From 3fcc4385589eebc8804178f88cd3a74555de5c23 Mon Sep 17 00:00:00 2001 From: mpeltriaux Date: Fri, 4 Feb 2022 15:17:08 +0100 Subject: [PATCH 1/5] Revert "Revert accidental docker->master merge" This reverts commit 49aba49406927d0002d87f1c63d1e809633c3f92. --- Dockerfile | 20 +++++++ README.md | 56 +++++++++++++++++ docker-compose.yml | 83 ++++++++++++++++++++++++++ konova/celery.py | 2 +- konova/sub_settings/django_settings.py | 26 ++++---- konova/sub_settings/sso_settings.py | 6 +- nginx/Dockerfile | 4 ++ nginx/nginx.conf | 20 +++++++ requirements.txt | 3 +- 9 files changed, 201 insertions(+), 19 deletions(-) create mode 100644 Dockerfile create mode 100644 docker-compose.yml create mode 100644 nginx/Dockerfile create mode 100644 nginx/nginx.conf diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..aad1422 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,20 @@ +FROM python:3.7-slim +ENV PYTHONUNBUFFERED 1 + +WORKDIR /konova + +# Install some dependencies +RUN apt update +RUN apt install -y gdal-bin + +# Copy requirements file into workspace +COPY ./requirements.txt /konova/ +RUN pip install --upgrade pip +RUN pip install -r requirements.txt + +# Copy rest of project into workspace +COPY . /konova/ + +# Move static files in designated folder +RUN python manage.py collectstatic --noinput + diff --git a/README.md b/README.md index 4497147..8fee921 100644 --- a/README.md +++ b/README.md @@ -4,6 +4,7 @@ the database postgresql and the css library bootstrap as well as the icon packag fontawesome for a modern look, following best practices from the industry. ## Background processes +### !!! For non-docker run Konova uses celery for background processing. To start the worker you need to run ```shell $ celery -A konova worker -l INFO @@ -18,3 +19,58 @@ Technical documention is provided in the projects git wiki. A user documentation is not available (and not needed, yet). +# Docker +To run the docker-compose as expected, you need to take the following steps: + +1. Create a database containing docker, using an appropriate Dockerfile, e.g. the following +``` +version: '3.3' +services: + postgis: + image: postgis/postgis + restart: always + container_name: postgis-docker + ports: + - 5433:5432 + volumes: + - db-volume:/var/lib/postgresql/data + environment: + - POSTGRES_PASSWORD=postgres + - POSTGRES_USER=postgres + networks: + - db-network-bridge + +networks: + db-network-bridge: + driver: "bridge" + +volumes: + db-volume: +``` +This Dockerfile creates a Docker container running postgresql and postgis, creates the default superuser postgres, +creates a named volume for persisting the database and creates a new network bridge, which **must be used by any other +container, which wants to write/read on this database**. + +2. Make sure the name of the network bridge above matches the network in the konova docker-compose.yml +3. Get into the running postgis container (`docker exec -it postgis-docker bash`) and create new databases, users and so on. Make sure the database `konova` exists now! +4. Replace all `CHANGE_ME_xy` values inside of konova/docker-compose.yml for your installation. Make sure the `SSO_HOST` holds the proper SSO host, e.g. for the arnova project `arnova.example.org` (Arnova must be installed and the webserver configured as well, of course) +5. Take a look on konova/settings.py and konova/sub_settings/django_settings.py. Again: Replace all occurences of `CHANGE_ME` with proper values for your installation. + 1. Make sure you have the proper host strings added to `ALLOWED_HOSTS` inside of django_settings.py. +6. Build and run the docker setup using `docker-compose build` and `docker-compose start` from the main directory of this project (where the docker-compose.yml lives) +7. Run migrations! To do so, get into the konova service container (`docker exec -it konova-docker bash`) and run the needed commands (`python manage.py makemigrations LIST_OF_ALL_MIGRATABLE_APPS`, then `python manage.py migrate`) +8. Run the setup command `python manage.py setup` and follow the instructions on the CLI +9. To enable **SMTP** mail support, make sure your host machine (the one where the docker container run) has the postfix service configured properly. Make sure the `mynetworks` variable is xtended using the docker network bridge ip, created in the postgis container and used by the konova services. + 1. **Hint**: You can find out this easily by trying to perform a test mail in the running konova web application (which will fail, of course). Then take a look to the latest entries in `/var/log/mail.log` on your host machine. The failed IP will be displayed there. + 2. **Please note**: This installation guide is based on SMTP using postfix! + 3. Restart the postfix service on your host machine to reload the new configuration (`service postfix restart`) +10. Finally, make sure your host machine webserver passes incoming requests properly to the docker nginx webserver of konova. A proper nginx config for the host machine may look like this: +``` +server { + server_name konova.domain.org; + + location / { + proxy_pass http://localhost:KONOVA_NGINX_DOCKER_PORT/; + proxy_set_header Host $host; + } +} +``` \ No newline at end of file diff --git a/docker-compose.yml b/docker-compose.yml new file mode 100644 index 0000000..a67fb2f --- /dev/null +++ b/docker-compose.yml @@ -0,0 +1,83 @@ +version: '3.3' + +services: + redis: + image: redis + container_name: "konova-redis-cache" + volumes: + - /redis/data:/bitnami/redis/data + environment: + - REDIS_PASSWORD=CHANGE_ME + + konova: + external_links: + - postgis:db + - arnova-nginx-server:arnova + build: . + container_name: "konova-docker" + command: gunicorn konova.wsgi:application --bind 0.0.0.0:8000 + volumes: + - .:/konova + - konova_uploaded_files:/konova_uploaded_files + - static_file_volume:/konova/static # Point to the volume for static files. Shared with nginx service + expose: + - 8000 + depends_on: + - redis + environment: + - POSTGRES_NAME=konova + - POSTGRES_PORT=5432 + - POSTGRES_PASSWORD=CHANGE_ME + - POSTGRES_USER=konova + - POSTGRES_HOST=db + - REDIS_HOST=redis + - SSO_HOST=CHANGE_ME_TO_SSO_HOST_URL + - SMTP_HOST=172.17.0.1 + - SMTP_PORT=25 + - SMTP_REAL_REPLY_MAIL=ksp-servicestelle@sgdnord.rlp.de + +# To provide a celery worker instance, we need to add the celery worker as an own service + celery_worker: + external_links: + - postgis:db + - arnova-nginx-server:arnova + build: . + container_name: "konova-worker-docker" + command: celery -A konova worker -l INFO + volumes: + - .:/konova + - konova_uploaded_files:/konova_uploaded_files + depends_on: + - konova + environment: + - POSTGRES_NAME=konova + - POSTGRES_PORT=5432 + - POSTGRES_PASSWORD=CHANGE_ME + - POSTGRES_USER=konova + - POSTGRES_HOST=db + - REDIS_HOST=redis + - SSO_HOST=CHANGE_ME_TO_SSO_HOST_URL + - SMTP_HOST=172.17.0.1 + - SMTP_PORT=25 + - SMTP_REAL_REPLY_MAIL=ksp-servicestelle@sgdnord.rlp.de + + nginx: + build: ./nginx + container_name: "konova-nginx-server" + ports: + - "1337:80" + depends_on: + - konova + volumes: + - static_file_volume:/konova/static # Point to the volume for static files. Shared with konova service + +# Instead of an own, new network, we need to connect to the existing one, which