From fb6a488dac9bcf92c72b08701166dc0dd3cc3c27 Mon Sep 17 00:00:00 2001
From: michael <michael@balsillie.net>
Date: Mon, 24 Oct 2022 02:54:34 +1300
Subject: [PATCH] vm standup work for k8s

---
 ansible/playbooks/k8s.yaml                    | 12 ++-
 ansible/roles/k8s_vms/defaults/main.yml       | 19 ++++
 ansible/roles/k8s_vms/tasks/main.yml          | 69 +++++++++++++++
 .../roles/k8s_vms/templates/eno1.network.j2   | 13 +++
 .../k8s_vms/templates/vm_template.xml.j2      | 88 +++++++++++++++++++
 5 files changed, 200 insertions(+), 1 deletion(-)
 create mode 100644 ansible/roles/k8s_vms/defaults/main.yml
 create mode 100644 ansible/roles/k8s_vms/tasks/main.yml
 create mode 100644 ansible/roles/k8s_vms/templates/eno1.network.j2
 create mode 100644 ansible/roles/k8s_vms/templates/vm_template.xml.j2

diff --git a/ansible/playbooks/k8s.yaml b/ansible/playbooks/k8s.yaml
index a9bb78c..580e913 100644
--- a/ansible/playbooks/k8s.yaml
+++ b/ansible/playbooks/k8s.yaml
@@ -1,16 +1,26 @@
 ---
+- name: create the vms
+  hosts: hv00
+  gather_facts: true
+  become: true
+  roles:
+    - k8s_vms
+
 - name: python bootstrap
   hosts: k8s
   gather_facts: false
   become: true
   roles:
     - python-install
-- name: ssh hardening
+
+- name: vm hardening
   hosts: k8s
   gather_facts: true
   become: true
   roles:
     - sshd
+    - firewall
+    
 - name: configure control plane
   hosts: k8s_control
   gather_facts: true
diff --git a/ansible/roles/k8s_vms/defaults/main.yml b/ansible/roles/k8s_vms/defaults/main.yml
new file mode 100644
index 0000000..f6bddbe
--- /dev/null
+++ b/ansible/roles/k8s_vms/defaults/main.yml
@@ -0,0 +1,19 @@
+---
+vm_name_prefix: "kube"
+vm_name_suffixes: ["01","02","03"]
+vhd_template: "kube_template_vda.qcow2"
+root_vhd_pool_dir: "/vhds" # No trailing /
+data_vhd_pool_dir: 
+fw_vars_pool_dir: "/var/lib/libvirt/qemu/nvram" # No trailing /
+vm_memory: "16"
+vm_cpu: "4"
+vm_cpu_cores: "2"
+vm_cpu_threads: "2"
+vm_bridge: "br1"
+vm_mac_prefix: "52:54:00:e3:af:"
+vm_subnet_prefix: "192.168.199.1" # vm suffix will be appended to this
+vm_subnet_suffix: "/24"
+vm_gateway: "192.168.199.254"
+vm_domain: "balsillie.net"
+vm_machine_type: "pc-q35-7.1"
+vm_machine_arch: "x86_64"
\ No newline at end of file
diff --git a/ansible/roles/k8s_vms/tasks/main.yml b/ansible/roles/k8s_vms/tasks/main.yml
new file mode 100644
index 0000000..6418d8d
--- /dev/null
+++ b/ansible/roles/k8s_vms/tasks/main.yml
@@ -0,0 +1,69 @@
+---
+- name: create k8s vms
+  with_items: "{{ vm_name_suffixes }}"
+  loop_control:
+    loop_var: vm_number
+  block: 
+  
+  - name: create root vhd from template
+    ansible.builtin.shell:
+      cmd: |
+        qemu-img create \
+        -b {{ root_vhd_pool_dir }}/{{ vhd_template }} \
+        -F qcow2 \
+        -f qcow2 \
+        {{ root_vhd_pool_dir }}/{{ vm_name_prefix }}{{ vm_number }}_vda.qcow2
+    creates: "{{ root_vhd_pool_dir }}/{{ vm_name_prefix }}{{ vm_number }}_vda.qcow2"
