https://www.learnlinux.tv/complete-ansible-semaphore-tutorial-from-installation-to-automation/
https://github.com/ansible-semaphore/semaphore/releases
https://www.semui.co/

sudo adduser --system --group --home /home/mynewuser mynewuser

sudo apt install mariadb-server
sudo mysql_secure_installation
sudo mariadb

CREATE DATABASE semaphore_db;
GRANT ALL PRIVILEGES ON semaphore_db.* TO semaphore_user@localhost IDENTIFIED BY 'randomly_generated_password_here';
exit

wget https://github.com/ansible-semaphore/semaphore/releases/download/v<VERSION>/semaphore_<VERSION>_linux_amd64.deb
sudo dpkg -i semaphore*.deb
semaphore setup
semaphore server --config config.json
sudo mkdir /etc/semaphore
sudo mv config.json /etc/semaphore/
sudo chown -R semaphore:semaphore /etc/semaphore

Creating a Systemd service
sudo nano /etc/systemd/system/semaphore.service

[Unit]
Description=Ansible Semaphore
Documentation=https://docs.ansible-semaphore.com/
Wants=network-online.target
After=network-online.target
ConditionPathExists=/usr/bin/semaphore
ConditionPathExists=/etc/semaphore/config.json

[Service]
ExecStart=/usr/bin/semaphore server --config /etc/semaphore/config.json
ExecReload=/bin/kill -HUP $MAINPID
Restart=always
RestartSec=10s
User=semaphore
Group=semaphore

[Install]
WantedBy=multi-user.target


sudo systemctl daemon-reload
sudo systemctl enable semaphore.service
sudo systemctl start semaphore.service

Playbook Repository
In order for us to continue with this example, you’ll need a Git repository with the following local.yml file inside:

---
- hosts: my_servers
  become: true
  tasks:
    - name: Print OS info
      ansible.builtin.package:
        name: apache2

Configure Semaphore
The following code is used to create an environment within Semaphore:

create environment

{
  "var_environment": "production"
}

In order to ensure Semaphore can run commands properly, we’ll need a line similar to the one below added to /etc/sudoers.d/semaphore on the target (the instance that our Semaphore server will be configuring). Be sure to replace semaphore in both the file name and inside the file to match the username of the user you intend to use with Semaphore.

semaphore ALL=(ALL) NOPASSWD: ALL

Other config files
The following format was used for the inventory file (be sure to change the information to match yours):

[all:vars]
ansible_ssh_common_args='-o StrictHostKeyChecking=no'

[web_servers]
172.234.197.30