*.pyc' -exec rm -f {} +
+	@find . -name '*.pyo' -exec rm -f {} +
+	@find . -name '*~' -exec rm -f {} +
+	@find . -name '__pycache__' -exec rm -fr {} +
+
+
+run:
+	@docker-compose up

README.md

@@ -1 +1,2 @@
-# minesweeper-backend
+# Minesweeper (backend)
+

app/asgi.py

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+"""
+ASGI config for app project.
+
+It exposes the ASGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.1/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "app.settings")
+
+application = get_asgi_application()

app/settings.py

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+import os
+
+from pathlib import Path
+
+# Build paths inside the project like this: BASE_DIR / 'subdir'.
+BASE_DIR = Path(__file__).resolve().parent.parent
+
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = os.getenv("SECRET_KEY", "changeme")
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = os.getenv("DEBUG", "0") in ["1", "true"]
+
+ALLOWED_HOSTS = os.getenv("ALLOWED_HOSTS", "127.0.0.1,localhost").split(",")
+
+# Application definition
+INSTALLED_APPS = [
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+]
+
+MIDDLEWARE = [
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
+]
+
+ROOT_URLCONF = "app.urls"
+
+TEMPLATES = [
+    {
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = "app.wsgi.application"
+
+
+# Database
+# https://docs.djangoproject.com/en/3.1/ref/settings/#databases
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.mysql",
+        "NAME": os.getenv("DB_NAME"),
+        "USER": os.getenv("DB_USER"),
+        "PASSWORD": os.getenv("DB_PASS"),
+        "HOST": os.getenv("DB_HOST"),
+        "PORT": os.getenv("DB_PORT"),
+        "OPTIONS": {
+            "charset": "utf8mb4",
+        },
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/3.1/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/3.1/topics/i18n/
+
+LANGUAGE_CODE = "en-us"
+
+TIME_ZONE = "UTC"
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/3.1/howto/static-files/
+
+STATIC_URL = "/static/"

app/urls.py

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+"""app URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/3.1/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  path('', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.urls import include, path
+    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
+"""
+from django.contrib import admin
+from django.urls import path
+
+urlpatterns = [
+    path("admin/", admin.site.urls),
+]

app/wsgi.py

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+"""
+WSGI config for app project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.1/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "app.settings")
+
+application = get_wsgi_application()

commands/run-prod.sh

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+#!/bin/bash
+uwsgi --module app.wsgi --http 0.0.0.0:8000 --enable-threads --thunder-lock

commands/run.sh

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+#!/bin/bash
+/commands/wait-for-it.sh "${DB_HOST}:${DB_PORT}" --timeout=90 --strict -- python manage.py runserver 0.0.0.0:8000

commands/wait-for-it.sh

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+#!/bin/bash
+#   Use this script to test if a given TCP host/port are available
+
+cmdname=$(basename $0)
+
+echoerr() { if [[ $QUIET -ne 1 ]]; then echo "$@" 1>&2; fi }
+
+usage()
+{
+    cat << USAGE >&2
+Usage:
+    $cmdname host:port [-s] [-t timeout] [-- command args]
+    -h HOST | --host=HOST       Host or IP under test
+    -p PORT | --port=PORT       TCP port under test
+                                Alternatively, you specify the host and port as host:port
+    -s | --strict               Only execute subcommand if the test succeeds
+    -q | --quiet                Don't output any status messages
+    -t TIMEOUT | --timeout=TIMEOUT
+                                Timeout in seconds, zero for no timeout
+    -- COMMAND ARGS             Execute command with args after the test finishes
+USAGE
+    exit 1
+}
+
+wait_for()
+{
+    if [[ $TIMEOUT -gt 0 ]]; then
+        echoerr "$cmdname: waiting $TIMEOUT seconds for $HOST:$PORT"
+    else
+        echoerr "$cmdname: waiting for $HOST:$PORT without a timeout"
+    fi
+    start_ts=$(date +%s)
+    while :
+    do
+        if [[ $ISBUSY -eq 1 ]]; then
+            nc -z $HOST $PORT
+            result=$?
+        else
+            (echo > /dev/tcp/$HOST/$PORT) >/dev/null 2>&1
+            result=$?
+        fi
+        if [[ $result -eq 0 ]]; then
+            end_ts=$(date +%s)
+            echoerr "$cmdname: $HOST:$PORT is available after $((end_ts - start_ts)) seconds"
+            break
+        fi
+        sleep 1
+    done
+    return $result
+}
+
+wait_for_wrapper()
+{
+    # In order to support SIGINT during timeout: http://unix.stackexchange.com/a/57692
+    if [[ $QUIET -eq 1 ]]; then
+        timeout $BUSYTIMEFLAG $TIMEOUT $0 --quiet --child --host=$HOST --port=$PORT --timeout=$TIMEOUT &
+    else
+        timeout $BUSYTIMEFLAG $TIMEOUT $0 --child --host=$HOST --port=$PORT --timeout=$TIMEOUT &
+    fi
+    PID=$!
+    trap "kill -INT -$PID" INT
+    wait $PID
+    RESULT=$?
+    if [[ $RESULT -ne 0 ]]; then
+        echoerr "$cmdname: timeout occurred after waiting $TIMEOUT seconds for $HOST:$PORT"
+    fi
+    return $RESULT
+}
+
+# process arguments
+while [[ $# -gt 0 ]]
+do
+    case "$1" in
+        *:* )
+        hostport=(${1//:/ })
+        HOST=${hostport[0]}
+        PORT=${hostport[1]}
+        shift 1
+        ;;
+        --child)
+        CHILD=1
+        shift 1
+        ;;
+        -q | --quiet)
+        QUIET=1
+        shift 1
+        ;;
+        -s | --strict)
+        STRICT=1
+        shift 1
+        ;;
+        -h)
+        HOST="$2"
+        if [[ $HOST == "" ]]; then break; fi
+        shift 2
+        ;;
+        --host=*)
+        HOST="${1#*=}"
+        shift 1
+        ;;
+        -p)
+        PORT="$2"
+        if [[ $PORT == "" ]]; then break; fi
+        shift 2
+        ;;
+        --port=*)
+        PORT="${1#*=}"
+        shift 1
+        ;;
+        -t)
+        TIMEOUT="$2"
+        if [[ $TIMEOUT == "" ]]; then break; fi
+        shift 2
+        ;;
+        --timeout=*)
+        TIMEOUT="${1#*=}"
+        shift 1
+        ;;
+        --)
+        shift
+        CLI=("$@")
+        break
+        ;;
+        --help)
+        usage
+        ;;
+        *)
+        echoerr "Unknown argument: $1"
+        usage
+        ;;
+    esac
+done
+
+if [[ "$HOST" == "" || "$PORT" == "" ]]; then
+    echoerr "Error: you need to provide a host and port to test."
+    usage
+fi
+
+TIMEOUT=${TIMEOUT:-15}
+STRICT=${STRICT:-0}
+CHILD=${CHILD:-0}
+QUIET=${QUIET:-0}
+
+# check to see if timeout is from busybox?
+# check to see if timeout is from busybox?
+TIMEOUT_PATH=$(realpath $(which timeout))
+if [[ $TIMEOUT_PATH =~ "busybox" ]]; then
+        ISBUSY=1
+        BUSYTIMEFLAG="-t"
+else
+        ISBUSY=0
+        BUSYTIMEFLAG=""
+fi
+
+if [[ $CHILD -gt 0 ]]; then
+    wait_for
+    RESULT=$?
+    exit $RESULT
+else
+    if [[ $TIMEOUT -gt 0 ]]; then
+        wait_for_wrapper
+        RESULT=$?
+    else
+        wait_for
+        RESULT=$?
+    fi
+fi
+
+if [[ $CLI != "" ]]; then
+    if [[ $RESULT -ne 0 && $STRICT -eq 1 ]]; then
+        echoerr "$cmdname: strict mode, refusing to execute subprocess"
+        exit $RESULT
+    fi
+    exec "${CLI[@]}"
+else
+    exit $RESULT
+fi

