APPLICATION_DEPLOYMENT_USING_DOCKER.md

Application Deployment Using Docker

1. Docker Command for Build with tag (re-tag),Save,Load image
2. Create Docker Network
3. Run Docker For Database
4. Run Docker For Redis
5. Run Docker For ML Model
6. Run Docker For One-time Application Migration
7. Run Docker For Application (Web & Worker)
8. Run Docker For Nginx (If required)

NOTE: If docker command raise issue then use sudo

Docker Command for Build,Save,Load image

docker build -t tage_name .
docker image tag source_tage_name target_tage_name
docker save tage_name > tage_name.tar
docker load --input tage_name.tar

Create Docker Network

docker network create application_network

Run Docker For Database

docker run -d --name postgres --network application_network -e POSTGRES_USER={{DB_USERNAME}} -e POSTGRES_PASSWORD={{DB_PASSWORD}} -e POSTGRES_DB={{DB_NAME}} -e PGDATA=/var/lib/postgresql/data/pgdata -v ./postgresql/data:/var/lib/postgresql/data/pgdata postgres:14

Run Docker For Redis

docker run -d --name redis --network application_network redis:7

Run Docker For ML Model

docker run -d --name layoutlmv2 --network application_network --env-file ./.env -v ./layoutlmv2/model:/opt/ml/model entities:latest
docker run -d --name detr --network application_network --env-file ./.env -v ./detr/model:/opt/ml/model table:latest

Run Docker For One-time Application Migration

docker run --rm --name application_migrate --network application_network --link postgres --link redis --env-file ./.env application:latest python manage.py migrate_schemas
docker run --rm --name application_public --network application_network --link postgres --link redis --env-file ./.env application:latest python manage.py make_public_tenant

Run Docker For Application (Web & Worker)

docker run -d --name application_webserver --network application_network --link postgres --link redis --env-file ./.env --entrypoint ./custom_entrypoint.sh -v ./custom_entrypoint.sh:/home/application/custom_entrypoint.sh -v ./media:/home/application/media -v ./static:/home/application/static -p 8000:8000 application:latest

Custom Entrypoint (name: custom_entrypoint.sh)

#!/bin/bash
python manage.py runserver 0.0.0.0:8000 & celery -A application_project worker -l INFO -c 2

Run Docker For Nginx (If required)

docker run -d --name nginx_server --network application_network -v ./nginx.conf:/etc/nginx/nginx.conf -v ./certs:/etc/nginx/certs/ -v ./static:/etc/nginx/static/ -p 443:443 nginx:latest

Nginx Conf (name: nginx.conf)

events {
    worker_connections 1024;
}

http {
    upstream django {
        server application_webserver:8000;
    }
 
    server {
        listen 443 ssl;
        server_name {{tenant_domain}};

        ssl_certificate /etc/nginx/certs/glib/certificate.crt;
        ssl_certificate_key /etc/nginx/certs/glib/private.key;
        
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers on;
        ssl_ciphers HIGH:!aNULL:!MD5;
        
        #location /static/ {
        #    alias /etc/nginx/static/;
        #}

        location / {
            proxy_pass http://application_webserver:8000;
            # proxy_set_header Host {{tenant_domain}}; (if required)
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
        }
        client_max_body_size 250M;
    }
 
    
    server {
        listen 443 ssl;
        server_name {{admin_domain}};

        ssl_certificate /etc/nginx/certs/admin/certificate.crt;
        ssl_certificate_key /etc/nginx/certs/admin/private.key;
        
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers on;
        ssl_ciphers HIGH:!aNULL:!MD5;
        
        #location /static/ {
        #    alias /etc/nginx/static/;
        #}

        location / {
            proxy_pass http://application_webserver:8000;
            # proxy_set_header Host {{admin_domain}}; (if required)
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
        }
        client_max_body_size 250M;
    }
}