System Architecture

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Direct Installation Architecture

  1. Folder/File Structure
    • Fig 1.0 Rho-ERP Web Root Structure
      Fig 1.0 Rho-ERP Web Root Structure
      Web Root Folder (e.g. /var/www/html or /usr/share/nginx/html) Fig 1.0 Rho-ERP Web Root Structure
    • Fig1.1 Database Directory Structure
      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.
  2. Database Schemas
  3. 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

  1. Container Images
    • Fig1.2vRunning Docker Compose Rhomicom ERP
      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
  2. 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
      Fig1.3 Folder Structure for Rhomicom Docker Compose
  3. 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: