added docker compose to all chapters

Chapter01/Dockerfile

@@ -0,0 +1,16 @@
+FROM python:3.12.3-slim
+
+RUN apt-get update -qq \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set environment variables
+ENV PIP_DISABLE_PIP_VERSION_CHECK 1
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV PYTHONUNBUFFERED 1
+
+WORKDIR /code
+
+COPY requirements.txt .
+RUN python -m pip install -r requirements.txt
+
+COPY . .

Chapter01/do.sh

@@ -0,0 +1,113 @@
+#!/bin/bash
+
+COLUMNS="`tput cols`"
+LINES="`tput lines`"
+BOLD=$(tput bold)
+NORMAL=$(tput sgr0)
+
+COMPOSE_FILES="-f docker-compose.yml"
+
+DOCKER_COMPOSE="docker compose ${COMPOSE_FILES}"
+
+# Game-specific commands:
+_requires() {
+    service="$1"
+    $DOCKER_COMPOSE ps -q $service &> /dev/null
+    if [[ "$?" == 1 ]]; then
+        echo "'$service' service is not running. Please run \`start\` first."
+        exit 1
+    fi
+}
+
+build() {
+    $DOCKER_COMPOSE build --force-rm "${@:3}"
+}
+
+compose() {
+    $DOCKER_COMPOSE "$@"
+}
+
+start() {
+    $DOCKER_COMPOSE up "$@"
+}
+
+stop() {
+    $DOCKER_COMPOSE down "$@"
+}
+
+shell() {
+    _requires web_run
+    exec -w /code/mysite web_run /bin/bash
+}
+
+migrate() {
+    _requires web_run
+    exec -w /code/mysite web_run ./manage.py migrate "$@"
+}
+
+makemigrations() {
+    _requires web_run
+    exec -w /code/mysite web_run python manage.py makemigrations "$@"
+}
+
+check() {
+    _requires web_run
+    exec -w /code/mysite web_run ./manage.py check
+}
+
+exec() {
+    $DOCKER_COMPOSE exec -e COLUMNS -e LINES "$@"
+}
+
+_usage() {
+    cat <<USAGE
+Convenience wrapper around docker compose.
+
+Usage:
+
+    ${BOLD}build${NORMAL} [<arg>]
+
+        Builds all the images (or the ones specified).
+
+
+    ${BOLD}exec${NORMAL} [<arg>]
+
+        Execute a command in a container
+
+    ${BOLD}compose${NORMAL}
+
+        Minimal wrapper around docker-compose, just ensures the correct config files are loaded.
+
+    ${BOLD}migrate${NORMAL} [<arg>]
+
+        Apply any unapplied django migrations
+
+    ${BOLD}makemigrations${NORMAL} [<arg>]
+
+        Create a new Django migration, using the given args
+
+    ${BOLD}check${NORMAL}
+
+        Validate django settings
+
+    ${BOLD}shell${NORMAL}
+
+        Opens a bash terminal in web_run
+
+    ${BOLD}start${NORMAL} [<arg>]
+
+        Start the django server (and dependent services)
+        You can pass `-d` for running detached.
+
+    ${BOLD}stop${NORMAL} [<arg>]
+
+        Stop the django server (and dependent services)
+
+USAGE
+}
+
+if [ "$1" == "" ]; then
+    _usage
+fi
+
+$*

Chapter01/docker-compose.yml

@@ -0,0 +1,17 @@
+services:
+  web:
+    build: .
+    volumes:
+      - .:/code
+  web_migrate:
+    extends:
+      service: web
+    command: python /code/mysite/manage.py migrate
+  web_run:
+    extends:
+      service: web
+    command: python /code/mysite/manage.py runserver 0.0.0.0:8000
+    ports:
+      - "8000:8000"
+    depends_on:
+      - web_migrate

Chapter02/Dockerfile

@@ -0,0 +1,16 @@
+FROM python:3.12.3-slim
+
+RUN apt-get update -qq \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set environment variables
+ENV PIP_DISABLE_PIP_VERSION_CHECK 1
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV PYTHONUNBUFFERED 1
+
+WORKDIR /code
+
+COPY requirements.txt .
+RUN python -m pip install -r requirements.txt
+
+COPY . .

