Docker přesvědčen, aby používal Postgres

Vyrobeno nové `mamweb/settings_docker.py` jako kříženec mezi `_local` a `_test`. Úměrně tomu upraveno `mamweb/settings.py`, aby ho používalo při volání z kontejneru.`docker_entrypoint.sh` počká na start konejneru s Postgresem, zkontroluje existenci testdat (případně je vygeneruje) a spustí command specifikovaný v compose, tedy spustí webserver.

Dockerfile

@@ -1,7 +1,7 @@
 FROM python:3.9.18-slim-bullseye
 
 # set work directory
-WORKDIR /usr/src
+WORKDIR /usr/mamweb-docker
 
 # set environment variables
 ENV PIP_DISABLE_PIP_VERSION_CHECK 1
@@ -13,7 +13,9 @@ RUN apt-get update && apt-get install -y \
     libpq-dev \
     gcc \
     locales \
-    imagemagick
+    imagemagick \
+    netcat \
+    postgresql-client
 RUN pip install --upgrade pip
 COPY ./requirements.txt .
 COPY ./constraints.txt .
@@ -22,15 +24,13 @@ RUN pip install -r requirements.txt
 # allow correct locales
 RUN sed -i '/cs_CZ.UTF-8/s/^# //g' /etc/locale.gen && \
     locale-gen
-ENV LANG cs_CZ.UTF-8 \
+ENV LANG cs_CZ.UTF-8
-    LANGUAGE en_US:en \
+ENV LANGUAGE en_US:en
-    LC_ALL cs_CZ.UTF-8
+ENV LC_ALL cs_CZ.UTF-8
 
 # copy project
 COPY . .
 
-# create test data
+# create test data once db is ready
-RUN ./manage.py testdata
+RUN chmod +x /usr/mamweb-docker/docker_entrypoint.sh
-RUN ./manage.py loaddata data/*
+ENTRYPOINT ["/usr/mamweb-docker/docker_entrypoint.sh"]
-    # make/sync_prod_flatpages && \
-    # ./manage.py load_org_permissions deploy_v2/admin_org_prava.json

docker-compose.yml

@@ -1,25 +1,23 @@
 
-# TODO:
-# - [ ] Pořídit vhodný django settings.py pro docker, aby to používalo postgress
 services:
   web:
     build: .
     command: python manage.py runserver 0.0.0.0:8000
     volumes:
-      - .:/usr/src
+      - .:/usr/mamweb-docker
     ports:
       - 8000:8000
-    # env_file:
+    depends_on:
-    #   - ./.env.dev
+      - db
 
-#   db:
+  db:
-#     image: postgres:13-bullseye
+    image: postgres:13-bullseye
-#     volumes:
+    volumes:
-#       - postgres_data:/var/lib/postgresql/data/
+      - postgres_data:/var/lib/postgresql/data/
-#     environment:
+    environment:
-#       - POSTGRES_USER=hello_django
+      - POSTGRES_USER=mam-web
-#       - POSTGRES_PASSWORD=hello_django
+      - POSTGRES_PASSWORD=RoEGG5g7&b  # Random generated string corresponding with Django settings
-#       - POSTGRES_DB=hello_django_dev
+      - POSTGRES_DB=mam_docker
 
-# volumes:
+volumes:
-#   postgres_data:
+  postgres_data:

docker_entrypoint.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+echo "Waiting for Postgres..."
+
+while ! nc -z "db" "5432"; do
+    sleep 0.1
+done
+
+echo "PostgreSQL started"
+
+PGPASSWORD="RoEGG5g7&b" # Random generated, corresponds to the one in docker-compose.yml
+if psql "postgresql://mam-web:$PGPASSWORD@db:5432/mam_docker" -t -c '\dt' | cut -d \| -f 2 | grep -qw "seminar_cisla"; then
+    echo "\nExistuje tabulka 'seminar_cisla' v db, testdata pravděpodobně byla vygenerována.\n"
+else
+    python ./manage.py testdata
+    python ./manage.py loaddata data/*
+fi
+
+exec "$@"

mamweb/settings.py

@@ -14,6 +14,9 @@ if "mamweb-test" in os.path.abspath(__file__):
 elif "mamweb-prod" in os.path.abspath(__file__):
     from .settings_prod import *
 
