This guide will install OrangeHRM Starter Edition on Oracle Cloud Compute and setup a custom domain for it.

This gives a powerful HRM platform for business HR functions

Create a Compute Instance using this guide
Install Docker & Docker Compose using this guide

Log on to the compute box and create folders

 mkdir -p docker/orangehrm
 cd docker/orangehrm

Create a new docker-compose.yml
```
 nano docker-compose.yml
```

Modify this file specifically change the Pab!oPassM@ster passwords (its in two places). However you're welcome to use this password if you like 😉

 version: "3.3"
 services:
   orangehrm:
     image: orangehrm/orangehrm:latest
     restart: unless-stopped
     ports:
       - "8200:80"
       - "8243:443"
     environment:
       - ORANGEHRM_DATABASE_HOST=mariadb
       - ORANGEHRM_DATABASE_USER=orangehrmuser
       - ORANGEHRM_DATABASE_PASSWORD=Pab!oPassM@ster
       - ORANGEHRM_DATABASE_NAME=orangehrm
       - PUID=998
       - PGID=100
     volumes:
       - ./orange:/orangehrm
     depends_on:
       - mariadb
     links:
       - mariadb:mariadb      

   mariadb:
     image: mariadb:10.2
     restart: unless-stopped
     volumes:
       - ./db_orange:/var/lib/mysql
     environment:
       - MYSQL_ROOT_PASSWORD=Pab!oPassM@ster
       - MYSQL_ROOT_USER=root
       - MYSQL_DATABASE=orangehrm

Paste the file into nano and CTRL+X to save and quit

Compose the file (it'll take 1-mins) using the command below

 docker-compose up -d

It'll look like this

 [opc@holamundo orangehrm]$ docker-compose up -d
 [+] Running 30/30
  ✔ mariadb 12 layers [⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿]      0B/0B      Pulled                                                                                                                                                                                                                                                                                                                           27.3s
    ✔ 22c5ef60a68e Pull complete                                                                                                                                                                                                                                                                                                                                                       3.7s
    ✔ 0ee278c19a4a Pull complete                                                                                                                                                                                                                                                                                                                                                       3.7s
 ...                                                                                                                                                                                                                                                                                                                                                      5.5s
  ✔ orangehrm 16 layers [⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿]      0B/0B      Pulled                                                                                                                                                                                                                                                                                                                     32.8s
    ✔ 0e0969fcaa82 Pull complete                                                                                                                                                                                                                                                                                                                                                       0.8s
    ✔ 1ff5e264c017 Pull complete                                                                                                                                                                                                                                                                                                                                                       0.4s
 ...                                                                                                                                                                                                                                                                                                                                                    3.6s
 [+] Building 0.0s (0/0)                                                                                                                                                                                                                                                                                                                                                     docker:default
 [+] Running 3/3
  ✔ Network orangehrm_default        Created                                                                                                                                                                                                                                                                                                                                           0.9s
  ✔ Container orangehrm-mariadb-1    Started                                                                                                                                                                                                                                                                                                                                           0.1s
  ✔ Container orangehrm-orangehrm-1  Started

Check the docker containers are running

 docker ps --filter "name=orangehrm*"

It should show

 CONTAINER ID   IMAGE                        COMMAND                  CREATED              STATUS              PORTS                                                                            NAMES
 098eb5436d58   orangehrm/orangehrm:latest   "docker-php-entrypoi…"   About a minute ago   Up About a minute   0.0.0.0:8200->80/tcp, :::8200->80/tcp, 0.0.0.0:8243->443/tcp, :::8243->443/tcp   orangehrm-orangehrm-1
 f0afb3064bed   mariadb:10.2                 "docker-entrypoint.s…"   About a minute ago   Up About a minute   3306/tcp                                                                         orangehrm-mariadb-1

Write down the NAME of the mariadb, in my case its orangehrm-mariadb-1 (we'll need this later).

Open the following ports using this guide
- 8200
- 8243
- 3306
Log in to your Domain Administration (I'm using CloudFlare) and add an A to the IP of your NGINX Proxy Manager - setup guide here
Log in to your NGINX Proxy Manager Dashboard and add a proxy host. Type in the Domain Name you added to you Domain Registration and the IP of your NPM box.

Also select your SSL certificate on the SSL tab. I'm using my 15 year CloudFlare one.
Visit the sub domain and you should be good to go
Click Fresh Install > Next
Read the license agreement. Come on.... its not long
If you decide to accept the license, then click to Accept the Terms in the License Agreement and click next
Select Existing Empty Database and complete the Database Configuration as per the picture below. Note the Database Host Name is the name of the mariadb container name you made a note of earlier. The DB Name, User and Password are the 3 values at the bottom of thedocker-compose.yamlfile - scroll up this blog to find them.
Check everything is green and click Next
Enter your Organization Name. Sorry no English (United Kingdom) here, so you have to pick another English variant.
Enter the Admin details on the next page and remember to unselect the register your system with OrangeHRM - see picture below
On the next page, confirmation, click Install and this will just take a minute
Click Launch OrangeHRM
Enter the Admin Username & Password you just created during the wizard
Enjoy