Compare commits

...

4 Commits

Author SHA1 Message Date
c9e5b68eba Merge pull request 'develop pull requesy' (#1) from develop into main
Reviewed-on: #1
2025-07-17 17:47:56 +02:00
c0115efbc2 Workspace cleaned 2025-07-17 17:43:29 +02:00
b99db7713c Refactorized scripts 2025-07-17 17:39:48 +02:00
e2c3ec0f13 Added external .json file for related guest os info 2025-07-16 19:16:45 +02:00
18 changed files with 627 additions and 565 deletions

View File

@ -113,3 +113,15 @@ VM 'ubuntuTest' removed successfully.
## TODO ## TODO
- FreeBSD support is still in progress - FreeBSD support is still in progress
- Check if used commands are available
./vm_create.sh: línea 52: mkpasswd: orden no encontrada
./vm_create.sh: línea 259: virt-install: orden no encontrada
./vm_create.sh: línea 261: virsh: orden no encontrada
qemu-img wget curl mkpass arp
sudo apt install --no-install-recommends qemu-system libvirt-clients libvirt-daemon-system whois virtinst net-tools
sudo chmod 750 /home/victor
sudo usermod -a -G libvirt $(whoami)
sudo usermod --append --groups earl libvirt-qemu
- Refactoring variables, functions and scripts calls for legibility and maintenance
- add script for create default files (network, variables etc)

16
env_scripts/common.sh Normal file
View File

@ -0,0 +1,16 @@
#!/bin/env bash
LIBVIRT_NET_MODEL="virtio"
LIBVIRT_NET_OPTION="network=$VM_NETWORK,model=$LIBVIRT_NET_MODEL"
OS_JSON_FILE="files/os_options.json"
#VM_BASE_DIR=${VM_BASE_DIR:-"${HOME}/.local/share/libvirt"}
#VM_BASE_DIR=${VM_BASE_DIR:-"${HOME}/var/lib/libvirt"}
VM_BASE_DIR="${HOME}/vms"
VM_BASE_IMAGES="base"
VM_DISK_EXTENSION="img"
VM_USERNAME="user"
VM_IMAGE_PATH="${VM_BASE_DIR}/images/$1.img"
CI_IMAGE_PATH="${VM_BASE_DIR}/images/$1-cidata.iso"
VM_NETWORK="vmnetwork"
REPO_BRANCH="main"
REPO_SOURCE="https://raw.githubusercontent.com/vgenguita/kvm-cloudimage/refs/heads/${REPO_BRANCH}/env_scripts/"