is provided by the postgis container +# NOTE: THIS NETWORK MUST EXIST +networks: + default: + external: + name: postgis_nat_it_backend + +volumes: + static_file_volume: + konova_uploaded_files: \ No newline at end of file diff --git a/konova/celery.py b/konova/celery.py index 478f284..ab06cf7 100644 --- a/konova/celery.py +++ b/konova/celery.py @@ -17,7 +17,7 @@ app.config_from_object('django.conf:settings', namespace='CELERY') app.autodiscover_tasks() # Declare redis as broker -app.conf.broker_url = 'redis://localhost:6379/0' +app.conf.broker_url = f"redis://{os.environ.get('REDIS_HOST')}:6379/0" @app.task(bind=True) diff --git a/konova/sub_settings/django_settings.py b/konova/sub_settings/django_settings.py index b0d6ff8..e725f57 100644 --- a/konova/sub_settings/django_settings.py +++ b/konova/sub_settings/django_settings.py @@ -124,10 +124,11 @@ WSGI_APPLICATION = 'konova.wsgi.application' DATABASES = { 'default': { 'ENGINE': 'django.contrib.gis.db.backends.postgis', - 'NAME': 'konova', - 'USER': 'postgres', - 'HOST': '127.0.0.1', - 'PORT': '5432', + 'NAME': os.environ.get('POSTGRES_NAME'), + 'USER': os.environ.get('POSTGRES_USER'), + 'HOST': os.environ.get('POSTGRES_HOST'), + 'PASSWORD': os.environ.get('POSTGRES_PASSWORD'), + 'PORT': os.environ.get('POSTGRES_PORT'), } } @@ -209,19 +210,14 @@ DEBUG_TOOLBAR_CONFIG = { } # EMAIL (see https://docs.djangoproject.com/en/dev/topics/email/) - -# CHANGE_ME !!! ONLY FOR DEVELOPMENT !!! if DEBUG: + # ONLY FOR DEVELOPMENT NEEDED EMAIL_BACKEND = 'django.core.mail.backends.filebased.EmailBackend' - EMAIL_FILE_PATH = '/tmp/app-messages' # change this to a proper location + EMAIL_FILE_PATH = '/tmp/app-messages' -DEFAULT_FROM_EMAIL = "service@ksp.de" # The default email address for the 'from' element +DEFAULT_FROM_EMAIL = "no-reply@ksp.de" # The default email address for the 'from' element SERVER_EMAIL = DEFAULT_FROM_EMAIL # The default email sender address, which is used by Django to send errors via mail -EMAIL_HOST = "localhost" -EMAIL_REPLY_TO = "ksp-servicestelle@sgdnord.rlp.de" +EMAIL_HOST = os.environ.get('SMTP_HOST') +EMAIL_REPLY_TO = os.environ.get('SMTP_REAL_REPLY_MAIL') SUPPORT_MAIL_RECIPIENT = EMAIL_REPLY_TO -EMAIL_PORT = "25" -#EMAIL_HOST_USER = "" -#EMAIL_HOST_PASSWORD = "" -EMAIL_USE_TLS = False -EMAIL_USE_SSL = False +EMAIL_PORT = os.environ.get('SMTP_PORT') diff --git a/konova/sub_settings/sso_settings.py b/konova/sub_settings/sso_settings.py index 20417f0..390ed40 100644 --- a/konova/sub_settings/sso_settings.py +++ b/konova/sub_settings/sso_settings.py @@ -7,7 +7,9 @@ Created on: 31.01.22 """ # SSO settings -SSO_SERVER_BASE = "http://127.0.0.1:8000/" +import os + +SSO_SERVER_BASE = f"http://{os.environ.get('SSO_HOST')}/" SSO_SERVER = f"{SSO_SERVER_BASE}sso/" SSO_PRIVATE_KEY = "QuziFeih7U8DZvQQ1riPv2MXz0ZABupHED9wjoqZAqeMQaqkqTfxJDRXgSIyASwJ" -SSO_PUBLIC_KEY = "AGGK7E8eT5X5u2GD38ygGG3GpAefmIldJiiWW7gldRPqCG1CzmUfGdvPSGDbEY2n" \ No newline at end of file +SSO_PUBLIC_KEY = "AGGK7E8eT5X5u2GD38ygGG3GpAefmIldJiiWW7gldRPqCG1CzmUfGdvPSGDbEY2n" diff --git a/nginx/Dockerfile b/nginx/Dockerfile new file mode 100644 index 0000000..4c49d2e --- /dev/null +++ b/nginx/Dockerfile @@ -0,0 +1,4 @@ +FROM nginx:alpine + +RUN rm /etc/nginx/conf.d/default.conf +COPY nginx.conf /etc/nginx/conf.d \ No newline at end of file diff --git a/nginx/nginx.conf b/nginx/nginx.conf new file mode 100644 index 0000000..26b326c --- /dev/null +++ b/nginx/nginx.conf @@ -0,0 +1,20 @@ +upstream konova { + server konova:8000; +} + +server { + + listen 80; + + location / { + proxy_pass http://konova; + proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; + proxy_set_header