Ansible Role: Virtual Infrastructure

Ansible Role: Virtual Infrastructure

Ansible Role: Virtual Infrastructure

This role is designed to define and manage networks and guests on a KVM host. Ansible's --limit option lets you manage them individually or as a group.

It is really designed for dev work, where the KVM host is your local machine, you have sudo and talk to libvirtd at qemu:///system (although in theory it supports a remote KVM host).

Setting guest states to running, shutdown, destroyed or undefined (to delete and clean up) are supported.

You can set whatever memory, CPU, disks and network cards you want for your guests, either via hostgroups or individually. A mixture of multiple disks is supported, including scsi, sata, virtio and even nvme.

You can create private NAT libvirt networks on the KVM host and then put VMs on any number of them. Guests can use those libvirt networks or existing bridge devices (e.g. br0) and Open vSwitch (OVS) bridge on the KVM host (this won't create bridges on the host, but it will check that the bridge interface exists). You can specify the MAC for each interface if you require.

You can also create routed libvirt networks on the KVM host and then put VMs on any number of them. In this case, a new bridge is created with the name you specify (e.g. br1), wired to an existing interface (e.g. eth0). You can specify the MAC for each interface if you require.

This supports various distros and uses their qcow2 cloud images for convenience (although you could use your own images). I've tested CentOS, Fedora, Debian, Ubuntu and openSUSE.

The qcow2 cloud base images to use for guests are specified as variables in the inventory and should exist under libvirt images directory (default is /var/lib/libvirt/images/). That is to say, this won't download the images for you automatically.

Guest qcow2 boot images are created from those base images and cloud-init is used to configure guests on boot up. The cloud-init ISOs are created automatically and attached to the guest. Timezone will be set to match the KVM host by default.

By default, your shell username will also be used for the guest, along with your public SSH keys on the KVM host (you can override that). Host entries are added to /etc/hosts on the KVM host so you can SSH straight in (but it doesn't modify your SSH config yet). You can set a root password if you really want to.

With all that, you could define and manage OpenStack/Swift/Ceph clusters of different sizes with multiple networks, disks and even distros!

Requirements

All that's really needed is a Linux host, capable of running KVM, some guest images and a basic inventory. Ansible will do the rest (on supported distros).

NOTE: The Ansible will install KVM, libvirtd and other required packages on supported distros and also make sure the libvirtd is running.

A working x86_64 KVM host where the user running Ansible can communicate with libvirtd via sudo.

It expects hardware support for KVM in the CPU so that we an create accelerated guests and pass the CPU through (supports nested virtualisation).

You may need Ansible and Jinja >= 2.8 because this does things like 'equalto' comparisons.

I have tested this on CentOS 8, Fedora 3x, Debian 10, Ubuntu Bionic/Eoan and openSUSE 15 hosts, but other Linux machines probably work.

At least one SSH key pair on your KVM host (the Ansible will generate one if missing).

Several user space tools are also required on the KVM host (the Ansible will install these on supported hosts).

qemu-img
osinfo-query
virsh
virt-customize
virt-sysprep

Download the guest images you want to use (this is what I downloaded) and put them in libvirt images path (usually /var/lib/libvirt/images/). This will check that the images you specified exist and error if they are not found.

KVM host

Here are some instructions for configuring your KVM host, in case they are useful.

Fedora

# Create SSH key if you don't have one
ssh-keygen

# libvirtd
sudo dnf install -y @virtualization
sudo systemctl enable --now libvirtd

# Ansible
sudo dnf install -y ansible

# Other deps (installed by playbook)
sudo dnf install -y \
git \
genisoimage \
libguestfs-tools-c \
libosinfo \
python3-libvirt \
python3-lxml \
qemu-img \
virt-install

CentOS 7

CentOS 7 won't work until we have libselinux-python3 package, which is coming in 7.8...

But here are (hopefully) the rest of the steps for when it is available.

# Create SSH key if you don't have one
ssh-keygen

# libvirtd
sudo yum groupinstall -y "Virtualization Host"
sudo systemctl enable --now libvirtd

# Ansible and other deps
sudo yum install -y epel-release
sudo yum install -y python36
pip3 install --user ansible

sudo yum install -y \
git \
genisoimage \
libguestfs-tools-c \
libosinfo \
python36-libvirt \
python36-lxml \
libselinux-python3 \
qemu-img \
virt-install

CentOS 8

# Create SSH key if you don't have one
ssh-keygen

# libvirtd
sudo dnf groupinstall -y "Virtualization Host"
sudo systemctl enable --now libvirtd

# Ansible
sudo dnf install -y epel-release
sudo dnf install -y ansible

# Other deps (installed by playbook)
sudo dnf install -y \
git \
genisoimage \
libguestfs-tools-c \
libosinfo \
python3 \
python3-libvirt \
python3-lxml \
qemu-img \
virt-install