279
env_scripts/functions.sh Normal file
View File

@ -0,0 +1,279 @@
#!/bin/env bash
# Functions
check_host_os()
{
local HOST_OS=$(cat /etc/os-release | grep -v VERSION_ID |grep "ID=" | awk -F'=' '{print $2}')
if [ $HOST_OS == "debian" ]; then
source env_scripts/older_os.sh
else
source env_scripts/newer_os.sh
fi
}
show_vm_menu()
{
# Show dinamic menu
echo "Select VM OS:"
for entry in $(jq -r '.os_variants[] | @base64' "$OS_JSON_FILE"); do
decoded=$(echo "$entry" | base64 --decode)
id=$(echo "$decoded" | jq -r .id)
name=$(echo "$decoded" | jq -r .name)
echo "$id. $name"
done
# ID_MAX calculation
ID_MAX=$(jq -r '[.os_variants[].id] | max' "$OS_JSON_FILE")
# Read input
read -r -p "Enter your choice [1-${ID_MAX}]: " answer
if ! [[ "$answer" =~ ^[0-9]+$ ]] || (( answer < 1 || answer > ID_MAX )); then
echo "Invalid option. Please enter a number between 1 and ${ID_MAX}."
exit 1
fi
selected=$(jq -r ".os_variants[] | select(.id == $answer)" "$OS_JSON_FILE")
if [ -z "$selected" ]; then
echo "Invalid option."
exit 1
fi
# Asignar variables
VM_OS_VARIANT=$(echo "$selected" | jq -r .variant)
VM_BASE_IMAGE_URL=$(echo "$selected" | jq -r .url)
VM_BASE_IMAGE=$(echo "$selected" | jq -r .origin_image_name)
VM_BOOT_TYPE=$(echo "$selected" | jq -r .boot_type)
VM_CHECKSUMS_URL=$(echo "$selected" | jq -r .md5sum)
}
compare_checksum()
{
CHECKSUM_TMP_FOLDER=$(mktemp)
curl -s -o "${CHECKSUM_TMP_FOLDER}" "${VM_CHECKSUMS_URL}"
VM_BASE_IMAGE_CHECKSUM=$(grep "$VM_BASE_IMAGE_NAME.${VM_BASE_IMAGE_EXTENSION}" "${CHECKSUM_TMP_FOLDER}" | awk '{print $1}')
if [[ "${VM_CHECKSUMS_URL}" == *"SHA256SUMS"* ]]; then
HASH_CMD="sha256sum"
elif [[ "${VM_CHECKSUMS_URL}" == *"SHA512SUMS"* ]]; then
HASH_CMD="sha512sum"
else
echo "ERROR: Unknown checksum type in URL: $CHECKSUM_URL"
exit 1
fi
BASE_FILE_CHECKSUM=$(${HASH_CMD} ${VM_BASE_IMAGE_LOCATION} | awk '{print $1}')
if [ "${BASE_FILE_CHECKSUM}" = "${VM_BASE_IMAGE_CHECKSUM}" ]; then
echo "Checksum OK: ${BASE_FILE_CHECKSUM}"
else
echo "ERROR: MD5 checksum does NOT match!"
echo "Expected: ${VM_BASE_IMAGE_CHECKSUM}"
echo "Got: ${BASE_FILE_CHECKSUM}"
exit 1
fi
}
## List Installed VMS
vm_list()
{
virsh list
}
vm_net_get_mac()
{
local VM=$1
MAC_VM=$(virsh domiflist "$VM" | awk '{ print $5 }' | tail -2 | head -1)
echo $MAC_VM
}
## Get VM ip (only on NAT)
vm_net_get_ip()
{
local VM="$1"
# Obtener la dirección MAC de la interfaz de red
MAC_VM=$(vm_net_get_mac $VM)
if [[ -z "$MAC_VM" ]]; then
echo "Error: No se pudo encontrar la dirección MAC para '$VM'"
return 1
fi
# Obtener la dirección IP a partir de la dirección MAC
VM_IP_ADDRESS=$(arp -a | grep "$MAC_VM" | awk '{ print $2 }' | sed 's/[()]//g')
if [[ -z "$VM_IP_ADDRESS" ]]; then
echo "Error: No se pudo encontrar la dirección IP para la dirección MAC '$MAC_VM'"
return 1
fi
echo "$VM_IP_ADDRESS"
}
vm_net_create_netplan()
{
local VM=$1
local MAV_VM=$2
cat <<EOF > "$VM_BASE_DIR/init/${VM}-netplan"
# This file is generated from information provided by the datasource. Changes
# to it will not persist across an instance reboot. To disable cloud-init's
# network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
ethernets:
enp1s0:
addresses:
- ${IP}/24
nameservers:
addresses:
- 208.67.222.222
- 208.67.220.220
match:
macaddress: ${MAC_VM}
set-name: enp1s0
version: 2
EOF
}
vm_net_bridge_set_ip()
{
local VM="$1"
local IP="$2"
MAC_VM=$(vm_net_get_mac "$VM")
CURRENT_IP=$(vm_net_get_ip "$VM")
define_netplan
# Obtener la dirección IP de la máquina virtual
scp -i ${VM_BASE_DIR}/ssh/${VM} \
-r $VM_BASE_DIR/init/${VM}-netplan \
${VM_USERNAME}@${CURRENT_IP}:50-cloud-init.yaml
ssh -i ${VM_BASE_DIR}/ssh/${VM} -l${VM_USERNAME} ${CURRENT_IP} "bash -s" -- < ../vm_example_scripts/apply_netplan.sh
}
vm_net_set_bridge_mode()
{
if [[ -n $VM_BRIDGE_INT ]]; then
LIBVIRT_NET_OPTION="model=virtio,bridge=${VM_BRIDGE_INT}"
fi
}
## Connect to an existent VM using ssh
vm_connect()
{
local VM=$1
local VM_IP=$(vm_net_get_ip "$VM")
ssh -i ${VM_BASE_DIR}/ssh/${VM} -l${VM_USERNAME} ${VM_IP}
}
## Delete VM
vm_delete ()
{
local VM=$1
echo "VM: $VM"
if [[ -f "$VM_IMAGE_PATH" ]]; then
# Safely remove the VM with confirmation
read -p "Are you sure you want to remove the VM '$VM' (y/N)? " confirm
if [[ "$confirm" =~ ^[Yy]$ ]]; then
# Attempt to stop the VM before deleting
virsh destroy "$VM" 2>/dev/null || true
# Delete VM definition and associated images
virsh undefine "$VM" 2>/dev/null || true
rm -fv "$VM_IMAGE_PATH" "$CI_IMAGE_PATH"
rm ${VM_BASE_DIR}/xml/$1.xml
rm ${VM_BASE_DIR}/ssh/$1
rm ${VM_BASE_DIR}/ssh/$1.pub
rm ${VM_BASE_DIR}/init/$1-user-data
rm ${VM_BASE_DIR}/init/$1-meta-data
else
echo "VM removal cancelled."
fi
else
# Handle case where VM image is not found
echo "Cannot find VM image file '$VM_IMAGE_PATH'. No action taken."
fi
}
vm_download_base_image()
{
VM_BASE_IMAGE_NAME=${VM_BASE_IMAGE%%.*}
VM_BASE_IMAGE_EXTENSION=${VM_BASE_IMAGE#*.}
VM_BASE_IMAGE_LOCATION="${VM_BASE_DIR}/${VM_BASE_IMAGES}/${VM_BASE_IMAGE_NAME}.${VM_BASE_IMAGE_EXTENSION}"
if ! test -f "${VM_BASE_IMAGE_LOCATION}"; then
wget -O "${VM_BASE_IMAGE_LOCATION}" ${VM_BASE_IMAGE_URL}
fi
}
vm_create_guest_image()
{
echo "Creating a qcow2 image file ${VM_BASE_DIR}/images/${VM_HOSTNAME}.${VM_DISK_EXTENSION} that uses the cloud image file ${VM_BASE_IMAGE_LOCATION} as its base"
if ! test -f "${VM_BASE_DIR}/images/${VM_HOSTNAME}.${VM_DISK_EXTENSION}"; then
qemu-img convert \
-O qcow2 \
"${VM_BASE_IMAGE_LOCATION}" \
"${VM_BASE_DIR}/images/${VM_HOSTNAME}.${VM_DISK_EXTENSION}"
qemu-img resize \
"${VM_BASE_DIR}/images/${VM_HOSTNAME}.${VM_DISK_EXTENSION}" \
"${VM_DISK_SIZE}G"
sudo chown -R $USER:libvirt-qemu "${VM_BASE_DIR}/images/${VM_HOSTNAME}.${VM_DISK_EXTENSION}"
else
echo "${VM_BASE_DIR}/images/${VM_HOSTNAME}.${VM_DISK_EXTENSION} already exists. Delete VM with "delete" option"
exit 1
fi
}
vm_generate_ssh_hey()
{
ssh-keygen -t rsa -b 4096 -N '' -f "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}"
chmod 600 ${VM_BASE_DIR}/ssh/${VM_HOSTNAME}.pub
SSH_PUB_KEY=$(cat "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}.pub")
#ssh-keygen -y -f "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}" > "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}".pub.txt
#SSH_PUB_KEY=$(cat "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}".pub.txt)
#rm "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}".pub.txt
}
vm_gen_linux_user_data()
{
VM_USER_PASS=$(tr -dc A-Za-z0-9 </dev/urandom | head -c 8; echo)
VM_USER_PASS_HASH=$(mkpasswd --method=SHA-512 --rounds=4096 ${VM_USER_PASS})
cat <<EOF > "$VM_BASE_DIR/init/${VM_HOSTNAME}-user-data"
#cloud-config
hostname: ${VM_HOSTNAME}
# manage_etc_hosts: false
ssh_pwauth: true
disable_root: true
users:
- name: ${VM_USERNAME}
hashed_passwd: ${VM_USER_PASS_HASH}
sudo: ALL=(ALL) NOPASSWD:ALL
shell: /bin/bash
lock-passwd: false
ssh_authorized_keys:
- ${SSH_PUB_KEY}
EOF
}
vm_gen_user_data()
{
VM_USER_PASS=$(tr -dc A-Za-z0-9 </dev/urandom | head -c 8; echo)
VM_USER_PASS_HASH=$(mkpasswd --method=SHA-512 --rounds=4096 ${VM_USER_PASS})
cp files/user-data "$VM_BASE_DIR/init/${VM_HOSTNAME}-user-data"
sed -i "s|__SSH_KEY__|${SSH_PUB_KEY}|g" "$VM_BASE_DIR/init/${VM_HOSTNAME}-user-data"
sed -i "s| __USER_PASSWORD__|${VM_USER_PASS_HASH}|g" "$VM_BASE_DIR/init/${VM_HOSTNAME}-user-data"
}
vm_gen_meta_data()
{
cp files/meta-data "$VM_BASE_DIR/init/${VM_HOSTNAME}-meta-data"
sed -i "s|__VMname__|${VM_HOSTNAME}|g" "$VM_BASE_DIR/init/${VM_HOSTNAME}-meta-data"
}
vm_guest_install()
{
VM_INSTALL_OPTS=""
VM_INSTALL_OPTS="${VM_INSTALL_OPTS} --name ${VM_HOSTNAME}"
VM_INSTALL_OPTS="${VM_INSTALL_OPTS} --memory ${VM_MEM_SIZE}"
VM_INSTALL_OPTS="${VM_INSTALL_OPTS} --vcpus ${VM_VCPUS}"
VM_INSTALL_OPTS="${VM_INSTALL_OPTS} --os-variant=${VM_OS_VARIANT}"
VM_INSTALL_OPTS="${VM_INSTALL_OPTS} --disk ${VM_BASE_DIR}/images/${VM_HOSTNAME}.img,device=disk,bus=virtio"
VM_INSTALL_OPTS="${VM_INSTALL_OPTS} --network ${LIBVIRT_NET_OPTION}"
VM_INSTALL_OPTS="${VM_INSTALL_OPTS} --autostart"
VM_INSTALL_OPTS="${VM_INSTALL_OPTS} --import --noautoconsole"
VM_INSTALL_OPTS="${VM_INSTALL_OPTS} --cloud-init user-data=${VM_BASE_DIR}/init/${VM_HOSTNAME}-user-data,meta-data=$VM_BASE_DIR/init/${VM_HOSTNAME}-meta-data"
if [ "$VM_BOOT_TYPE" = "UEFI" ]; then
VM_INSTALL_OPTS="${VM_INSTALL_OPTS} --boot uefi"
fi
eval virt-install $VM_INSTALL_OPTS
virsh dumpxml "${VM_HOSTNAME}" > "${VM_BASE_DIR}/xml/${VM_HOSTNAME}.xml"
}