Host $host; + proxy_redirect off; + } + + location /static/ { + alias /konova/static/; + } + +} diff --git a/requirements.txt b/requirements.txt index e2f4310..20e0bff 100644 --- a/requirements.txt +++ b/requirements.txt @@ -47,4 +47,5 @@ wcwidth==0.2.5 webservices==0.7 wrapt==1.13.3 xmltodict==0.12.0 -zipp==3.4.1 \ No newline at end of file +zipp==3.4.1 +gunicorn==20.1.0 \ No newline at end of file From f50f17d593231adf22792d48279dea2eca73c86f Mon Sep 17 00:00:00 2001 From: mpeltriaux Date: Wed, 9 Mar 2022 14:02:25 +0100 Subject: [PATCH 2/5] Docker worker enhancement * drops docker worker process in favor of background celery worker on main process * changes uploaded files folder into host-based folder --- docker-compose.yml | 33 ++++----------------------------- 1 file changed, 4 insertions(+), 29 deletions(-) diff --git a/docker-compose.yml b/docker-compose.yml index a67fb2f..bf32e64 100644 --- a/docker-compose.yml +++ b/docker-compose.yml @@ -15,10 +15,11 @@ services: - arnova-nginx-server:arnova build: . container_name: "konova-docker" - command: gunicorn konova.wsgi:application --bind 0.0.0.0:8000 + command: sh -c 'celery -A konova worker -l INFO --detach && gunicorn konova.wsgi:application --bind 0.0.0.0:8000' + restart: always volumes: - .:/konova - - konova_uploaded_files:/konova_uploaded_files + - /path/to/host/folder:/konova_uploaded_files - static_file_volume:/konova/static # Point to the volume for static files. Shared with nginx service expose: - 8000 @@ -36,31 +37,6 @@ services: - SMTP_PORT=25 - SMTP_REAL_REPLY_MAIL=ksp-servicestelle@sgdnord.rlp.de -# To provide a celery worker instance, we need to add the celery worker as an own service - celery_worker: - external_links: - - postgis:db - - arnova-nginx-server:arnova - build: . - container_name: "konova-worker-docker" - command: celery -A konova worker -l INFO - volumes: - - .:/konova - - konova_uploaded_files:/konova_uploaded_files - depends_on: - - konova - environment: - - POSTGRES_NAME=konova - - POSTGRES_PORT=5432 - - POSTGRES_PASSWORD=CHANGE_ME - - POSTGRES_USER=konova - - POSTGRES_HOST=db - - REDIS_HOST=redis - - SSO_HOST=CHANGE_ME_TO_SSO_HOST_URL - - SMTP_HOST=172.17.0.1 - - SMTP_PORT=25 - - SMTP_REAL_REPLY_MAIL=ksp-servicestelle@sgdnord.rlp.de - nginx: build: ./nginx container_name: "konova-nginx-server" @@ -79,5 +55,4 @@ networks: name: postgis_nat_it_backend volumes: - static_file_volume: - konova_uploaded_files: \ No newline at end of file + static_file_volume: \ No newline at end of file From 7d29dddd226397fe7b3dfcb50c9bfe49d1d911dd Mon Sep 17 00:00:00 2001 From: mpeltriaux Date: Mon, 25 Apr 2022 16:07:38 +0200 Subject: [PATCH 3/5] WIP: Docker enhancement * reduce containers into a single one, holding nginx + celery + redis all at once --- Dockerfile | 6 ++++-- docker-compose.yml | 44 ++++++++++++++++++++++---------------------- nginx/nginx.conf | 2 +- 3 files changed, 27 insertions(+), 25 deletions(-) diff --git a/Dockerfile b/Dockerfile index aad1422..290c3d0 100644 --- a/Dockerfile +++ b/Dockerfile @@ -1,11 +1,11 @@ -FROM python:3.7-slim +FROM python:3.7 ENV PYTHONUNBUFFERED 1 WORKDIR /konova # Install some dependencies RUN apt update -RUN apt install -y gdal-bin +RUN apt install -y gdal-bin redis-server nginx # Copy requirements file into workspace COPY ./requirements.txt /konova/ @@ -13,6 +13,8 @@ RUN pip install --upgrade pip RUN pip install -r requirements.txt # Copy rest of project into workspace +RUN rm /etc/nginx/sites-enabled/default +COPY ./nginx/nginx.conf /etc/nginx/conf.d COPY . /konova/ # Move static files in designated folder