=====Photon OS=====
Photon OS is an open source Linux container host optimized for cloud-native applications, cloud platforms, and VMware infrastructure.

====Setup====
Setup minimal installed profile of PhotonOS

  * Download the latest Photon OS ''OVA with virtual hardware v15'' from [[https://github.com/vmware/photon/wiki/Downloading-Photon-OS]]
  * In ESXi:
    * ''Create/Register VM'':
      * ''Deploy a virtual machine from an OVF or OVA file''
      * Name the VM
      * Upload the Photon OS OVA file
      * Specify the desired ''Target Datastore''
      * Accept the License Agreement
      * Deselect ''Power on automatically''
      * Confirm settings and ''Finish''
    * Wait for the files to upload
    * If autostart is desired for this machine go to ''Host'' > ''Manage'' > ''System'' > ''Autostart'':
      * Click on the current VM
      * ''Enable''
      * Use ''Start earlier'' and ''Start later'' to set the desired order
    * Go to ''Virtual Machines'' on the sidebar and click on the current VM
    * ''Actions'' > ''Edit Settings'':
      * Set the required CPU and Memory requirements
      * If using NVMe storage for the datastore:
        * ''Add other device'' > ''NVMe controller''
        * ''Hard Disk 1'' > ''Controller location'' > ''NVMe controller 0''
        * Save and reopen ''Edit Settings''
        * Remove ''SCSI controller 0''
      * Select other appropriate VM settings depending on desired applications
    * Power on the VM, then shut it down again to generate a MAC address
    * Give the VM a static IP address from your router using the generated MAC address (found under ''Hardware Configuration'' > ''Network adapter 1'') and desired hostname
    * Power on the VM
    * Using an SSH client, connect to the hostname set above, then run:
<code bash>
# Login with root details from the VM note
# Follow instructions to set new password

# Remove docker related packages if not needed to save space and faster updates
tdnf erase containerd docker docker-cli docker-engine

# Update packages:
tdnf upgrade
tdnf clean all

# Disable password expiry:
chage -M -1 root

# Set new hostname:
hostnamectl set-hostname <hostname-as-set-in-router>

# Set the timezone to Perth
ln -sf /usr/share/zoneinfo/Australia/Perth /etc/localtime

# Change the SSH port to 50001:
sed -i "s/#Port 22/Port 50001/" /etc/ssh/sshd_config
sed -i "s/-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT/-A INPUT -p tcp -m tcp --dport 50001 -m state --state NEW -j ACCEPT/" /etc/systemd/scripts/ip4save

exit
</code>

    * Shut down the VM
    * Edit VM note to be the following:
<code>
Minimal installed profile of PhotonOS
User: root

Ports:
50001/tcp SSH
</code>
    * Save a snapshot called ''Base Install''

====Update====
  * If desired, Log in to ESXi, navigate to the photon based VM and create new temporary snapshot
  * Using an SSH client, connect to <hostname>:50001 then run:
<code bash>
tdnf upgrade
tdnf clean all
reboot  # If desired/needed
</code>