2
files/meta-data Normal file
View File

@ -0,0 +1,2 @@
instance-id: __VMname__
local-hostname: __VMname__

14
files/network.xml Normal file
View File

@ -0,0 +1,14 @@
<network>
<name>YOURNETWORK</name>
<forward mode='nat'>
<nat>
<port start='1024' end='65535'/>
</nat>
</forward>
<bridge name='virbr1' stp='on' delay='0'/>
<ip address='192.168.100.1' netmask='255.255.255.0'>
<dhcp>
<range start='192.168.100.100' end='192.168.100.254'/>
</dhcp>
</ip>
</network>

68
files/os_options.json Normal file
View File

@ -0,0 +1,68 @@
{
"os_variants": [
{
"id": 1,
"name": "Debian 12",
"variant": "$GUEST_OS_TYPE_DEBIAN",
"url": "https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-generic-amd64.qcow2",
"origin_image_name": "debian-12-generic-amd64.qcow2",
"md5sum": "https://cdimage.debian.org/images/cloud/bookworm/latest/SHA512SUMS",
"boot_type": "bios"
},
{
"id": 2,
"name": "Ubuntu 20.04 server",
"variant": "ubuntu20.04",
"url": "https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64.img",
"origin_image_name": "focal-server-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/focal/current/SHA256SUMS",
"boot_type": "bios"
},
{
"id": 3,
"name": "Ubuntu 20.04 minimal",
"variant": "ubuntu20.04",
"url": "https://cloud-images.ubuntu.com/minimal/releases/focal/release/ubuntu-20.04-minimal-cloudimg-amd64.img",
"origin_image_name": "ubuntu-20.04-minimal-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/minimal/releases/focal/release/SHA256SUMS",
"boot_type": "bios"
},
{
"id": 4,
"name": "Ubuntu 22.04 server",
"variant": "ubuntu22.04",
"url": "https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-amd64.img",
"origin_image_name": "jammy-server-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/jammy/current/SHA256SUMS",
"boot_type": "uefi"
},
{
"id": 5,
"name": "Ubuntu 22.04 minimal",
"variant": "ubuntu22.04",
"url": "https://cloud-images.ubuntu.com/minimal/releases/jammy/release/ubuntu-22.04-minimal-cloudimg-amd64.img",
"origin_image_name": "ubuntu-22.04-minimal-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/minimal/releases/jammy/release/SHA256SUMS",
"boot_type": "uefi"
},
{
"id": 6,
"name": "Ubuntu 24.04 server",
"variant": "ubuntu22.04",
"url": "https://cloud-images.ubuntu.com/noble/current/noble-server-cloudimg-amd64.img",
"origin_image_name": "noble-server-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/noble/current/SHA256SUMS",
"boot_type": "uefi"
},
{
"id": 7,
"name": "Ubuntu 24.04 minimal",
"variant": "ubuntu22.04",
"url": "https://cloud-images.ubuntu.com/minimal/releases/noble/release/ubuntu-24.04-minimal-cloudimg-amd64.img",
"origin_image_name": "ubuntu-24.04-minimal-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/minimal/releases/noble/release/SHA256SUMS",
"boot_type": "uefi"
}
]
}