Debian

# Create SSH key if you don't have one
ssh-keygen

# libvirtd
sudo apt update
sudo apt install -y --no-install-recommends qemu-kvm libvirt-clients libvirt-daemon-system
sudo systemctl enable --now libvirtd

# Ansible
sudo apt install -y gnupg2
echo 'deb http://ppa.launchpad.net/ansible/ansible/ubuntu trusty main' | sudo tee -a /etc/apt/sources.list
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 93C4A3FD7BB9C367
sudo apt update
sudo apt install -y ansible

# Other deps (installed by playbook)
sudo apt install -y --no-install-recommends \
cloud-image-utils \
dnsmasq \
git \
genisoimage \
libguestfs-tools \
libosinfo-bin \
python3-libvirt \
python3-lxml \
qemu-utils \
virtinst

Ubuntu

# Create SSH key if you don't have one
ssh-keygen

# libvirtd
sudo apt update
sudo apt install -y --no-install-recommends libvirt-clients libvirt-daemon-system qemu-kvm
sudo systemctl enable --now libvirtd

# Ansible
sudo apt install -y software-properties-common
sudo apt-add-repository --yes --update ppa:ansible/ansible
sudo apt install -y ansible

# Other deps (installed by playbook)
sudo apt install -y --no-install-recommends \
dnsmasq \
git \
genisoimage \
libguestfs-tools \
libosinfo-bin \
python3-libvirt \
python3-lxml \
qemu-utils \
virtinst

openSUSE

If you're running JeOS, we need to change the kernel to kernel-default as kernel-default-base which comes with JeOS is missing KVM modules.

# Create SSH key if you don't have one
ssh-keygen

# Install suitable kernel
sudo zypper install kernel-default
sudo reboot

Continue after reboot.

# libvirtd
sudo zypper install -yt pattern kvm_server kvm_tools
sudo systemctl enable --now libvirtd

# Ansible
sudo zypper install -y ansible

# Other deps (installed by playbook)
sudo zypper install -y \
git \
guestfs-tools \
libosinfo \
mkisofs \
python3-libvirt-python \
python3-lxml \
qemu-tools \
virt-install

Using routed networks

You can route traffic into a newly created bridge by specifying forward type: route. This code supports automatic creation of a new bridge named bridge_dev which will be wired onto an existing interface in the host, specified by parameter host_dev.

The example below shows how a bridge can be created, supporting both IPv4 and IPv6:

kvmhost:
  hosts:
    localhost:
      ansible_connection: local
      ansible_python_interpreter: /usr/bin/python3
      virt_infra_host_libvirt_url: qemu:///system
  vars:
    virt_infra_host_networks:
      present:
        - name: example
          domain: f901.example.com
          type: route
          host_dev: eth0
          bridge_dev: virbr1
          bridge_stp: on
          bridge_delay: 0
          mac: 52:54:00:f9:01:00
          ip_address: 10.249.1.1
          ip_netmask: 255.255.255.0
          dhcp_start: 10.249.1.11
          dhcp_end: 10.249.1.254
          ip6_address: 2001:0db8::f901:1
          ip6_prefix: 64
          dhcp6_start: 2001:0db8::f901:0000
          dhcp6_end: 2001:0db8::f901:00ff

Notes:

The IPv6 block 2001:0db8/32 as shown above is provided for the sake of documentation purposes only. You will have to substitute that by your own delegated /48 block (in general) given to you by your IPv6 provider or by a IPv6 over IPv4 tunnelling solution such as Hurricane Electric's tunnel broker service.
It's highly recommended that you stick with ip6_prefix: 64, since it is the recommended setting in Libvirt documentation.

Configuring bridges with NetworkManager

This code supports connecting VMs to both Linux and Open vSwitch bridges, but they must already exist on the KVM host.

Here is how to convert an existing ethernet device into a bridge. Be careful if doing this on a remote machine with only one connection! Make sure you have some other way to log in (e.g. console), or maybe add additional interfaces instead.

First, export the the device you want to convert so we can easily reference it later (e.g. eth1).

export NET_DEV="eth1"

Now list the current NetworkManager connections for your device exported above so we know what to disable later.

sudo nmcli con |egrep -w "${NET_DEV}"

This might be something like System eth1 or Wired connection 1, let's export it too for later reference.

export NM_NAME="Wired connection 1"

Linux bridge

Here is an example of creating a persistent Linux bridge with NetworkManager. It will take a device such as eth1 (substitute as appropriate) and convert it into a bridge.