+elif "mamweb-docker" in os.path.abspath(__file__):
+    from .settings_docker import *
+
 else:
     from .settings_local import *
 

mamweb/settings_docker.py

@@ -0,0 +1,117 @@
+# -*- coding: utf-8 -*-
+
+import os.path
+
+#
+# Docker nastaveni settings.py
+#
+# Pro vyber tohoto nastaveni muzete pouzit tez:
+# DJANGO_SETTINGS_MODULE=mamweb.settings_docker ./manage.py ...
+#
+
+# Import common settings
+from .settings_common import * # zatim nutne, casem snad vyresime # noqa
+
+MIDDLEWARE += (
+	'debug_toolbar.middleware.DebugToolbarMiddleware',
+	)
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/1.7/howto/deployment/checklist/
+
+INSTALLED_APPS += (
+	'debug_toolbar',
+	'django_extensions',
+	)
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'EZfSzeuDCycKr5ZjiCQ^45ZqFU@8Ke#YDwn9ThqerfEpu^yV#p'
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+INTERNAL_IPS = ['127.0.0.1']
+
+TEMPLATES[0]['OPTIONS']['debug'] = True
+
+from ipaddress import ip_network
+ALLOWED_HOSTS = [str(ip) for ip in ip_network('192.168.0.0/16')]
+ALLOWED_HOSTS.append('127.0.0.1')
+ALLOWED_HOSTS.append('localhost')
+
+# Database
+# https://docs.djangoproject.com/en/1.7/ref/settings/#databases
+
+DATABASES = {
+	'default': {
+		'ENGINE': 'django.db.backends.postgresql_psycopg2',
+		'NAME': 'mam_docker',
+		'USER': 'mam-web',
+		'PASSWORD': 'RoEGG5g7&b',	# Random generated string corresponding with docker-compose
+		'TEST': {
+			'NAME': 'mam-docker-testdb',
+		},
+        "HOST": "db",
+        "PORT": "5432",
+	},
+}
+
+# import os
+# SERVER_EMAIL = 'mamweb-test-errors@mam.mff.cuni.cz'
+# ADMINS = [
+# 	('M&M ERRORs', 'mam-errors@mam.mff.cuni.cz'),
+# ]
+
+# SECURITY: only send sensitive cookies via HTTPS
+# SESSION_COOKIE_SECURE = True
+# CSRF_COOKIE_SECURE = True
+
+# LOGGING
+LOGGING = {
+	'version': 1,
+	'disable_existing_loggers': True,
+	'filters': {
+		'require_debug_false': {
+			'()': 'django.utils.log.RequireDebugFalse'
+		}
+	},
+	'formatters': {
+		'simple': {
+			'format': '%(asctime)s - %(name)s - %(levelname)-8s - %(message)s',
+		},
+	},
+	'handlers': {
+		'dummy': {
+			'class': 'logging.NullHandler',
+		},
+		'console': {
+			'level': 'DEBUG',
+			'class': 'logging.StreamHandler',
+			'formatter': 'simple',
+		},
+	},
+	'loggers': {
+	# Vypisovani databazovych dotazu do konzole
+		#'django.db.backends': {
+		#    'level': 'DEBUG',
+		#    'handlers': ['console'],
+		#    'propagate': False,
+		#},
+		'werkzeug': {
+			'handlers': ['console'],
+			'level': 'DEBUG',
+			'propagate': True,
+		},
+		'': {
+			'handlers': ['console'],
+			'level': 'DEBUG',
+			'propagate': False,
+		},
+	},
+}
+
+# FILE_UPLOAD_PERMISSIONS = 0o440
+
+# Testování e-mailů
+EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
+SEND_EMAIL_NOTIFICATIONS = True
+LOCAL_TEST_PROD = "local"