Added ability to resize disk.

- set RESIZE_DISK to true and DISK_SIZE to your desired size

virt-install-centos

@@ -12,9 +12,15 @@ if [ "$?" -eq 0 ]; then
     echo -n "[WARNING] $1 already exists.  "
     read -p "Do you want to overwrite $1 (y/[N])? " -r
     if [[ $REPLY =~ ^[Yy]$ ]]; then
-        echo ""
-        virsh destroy $1 > /dev/null
-        virsh undefine $1 > /dev/null
+        echo "$(date -R) Destroying the $1 domain..."
+        # Remove domain with the same name
+        virsh destroy $1 >> $1.log 2>&1
+        virsh undefine $1 >> $1.log 2>&1
+
+        echo "$(date -R) Destroying the $1 storage pool..."
+        # Remove the associated pool
+        virsh pool-destroy $1 >> $1.log 2>&1
+        virsh pool-undefine $1 >> $1.log 2>&1
     else
         echo -e "\nNot overwriting $1. Exiting..."
         exit 1
@@ -28,11 +34,15 @@ DIR=~/virt/images
 IMAGE=$DIR/CentOS-7-x86_64-GenericCloud.qcow2
 
 # Amount of RAM in MB
-MEM=768
+MEM=1024
 
 # Number of virtual CPUs
 CPUS=1
 
+# Disk Size
+RESIZE_DISK=false
+DISK_SIZE=20G
+
 # Cloud init files
 USER_DATA=user-data
 META_DATA=meta-data
@@ -51,12 +61,6 @@ pushd $DIR/$1 > /dev/null
     # Create log file
     touch $1.log
 
-    echo "$(date -R) Destroying the $1 domain (if it exists)..."
-
-    # Remove domain with the same name
-    virsh destroy $1 >> $1.log 2>&1
-    virsh undefine $1 >> $1.log 2>&1
-
     # cloud-init config: set hostname, remove cloud-init package,
     # and add ssh-key 
     cat > $USER_DATA << _EOF_
@@ -67,29 +71,34 @@ preserve_hostname: False
 hostname: $1
 fqdn: $1.example.local
 
-# Remove cloud-init when finished with it
-runcmd:
-  - [ yum, -y, remove, cloud-init ]
-
 # Configure where output will go
 output: 
   all: ">> /var/log/cloud-init.log"
 
 # configure interaction with ssh server
-ssh_svcname: ssh
-ssh_deletekeys: True
-ssh_genkeytypes: ['rsa', 'ecdsa']
+ssh_genkeytypes: ['ed25519', 'rsa']
 
 # Install my public ssh key to the first user-defined user configured 
 # in cloud.cfg in the template (which is centos for CentOS cloud images)
 ssh_authorized_keys:
   - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDBil2QzORhDcnKiVVNpO5daOSYVp8nshcIc7aTEkdlqCRir2Oni8BEStK7x7bvh0jrp9KptlHPeos87fQs//VXEb1FEprL2c6fPWmVdtjmYw3yzSkaFKMksL7FdUoEiwF6t8pQAg2mU0Qj9emSHBKg5ttdGqNoSvXc92k7iOzgauda7jdNak+Dx9dPhR3FJwHMcZSlQHO4cweZcK63bZitxlFkJ/FJdry/TBirDhRcXslOJ3ECU2xiyRXJVPs3VNLjMdOTTAoMmZj+GraUBbQ9VIqe683xe02sM83th5hj2C4gW3qXUoFkNLfKAMRxXLRMEwI3ABFB/AAUhACxyTJp giovanni@throwaway
+
+# Remove cloud-init when finished with it
+#runcmd:
+#  - [ yum, -y, remove, cloud-init ]
 _EOF_
 
     echo "instance-id: $1; local-hostname: $1" > $META_DATA
 
-    echo "$(date -R) Copying template image..."
+    echo "$(date -R) Copying cloud image..."
     cp $IMAGE $DISK
+    if $RESIZE_DISK
+    then
+        echo "$(date -R) Resizing the disk to $DISK_SIZE..."
+        qemu-img create -f qcow2 -o preallocation=metadata $DISK.new $DISK_SIZE >> $1.log 2>&1
+        virt-resize --quiet --expand /dev/sda1 $DISK $DISK.new >> $1.log 2>&1
+        mv $DISK.new $DISK
+    fi
 
     # Create CD-ROM ISO with cloud-init config
     echo "$(date -R) Generating ISO for cloud-init..."
@@ -97,14 +106,23 @@ _EOF_
 
     echo "$(date -R) Installing the domain and adjusting the configuration..."
     echo "[INFO] Installing with the following parameters:"
-    echo "virt-install --import --name $1 --ram $MEM --vcpus $CPUS --disk
-    $DISK,format=qcow2,bus=virtio --disk $CI_ISO,device=cdrom --network
-    bridge=virbr0,model=virtio --os-type=linux --os-variant=rhel7 --noautoconsole"
+    echo "    virt-install --import --name $1 --ram $MEM --vcpus $CPUS --disk \
+        $DISK,format=qcow2,bus=virtio --disk $CI_ISO,device=cdrom --network \
+        bridge=virbr0,model=virtio --os-type=linux --os-variant=rhel7 --noautoconsole"
 
     virt-install --import --name $1 --ram $MEM --vcpus $CPUS --disk \
     $DISK,format=qcow2,bus=virtio --disk $CI_ISO,device=cdrom --network \
     bridge=virbr0,model=virtio --os-type=linux --os-variant=rhel7 --noautoconsole
 
+    virsh dominfo $1 >> $1.log 2>&1
+
+    # Eject cdrom
+    echo "$(date -R) Cleaning up cloud-init..."
+    virsh change-media $1 hda --eject --config >> $1.log
+
+    # Remove the unnecessary cloud init files
+    rm $USER_DATA $META_DATA $CI_ISO
+
     MAC=$(virsh dumpxml $1 | awk -F\' '/mac address/ {print $2}')
     while true
     do
@@ -118,13 +136,6 @@ _EOF_
         fi
     done
 
-    # Eject cdrom
-    echo "$(date -R) Cleaning up cloud-init..."
-    virsh change-media $1 hda --eject --config >> $1.log
-
-    # Remove the unnecessary cloud init files
-    rm $USER_DATA $CI_ISO
-
     echo "$(date -R) DONE. SSH to $1 using $IP with  username 'centos'."
 
-popd > /dev/null
+popd > /dev/null