Add playbooks to set up the nat64 net and VM

Playbook to configure the nat64 appliance and networks
on libvirt.

Molecule test builds the nat64 appliance image, deploys it.
Tests also create an additional IPv6 network, a test instance
and verfies that the test instance can ping example.com.

docs/dictionary/en-custom.txt

@@ -458,6 +458,7 @@ svg
 svgrepo
 svm
 systemd
+tayga
 tcib
 tdciagigtlesa
 tempestconf

roles/config_drive/templates/network-config.j2

@@ -1 +1 @@
-{{ cifmw_config_drive_networkconfig | to_nice_yaml(indent=2, default_style="\"") }}
+{{ cifmw_config_drive_networkconfig | to_nice_yaml(indent=2) }}

roles/nat64_appliance/README.md

@@ -1,12 +1,31 @@
 # nat64_appliance
 
-`diskimage-builder` definition and element to build a NAT64 + DNS64 appliance VM image.
+`main.yml`: Tasks to build a NAT64 + DNS64 appliance VM image, uses `diskimage-builder`.
+`deploy.yml`: Tasks to deploy networks and appliance VM on a libvirt hypervisor.
+`cleanup.yml`: Tasks to destroy and undefine the VM and networks on a libvirt hypervisor, and delete the built image.
 
 ## Parameters
 
 * `cifmw_nat64_appliance_basedir`: (String) Base directory. Defaults to `{{ cifmw_basedir }}` which defaults to `~/ci-framework-data`.
 * `cifmw_nat64_appliance_workdir`: (String) Working directory. Defaults to `{{ cifmw_nat64_appliance_basedir }}/nat64_appliance`.
 * `cifmw_nat64_appliance_venv_dir`: (String) Python virtual environment directory. Defaults to `{{ cifmw_nat64_appliance_workdir }}/venv`.
+* `cifmw_nat64_libvirt_uri`: (String) The libvirt URI for the hypervisor to deploy on. Defaults to `qemu:///system`.
+* `cifmw_nat64_network_ipv4_name`: (String) Name of the nat64 IPv4 libvirt network. Defaults to: `nat64-net-v4`.
+* `cifmw_nat64_network_ipv4_bridge_name`: (String) Bridge name for the nat64 IPv4 libvirt network. Defaults to: `br-64v4`.
+* `cifmw_nat64_network_ipv4_address`: (String) IP address for the nat64 IPv4 libvirt network. Defaults to: `172.31.255.1`.
+* `cifmw_nat64_network_ipv4_prefix`: (Integer) IP prefix length for the nat64 IPv4 libvirt network. Defaults to: `24`.
+* `cifmw_nat64_network_ipv6_name`: (String) Name of the nat64 IPv6 libvirt network. Defaults to: `nat64-net-v6`.
+* `cifmw_nat64_network_ipv6_bridge_name`: (String) The bridge name for the nat64 IPv6 libvirt network. Defaults to: `br-64v6`.
+* `cifmw_nat64_network_ipv6_address`: (String) IP address for the nat64 IPv6 libvirt network. Defaults to: `fd00:abcd:abcd:fc00::1`.
+* `cifmw_nat64_network_ipv6_prefix`: (Integer) IP prefix length for the nat64 IPv6 libvirt network. Defaults to: `64`.
+* `cifmw_nat64_appliance_name`: (String) Name and hostname for the nat64 appliance VM. Defaults to: `nat64-appliance`.
+* `cifmw_nat64_appliance_ipv4_address`: (String) IPv4 address for the nat64 appliance VM. Defaults to: `172.31.255.2`.
+* `cifmw_nat64_appliance_ipv6_address`: (String) IPv6 address for the nat64 appliance VM. Defaults to: `fd00:abcd:abcd:fc00::2`.
+* `cifmw_nat64_appliance_memory`: (Integer) Memory in GiB for the nat64 appliance VM. Defaults to: `2`.
+* `cifmw_nat64_appliance_cpus`: (Integer) Virtual CPUs for the nat64 appliance VM. Defaults to: `2`.
+* `cifmw_nat64_appliance_ssh_pub_key`: (String) Path to ssh public key for the nat64 appliance VM. Defaults to: `{{ ansible_user_dir }}/.ssh/id_rsa.pub`
+* `cifmw_nat64_ipv6_prefix`: (String) IPv6 prefix for nat64. Defaults to: `fd00:abcd:abcd:fc00::/64`.
+* `cifmw_nat64_ipv6_tayga_address`: (String) Tayga IPv6 address. Defaults to: `fd00:abcd:abcd:fc00::3`.
 