docker-compose.yml

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+version: "3"
+services:
+  app:
+    build: .
+    container_name: mines-app
+    volumes:
+      - ./commands:/commands
+      - .:/app
+    command: /app/commands/run.sh
+    environment:
+      - DB_USER=root
+      - DB_PASS=minesweeper
+      - DB_HOST=db
+      - DB_NAME=minesweeper
+      - DB_PORT=3306
+      - DEBUG=1
+    ports:
+      - 8000:8000
+    links:
+      - db
+  db:
+    image: mysql:8
+    container_name: mines-db
+    command: --default-authentication-plugin=mysql_native_password
+    ports:
+      - 3306:3306
+    environment:
+      - MYSQL_ROOT_PASSWORD=minesweeper
+      - MYSQL_DATABASE=minesweeper

manage.py

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+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    """Run administrative tasks."""
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "app.settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
+
+
+if __name__ == "__main__":
+    main()

requirements.txt

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+#
+# This file is autogenerated by pip-compile
+# To update, run:
+#
+#    pip-compile requirements.txt
+#
+appdirs==1.4.4            # via -r requirements.txt, black
+asgiref==3.3.0            # via -r requirements.txt, django
+black==20.8b1             # via -r requirements.txt
+click==7.1.2              # via -r requirements.txt, black
+django-dbml==0.3.5        # via -r requirements.txt
+django-mysql==3.9.0       # via -r requirements.txt
+django==3.1.3             # via -r requirements.txt, django-mysql, djangorestframework
+djangorestframework==3.12.1  # via -r requirements.txt
+gevent==20.9.0            # via -r requirements.txt
+greenlet==0.4.17          # via -r requirements.txt, gevent
+mypy-extensions==0.4.3    # via -r requirements.txt, black
+mysqlclient==2.0.1        # via -r requirements.txt
+pathspec==0.8.0           # via -r requirements.txt, black
+pendulum==2.1.2           # via -r requirements.txt
+python-dateutil==2.8.1    # via -r requirements.txt, pendulum
+pytz==2020.4              # via -r requirements.txt, django
+pytzdata==2020.1          # via -r requirements.txt, pendulum
+regex==2020.10.28         # via -r requirements.txt, black
+six==1.15.0               # via -r requirements.txt, python-dateutil
+sqlparse==0.4.1           # via -r requirements.txt, django
+toml==0.10.2              # via -r requirements.txt, black
+typed-ast==1.4.1          # via -r requirements.txt, black
+typing-extensions==3.7.4.3  # via -r requirements.txt, black
+uwsgi==2.0.19.1           # via -r requirements.txt
+zope.event==4.5.0         # via -r requirements.txt, gevent
+zope.interface==5.1.2     # via -r requirements.txt, gevent
+flake8
+
+# The following packages are considered to be unsafe in a requirements file:
+# setuptools