Environment Variables and Docker standalone support (#21)

* Ignore .dist folder used by visual studio code

* Add example env file

* Added environment variables

* Ignore env file

* Added default name to be ytmanager instead

* Default to postgres

* Update example env for postgres instead of sqlite

* Added default as postgres as well in settings

* Add volume for sqlite3 database storage (incase desired)

* Added example env file for sqlite3 configuration

* whitespace for sanity of my own

* Add database_url as an optional env variable

* hopefully working towards chibicitiberiu/ytsm#6

* Added default command

* Expose 8000

* Added environment variable prefixes

* added environment variable to parse for dj_database_url

* Take out command in docker-compose since it's already in the Dockerfile as a cmd

* SQLite as default

* Create Docker README with information about how to run with Docker

* Took out postgres. If people desire it, they can add it themselves.

* Took out db depenednecy for docker-compose

* Change cmd

* Fixed up commands to run better in readme

* Added underscore to Docker_README

* Change default .db file location

.gitignore

@@ -1,6 +1,7 @@
 .vs
 .vscode
 temp/
+env.env
 
 # Byte-compiled / optimized / DLL files
 __pycache__/
@@ -115,3 +116,9 @@ venv.bak/
 dmypy.json
 
 media/
+
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json

Docker_README.md

@@ -0,0 +1,39 @@
+Running with Docker
+===
+
+Sample Run command
+-----
+```bash
+docker run -d --name ytsm -p 80:8000 --env-file sqlite3.env.env --volume ./downloads:/usr/src/app/data/downloads chibicitiberiu/ytsm:latest
+```
+### Quick Rundown:
+- `--expose 80:8000` maps the Host OS port 80 to the container port 80
+- `--env-file sqlite3.env.env` points to the env file with the desired variable settings (saves from typing them in the command line)
+- `--volume ./downloads:/usr/src/app/data/downloads` maps the downloads folder of the current directory to the container folder `downloads` (where you could set the program to download to)
+- `chibicitiberiu/ytsm:latest` tells Docker which image to run the container with (in this case, the latest version)
+
+**Note:** Replace `./downloads` in the command to where you want the downloads folder to be mapped to on the Host OS. Ex: `/path/to/host/download/folder:/path/to/container/download/folder`
+
+
+Environment variables
+-----
+- YTSM_DATABASE_ENGINE
+- YTSM_DATABASE_NAME
+- YTSM_YOUTUBE_API_KEY
+
+
+Volumes
+-----
+- /usr/src/app/data/media
+- /usr/src/app/data/db
+
+
+Notes
+----
+If you experience any issues with the app running, make sure to run the following command to apply Django migrations to the database
+
+### When using just the Dockerfile/Image
+- `docker exec ytsm python manage.py migrate`
+
+### When using the docker-compose file
+- `docker exec ytsm_web_1 python manage.py migrate`

Dockerfile

@@ -8,5 +8,20 @@ RUN apt-get install ffmpeg -y
 COPY ./app/requirements.txt ./ 
 RUN pip install --no-cache-dir -r requirements.txt
 
+ENV YTSM_DATABASE_ENGINE='django.db.backends.sqlite3'
+ENV YTSM_DATABASE_NAME='/usr/src/app/data/db/ytmanager.db'
+ENV YTSM_DATABASE_HOST=''
+ENV YTSM_DATABASE_USERNAME=''
+ENV YTSM_DATABASE_PASSWORD=''
+ENV YTSM_DATABASE_PORT=''
+ENV YTSM_YOUTUBE_API_KEY='AIzaSyBabzE4Bup77WexdLMa9rN9z-wJidEfNX8'
+
+VOLUME /usr/src/app/data/media
+VOLUME /usr/src/app/data/db
+
 COPY ./app/ .
 COPY ./config/ ./config/
+
+EXPOSE 8000
+
+CMD ["/bin/bash", "init.sh"]

app/YtManager/settings.py

@@ -21,7 +21,7 @@ BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 # SECURITY WARNING: keep the secret key used in production secret!
 SECRET_KEY = '^zv8@i2h!ko2lo=%ivq(9e#x=%q*i^^)6#4@(juzdx%&0c+9a0'
 
-YOUTUBE_API_KEY = "AIzaSyBabzE4Bup77WexdLMa9rN9z-wJidEfNX8"
+YOUTUBE_API_KEY = os.getenv('YTSM_YOUTUBE_API_KEY', 'AIzaSyBabzE4Bup77WexdLMa9rN9z-wJidEfNX8')
 
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
@@ -81,14 +81,18 @@ WSGI_APPLICATION = 'YtManager.wsgi.application'
 
 DATABASES = {
     'default': {
-        'ENGINE': 'django.db.backends.postgresql',
+        'ENGINE': os.getenv('YTSM_DATABASE_ENGINE', 'django.db.backends.postgresql'),
-        'NAME': 'postgres',
+        'NAME': os.getenv('YTSM_DATABASE_NAME', os.path.join(BASE_DIR, 'ytmanager.db')),
-        'USER': 'postgres',
+        'HOST': os.getenv('YTSM_DATABASE_HOST', None),
-        'HOST': 'db',
+        'USER': os.getenv('YTSM_DATABASE_USERNAME', None),
-        'PORT': 5432,
+        'PASSWORD': os.getenv('YTSM_DATABASE_PASSWORD', None),
+        'PORT': os.getenv('YTSM_DATABASE_PORT', None)
+    }
 }
 
-}
+if os.getenv('YTSM_DATABASE_URL', None):
+    import dj_database_url
+    DATABASES['default'] = dj_database_url.parse(os.environ['YTSM_DATABASE_URL'], conn_max_age=600)
 
 # Password validation
 # https://docs.djangoproject.com/en/1.11/ref/settings/#auth-password-validators

app/requirements.txt

@@ -2,6 +2,7 @@ apscheduler
 gunicorn
 django 
 django-crispy-forms 
+dj_database_url
 youtube-dl 
 google-api-python-client 
 google_auth_oauthlib 

docker-compose.yml

@@ -11,23 +11,13 @@ services:
     depends_on:
       - web
 
-  db:
-    image: postgres
-    restart: always
-    volumes:
-      - /var/lib/postgresql/data
-    environment:
-      POSTGRES_PASSWORD: postgres
-      POSTGRES_DB: ytmanager
-
   web:
     build: .
+    env_file:
+      - sqlite3.env.env
     tty: true
-    command: ./init.sh
     ports:
       - "8000:8000"
     volumes:
       - ./media:/usr/src/app/data/media
-    depends_on:
+      - ./db:/usr/src/app/data/db
-      - db
-

sqlite3.env.env

@@ -0,0 +1,3 @@
+YTSM_DATABASE_ENGINE=django.db.backends.sqlite3
+YTSM_DATABASE_NAME=/usr/src/app/data/db/ytmanager.db
+YTSM_YOUTUBE_API_KEY=AIzaSyBabzE4Bup77WexdLMa9rN9z-wJidEfNX8