12
files/user-data Normal file
View File

@ -0,0 +1,12 @@
ssh_pwauth: true
disable_root: true
users:
- name: user
ssh_authorized_keys:
- __SSH_KEY__
sudo: ["ALL=(ALL) NOPASSWD:ALL"]
groups: sudo
shell: /bin/bash
hashed_passwd: __USER_PASSWORD__
lock-passwd: false

13
install.sh Normal file
View File

@ -0,0 +1,13 @@
#!/bin/env bash
#Define variable names on env_scripts/common.sh
#VM_NETWORK=
#VM_BASE_DIR=
#Install dependencies - TODO
source variables/common.sh
mkdir -p "${VM_BASE_DIR}"/{images,xml,init,base,ssh}
cp files/network.xml ${VM_BASE_DIR}/xml/network.xml
sed -i "s/YOURNETWORK/${VM_NETWORK}/g" ${VM_BASE_DIR}/xml/network.xml
virsh net-define ${VM_BASE_DIR}/xml/network.xml
virsh net-autostart ${VM_NETWORK}
virsh net-start ${VM_NETWORK}

View File

68
os_option_test.json Normal file
View File

@ -0,0 +1,68 @@
{
"os_variants": [
{
"id": 1,
"name": "Debian 12",
"variant": "$GUEST_OS_TYPE_DEBIAN",
"url": "https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-generic-amd64.qcow2",
"origin_image_name": "debian-12-generic-amd64.qcow2",
"md5sum": "https://cdimage.debian.org/images/cloud/bookworm/latest/SHA512SUMS",
"boot_type": "bios"
},
{
"id": 2,
"name": "Ubuntu 20.04 server",
"variant": "ubuntu20.04",
"url": "https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64.img",
"origin_image_name": "focal-server-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/focal/current/SHA256SUMS",
"boot_type": "bios"
},
{
"id": 3,
"name": "Ubuntu 20.04 minimal",
"variant": "ubuntu20.04",
"url": "https://cloud-images.ubuntu.com/minimal/releases/focal/release/ubuntu-20.04-minimal-cloudimg-amd64.img",
"origin_image_name": "ubuntu-20.04-minimal-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/minimal/releases/focal/release/SHA256SUMS",
"boot_type": "bios"
},
{
"id": 4,
"name": "Ubuntu 22.04 server",
"variant": "ubuntu22.04",
"url": "https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-amd64.img",
"origin_image_name": "jammy-server-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/jammy/current/SHA256SUMS",
"boot_type": "uefi"
},
{
"id": 5,
"name": "Ubuntu 22.04 minimal",
"variant": "ubuntu22.04",
"url": "https://cloud-images.ubuntu.com/minimal/releases/jammy/release/ubuntu-22.04-minimal-cloudimg-amd64.img",
"origin_image_name": "ubuntu-22.04-minimal-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/minimal/releases/jammy/release/SHA256SUMS",
"boot_type": "uefi"
},
{
"id": 6,
"name": "Ubuntu 24.04 server",
"variant": "ubuntu22.04",
"url": "https://cloud-images.ubuntu.com/noble/current/noble-server-cloudimg-amd64.img",
"origin_image_name": "noble-server-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/noble/current/SHA256SUMS",
"boot_type": "uefi"
},
{
"id": 7,
"name": "Ubuntu 24.04 minimal",
"variant": "ubuntu22.04",
"url": "https://cloud-images.ubuntu.com/minimal/releases/noble/release/ubuntu-24.04-minimal-cloudimg-amd64.img",
"origin_image_name": "ubuntu-24.04-minimal-cloudimg-amd64.img",
"md5sum": "https://cloud-images.ubuntu.com/minimal/releases/noble/release/SHA256SUMS",
"boot_type": "uefi"
}
]
}

View File

@ -1,23 +0,0 @@
#!/bin/env bash
#Variables
VM="$1"
VM_BASE_DIR=${VM_BASE_DIR:-"${HOME}/vms"}
VM_USER="user"
#Functions
usage() {
cat << EOF
USO: $0 VM
Este script conecta por ssh con la maquina virtual seleccionada.
EOF
}
connect_vm() {
local VM_IP=$(./vm_get_ip.sh ${VM})
ssh -i ${VM_BASE_DIR}/ssh/${VM} -l${VM_USER} ${VM_IP}
}
if [[ -z "$VM" ]]; then
usage
exit 1
fi
connect_vm

