From e56e9ccd88593c2d3a188a5114f733922bf0767c Mon Sep 17 00:00:00 2001
From: root <root@packer.siempie.internal>
Date: Mon, 15 Jul 2024 12:58:32 +0000
Subject: [PATCH] [global] feat: initial commit

---
 .gitignore                    |   1 +
 readme.md                     |  41 +++++++++++++
 scripts/magic.sh              |  91 ++++++++++++++++++++++++++++
 ubuntu24/http/meta-data       |   0
 ubuntu24/http/user-data       |  46 ++++++++++++++
 ubuntu24/packer.pkr.hcl       | 109 ++++++++++++++++++++++++++++++++++
 variables.pkrvars.hcl.example |   7 +++
 7 files changed, 295 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 readme.md
 create mode 100644 scripts/magic.sh
 create mode 100644 ubuntu24/http/meta-data
 create mode 100644 ubuntu24/http/user-data
 create mode 100644 ubuntu24/packer.pkr.hcl
 create mode 100644 variables.pkrvars.hcl.example

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..91118fa
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+variables.pkrvars.hcl
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..a7dd210
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,41 @@
+# What does this stuff do?
+Packer is a tool that can create Virtual Machine templates from code. This repository hosts the code for a customized templates used in Siempie's home environment using the Proxmox Hypervisor.  
+
+# Template
+Inside the template packer does:
+ - Install updates
+ - Install tools; curl, qemu-guest agent, sudo and wget.  
+ - Install Ansible user with private key
+ - Clean guest (machine-id, logs, apt cache, etc)
+  
+Other information to know:
+ - Template hostname: `localhost`
+
+ - packer username: `packer`
+ - packer password: `packer`
+ - Ubuntu 24 Template: VM ID 999  
+  
+More info: https://developer.hashicorp.com/packer/docs/intro
+
+| OS | VM Name | VM ID | 
+|----|---------|-------|
+| Ubuntu 24 | ubuntu.template.siempie.internal | 999 |
+
+# Install packer
+Install packer on your system:  
+https://developer.hashicorp.com/packer/tutorials/docker-get-started/get-started-install-cli
+
+# Variables
+Copy the `variables.pkrvars.hcl.example` file to `variables.pkrvars.hcl` and change the variables.
+
+# Initialize the project and install the proxmox provider
+```
+packer init -var-file variables.pkrvars.hcl ubuntu24/packer.pkr.hcl
+```
+
+# Usage
+Ubuntu 24
+```
+packer build -force -var-file variables.pkrvars.hcl ubuntu24/packer.pkr.hcl
+```
+Note: the `-force` flag removes an already existing VM or Template with the same ID (999).
diff --git a/scripts/magic.sh b/scripts/magic.sh
new file mode 100644
index 0000000..cd42771
--- /dev/null
+++ b/scripts/magic.sh
@@ -0,0 +1,91 @@
+#!/usr/bin/bash
+
+# Update the guest operating system
+echo '> Updating the guest operating system ...'
+sudo -u root apt update
+sudo -u root DEBIAN_FRONTEND=noninteractive apt -y upgrade
+sudo -u root apt autoremove -y
+
+# install rc.local script
+cat << 'EOL' | sudo tee /etc/rc.local
+#!/bin/sh -ef
+#
+test -f /etc/ssh/ssh_host_dsa_key || sudo -u root dpkg-reconfigure openssh-server
+exit 0
+EOL
+sudo -u root chmod +x /etc/rc.local
+
+# grow disk
+echo '> grow disk ...'
+sudo -u root lvresize --resizefs -l+100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
+
+# cloud-init cleanup
+while [ ! -f /var/lib/cloud/instance/boot-finished ]; do 
+  echo '> Waiting for cloud-init...';
+  sleep 1; 
+done
+sudo -u root rm -f /etc/cloud/cloud.cfg.d/99-installer.cfg
+sudo -u root cloud-init clean
+
+# cleaning logs
+echo '> cleaning logs ...'