Chapter02/do.sh

@@ -0,0 +1,113 @@
+#!/bin/bash
+
+COLUMNS="`tput cols`"
+LINES="`tput lines`"
+BOLD=$(tput bold)
+NORMAL=$(tput sgr0)
+
+COMPOSE_FILES="-f docker-compose.yml"
+
+DOCKER_COMPOSE="docker compose ${COMPOSE_FILES}"
+
+# Game-specific commands:
+_requires() {
+    service="$1"
+    $DOCKER_COMPOSE ps -q $service &> /dev/null
+    if [[ "$?" == 1 ]]; then
+        echo "'$service' service is not running. Please run \`start\` first."
+        exit 1
+    fi
+}
+
+build() {
+    $DOCKER_COMPOSE build --force-rm "${@:3}"
+}
+
+compose() {
+    $DOCKER_COMPOSE "$@"
+}
+
+start() {
+    $DOCKER_COMPOSE up "$@"
+}
+
+stop() {
+    $DOCKER_COMPOSE down "$@"
+}
+
+shell() {
+    _requires web_run
+    exec -w /code/mysite web_run /bin/bash
+}
+
+migrate() {
+    _requires web_run
+    exec -w /code/mysite web_run ./manage.py migrate "$@"
+}
+
+makemigrations() {
+    _requires web_run
+    exec -w /code/mysite web_run python manage.py makemigrations "$@"
+}
+
+check() {
+    _requires web_run
+    exec -w /code/mysite web_run ./manage.py check
+}
+
+exec() {
+    $DOCKER_COMPOSE exec -e COLUMNS -e LINES "$@"
+}
+
+_usage() {
+    cat <<USAGE
+Convenience wrapper around docker compose.
+
+Usage:
+
+    ${BOLD}build${NORMAL} [<arg>]
+
+        Builds all the images (or the ones specified).
+
+
+    ${BOLD}exec${NORMAL} [<arg>]
+
+        Execute a command in a container
+
+    ${BOLD}compose${NORMAL}
+
+        Minimal wrapper around docker-compose, just ensures the correct config files are loaded.
+
+    ${BOLD}migrate${NORMAL} [<arg>]
+
+        Apply any unapplied django migrations
+
+    ${BOLD}makemigrations${NORMAL} [<arg>]
+
+        Create a new Django migration, using the given args
+
+    ${BOLD}check${NORMAL}
+
+        Validate django settings
+
+    ${BOLD}shell${NORMAL}
+
+        Opens a bash terminal in web_run
+
+    ${BOLD}start${NORMAL} [<arg>]
+
+        Start the django server (and dependent services)
+        You can pass `-d` for running detached.
+
+    ${BOLD}stop${NORMAL} [<arg>]
+
+        Stop the django server (and dependent services)
+
+USAGE
+}
+
+if [ "$1" == "" ]; then
+    _usage
+fi
+
+$*

Chapter02/docker-compose.yml

@@ -0,0 +1,19 @@
+services:
+  web:
+    build: .
+    env_file:
+      - .env
+    volumes:
+      - .:/code
+  web_migrate:
+    extends:
+      service: web
+    command: python /code/mysite/manage.py migrate
+  web_run:
+    extends:
+      service: web
+    command: python /code/mysite/manage.py runserver 0.0.0.0:8000
+    ports:
+      - "8000:8000"
+    depends_on:
+      - web_migrate

Chapter03/Dockerfile

@@ -0,0 +1,17 @@
+FROM python:3.12.3-slim
+
+RUN apt-get update -qq \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set environment variables
+ENV PIP_DISABLE_PIP_VERSION_CHECK 1
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV PYTHONUNBUFFERED 1
+
+WORKDIR /code
+
+COPY requirements.txt .
+RUN python -m pip install -r requirements.txt
+RUN python -m pip install psycopg[binary]
+
+COPY . .