1 files changed, 92 insertions(+), 0 deletions(-)

A kvmgr.sh

@@ 1,92 @@
+#!/bin/bash 
+set -eo pipefail
+
+# PREP: 
+# arch: pacman -S libvirt qemu ebtables dmidecode libguestfs virt-install cpio cloud-utils edk2-ovmf
+
+
+# --> Setup environment
+source ./settings.conf
+NOW=$(date +"%Y-%m-%d")
+
+# --> Parse arguments: 
+if [ -z $1 ]; then 
+    echo "Command help: "
+    exit 1
+fi
+
+while [[ "$#" -gt 0 ]]; do 
+case $1 in 
+    -c|--cpus) CPUS=$2 ;;
+    -m|--mem ) MEM=$2 ;;
+    -d|--disk) DISK=$2 ;;
+    -i|--net ) NET=$2 ;;
+    -o|--os  ) OS=$2 ;;
+    -n|--name) NAME=$2;;
+    *);;
+esac
+shift
+done; 
+
+echo -e "System Parameters:\n -> cpus=$CPUS\n -> mem=$MEM \n -> disk=$DISK \n -> net=$NET \n -> os=$OS \n -> name=$NAME"
+
+# Expand the path
+BASEPATH=$(readlink --canonicalize ~/virt)
+
+# Check if image exists, and download if needed. 
+IMGPATH="$BASEPATH/images/$OS-server-cloudimg-amd64.img"
+
+if [ -f $BASEPATH/images/$OS-server-cloudimg-amd64.img ]; then 
+    echo "[+] Image present: $OS-server-cloudimg-amd64.img"
+else
+    echo "[!] Image does not exist. Downloading new cloudimg to: $BASEPATH/images/$OS-server-cloudimg-amd64.img"
+    wget https://cloud-images.ubuntu.com/$OS/current/$OS-server-cloudimg-amd64.img -O $BASEPATH/images/$OS-server-cloudimg-amd64.img
+fi 
+
+
+# Create the VM disk and initialize the metadata image
+if [ -f $BASEPATH/vms/$NAME/$NAME.qcow2 ]; then 
+    echo "[!] VM Image already exists. Stopping here to prevent data loss!"
+    exit 1 
+fi 
+
+mkdir -p $BASEPATH/vms/$NAME/
+qemu-img convert -f qcow2 $BASEPATH/images/$OS-server-cloudimg-amd64.img $BASEPATH/vms/$NAME/$NAME.qcow2
+qemu-img resize $BASEPATH/vms/$NAME/$NAME.qcow2 $DISK
+
+# Create cloud-config file
+echo "[+] Creating cloud-config file"
+cat << EOF > $BASEPATH/vms/$NAME/cloud-config.yml
+#cloud-config
+hostname: $NAME
+ssh_pwauth: False
+password: $AUTH_PASSWD
+chpasswd: { expire: False }
+manage_etc_hosts: true
+users: 
+- default
+- name:     $AUTH_USERNAME
+  sudo:     ALL=(ALL) NOPASSWD:ALL
+  groups:   sudo
+  shell:    /bin/bash
+  lock_passwd: true 
+  ssh_authorized_keys: 
+    - $AUTH_PUBKEY
+EOF
+
+# Create cloud-config device
+cloud-localds $BASEPATH/vms/$NAME/metadata.img $BASEPATH/vms/$NAME/cloud-config.yml
+
+# Spin up the VM
+echo "[+] Starting VM import..."
+virt-install --connect qemu:///system \
+    --name $NAME \
+    --memory $MEM \
+    --vcpus $CPUS \
+    --disk $BASEPATH/vms/$NAME/$NAME.qcow2,device=disk,bus=virtio \
+    --disk $BASEPATH/vms/$NAME/metadata.img,device=cdrom \
+    --os-type linux \
+    --os-variant ubuntu20.04 \
+    --virt-type kvm \
+    --graphics none \
+    --network network=default,model=virtio --import