+sudo -u root rm -rf /var/log/*
+
+# cleans persistent udev rules
+echo '> cleaning persistent udev rules ...'
+if [ -f /etc/udev/rules.d/70-persistent-net.rules ]; then
+sudo -u root rm /etc/udev/rules.d/70-persistent-net.rules
+fi
+
+# cleans /tmp directories
+echo '> cleaning /tmp directories ...'
+sudo -u root rm -rf /tmp/*
+sudo -u root rm -rf /var/tmp/*
+
+# cleans SSH keys
+echo '> cleaning ssh host keys ...'
+sudo -u root rm -f /etc/ssh/ssh_host_*
+
+# sets hostname to localhost
+echo '> setting hostname to localhost ...'
+sudo -u root bash -c "cat /dev/null > /etc/hostname"
+sudo -u root hostnamectl set-hostname localhost
+
+# cleans apt.
+echo '> cleaning apt-get ...'
+sudo -u root apt clean
+
+# cleans the machine-id
+echo '> cleaning the machine-id ...'
+sudo -u root truncate -s 0 /etc/machine-id
+sudo -u root rm /var/lib/dbus/machine-id
+sudo -u root ln -s /etc/machine-id /var/lib/dbus/machine-id
+
+# cleans shell history
+echo '> cleaning shell history ...'
+unset HISTFILE
+history -cw
+echo > ~/.bash_history
+sudo -u root rm -fr /root/.bash_history
+
+# install the ansible user
+echo '> create ansible user ...'
+sudo -u root useradd -m ansible
+
+# configure ansible user
+sudo -u root mkdir -p /home/ansible/.ssh
+sudo -u root bash -c "echo \"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH9H3XK4IaK2pd8xegsbCm0at70kCi33vYkHDccV3Iyn\" >> /home/ansible/.ssh/authorized_keys"
+sudo -u root chmod 700 /home/ansible/.ssh
+sudo -u root chmod 600 /home/ansible/.ssh/authorized_keys
+sudo -u root chown -R ansible:ansible /home/ansible
+
+# configure sudo for ansible
+sudo -u root bash -c "echo \"ansible ALL=(ALL) NOPASSWD: ALL\" >> /etc/sudoers.d/ansible"
+
+# zero fill the disk
+echo '> zero fill disk ...'
+sudo -u root bash -c "cat /dev/zero > /zero.file | exit 0 && sync && rm -f /zero.file"
+
+# all done
+echo '> done.'
+echo '> packer template build -- complete'
diff --git a/ubuntu24/http/meta-data b/ubuntu24/http/meta-data
new file mode 100644
index 0000000..e69de29
diff --git a/ubuntu24/http/user-data b/ubuntu24/http/user-data
new file mode 100644
index 0000000..89210b6
--- /dev/null
+++ b/ubuntu24/http/user-data
@@ -0,0 +1,46 @@
+#cloud-config
+autoinstall:
+  version: 1
+  locale: en_US
+  keyboard:
+    layout: us
+  storage:
+    layout:
+      name: lvm
+  network:
+    version: 2
+    ethernets:
+      all-en:
+        dhcp4: true
+        match: 
+          name: en*
+      all-eth:
+        dhcp4: true
+        match: 
+          name: eth*
+
+  # packer user
+  identity:
+    hostname: packer
+    username: packer
+    password: "$6$WUe8MQLrLReDtp7S$cz5dzvQ8CZjL1.YvT7xMvyqC6DJ.vIkCJJHgkuRIS/LICSw.pqA0LgRh/rMUiv.UXZl.IMBIrDAhC.CzG.ASa1"
+
+  # enable ssh
+  ssh:
+    install-server: yes
+    allow-pw: yes
+
+  # create root account
+  user-data:
+    disable_root: false
+
+  # install qemu guest agent
+  packages:
+    - curl
+    - qemu-guest-agent
+    - sudo
+    - wget
+
+  # allow ubuntu user pwless sudo
+  late-commands:
+    - echo 'packer ALL=(ALL) NOPASSWD:ALL' > /target/etc/sudoers.d/packer
diff --git a/ubuntu24/packer.pkr.hcl b/ubuntu24/packer.pkr.hcl