Remember your device's existing NetworkManager connection name from above, you will use it below (e.g. Wired connection 1).

export NET_DEV=eth1
export NM_NAME="Wired connection 1"
sudo nmcli con add ifname br0 type bridge con-name br0
sudo nmcli con add type bridge-slave ifname "${NET_DEV}" master br0

OK now you have your bridge device! Note the bridge will have a different MAC address to the underlying device, so if you're expecting it to get a specific address, you'll need to update your DHCP static lease.

sudo ip link show dev br0

Disable the current NetworkManager config for the device so that it doesn't conflict with the bridge (don't delete it yet, you may lose connection if you're using it for SSH).

sudo nmcli con modify id "${NM_NAME}" ipv4.method disabled ipv6.method disabled

Now you can either simply reboot, or stop the current interface and bring up the bridge in one command. Remember that the bridge will have a new MAC address so it will get a new IP, unless you've updated your DHCP static leases!

sudo nmcli con down "${NM_NAME}" ; sudo nmcli con up br0

As mentioned above, by default the Linux bridge will get an address via DHCP. If you don't want it to be on the network (you might have another dedicated interface) then disable DHCP on it.

sudo nmcli con modify id br0 ipv4.method disabled ipv6.method disabled

Using Linux bridge in inventory

There's nothing to do on the kvmhost side of the inventory.

For any guests you want to connect to the bridge, simply specify it in their inventory. Use br0 as the name of a network under virt_infra_networks with type bridge.

      virt_infra_networks:
        - name: br0
          type: bridge

Open vSwitch (OVS) bridge

Here is an example of creating a persistent OVS bridge with NetworkManager. It will take a device such as eth1 (substitute as appropriate) and convert it into an ovs-bridge.

You will need openvswitch installed as well as the OVS NetworkManager plugin (substitute for your distro).

sudo dnf install -y NetworkManager-ovs openvswitch
sudo systemctl enable --now openvswitch
sudo systemctl restart NetworkManager

Now we can create the OVS bridge (assumes your device is eth1 and existing NetworkManager config is Wired connection 1, substitute as appropriate).

export NET_DEV=eth1
export NM_NAME="Wired connection 1"
sudo nmcli con add type ovs-bridge conn.interface ovs-bridge con-name ovs-bridge
sudo nmcli con add type ovs-port conn.interface port-ovs-bridge master ovs-bridge
sudo nmcli con add type ovs-interface slave-type ovs-port conn.interface ovs-bridge master port-ovs-bridge
sudo nmcli con add type ovs-port conn.interface ovs-port-eth master ovs-bridge con-name ovs-port-eth
sudo nmcli con add type ethernet conn.interface "${NET_DEV}" master ovs-port-eth con-name ovs-int-eth

Disable the current NetworkManager config for the device so that it doesn't conflict with the bridge (don't delete it yet, you may lose connection if you're using it for SSH).

sudo nmcli con modify id "${NM_NAME}" ipv4.method disabled ipv6.method disabled

Now you can either simply reboot, or stop the current interface and bring up the bridge in one command.

sudo nmcli con down "${NM_NAME}" ; sudo nmcli con up ovs-slave-ovs-bridge

By default the OVS bridge will get an address via DHCP. If you don't want it to be on the network (you might have another dedicated interface) then disable DHCP on it.

sudo nmcli con modify id ovs-slave-ovs-bridge ipv4.method disabled ipv6.method disabled

Show the switch config and bridge with OVS tools.

sudo ovs-vsctl show

Using ovs-bridge in inventory

Now you can use ovs-bridge as the device of an ovs bridge in your kvmhost inventory virt_infra_host_networks entry and it will create the OVS libvirt networks for you. You can set up multiple VLANs and set one as default native (if required).

      virt_infra_host_networks:
        present:
          - name: ovs-bridge
            bridge_dev: ovs-bridge
            type: ovs
            portgroup:
              # This is a portgroup with multiple VLANs
              # It is native VLAN 1 and also allows traffic tagged with VLAN 99
              - name: ovs-trunk
                trunk: true
                native_vlan: 1
                vlan:
                  - 1
                  - 99
              # This is portgroup just for native VLAN 1
              - name: default
                native_vlan: 1
                vlan:
                  - 1
              # This is portgroup just for native VLAN 99
              - name: other
                native_vlan: 99
                vlan:
                  - 99

You can then specify your VMs to be on specific portgroups and libvirt will automatically set up the ports for your VMs and you.

      virt_infra_networks:
        - name: ovs-bridge
          portgroup: default
          type: ovs

Once your VMs are running, you can see their OVS ports with sudo ovs-vsctl show.

Guest Cloud images

This is designed to use standard cloud images provided by various distros (OpenStack provides some suggestions).

Make sure the Image you're specifying for your guests already exists under your libvirt storage dir (by default this is /var/lib/libvirt/images/).