View File

@ -1,289 +0,0 @@
#!/bin/env bash
VM_HOSTNAME=
VM_BASE_DIR=${VM_BASE_DIR:-"${HOME}/vms"}
VM_DISK_SIZE=20
VM_DISK_FORMAT=qcow2
VM_MEM_SIZE=2048
VM_VCPUS=2
VM_BASE_IMAGE=
VM_OS_VARIANT=
VM_USERNAME="user"
VM_BRIDGE_INT=
VM_NET_USED="PU-internalTests"
LIBVIRT_NET_OPTION="network=$VM_NET_USED,model=e1000"
HAT_STREAM="stable"
# Functions
usage()
{
cat << EOF
usage: $0 options
Quickly create guest VMs using cloud image files and cloud-init.
OPTIONS:
-h Show this message
-n Host name (required)
-b bridge interface name (bridge network is used)
-r RAM in MB (defaults to ${VM_MEM_SIZE})
-c Number of VCPUs (defaults to ${VM_VCPUS})
-s Amount of storage to allocate in GB (defaults to ${VM_DISK_SIZE})
-v Verbose
EOF
}
HOST_OS=$(cat /etc/os-release | grep -v VERSION_ID |grep "ID=" | awk -F'=' '{print $2}')
if [ "$HOST_OS" == "debian" ]; then
source env_scripts/older_os.sh
else
source env_scripts/newer_os.sh
fi
download_base_image()
{
if ! test -f "${VM_BASE_DIR}/base/$VM_OS_VARIANT.qcow2"; then
if [[ "$VM_OS_VARIANT" == "freebsd14.2" ]]; then
VM_DISK_FORMAT="qcow2.xz"
cd ${VM_BASE_DIR}/base/
wget -v -O "${VM_BASE_DIR}/base/$VM_OS_VARIANT.${VM_DISK_FORMAT}" ${VM_BASE_IMAGE}
xz -d $VM_OS_VARIANT.${VM_DISK_FORMAT}
mv $VM_OS_VARIANT.${VM_DISK_FORMAT} $VM_OS_VARIANT.img
cd -
elif [[ "$VM_OS_VARIANT" == "fedora-coreos-stable" ]]; then
podman run --pull=always --rm \
-v /dev:/dev -v /run/udev:/run/udev \
-v $VM_BASE_DIR/base:/data -w /data \
quay.io/coreos/coreos-installer:release \
download -s ${HAT_STREAM} -p qemu -f qcow2.xz --decompress -C .
mv $VM_BASE_DIR/base/fedora-coreos-*.qcow2 $VM_BASE_DIR/base/"$VM_OS_VARIANT".qcow2
else
wget -v -O "${VM_BASE_DIR}/base/$VM_OS_VARIANT.${VM_DISK_FORMAT}" ${VM_BASE_IMAGE}
fi
fi
}
gen_coreos_data()
{
cat <<EOF > "$VM_BASE_DIR/init/${VM_HOSTNAME}-user-data.bu"
variant: fcos
version: 1.6.0
passwd:
users:
- name: core
ssh_authorized_keys:
- ${SSH_PUB_KEY}
EOF
}
gen_linux_user_data()
{
VM_USER_PASS=$(tr -dc A-Za-z0-9 </dev/urandom | head -c 8; echo)
VM_USER_PASS_HASH=$(mkpasswd --method=SHA-512 --rounds=4096 ${VM_USER_PASS})
cat <<EOF > "$VM_BASE_DIR/init/${VM_HOSTNAME}-user-data"
#cloud-config
hostname: ${VM_HOSTNAME}
# manage_etc_hosts: false
ssh_pwauth: true
disable_root: true
users:
- name: ${VM_USERNAME}
hashed_passwd: ${VM_USER_PASS_HASH}
sudo: ALL=(ALL) NOPASSWD:ALL
shell: /bin/bash
lock-passwd: false
ssh_authorized_keys:
- ${SSH_PUB_KEY}
EOF
}
gen_freebsd_user_data()
{
#VM_ROOT_PASS=$(tr -dc A-Za-z0-9 </dev/urandom | head -c 16; echo)
VM_ROOT_PASS="changeme"
echo "Generated root passwd: ${VM_ROOT_PASS}"
VM_ROOT_PASS_HASH=$(mkpasswd --method=SHA-512 --rounds=4096 ${VM_ROOT_PASS})
# Write FreeBSD 13.2 user-data
VM_USER_PASS="sasasa123"
VM_USER_PASS_HASH=$(mkpasswd --method=SHA-512 --rounds=4096 ${VM_USER_PASS})
cat <<EOF > "$VM_BASE_DIR/init/${VM_HOSTNAME}-user-data"
#cloud-config
users:
- name: root
lock_passwd: false
hashed_passwd: ${VM_ROOT_PASS}
- name: ${VM_USERNAME}
ssh_authorized_keys:
- ssh-rsa ${SSH_PUB_KEY}
groups: wheel
ssh_pwauth: true
hashed_passwd: ${VM_USER_PASS_HASH}
write_files:
- path: /usr/local/etc/sudoers
content: |
%wheel ALL=(ALL) NOPASSWD: ALL
append: true
EOF
}
while getopts "h:n:net:b:r:c:s:v" option; do
case "${option}"
in
h)
usage
exit 0
;;
n) VM_HOSTNAME=${OPTARG};;
b) VM_BRIDGE_INT=${OPTARG};;
r) VM_MEM_SIZE=${OPTARG};;
c) VM_VCPUS=${OPTARG};;
s) VM_DISK_SIZE=${OPTARG};;
v) VERBOSE=1;;
*)
usage
exit 1
;;
esac
done
if [[ -z $VM_HOSTNAME ]]; then
echo "ERROR: Host name is required"
usage
exit 1
fi
if [[ -n $VERBOSE ]]; then
echo "Building ${VM_HOSTNAME} in $VM_IMAGE_DIR"
set -xv
fi
if [[ -n $VM_BRIDGE_INT ]]; then
LIBVIRT_NET_OPTION="model=virtio,bridge=${VM_BRIDGE_INT}"
fi
mkdir -p "$VM_BASE_DIR"/{images,xml,init,base,ssh}
## VM Base image
if [ -n "$VM_BASE_IMAGE" ] && [ -f "$VM_BASE_IMAGE" ]; then
download_base_image
else
while true; do
read -r -p $'Select VM OS:\n 1.Debian12\n 2.Ubuntu 20.04\n 3.Ubuntu 22.04\n 4.Ubuntu 24.04 \n 5.FreeBSD 14\n 6.Alpine Linux\n 7.Fedora CoreOS' -n1 answer
case $answer in
[1]* ) VM_OS_VARIANT='debian11'
VM_BASE_IMAGE='https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-generic-amd64.qcow2'
break;;
[2]* ) VM_OS_VARIANT='ubuntu20.04'
VM_BASE_IMAGE='https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64.img'
break;;
[3]* ) VM_OS_VARIANT='ubuntu22.04'