new file mode 100644
index 0000000..c517df6
--- /dev/null
+++ b/ubuntu24/packer.pkr.hcl
@@ -0,0 +1,109 @@
+packer {
+  required_plugins {
+    proxmox = {
+      version = ">=1.1.7"
+      source  = "github.com/hashicorp/proxmox"
+    }
+  }
+}
+
+variable "proxmox_iso_pool" {
+  type    = string
+  default = "cracky-fs-images:iso"
+}
+
+variable "proxmox_node" {
+  type    = string
+  default = ""
+}
+
+variable "proxmox_password" {
+  type    = string
+  default = ""
+}
+
+variable "proxmox_storage_format" {
+  type    = string
+  default = "raw"
+}
+
+variable "proxmox_storage_pool" {
+  type    = string
+  default = "cracky-fs"
+}
+
+variable "proxmox_storage_pool_type" {
+  type    = string
+  default = "rbd"
+}
+
+variable "proxmox_url" {
+  type    = string
+  default = ""
+}
+
+variable "proxmox_username" {
+  type    = string
+  default = ""
+}
+
+variable "template_description" {
+  type    = string
+  default = "Ubuntu 24.04 Template"
+}
+
+variable "template_name" {
+  type    = string
+  default = "template.test.siempie.internal"
+}
+
+variable "ubuntu_image" {
+  type    = string
+  default = "ubuntu-24.04-live-server-amd64.iso"
+}
+
+variable "version" {
+  type    = string
+  default = ""
+}
+
+source "proxmox-iso" "template" {
+  boot_command = ["c", "linux /casper/vmlinuz -- autoinstall ds='nocloud-net;s=http://{{ .HTTPIP }}:{{ .HTTPPort }}/'", "<enter><wait><wait>", "initrd /casper/initrd", "<enter><wait><wait>", "boot<enter>"]
+  boot_wait    = "10s"
+  cores        = "2"
+  disks {
+    disk_size         = "20G"
+    format            = "${var.proxmox_storage_format}"
+    storage_pool      = "${var.proxmox_storage_pool}"
+    type              = "virtio"
+  }
+  http_directory           = "ubuntu24/http"
+  insecure_skip_tls_verify = true
+  iso_file                 = "${var.proxmox_iso_pool}/${var.ubuntu_image}"
+  memory                   = "2048"
+  network_adapters {
+    bridge = "vmbr0"
+  }
+  node                 = "${var.proxmox_node}"
+  vm_id                = "999"
+  tags                 = "mgmt"
+  os                   = "l26"
+  password             = "${var.proxmox_password}"
+  proxmox_url          = "${var.proxmox_url}"
+  scsi_controller      = "virtio-scsi-single"
+  ssh_port             = 22
+  ssh_timeout          = "10m"
+  ssh_username         = "${var.template_username}"
+  ssh_password         = "${var.template_password}"
+  template_description = "${var.template_description}"
+  template_name        = "${var.template_name}"
+  unmount_iso          = true
+  username             = "${var.proxmox_username}"
+}
+
+build {
+  sources = ["source.proxmox-iso.template"]
+  provisioner "shell" {
+    script = "scripts/magic.sh"
+  }
+}
diff --git a/variables.pkrvars.hcl.example b/variables.pkrvars.hcl.example
new file mode 100644
index 0000000..a721dce
--- /dev/null
+++ b/variables.pkrvars.hcl.example
@@ -0,0 +1,7 @@
+proxmox_node = "pve0"
+proxmox_url = "https://pve0:8006/api2/json"
+proxmox_storage_pool = "local-lvm"
+proxmox_username = "packer@pve"
+proxmox_password = "super-secure"
+template_username = "packer"
+template_password = "packer"