smilprpi0010.sharpnet.sdac¶

Pre-requisites¶

Installation¶

First step is to create a new Ubuntu "installation" for our Raspberry System using the RPi Imager and the Ubuntu 22.04 Server Image.

"Burn" the Ubuntu Server image to the MMC/SSD¶

Start Raspberry Pi Imager

Click "CHOOSE OS" and select "Other general-purpose OS"

Select "Ubuntu"

Select "Ubuntu Server 22.04.X LTS (64-bit)"

Click "CHOOSE STORAGE" and select your SD Card/Hard Disk

Click on the icon

Change the system's hostname

Enable SSH and add your SSH public key

Set the install user and it's password

Set the locales and "Save"

Click on "WRITE"

Confirm the overwrite of all data on the drive

Wait for the Write process to finish

Configuration¶

Configure the system with Ansible¶

Info

During the first boot it take some time for the system to apply all the settings we requested. Before we do anything else make sure the cloud-init finished the setup.

Preparation¶

Before we can run the playbook make sure that the password we choose during the install matches the one in the password vault.

ansible-vault edit vault.yml

vault.yml

...
smilprpi0010_become_password: "Password choosen during install"
...

Run the initial SharpNET deployment role¶

Info

If you see an error message about the Host key make sure to delete the old host key with ssh-keygen, then add the new Host key by logging to the system via SSH.

ssh-keygen -f ~/.ssh/known_hosts -R "smilprpi0010.sharpnet.sdac"
ssh-keyscan -H "smilprpi0010.sharpnet.sdac" >> ~/.ssh/known_hosts

Warning

This playbook usually runs for a long time. On average the execution takes between 20-25 minutes.

ansible-playbook -i inventory.yml sharpnet.deployment.fresh_system \
-e shncmd_target_host=smilprpi0010.sharpnet.sdac -e shncfg_reboot=true

Check the Step CA status¶

sudo systemctl status step-ca

sudo systemctl status step-ca

● step-ca.service - step-ca
     Loaded: loaded (/etc/systemd/system/step-ca.service; enabled; vendor preset: enabled)
     Active: active (running) since Tue 2023-01-03 16:11:38 CET; 1s ago
   Main PID: 20168 (sh)
      Tasks: 10 (limit: 4414)
     Memory: 15.1M
        CPU: 312ms
     CGroup: /system.slice/step-ca.service
             ├─20168 /bin/sh -c "/usr/local/bin/step-ca /etc/step-ca/config/ca.json"
             └─20169 /usr/local/bin/step-ca /etc/step-ca/config/ca.json

Warning

If the service status show as activating for a long time we may have a problem with our step-ca installation.

● step-ca.service - step-ca
    Loaded: loaded (/etc/systemd/system/step-ca.service; enabled; vendor preset: enabled)
    Active: activating (auto-restart) (Result: exit-code) since Sun 2023-01-01 20:10:41 CET; 7s ago
    Process: 2364 ExecStart=/bin/sh -c /usr/local/bin/step-ca /etc/step-ca/config/ca.json (code=exited, status=2)
Main PID: 2364 (code=exited, status=2)
        CPU: 106ms

Follow these steps for troubleshooting.

Configure CoreDNS¶

Clone the CoreDNS¶

cd /srv/docker
git clone https://git.sharpnet.sdac/homelab/sharpnet-dns.git coredns

Start the CoreDNS container¶

cd /srv/docker/coredns
docker-compose up -d

Test that the DNS server is working¶

dig +noall +answer stepca.sharpnet.sdac @smilprpi0010.sharpnet.sdac

❯ dig +noall +answer stepca.sharpnet.sdac @smilprpi0010.sharpnet.sdac
stepca.sharpnet.sdac.   3600    IN      A       10.42.0.10

(Optional) Install the Argon One driver¶

Info

If the Raspberry case being used for the server is an Argon One only then we should install this driver.

curl https://download.argon40.com/argon1.sh | bash

Configure the Argon One fans¶

sudo argonone-config

--------------------------------------
Argon One Fan Speed Configuration Tool
--------------------------------------
WARNING: This will remove existing configuration.
Press Y to continue:y
Thank you.

Select fan mode:
  1. Always on
  2. Adjust to temperatures (55C, 60C, and 65C)
  3. Customize behavior
  4. Cancel
NOTE: You can also edit /etc/argononed.conf directly
Enter Number (1-4):2

Please provide fan speeds for the following temperatures:
55C (0-100 only):40
60C (0-100 only):60
65C (0-100 only):80
Configuration updated.