 ## Building the image
 
@@ -18,12 +37,34 @@ Include the `nat64_appliance` role in a playbook. For example:
   roles:
     - nat64_appliance
 ```
-The built image will be in: `{{ cifmw_basedir }}/artifacts/roles/nat64-appliance/nat64-appliance.qcow2`
+
+The built image will be in: `{{ cifmw_nat64_appliance_workdir }}/nat64-appliance.qcow2`
 
 ## Using the nat64-appliance
 
-- [With Openstack cloud](#with-openstack-cloud){#toc-with-openstack-cloud}
 - [With Libvirt](#with-libvirt){#toc-with-libvirt}
+- [With Openstack cloud](#with-openstack-cloud){#toc-with-openstack-cloud}
+
+### With Libvirt
+
+```
+- name: "Build nat64 appliance image"
+  ansible.builtin.include_role:
+    name: nat64_appliance
+- name: "Deploy the nat64 appliance and networks"
+  ansible.builtin.include_role:
+    name: nat64_appliance
+    tasks_from: deploy.yml
+```
+
+To cleanup the libvirt nat64 deployment:
+```
+- name: "Build nat64 appliance image"
+  ansible.builtin.include_role:
+    name: nat64_appliance
+    tasks_from: cleanup.yml
+```
+
 
 ### With Openstack cloud
 
@@ -220,7 +261,3 @@ $ ssh -J [email protected] fedora@fd00:abcd:aaaa:fc00::2b8
 PING sunet.se(fd00:abcd:abcd:fcff::259c:c033 (fd00:abcd:abcd:fcff::259c:c033)) 56 data bytes
 64 bytes from fd00:abcd:abcd:fcff::259c:c033 (fd00:abcd:abcd:fcff::259c:c033): icmp_seq=1 ttl=53 time=4.91 ms
 ```
-
-### With Libvirt
-
-TODO

roles/nat64_appliance/defaults/main.yml

@@ -20,3 +20,24 @@ cifmw_nat64_appliance_basedir: >-
   }}
 cifmw_nat64_appliance_workdir: "{{ cifmw_nat64_appliance_basedir }}/nat64_appliance"
 cifmw_nat64_appliance_venv_dir: "{{ cifmw_nat64_appliance_workdir }}/venv"
+
+cifmw_nat64_libvirt_uri: "qemu:///system"
+cifmw_nat64_network_ipv4_name: nat64-net-v4
+cifmw_nat64_network_ipv4_bridge_name: br-64v4
+cifmw_nat64_network_ipv4_address: 172.31.255.1
+cifmw_nat64_network_ipv4_prefix: 24
+
+cifmw_nat64_network_ipv6_name: nat64-net-v6
+cifmw_nat64_network_ipv6_bridge_name: br-64v6
+cifmw_nat64_network_ipv6_address: fd00:abcd:abcd:fc00::1
+cifmw_nat64_network_ipv6_prefix: 64
+cifmw_nat64_appliance_name: nat64-appliance
+cifmw_nat64_appliance_ipv4_address: 172.31.255.2
+cifmw_nat64_appliance_ipv6_address: fd00:abcd:abcd:fc00::2
+
+cifmw_nat64_appliance_memory: 2
+cifmw_nat64_appliance_cpus: 2
+cifmw_nat64_appliance_ssh_pub_key: "{{ ansible_user_dir }}/.ssh/id_rsa.pub"
+
+cifmw_nat64_ipv6_prefix: "fd00:abcd:abcd:fc00::/64"
+cifmw_nat64_ipv6_tayga_address: "fd00:abcd:abcd:fc00::3"

roles/nat64_appliance/files/nat64-appliance.yaml

@@ -8,12 +8,12 @@
     - block-device-efi
     - package-installs
     - nat64-router
+    - reset-bls-entries  # Requires edpm-image-builder elements.
   environment:
     DIB_RELEASE: '9-stream'
     DIB_PYTHON_VERSION: '3'
     DIB_IMAGE_SIZE: '2'
     COMPRESS_IMAGE: '1'
-    TMP_DIR: '/var/tmp'
     DIB_BLOCK_DEVICE_CONFIG: |
       - local_loop:
           name: image0
@@ -34,6 +34,16 @@
             - name: BSP
               type: 'EF02'
               size: 8MiB
+            - name: boot
+              type: '8300'
+              size: 512MiB
+              mkfs:
+                type: xfs
+                mount:
+                  mount_point: /boot
+                  fstab:
+                    options: "defaults"
+                    fsck-passno: 1
             - name: root
               type: '8300'
               size: 100%

roles/nat64_appliance/molecule/default/cleanup.yml

@@ -0,0 +1,38 @@
+- name: Cleanup
+  hosts: instance
+  vars:
+    ansible_user_dir: "{{ lookup('env', 'HOME') }}"
+  tasks:
+    - name: "Destroy the test-node"
+      community.libvirt.virt:
+        command: destroy
+        name: test-node
+        uri: 'qemu:///system'
+
+    - name: "Undefine the test-node"
+      community.libvirt.virt:
+        command: undefine
+        name: test-node
+        force: true
+        uri: 'qemu:///system'
+
+    - name: Destroy the test network
+      register: net_destroy
+      community.libvirt.virt_net:
+        command: destroy
+        name: br-mol
+        uri: 'qemu:///system'
+      failed_when:
+        - net_destroy.rc is defined
+        - net_destroy.rc > 1
+
+    - name: Undefine the test network
+      community.libvirt.virt_net:
+        command: undefine
+        name: br-mol
+        uri: 'qemu:///system'
+
+    - name: "Cleanup the nat64 appliance and networks"
+      ansible.builtin.include_role:
+        name: nat64_appliance
+        tasks_from: cleanup.yml