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 # fedora-coreos-proxmox
 
-Fedora CoreOS template on proxmox
\ No newline at end of file
+Fedora CoreOS template for proxmox
+
+## Create FCOS VM Template
+
+### Configuration
+
+* **vmsetup.sh**
+
+```
+TEMPLATE_VMID="1000"                     # Template Proxmox VMID 
+TEMPLATE_VMSTORAGE="thin-ssd"           # Proxmox storage  
+SNIPPET_STORAGE="local"                 # Snippets storage for hook and ignition file
+VMDISK_OPTIONS=",discard=on"            # Add options to vmdisk
+```
+
+* **fcos-base-tmplt.yaml**
+
+The ignition file provided is only a working basis.
+For a more advanced configuration go to https://docs.fedoraproject.org/en-US/fedora-coreos/
+
+it contains :
+
+* Correct fstrim service with no fstab file
+* Install qemu-guest-agent on first boot
+* Install Geco-iT CloudInit wrapper
+* Raise console message logging level from DEBUG (7) to WARNING (4)
+* Add Geco-iT motd/issue
+
+### Script output
+```
+root@vc0:/opt/fcos-tmplt# ./vmsetup.sh 
+Check if vm storage thin-ssd exist... [ok]
+Check if snippet storage local exist... [ok]
+Copy hook-script and ignition config to snippet storage...
+'fcos-base-tmplt.yaml' -> '/var/lib/vz/snippets/fcos-base-tmplt.yaml'
+'hook-fcos.sh' -> '/var/lib/vz/snippets/hook-fcos.sh'
+Get storage "thin-ssd" type... [block]
+Download fedora coreos...
+fedora-coreos-32.20201018.3.0-qemu.x86_64.qcow2.xz  100%[=================>] 524.11M  59.8MB/s    in 8.5s    
+fedora-coreos-32.20201018.3.0-qemu.x86_64.qcow2.xz (1/1)
+  100 %      524.1 MiB / 1779.8 MiB = 0.294    55 MiB/s       0:32             
+Create fedora coreos vm 
+update VM 900: -agent enabled=1 -autostart 1 -boot c -bootdisk scsi0 -cores 4 -cpu host -memory 4096 -onboot 1 -ostype l26 -tablet 0
+update VM 900: -description Fedora CoreOS - Geco-iT Template
+
+ - Version             : 32.20201018.3.0
+ - Cloud-init          : true
+
+Creation date : 2020-11-26
+
+update VM 900: -net0 virtio,bridge=vmbr0
+
+Create Cloud-init vmdisk...
+update VM 900: -ide2 thin-ssd:cloudinit
+importing disk 'fedora-coreos-32.20201018.3.0-qemu.x86_64.qcow2' to VM 900 ...
+transferred: 0 bytes remaining: 8589934592 bytes total: 8589934592 bytes progression: 0.00 %
+transferred: 91053306 bytes remaining: 8498881286 bytes total: 8589934592 bytes progression: 1.06 %
+transferred: 178670639 bytes remaining: 8411263953 bytes total: 8589934592 bytes progression: 2.08 %
+...
+transferred: 8589934592 bytes remaining: 0 bytes total: 8589934592 bytes progression: 100.00 %
+Successfully imported disk as 'unused0:thin-ssd:vm-900-disk-0'
+update VM 900: -scsi0 thin-ssd:vm-900-disk-0,discard=on -scsihw virtio-scsi-pci
+update VM 900: -hookscript local:snippets/hook-fcos.sh
+Convert VM 900 in proxmox vm template... [done]
+```
+
+## Operation
+
+Before starting an FCOS VM, we create an ignition file by merging the data from the cloudinit and the fcos-base-tmplt.yaml file.
+Then we modify the configuration of the vm to add the loading of the ignition file and we reset the start of the vm.
+
+<p align="center">
+  <img src="./screenshot/fcos_proxmox_first_start.png" alt="">
+</p>
+
+During the first boot the vm will install qemu-agent and will restart.
+Warning, for that the network must be operational
+
+## CloudInit
+
+Only these parameters are supported by our cloudinit wrapper:
+
+* User (only one) default = admin
+* Passwd
+* DNS domain
+* DNS Servers
+* SSH public key
+* IP Configuration (ipv4 only)
+
+The settings are applied at boot
diff --git a/screenshot/fcos_proxmox_first_start.png b/screenshot/fcos_proxmox_first_start.png
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