Update LIBVIRT_NVIDIA_JETSON_CLOUD_IMAGES.md

boxcutter · Jun 3, 2024 · 7664a21 · 7664a21
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commit 7664a21
Showing 1 changed file with 95 additions and 17 deletions.
diff --git a/docs/LIBVIRT_NVIDIA_JETSON_CLOUD_IMAGES.md b/docs/LIBVIRT_NVIDIA_JETSON_CLOUD_IMAGES.md
@@ -1,11 +1,60 @@
 # Libvirt cloud images on Nvidia Jetson
 
+# Create a storage pool for cloud-init boot images
+
+> **Note:**
+> There is a `--cloud-init` parameter for `virt-install` to auto-generate the
+> cloud-init ISO. It creates a pool called `boot-scratch` in
+> `/var/lib/libvirt/boot`. However oftentimes it's just easier to control the
+> lifecycle of these images manually
+
+```
+# Create the storage pool definition
+$ virsh pool-define-as \
+    --name boot-scratch \
+    --type dir \
+    --target /var/lib/libvirt/boot
+Pool iso defined
+
+# Create the local directory
+$ virsh pool-build boot-scratch
+# Start the storage pool
+$ virsh pool-start boot-scratch
+# Turn on autostart
+$ virsh pool-autostart boot-scratch
+
+# Verify the storage pool is listed
+$ virsh pool-list --all
+ Name           State    Autostart
+------------------------------------
+ boot-scratch   active   yes
+ default        active   yes
+ iso            active   yes
+
+$ virsh vol-list --pool boot-scratch --details
+ Name   Path   Type   Capacity   Allocation
+---------------------------------------------
+
+# Verify the storage pool configuration
+$ virsh pool-info boot-scratch
+Name:           boot-scratch
+UUID:           9e3bfda7-299e-4b40-8ce5-82a08f150368
+State:          running
+Persistent:     yes
+Autostart:      yes
+Capacity:       6.93 TiB
+Allocation:     121.86 GiB
+Available:      6.81 TiB
+```
+
 ## Download the Ubuntu Cloud Image
 ```
 # JetPack 5.x
+mkdir ~/ubuntu-server-2004 && cd ~/ubuntu-server-2004
 curl -LO https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-arm64.img
 
 # JetPack 6.x
+mkdir ~/ubuntu-server-2204 && cd ~/ubuntu-server-2204
 curl -LO https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-arm64.img
 
 $ qemu-img info jammy-server-cloudimg-arm64.img 
@@ -18,32 +67,51 @@ Format specific information:
     compat: 0.10
     refcount bits: 16
 
-sudo mkdir -p /var/lib/libvirt/images/ubuntu-server-2204
-sudo qemu-img convert -f qcow2 -O qcow2 jammy-server-cloudimg-arm64.img /var/lib/libvirt/images/ubuntu-server-2204/root-disk.qcow2
-sudo qemu-img resize -f qcow2 /var/lib/libvirt/images/ubuntu-server-2204/root-disk.qcow2 32G
+sudo qemu-img convert -f qcow2 -O qcow2 jammy-server-cloudimg-arm64.img /var/lib/libvirt/images/ubuntu-server-2204.qcow2
+sudo qemu-img resize -f qcow2 /var/lib/libvirt/images/ubuntu-server-2204.qcow2 32G
 ```
 
 ```
 touch network-config
-touch meta-data
+
+cat >meta-data <<EOF
+instance-id: ubuntu-server-2204
+local-hostname: ubuntu-server-2204
+EOF
+
+# openssl passwd -6 <password>
 cat >user-data <<EOF
 #cloud-config
-password: password
-chpasswd:
-  expire: False
-ssh_pwauth: True
+hostname: ubuntu-server-2204.corp.polymathrobotics.dev
+users:
+  - default
+  - name: automat
+    groups: users
+    shell: /bin/bash
+    passwd: $6$WmRgh/NiWY/OIot.$SY0X.EfPAVxzfAizOaua5j10HfacJbJEFnCh0M9T81nqm1i05.BaRx.p9KUqiJEptbS891kPpA7V3vbt6NaFS0
+    sudo: ALL=(ALL) NOPASSWD:ALL
+    lock_passwd: false
+    ssh_authorized_keys:
+      - <ssh pub key 1>
+packages:
+  - qemu-guest-agent
+growpart:
+  mode: auto
+  devices: ['/']
+power_state:
+  mode: reboot
 EOF
 ```
 
 ```
 sudo apt-get update
 sudo apt-get install genisoimage
-#     -input-charset utf-8 \
 genisoimage \
-    -output seed.img \
+    -input-charset utf-8 \
+    -output ubuntu-server-2204-cloud-init.img \
     -volid cidata -rational-rock -joliet \
     user-data meta-data network-config
-sudo cp seed.img /var/lib/libvirt/images/ubuntu-server-2204/seed.iso
+sudo cp ubuntu-server-2204-cloud-init.img /var/lib/libvirt/boot/ubuntu-server-2204-cloud-init.iso
 ```
 
 ```
@@ -54,11 +122,24 @@ virt-install \
   --memory 2048 \
   --vcpus 2 \
   --os-variant ubuntu20.04 \
-  --disk /var/lib/libvirt/images/ubuntu-server-2204/root-disk.qcow2,bus=virtio \
-  --disk /var/lib/libvirt/images/ubuntu-server-2204/seed.iso,device=cdrom \
+  --disk /var/lib/libvirt/images/ubuntu-server-2204.qcow2 \
+  --disk /var/lib/libvirt/boot/ubuntu-server-2204-cloud-init.iso,device=cdrom \
   --network network=host-network,model=virtio \
+  --noautoconsole \
+  --console pty,target_type=serial \
+  --import \
   --debug
 
+virsh console ubuntu-server-2204
+
+# Disable cloud-init
+$ sudo touch /etc/cloud/cloud-init.disabled
+
+$ cloud-init status
+status: disabled
+
+$ sudo shutdown -h now
+
 $ virsh domblklist ubuntu-server-2204
  Target   Source
 ----------------------------------------------------------------------
@@ -68,7 +149,7 @@ $ virsh domblklist ubuntu-server-2204
 $ virsh change-media ubuntu-server-2204 sda --eject
 Successfully ejected media.
 
-$ sudo rm /var/lib/libvirt/images/ubuntu-server-2204/seed.iso
+$ sudo rm /var/lib/libvirt/boot/ubuntu-server-2204-cloud-init.iso
 $ virsh edit ubuntu-server-2204
 # remove entry for the seed.iso
 <disk type='file' device='cdrom'>
@@ -78,9 +159,6 @@ $ virsh edit ubuntu-server-2204
     <readonly/>
     <address type='drive' controller='0' bus='0' target='0' unit='0'/>
 </disk>
-
-# disable cloud-init
-sudo touch /etc/cloud/cloud-init.disabled
 ```
 
 ## References