+    register: root_vhd_created
+
+# TODO check this template copy
+  - name: copy network files in
+    when: root_vhd_created is changed
+    ansible.builtin.template:
+      src: eno1.network.j2
+      dest: /tmp/eno1_{{ vm_number }}.network
+
+  - name: customize root vhd
+    when: root_vhd_created is changed
+    ansible.builtin.shell:
+# TODO check virt customize command
+# TODO select host vars for vm_number for password and ssh string
+      cmd: |
+        virt-customize -a {{ root_vhd_pool_dir }}/{{ vm_name_prefix }}{{ vm_number }}_vda.qcow2 \
+        --format qcow2 \
+        --hostname {{ vm_name_prefix }}{{ vm_number }}.{{ vm_domain }} \
+        --copy-in /tmp/eno1_{{ vm_number }}.network:/etc/systemd/network/eno1.network \
+        --append-line "/etc/hosts:127.0.1.1 {{ vm_name_prefix }}{{ vm_number }}.{{ vm_domain }} {{ vm_name_prefix }}{{ vm_number }}"
+        --password ladmin:password:{{ }} \
+        --password-crypto sha512 \
+        --ssh-inject 'ladmin:string:{{  }}'
+
+  - name: create container storage vhd
+    ansible.builtin.shell:
+      cmd: |
+        qemu-img create -f qcow2 {{ root_vhd_pool_dir }}/{{ vm_name_prefix }}{{ vm_number }}_vdb.qcow2 64G
+    creates: "{{ root_vhd_pool_dir }}/{{ vm_name_prefix }}{{ vm_number }}_vdb.qcow2"
+
+  # - name: create data storage vhd
+  #   ansible.builtin.shell:
+  #     cmd: |
+  #       qemu-img create -f qcow2 {{ data_vhd_pool_dir }}/kube{{ vm_number }}_vdc.qcow2 4096G
+  #   creates: "{{ data_vhd_pool_dir }}/kube{{ vm_number }}_vdc.qcow2"
+
+  - name: list vms
+    community.libvirt.virt:
+      command: list
+    register: vm_list
+
+  - name: define vm
+    community.libvirt.virt:
+      command: define
+      autostart: true
+      name: "{{ vm_name_prefix }}{{ vm_number }}"
+      xml: "{{ lookup('template', 'vm_template.xml.j2') }}"
+    when: not (vm_list contains {{ vm_name_prefix }}{{ vm_number }})
+
+  - name: start vm
+    community.libvirt.virt:
+      command: start
+      name: "{{ vm_name_prefix }}{{ vm_number }}"
\ No newline at end of file
diff --git a/ansible/roles/k8s_vms/templates/eno1.network.j2 b/ansible/roles/k8s_vms/templates/eno1.network.j2
new file mode 100644
index 0000000..7eaf4e3
--- /dev/null
+++ b/ansible/roles/k8s_vms/templates/eno1.network.j2
@@ -0,0 +1,13 @@
+[Match]
+MACAddress={{ vm_mac_prefix }}{{ vm_number }}
+
+[Address]
+{{ vm_subnet_prefix }}{{ vm_number }}{{ vm_subnet_suffix }}
+
+[Route]
+Gateway={{ vm_gateway }}
+
+[Network]
+DHCP=no
+DNS={{ vm_gateway }}
+Domains={{ vm_domain }}
diff --git a/ansible/roles/k8s_vms/templates/vm_template.xml.j2 b/ansible/roles/k8s_vms/templates/vm_template.xml.j2
new file mode 100644
index 0000000..9d2e6b9
--- /dev/null
+++ b/ansible/roles/k8s_vms/templates/vm_template.xml.j2
@@ -0,0 +1,88 @@
+<domain type='kvm'>
+  <name>{{ vm_name_prefix }}{{ vm_number }}</name>
+  <metadata>
+    <libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">