diff --git a/docker-compose.yml b/docker-compose.yml index bf32e64..74f8c0b 100644 --- a/docker-compose.yml +++ b/docker-compose.yml @@ -1,13 +1,13 @@ version: '3.3' services: - redis: - image: redis - container_name: "konova-redis-cache" - volumes: - - /redis/data:/bitnami/redis/data - environment: - - REDIS_PASSWORD=CHANGE_ME + #redis: + # image: redis + # container_name: "konova-redis-cache" + # volumes: + # - /redis/data:/bitnami/redis/data + # environment: + # - REDIS_PASSWORD=CHANGE_ME konova: external_links: @@ -15,37 +15,37 @@ services: - arnova-nginx-server:arnova build: . container_name: "konova-docker" - command: sh -c 'celery -A konova worker -l INFO --detach && gunicorn konova.wsgi:application --bind 0.0.0.0:8000' + command: sh -c 'service nginx start && service redis-server start && celery -A konova worker --detach && gunicorn konova.wsgi:application --bind 0.0.0.0:8000' restart: always volumes: - .:/konova - /path/to/host/folder:/konova_uploaded_files - static_file_volume:/konova/static # Point to the volume for static files. Shared with nginx service - expose: - - 8000 - depends_on: - - redis + ports: + - "1337:80" + #depends_on: + # - redis environment: - POSTGRES_NAME=konova - POSTGRES_PORT=5432 - POSTGRES_PASSWORD=CHANGE_ME - POSTGRES_USER=konova - POSTGRES_HOST=db - - REDIS_HOST=redis + - REDIS_HOST=localhost - SSO_HOST=CHANGE_ME_TO_SSO_HOST_URL - SMTP_HOST=172.17.0.1 - SMTP_PORT=25 - SMTP_REAL_REPLY_MAIL=ksp-servicestelle@sgdnord.rlp.de - nginx: - build: ./nginx - container_name: "konova-nginx-server" - ports: - - "1337:80" - depends_on: - - konova - volumes: - - static_file_volume:/konova/static # Point to the volume for static files. Shared with konova service + #nginx: + # build: ./nginx + # container_name: "konova-nginx-server" + # ports: + # - "1337:80" + # depends_on: + # - konova + # volumes: + # - static_file_volume:/konova/static # Point to the volume for static files. Shared with konova service # Instead of an own, new network, we need to connect to the existing one, which is provided by the postgis container # NOTE: THIS NETWORK MUST EXIST diff --git a/nginx/nginx.conf b/nginx/nginx.conf index 26b326c..373393a 100644 --- a/nginx/nginx.conf +++ b/nginx/nginx.conf @@ -1,5 +1,5 @@ upstream konova { - server konova:8000; + server localhost:8000; } server { From 80de57a0879697b1bfbbd1e7adab40720022c956 Mon Sep 17 00:00:00 2001 From: mpeltriaux Date: Tue, 26 Apr 2022 08:55:07 +0200 Subject: [PATCH 4/5] WIP: Docker enhancement * reduces all needed containers into a single one * simplifies initial startup command by adding docker-entrypoint.sh --- Dockerfile | 8 +++++--- docker-compose.yml | 28 ++-------------------------- docker-entrypoint.sh | 7 +++++++ nginx/nginx.conf => nginx.conf | 0 nginx/Dockerfile | 4 ---- 5 files changed, 14 insertions(+), 33 deletions(-) create mode 100755 docker-entrypoint.sh rename nginx/nginx.conf => nginx.conf (100%) delete mode 100644 nginx/Dockerfile diff --git a/Dockerfile b/Dockerfile index 290c3d0..ad61d71 100644 --- a/Dockerfile +++ b/Dockerfile @@ -7,14 +7,16 @@ WORKDIR /konova RUN apt update RUN apt install -y gdal-bin redis-server nginx -# Copy requirements file into workspace +# Copy requirements file into workspace and install all dependencies COPY ./requirements.txt /konova/ RUN pip install --upgrade pip RUN pip install -r requirements.txt -# Copy rest of project into workspace +# Remove nginx default configuration and replace with own configuration RUN rm /etc/nginx/sites-enabled/default -COPY ./nginx/nginx.conf /etc/nginx/conf.d +COPY ./nginx.conf /etc/nginx/conf.d + +# Copy rest of