Uploaded from github, added FreeBSD VMs support

This commit is contained in:
2024-07-03 16:08:50 +02:00
parent 65b998560f
commit cc437fa204
32 changed files with 2269 additions and 195 deletions

23
base_scripts/vm_connect.sh Executable file
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#!/bin/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

228
base_scripts/vm_create.sh Executable file
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#!/bin/bash
# Variables
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=
LIBVIRT_NET_OPTION="network=default,model=e1000"
# 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 ${VM_DISK_SIZE})
-v Verbose
EOF
}
download_base_image()
{
if ! test -f "$HOME/vms/base/$VM_OS_VARIANT.qcow2"; then
if [[ "$VM_OS_VARIANT" == "freebsd14.0" ]]; then
VM_DISK_FORMAT=".qcow2.xz"
wget -v -O "$HOME/vms/base/$VM_OS_VARIANT.${VM_DISK_FORMAT}" ${VM_BASE_IMAGE}
cd $HOME/vms/base/
xz -d $VM_OS_VARIANT.${VM_DISK_FORMAT}
cd -
else
wget -v -O "$HOME/vms/base/$VM_OS_VARIANT.${VM_DISK_FORMAT}" ${VM_BASE_IMAGE}
fi
fi
}
gen_linux_user_data()
{
VM_USER_PASS=$(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.Ubuntu22.04\n 4.FreeBSD 14\n' -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='freebsd14.0'
VM_BASE_IMAGE='https://download.freebsd.org/releases/VM-IMAGES/14.0-RELEASE/amd64/Latest/FreeBSD-14.0-RELEASE-amd64.qcow2.xz'
break;;
* ) echo "Please answer 1,2,3,4.";;
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 $HOME/vms/base/$VM_OS_VARIANT.${VM_DISK_FORMAT} as its base"
if ! test -f "${VM_BASE_DIR}/images/${VM_HOSTNAME}.img"; then
qemu-img create -b "$HOME/vms/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" == "freebsd14.0" ]]; 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
else
gen_linux_user_data
fi
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
virsh dumpxml "${VM_HOSTNAME}" > "${VM_BASE_DIR}/xml/${VM_HOSTNAME}.xml"
if [ -n $VERBOSE ]; then
set +xv
fi
# Show running VMs
virsh list

42
base_scripts/vm_delete.sh Executable file
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#!/bin/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

41
base_scripts/vm_get_ip.sh Executable file
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#!/bin/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"

88
base_scripts/vm_install.sh Executable file
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#!/bin/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

2
base_scripts/vm_list.sh Executable file
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#!/bin/bash
virsh list

79
base_scripts/vm_set_ip.sh Executable file
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#!/bin/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