VM_BASE_IMAGE='https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-amd64.img'
break;;
[4]* ) VM_OS_VARIANT='ubuntu24.04'
VM_BASE_IMAGE='https://cloud-images.ubuntu.com/noble/current/noble-server-cloudimg-amd64.img'
break;;
[5]* ) VM_OS_VARIANT='freebsd14.2'
VM_BASE_IMAGE='https://download.freebsd.org/ftp/releases/VM-IMAGES/14.2-RELEASE/amd64/Latest/FreeBSD-14.2-RELEASE-amd64-BASIC-CLOUDINIT.ufs.qcow2.xz'
break;;
[6]* ) VM_OS_VARIANT='alpinelinux3.20'
VM_BASE_IMAGE='https://dl-cdn.alpinelinux.org/alpine/v3.21/releases/cloud/generic_alpine-3.21.2-x86_64-bios-tiny-r0.qcow2"'
break;;
[7]* ) VM_OS_VARIANT='fedora-coreos-stable'
#VM_BASE_IMAGE='https://dl-cdn.alpinelinux.org/alpine/v3.21/releases/cloud/generic_alpine-3.21.2-x86_64-bios-tiny-r0.qcow2"'
break;;
* ) echo "Please answer 1,2,3,4,5,6,7.";;
esac
done
download_base_image
fi
echo "Creating a qcow2 image file ${VM_BASE_DIR}/images/${VM_HOSTNAME}.img that uses the cloud image file ${VM_BASE_DIR}/base/$VM_OS_VARIANT.${VM_DISK_FORMAT} as its base"
if ! test -f "${VM_BASE_DIR}/images/${VM_HOSTNAME}.img"; then
qemu-img create -b "${VM_BASE_DIR}/base/${VM_OS_VARIANT}.qcow2" -f qcow2 -F qcow2 "${VM_BASE_DIR}/images/${VM_HOSTNAME}.img" "${VM_DISK_SIZE}G"
else
echo "El fichero ${VM_BASE_DIR}/images/${VM_HOSTNAME}.img ya existe"
exit 1
fi
# VM ssh keys gen
if [ -f "${VM_BASE_IMAGE}/ssh/${VM_HOSTNAME}" ]; then
echo "Ya existe una clave ssh para la maquina ${VM_HOSTNAME}"
else
ssh-keygen -t rsa -b 4096 -N '' -f "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}"
chmod 600 ${VM_BASE_DIR}/ssh/${VM_HOSTNAME}.pub
ssh-keygen -y -f "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}" > "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}".pub.txt
SSH_PUB_KEY=$(cat "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}".pub.txt)
rm "${VM_BASE_DIR}/ssh/${VM_HOSTNAME}".pub.txt
fi
#cloud-init VM meta-data
cat > "$VM_BASE_DIR/init/${VM_HOSTNAME}-meta-data" << EOF
instance-id: ${VM_HOSTNAME}
local-hostname: ${VM_HOSTNAME}
EOF
#cloud-init VM user-data
if [[ "$VM_OS_VARIANT" == "freebsd14.2" ]]; then
gen_freebsd_user_data
# genisoimage \
# -output ${VM_BASE_DIR}/images/${VM_HOSTNAME}-cidata.iso \
# -V cidata -r \
# -J ${VM_BASE_DIR}/init/${VM_HOSTNAME}-user-data ${VM_BASE_DIR}/init/${VM_HOSTNAME}-meta-data
# virt-install \
# --name ${VM_HOSTNAME} \
# --memory ${VM_MEM_SIZE} \
# --vcpus="${VM_VCPUS}" \
# --os-variant=${VM_OS_VARIANT} \
# --disk ${VM_BASE_DIR}/images/${VM_HOSTNAME}.img,device=disk,bus=virtio \
# --disk path=${VM_BASE_DIR}/images/${VM_HOSTNAME}-cidata.iso,device=cdrom \
# --network ${LIBVIRT_NET_OPTION} \
# --autostart \
# --import --noautoconsole \
# --cloud-init root-password-generate=on,user-data=${VM_BASE_DIR}/init/${VM_HOSTNAME}-user-data
elif [[ "$VM_OS_VARIANT" == "fedora-coreos-stable" ]]; then
gen_coreos_data
else
gen_linux_user_data
fi
if [[ "$VM_OS_VARIANT" == "fedora-coreos-stable" ]]; then
IGNITION_CONFIG="${VM_BASE_DIR}/init/${VM_HOSTNAME}.ign"
BUTANE_CONFIG="$VM_BASE_DIR/init/${VM_HOSTNAME}-user-data.bu"
IGNITION_DEVICE_ARG=(--qemu-commandline="-fw_cfg name=opt/com.coreos/config,file=${IGNITION_CONFIG}")
#Generate ignition config
podman run --interactive --rm quay.io/coreos/butane:release \
--pretty --strict < ${BUTANE_CONFIG} > ${IGNITION_CONFIG}
chown ${USERNAME}:libvirt-qemu /home/victor/vms/init/*
#Install
virt-install \
--connect="qemu:///system" \
--name ${VM_HOSTNAME} \
--memory ${VM_MEM_SIZE} \
--vcpus="${VM_VCPUS}" \
--os-variant=${VM_OS_VARIANT} \
--disk ${VM_BASE_DIR}/images/${VM_HOSTNAME}.img,device=disk,bus=virtio \
--autostart \
--import --noautoconsole \
--network ${LIBVIRT_NET_OPTION} "${IGNITION_DEVICE_ARG[@]}"
#https://unix.stackexchange.com/questions/578086/virt-install-error-cant-load-ignit
else
virt-install \
--name ${VM_HOSTNAME} \
--memory ${VM_MEM_SIZE} \
--vcpus="${VM_VCPUS}" \
--os-variant=${VM_OS_VARIANT} \
--disk ${VM_BASE_DIR}/images/${VM_HOSTNAME}.img,device=disk,bus=virtio \
--network ${LIBVIRT_NET_OPTION} \
--autostart \
--import --noautoconsole \
--cloud-init root-password-generate=on,user-data=${VM_BASE_DIR}/init/${VM_HOSTNAME}-user-data
# cloud-localds \
# ${VM_BASE_DIR}/images/${VM_HOSTNAME}.iso \
# ${VM_BASE_DIR}/init/${VM_HOSTNAME}-user-data
fi
virsh dumpxml "${VM_HOSTNAME}" > "${VM_BASE_DIR}/xml/${VM_HOSTNAME}.xml"
if [ -n $VERBOSE ]; then
set +xv
fi
# Show running VMs
virsh list