project into workspace COPY . /konova/ # Move static files in designated folder diff --git a/docker-compose.yml b/docker-compose.yml index 74f8c0b..c7bd3f4 100644 --- a/docker-compose.yml +++ b/docker-compose.yml @@ -1,30 +1,19 @@ version: '3.3' services: - #redis: - # image: redis - # container_name: "konova-redis-cache" - # volumes: - # - /redis/data:/bitnami/redis/data - # environment: - # - REDIS_PASSWORD=CHANGE_ME - konova: external_links: - postgis:db - arnova-nginx-server:arnova build: . container_name: "konova-docker" - command: sh -c 'service nginx start && service redis-server start && celery -A konova worker --detach && gunicorn konova.wsgi:application --bind 0.0.0.0:8000' + command: ./docker-entrypoint.sh restart: always volumes: - .:/konova - - /path/to/host/folder:/konova_uploaded_files - - static_file_volume:/konova/static # Point to the volume for static files. Shared with nginx service + - /data/apps/konova/uploaded_files:/konova_uploaded_files ports: - "1337:80" - #depends_on: - # - redis environment: - POSTGRES_NAME=konova - POSTGRES_PORT=5432 @@ -37,22 +26,9 @@ services: - SMTP_PORT=25 - SMTP_REAL_REPLY_MAIL=ksp-servicestelle@sgdnord.rlp.de - #nginx: - # build: ./nginx - # container_name: "konova-nginx-server" - # ports: - # - "1337:80" - # depends_on: - # - konova - # volumes: - # - static_file_volume:/konova/static # Point to the volume for static files. Shared with konova service - # Instead of an own, new network, we need to connect to the existing one, which is provided by the postgis container # NOTE: THIS NETWORK MUST EXIST networks: default: external: name: postgis_nat_it_backend - -volumes: - static_file_volume: \ No newline at end of file diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh new file mode 100755 index 0000000..3e405b7 --- /dev/null +++ b/docker-entrypoint.sh @@ -0,0 +1,7 @@ +#!/bin/bash +# Start all needed services inside the container! + +service nginx start +service redis-server start +celery -A konova worker --detach +gunicorn konova.wsgi:application --bind 0.0.0.0:8000 \ No newline at end of file diff --git a/nginx/nginx.conf b/nginx.conf similarity index 100% rename from nginx/nginx.conf rename to nginx.conf diff --git a/nginx/Dockerfile b/nginx/Dockerfile deleted file mode 100644 index 4c49d2e..0000000 --- a/nginx/Dockerfile +++ /dev/null @@ -1,4 +0,0 @@ -FROM nginx:alpine - -RUN rm /etc/nginx/conf.d/default.conf -COPY nginx.conf /etc/nginx/conf.d \ No newline at end of file From 7027e0c02bd58ba8e813d14337713976048ee02d Mon Sep 17 00:00:00 2001 From: mpeltriaux Date: Tue, 26 Apr 2022 10:09:58 +0200 Subject: [PATCH 5/5] Docker enhancement * optimizes image build dependency * increases gunicorn default number of workers --- Dockerfile | 2 +- docker-entrypoint.sh | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/Dockerfile b/Dockerfile index ad61d71..6e35526 100644 --- a/Dockerfile +++ b/Dockerfile @@ -1,4 +1,4 @@ -FROM python:3.7 +FROM python:3.9-slim ENV PYTHONUNBUFFERED 1 WORKDIR /konova diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh index 3e405b7..e9f2cea 100755 --- a/docker-entrypoint.sh +++ b/docker-entrypoint.sh @@ -1,7 +1,7 @@ #!/bin/bash -# Start all needed services inside the container! - +# Start all needed services once the container is fired up! service nginx start service redis-server start celery -A konova worker --detach -gunicorn konova.wsgi:application --bind 0.0.0.0:8000 \ No newline at end of file +# Rule of thumb: (2*CPU)+1 as worker_num -> Use 5 as default (matches a dual core) +gunicorn --workers=5 konova.wsgi:application --bind=0.0.0.0:8000 \ No newline at end of file