Docker Orchestrator

Ubuntu Installation

Will use a ubuntu-lts-live-server image.

Ubuntu Configuration

Fix unallocted disk space after install

How to make LV use all disk space in PV?Ask Ubuntu

sudo su

Will show the allocated amount in default unit /dev/mapper/ubuntu--vg-ubuntu--lv

df -h

vgdisplay
lvextend -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv

Update/Upgrade

sudo apt update && upgrade -y
sudo apt autoremove
sudo apt autoclean
sudo apt clean

Disable SSH with root user

sudo nano /etc/ssh/sshd_config

Find these line and change

... 
PermitRootLogin no
...

sudo systemctl restart sshd

Install Docker

Set up Docker's apt repository.

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

Install the Docker packages

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Using Apache

Install Apache2

sudo apt install apache2 apache2-doc apache2-utils
sudo systemctl status apache2
sudo a2dissite 000-default-conf
sudo systemctl reload apache2

Activate the Firewall (Apache and OpenSSH)

sudo ufw allow 'Apache Full'
sudo ufw allow OpenSSH
sudo ufw enable
sudo ufw status

Config the apache vhosts to proxy to other servers (HTTP only)

Install the modules

cd /etc/apache2/sites-enabled
sudo a2enmod proxy proxy_http
sudo systemctl restart apache2

Creating VHOST files

Make a new file for each new hostname.domain

cp /etc/apache2/sites-available/000-default.conf /etc/apache2/sites-available/00x-domain_url.conf

<VirtualHost *:80>
    ProxyPreserveHost On

    ServerName domain_url
    ProxyPass / http://[IP]:[PORT]
    ProxyPassReverse / http://[IP]:[PORT]
</VirtualHost>

sudo a2ensite 00x-domain_url.conf