+      <libosinfo:os id="http://archlinux.org/archlinux/rolling"/>
+    </libosinfo:libosinfo>
+  </metadata>
+  <memory unit='GiB'>{{ vm_memory }}</memory>
+  <currentMemory unit='GiB'>{{ vm_memory }}</currentMemory>
+  <vcpu placement='static'>{{ vm_cpu }}</vcpu>
+  <resource>
+    <partition>/machine</partition>
+  </resource>
+  <os>
+    <type arch={{ vm_machine_arch }} machine={{ vm_machine_type }}>hvm</type>
+    <loader readonly='yes' secure='yes' type='pflash'>/usr/share/edk2-ovmf/x64/OVMF_CODE.secboot.fd</loader>
+    <nvram template=/usr/share/edk2-ovmf/x64/OVMF_VARS.fd>{{ fw_vars_pool_dir }}/{{ vm_name_prefix }}{{ vm_number }}_VARS.fd</nvram>
+    <boot dev='hd'/>
+  </os>
+  <features>
+    <acpi/>
+    <apic/>
+    <vmport state='off'/>
+    <smm state='on'/>
+  </features>
+  <cpu mode='host-passthrough' check='none' migratable='on'>
+    <topology sockets='1' dies='1' cores={{ vm_cpu_cores }} threads={{ vm_cpu_threads }}/>
+  </cpu>
+  <clock offset='utc'>
+    <timer name='rtc' tickpolicy='catchup'/>
+    <timer name='pit' tickpolicy='delay'/>
+    <timer name='hpet' present='no'/>
+  </clock>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <pm>
+    <suspend-to-mem enabled='no'/>
+    <suspend-to-disk enabled='no'/>
+  </pm>
+  <devices>
+    <emulator>/usr/bin/qemu-system-x86_64</emulator>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source file='{{ root_vhd_pool_dir }}/{{ vm_name_prefix }}{{ vm_number }}_vda.qcow2'/>
+      <target dev='vda' bus='virtio'/>
+      <boot order='1'/>
+    </disk>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source file='{{ root_vhd_pool_dir }}/{{ vm_name_prefix }}{{ vm_number }}_vdb.qcow2'/>
+      <target dev='vdb' bus='virtio'/>
+    </disk>
+    <controller type='usb' index='0' model='qemu-xhci' ports='15'/>
+    <controller type='sata' index='0'/>
+    <controller type='virtio-serial' index='0'/>
+    <interface type='bridge'>
+      <mac address={{ vm_mac_prefix }}{{ vm_number }}'/>
+      <source bridge='{{ vm_bridge }}'/>
+      <model type='virtio'/>
+    </interface>
+    <serial type='pty'>
+      <source path='/dev/pts/2'/>
+      <target type='isa-serial' port='0'>
+        <model name='isa-serial'/>
+      </target>
+    </serial>
+    <console type='pty' tty='/dev/pts/2'>
+      <source path='/dev/pts/2'/>
+      <target type='serial' port='0'/>
+    </console>
+    <channel type='unix'>
+      <target type='virtio' name='org.qemu.guest_agent.0'/>
+      <address type='virtio-serial' controller='0' bus='0' port='1'/>
+    </channel>
+    <input type='tablet' bus='usb'>
+      <address type='usb' bus='0' port='1'/>
+    </input>
+    <input type='mouse' bus='ps2'/>
+    <input type='keyboard' bus='ps2'/>
+    <memballoon model='virtio' autodeflate='on' freePageReporting='on'>
+      <stats period='5'/>
+    </memballoon>
+    <rng model='virtio'>
+      <backend model='random'>/dev/urandom</backend>
+    </rng>
+  </devices>
+</domain>