View File

@ -1,42 +0,0 @@
#!/bin/env bash
# Function for usage message
usage() {
cat << EOF
Usage: $0 vm_name
This script removes a virtual machine managed by virsh.
EOF
}
VM_BASE_DIR="${VM_BASE_DIR:-${HOME}/vms}"
VM_IMAGE_PATH="${VM_BASE_DIR}/images/$1.img"
CI_IMAGE_PATH="${VM_BASE_DIR}/images/$1-cidata.iso"
# Validate VM name argument
if [[ -z "$1" ]]; then
usage
exit 1
fi
# Check if VM exists
if [[ -f "$VM_IMAGE_PATH" ]]; then
# Safely remove the VM with confirmation
read -p "Are you sure you want to remove the VM '$1' (y/N)? " confirm
if [[ "$confirm" =~ ^[Yy]$ ]]; then
# Attempt to stop the VM before deleting
virsh destroy "$1" 2>/dev/null || true
# Delete VM definition and associated images
virsh undefine "$1" 2>/dev/null || true
rm -fv "$VM_IMAGE_PATH" "$CI_IMAGE_PATH"
rm ${VM_BASE_DIR}/xml/$1.xml
rm ${VM_BASE_DIR}/ssh/$1*
rm ${VM_BASE_DIR}/init/$1-user-data
rm ${VM_BASE_DIR}/init/$1-meta-data
else
echo "VM removal cancelled."
fi
else
# Handle case where VM image is not found
echo "Cannot find VM image file '$VM_IMAGE_PATH'. No action taken."
fi

View File

@ -1,41 +0,0 @@
#!/bin/env bash
usage() {
cat << EOF
USO: $0 VM
Este script recupera la dirección IP de una máquina virtual administrada por virsh.
EOF
}
# Función para obtener la dirección IP de la máquina virtual
get_vm_ip_address() {
local VM="$1"
# Obtener la dirección MAC de la interfaz de red
MAC_VM=$(virsh domiflist "$VM" | awk '{ print $5 }' | tail -2 | head -1)
if [[ -z "$MAC_VM" ]]; then
echo "Error: No se pudo encontrar la dirección MAC para '$VM'"
return 1
fi
# Obtener la dirección IP a partir de la dirección MAC
VM_IP_ADDRESS=$(arp -a | grep "$MAC_VM" | awk '{ print $2 }' | sed 's/[()]//g')
if [[ -z "$VM_IP_ADDRESS" ]]; then
echo "Error: No se pudo encontrar la dirección IP para la dirección MAC '$MAC_VM'"
return 1
fi
echo "$VM_IP_ADDRESS"
}
# Obtener el nombre del host de la máquina virtual
VM="$1"
if [[ -z "$VM" ]]; then
usage
exit 1
fi
# Obtener la dirección IP de la máquina virtual
get_vm_ip_address "$VM"

View File

@ -1,88 +0,0 @@
#!/bin/env bash
VM_BASE_DIR=${VM_BASE_DIR:-"${HOME}/vms"}
VM_USER="user"
VM=$1
VM_IP=''
SCRIPT=''
VM_DISTRO=''
VM_VERSION=''
usage() {
cat << EOF
USO: $0 VM
Este script instala algunos programas en la VM seleccionada
EOF
}
# Función para obtener la dirección IP de la máquina virtual
get_vm_ip_address() {
local VM="$1"
# Obtener la dirección MAC de la interfaz de red
MAC_VM=$(virsh domiflist "$VM" | awk '{ print $5 }' | tail -2 | head -1)
if [[ -z "$MAC_VM" ]]; then
echo "Error: No se pudo encontrar la dirección MAC para '$VM'"
return 1
fi
# Obtener la dirección IP a partir de la dirección MAC
VM_IP_ADDRESS=$(arp -a | grep "$MAC_VM" | awk '{ print $2 }' | sed 's/[()]//g')
if [[ -z "$VM_IP_ADDRESS" ]]; then
echo "Error: No se pudo encontrar la dirección IP para la dirección MAC '$MAC_VM'"
return 1
fi
echo "$VM_IP_ADDRESS"
}
obtener_info_vm() {
# Obtener el ID del sistema operativo
# Obtener el ID del sistema operativo
OS_ID=$(grep -o 'id="[^"]*"' "$1" | tr -d '"' | awk '{print $1}')
# Eliminar el protocolo y el dominio del ID
OS_ID=$(echo "$OS_ID" | cut -d '/' -f 2-)
echo $OS_ID
# Convertir la URL a un nombre de distribución y versión
VM_DISTRO=$(echo "$OS_ID" | awk -F '/' '{print $3}')
VM_VERSION=$(echo "$OS_ID" | awk -F '/' '{print $4}')
}
# Obtener el nombre del host de la máquina virtual
VM="$1"
if [[ -z "$VM" ]]; then
usage
exit 1
fi
# Obtener la dirección IP de la máquina virtual
VM_IP=$(get_vm_ip_address "$VM")
obtener_info_vm ${VM_BASE_DIR}/xml/${VM}.xml
while true; do
read -r -p $'Select software to install:\n 1.Docker\n 2.Gitlab CE\n 3.Gitlab runner\n 4.Kubernetes Single cluster\n' -n1 answer
case $answer in
[1]* )
if [[ "$VM_DISTRO" == "debian" ]]; then
SCRIPT='../vm_example_scripts/docker_debian.sh'
elif [[ "$VM_DISTRO" == "ubuntu" ]]; then
SCRIPT='../vm_example_scripts/docker_ubuntu.sh'
fi
break;;
[2]* ) SCRIPT='../vm_example_scripts/gitlab_ce.sh'
break;;
[3]* ) SCRIPT='../vm_example_scripts/gitlab_runner.sh'
break;;
[4]* ) cd ../vm_example_scripts/
./k8s.sh $VM
break;;
* ) echo "Please answer 1,2,3 or 4.";;
esac
done
if [[ -z "$SCRIPT" ]]; then
exit 0
else
ssh -i ${VM_BASE_DIR}/ssh/${VM} -l${VM_USER} ${VM_IP} "bash -s" -- < ${SCRIPT}
fi

