System Architecture

Direct Installation Architecture

Folder/File Structure
- Fig 1.0 Rho-ERP Web Root Structure
  Web Root Folder (e.g. /var/www/html or /usr/share/nginx/html)
- Fig1.1 Database Directory Structure
  Database Directory (e.g. /opt/apache/adbs): As shown in the Fig 1.1 on the right. This folder also houses the superConfig file for each installation.
Database Schemas
- List of all Database Schemas
Code Executions (Client Javascript to Server PHP)
- Code execution always starts from the client making a request via a javascript ajax call. All client requests are processed first by index.php file and subsequently forwarded to the appropriate php file for execution

Docker Container Architecture

Container Images
- Fig1.2 Running Docker Compose Rhomicom ERP
  rho-nginx: This is the container that hosts the web root files and folders. It runs nginx web server on port 8000 and serves the ERP web files. It has php7.4 installed. It is based on the rhomicom/rho-erp-base:v1.2 image on docker hub. Its root folder /usr/share/nginx/html is mounted to the local directory src/RHO_ERP_WEB. It also mounts the local DB Directory folder db/db_dirs/ to /opt/apache
- rho-api: This container contains an installation of NodeJS, expressJS, Java and Chromium Browser. It's main purpose is to make availble apis that can be called by the application running on rho-nginx to execute specific tasks in the background and serve the output back to rho-nginx container. It mounts the local DB Directory folder db/db_dirs/ to /opt/apache
- rho-pgdb: The postgreSQL v12.4 container that houses the database behind the rhomicom erp system
- rho-redis: The redis server container used by the rho-nginx container to handle all php caching and session handling
- rho-mysqldb: The MySQL 5.7 container for the biometric (fingerprint) database behind the rhomicom banking solution
- rho-pgadmin: pgAdmin4 container for managing the postgreSQL database
- rho-administrator: Adminer container for managing the MySQL Database. It can as well be used to manage the postgreSQL DB
Folder/File Structure
- db folder: This folder houses all the files needed by the various databases
- src folder: This contains the ERP Web root folders as well as the yuicompressor jar file
  
  Fig1.3 Folder Structure for Rhomicom Docker Compose

Sample Docker Compose File

version: "3.3"
services:
  nginx:
    image: rhomicom/rho-erp-base:v1.2
    container_name: rho-nginx
    logging:
      driver: "json-file"
      options:
        max-size: "5m"
        max-file: "5"
    depends_on:
      - redis
      - pgdb
      - mysqldb
      - rhoapi
    ports:
      - 8000:8080
    tty: true
    restart: always
    networks:
      - nt1
    volumes:
      - ./src/RHO_ERP_WEB:/usr/share/nginx/html
      - ./db/db_dirs:/opt/apache
      - ./conf/rho-php.ini:/etc/php7/php.ini
      - ./conf/rho-www.conf:/etc/php7/php-fpm.d/www.conf
      - ./conf/nginx_conf/nginx.conf:/etc/nginx/nginx.conf
      - ./conf/nginx_conf/conf.d/default.conf:/etc/nginx/conf.d/default.conf
      - ./conf/nginx_conf/conf.d/pagespeed.conf:/etc/nginx/conf.d/pagespeed.conf
  redis:
    image: redis:6.0.8-alpine3.12
    restart: unless-stopped
    container_name: rho-redis
    logging:
      driver: "json-file"
      options:
        max-size: "5m"
        max-file: "5"
    #environment:
    #- REDIS_PASSWORD=${REDIS_PASSWORD}
    command: redis-server --appendonly yes
    networks:
      - nt1
  pgdb:
    image: postgres:12.4-alpine #postgres:13.0-alpine
    restart: always
    container_name: rho-pgdb
    logging:
      driver: "json-file"
      options:
        max-size: "5m"
        max-file: "5"
    networks:
      - nt1
    volumes:
      - ./db/initdb/pgdb:/docker-entrypoint-initdb.d
      - ./db/db_dirs:/opt/apache
      - ./db/conf/postgresql.conf:/var/lib/postgresql/data/pgdata/postgresql.conf
      #Uncomment 2nd Volume for persistent Data
      #NB: Not uncommenting might cause data loss when docker-compose down is run
      #- ./db/db_data/pgdb:/var/lib/postgresql/data
    environment:
      POSTGRES_DB: rho_erp_db
      POSTGRES_PASSWORD: Password1
      PGDATA: /var/lib/postgresql/data/pgdata
  #Choose Between Adminer, pgAdmin or Webmin
  #Comment/Uncomment out as desired
  adminer:
    image: adminer
    restart: always
    container_name: rho-administrator
    logging:
      driver: "json-file"
      options:
        max-size: "5m"
        max-file: "5"
    ports:
      - 8090:8080
    networks:
      - nt1
    volumes:
      - ./conf/adminer/uploads.ini:/usr/local/etc/php/conf.d/uploads.ini
  pgadmin:
    image: dpage/pgadmin4:4.28
    restart: always
    container_name: rho-pgadmin
    logging:
      driver: "json-file"
      options:
        max-size: "5m"
        max-file: "5"
    ports:
      - 8091:80
    environment:
      - [email protected]
      - PGADMIN_DEFAULT_PASSWORD=Password1
    networks:
      - nt1
    volumes:
      - ./db/pgadmin:/var/lib/pgadmin/storage
  mysqldb:
    image: mysql:5.7
    restart: always
    container_name: rho-mysqldb
    logging:
      driver: "json-file"
      options:
        max-size: "5m"
        max-file: "5"
    networks:
      - nt1
    volumes:
      - ./db/initdb/mysqldb:/docker-entrypoint-initdb.d
      #Uncomment 2nd Volume for persistent Data
      #NB: Not uncommenting might cause data loss when docker-compose down is run
      #- ./db/db_data/mysqldb:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=Password1
      - MYSQL_DATABASE=demo_flexcodesdk
  rhoapi:
    image: rhomicom/rho-erp-api:v1.0
    restart: always
    container_name: rho-api
    logging:
      driver: "json-file"
      options:
        max-size: "5m"
        max-file: "5"
    #ports: - 3000:3000
    networks:
      - nt1
    volumes:
      - ./src/RHO_ERP_WEB:/usr/share/nginx/html
      - ./db/db_dirs:/opt/apache
      - ./api_image/code:/code
    #command: npm prod-start
volumes:
  site:
networks:
  nt1:

System Architecture

Direct Installation Architecture

Docker Container Architecture

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