View File

@ -1,2 +0,0 @@
#!/bin/env bash
virsh list

143
vm_manage.sh Executable file
View File

@ -0,0 +1,143 @@
#!/bin/env bash
source env_scripts/common.sh
source env_scripts/functions.sh
# Default values for VM creation parameters
VM_MEM_SIZE=1024
VM_VCPUS=1
VM_DISK_SIZE=10
# Function to display usage message
usage() {
echo "Usage: $0 create -n NAME [-b BRIDGE] [-r RAM] [-c VCPUS] [-s DISK] [-v]"
echo " $0 delete -n NAME"
echo " $0 info -n NAME"
echo " $0 connect -n NAME"
echo " $0 list"
echo ""
echo "Actions:"
echo " create Create a new virtual machine"
echo " delete Delete a virtual machine"
echo " list List all defined virtual machines"
echo " info Show information about a virtual machine"
echo " connect Connect to the console of a virtual machine"
echo ""
echo "Options for 'create':"
echo " -h Show this help message"
echo " -n NAME Host name (required)"
echo " -b BRIDGE Bridge interface name"
echo " -r RAM RAM in MB (default: ${VM_MEM_SIZE})"
echo " -c VCPUS Number of VCPUs (default: ${VM_VCPUS})"
echo " -s DISK Disk size in GB (default: ${VM_DISK_SIZE})"
echo " -v Verbose mode"
exit 1
}
# Check if at least one argument is provided
if [ $# -eq 0 ]; then
usage
fi
ACTION="$1"
shift
case "${ACTION}" in
create)
# Parse options for create command
VERBOSE=false
NAME_SET=false
while getopts ":hn:b:r:c:s:v" opt; do
case "${opt}" in
h)
usage
;;
n)
VM_HOSTNAME="${OPTARG}"
NAME_SET=true
;;
b)
BRIDGE_INTERFACE="${OPTARG}"
;;
r)
VM_MEM_SIZE="${OPTARG}"
;;
c)
VM_VCPUS="${OPTARG}"
;;
s)
VM_DISK_SIZE="${OPTARG}"
;;
v)
VERBOSE=true
;;
\?)
echo "Invalid option: -${OPTARG}" >&2
usage
;;
:)
echo "Option -${OPTARG} requires an argument." >&2
usage
;;
esac
done
# Check that required parameter (-n) was provided
if ! ${NAME_SET}; then
echo "Error: The -n option is required for create action." >&2
usage
fi
source env_scripts/common.sh
#Check network type
vm_net_set_bridge_mode
#Check host os for guest debian type
check_host_os
#Read os_options.json and generate guests menu
#Select guest
show_vm_menu
#Download cloud image
vm_download_base_image
#Compare hashes
compare_checksum
#Create guest image
vm_create_guest_image
#Generate ssh key
vm_generate_ssh_hey
#Generate meta-data file for VM
vm_gen_meta_data
#Generate user-data file for VM
vm_gen_linux_user_data
#Install VM
vm_guest_install
;;
delete|info|connect)
# These actions require a NAME directly as first argument after ACTION
if [ $# -ne 1 ]; then
echo "Error: ${ACTION} requires a VM name as argument." >&2
usage
fi
VM_HOSTNAME="$1"
source env_scripts/common.sh
echo "Action: ${ACTION}"
echo "VM Name: ${VM_HOSTNAME}"
if [[ "${ACTION}" == 'delete' ]]; then
vm_delete ${VM_HOSTNAME}
elif [[ "${ACTION}" == 'info' ]]; then
vm_net_get_ip ${VM_HOSTNAME}
elif [[ "${ACTION}" == 'connect' ]]; then
vm_connect ${VM_HOSTNAME}
fi
;;
list)
#echo "Action: list"
vm_list
;;
*)
echo "Unknown action: ${ACTION}" >&2
usage
;;
esac
exit 0

View File

@ -1,80 +0,0 @@
#!/bin/env bash
VM_BASE_DIR=${VM_BASE_DIR:-"${HOME}/vms"}
VM_USER="user"
MAC_VM=
usage() {
cat << EOF
USO: $0 VM
Este script setea la dirección IP de una máquina virtual administrada por virsh.
EOF
}
# Función para obtener la dirección IP de la máquina virtual
get_vm_ip_address() {
local VM="$1"
# Obtener la dirección MAC de la interfaz de red
MAC_VM=$(virsh domiflist "$VM" | awk '{ print $5 }' | tail -2 | head -1)
if [[ -z "$MAC_VM" ]]; then
echo "Error: No se pudo encontrar la dirección MAC para '$VM'"
return 1
fi
# Obtener la dirección IP a partir de la dirección MAC
VM_IP_ADDRESS=$(arp -a | grep "$MAC_VM" | awk '{ print $2 }' | sed 's/[()]//g')
if [[ -z "$VM_IP_ADDRESS" ]]; then
echo "Error: No se pudo encontrar la dirección IP para la dirección MAC '$MAC_VM'"
return 1
fi
echo "$VM_IP_ADDRESS"
}
define_netplan()
{
cat <<EOF > "$VM_BASE_DIR/init/${VM}-netplan"
# This file is generated from information provided by the datasource. Changes
# to it will not persist across an instance reboot. To disable cloud-init's
# network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
ethernets:
enp1s0:
addresses:
- ${IP}/24
nameservers:
addresses:
- 208.67.222.222
- 208.67.220.220
match:
macaddress: ${MAC_VM}
set-name: enp1s0
version: 2
EOF
}
# Obtener el nombre del host de la máquina virtual
VM="$1"
IP="$2"
if [[ -z "$VM" ]]; then
usage
exit 1
fi
if [[ -z "$IP" ]]; then
usage
exit 1
fi
MAC_VM=$(virsh domiflist "$VM" | awk '{ print $5 }' | tail -2 | head -1)
CURRENT_IP=$(get_vm_ip_address "$VM")
define_netplan
# Obtener la dirección IP de la máquina virtual
scp -i ${VM_BASE_DIR}/ssh/${VM} \
-r $VM_BASE_DIR/init/${VM}-netplan \
${VM_USER}@${CURRENT_IP}:50-cloud-init.yaml
ssh -i ${VM_BASE_DIR}/ssh/${VM} -l${VM_USER} ${CURRENT_IP} "bash -s" -- < ../vm_example_scripts/apply_netplan.sh