I have tested the following guests successfully:

So that we can configure the guest and get its IP, both cloud-init and qemu-guest-agent will be installed into you guest's image, just in case.

This can be changed or overridden using the virt_infra_guest_deps variable, which is a list.

Sysprep is also run on the guest image to make sure it's clean of things like old MAC addresses.

Role Variables

The defaults are set in the defaults/main.yml file.

These can be overridden at host or hostgroup level, as necessary. However, the role is designed to pretty much work out of the box (so long as you have the default CentOS image).

## Guest related
# Valid guest states are: running, shutdown, destroyed or undefined
virt_infra_state: running

# Guests are not autostarted on boot
virt_infra_autostart: "no"

# Guest user, defaults to user on KVM host
virt_infra_user: "{{ hostvars[groups['kvmhost'][0]].ansible_env.USER }}"

# Password of default user (consider a vault if you need secure passwords)
# No root password by default
virt_infra_password: "password"
virt_infra_root_password:

# VM specs for guests
virt_infra_ram: "1024"
virt_infra_ram_max: "{{ virt_infra_ram }}"
virt_infra_cpus: "1"
virt_infra_cpus_max: "{{ virt_infra_cpus }}"
virt_infra_cpu_model: "host-passthrough"
virt_infra_machine_type: "q35"

# SSH keys are a list, you can add more than one
# If not specified, we default to all public keys on KVM host
virt_infra_ssh_keys: []

# Whether to enable SSH password auth
virt_infra_ssh_pwauth: true

# Networks for guests are a list, you can add more than one
# "type" is optional, both "nat" and "bridge" are supported
#  - "nat" is default type and should be a libvirt network
#  - "bridge" type requires the bridge interface (e.g. br0) to already exist on KVM host
#  - "ovs" type requires the OVS bridge interface (e.g. ovsbr0) to already exist on KVM host
# "model" is also optional
# "mtu" is also optional
virt_infra_networks:
  - name: "default"
    type: "nat"
    model: "virtio"
    mtu: 9000

# Disk defaults, support various libvirt options
# We generally don't set them though, and leave it to hypervisor default
virt_infra_disk_size: "20"
virt_infra_disk_bus: "scsi"
virt_infra_disk_io: "threads"
virt_infra_disk_cache: "writeback"

# Disks for guests are a list, you can add more than one
# If you override this, you must still include 'boot' device first in the list
# Only 'name' is required, others are optional (default size is 20GB)
# All guests require at least a boot drive (which is the default)
virt_infra_disks:
  - name: "boot"
    size: "{{ virt_infra_disk_size }}"
    bus: "{{ virt_infra_disk_bus }}"
    io: "{{ virt_infra_disk_io }}"
    cache: "{{ virt_infra_disk_cache }}"

# Default distro is CentOS 7, override in guests or groups
virt_infra_distro_image: "CentOS-7-x86_64-GenericCloud.qcow2"

# Determine supported variants on your KVM host with command, "osinfo-query os"
# This doesn't really make much difference to the guest, maybe slightly different bus
# You could probably just leave this as "centos7.0" for all distros, if you wanted to
virt_infra_variant: "centos7.0"

## KVM host
# Connect to system libvirt instance
virt_infra_host_libvirt_url: "qemu:///system"

# Path where disk images are kept
virt_infra_host_image_path: "/var/lib/libvirt/images"

# Networks on kvmhost are a list, you can add more than one
# You can create and remove NAT networks on kvmhost (creating bridges not supported)
# The 'default' network is the standard one shipped with libvirt
# By default we don't remove any networks (empty absent list)
# 'mtu' is optional
virt_infra_host_networks:
  absent: []
  present:
    - name: "default"
      ip_address: "192.168.112.1"
      subnet: "255.255.255.0"
      dhcp_start: "192.168.112.2"
      dhcp_end: "192.168.112.254"
      mtu: 9000

# List of binaries to check for on kvmhost
virt_infra_host_deps:
  - qemu-img
  - osinfo-query
  - virsh
  - virt-customize
  - virt-sysprep

# List of packages to install into guest image
virt_infra_guest_deps:
  - cloud-init
  - qemu-guest-agent

Dependencies

None

Example Inventory

The separate virt-infra repo has sample inventory files and site playbook to call the role, which might be helpful.

It might be best if the inventories are split into multiple files for ease of management, under an inventory directory or such.

The inventory used with this role must include a hostgroup called kvmhost and other hostgroups for guests.

Custom settings can be provided for each host or group of hosts in the inventory.

To create a new group of guests to manage, create a new yml file under the inventory directory. For example, if you wanted a set of guests for OpenStack, you could create an openstack.yml file and populate it as required.

To manage specific hosts or groups, simply use Ansible's --limit option to specify the hosts or hostgroups (must also include kvmhost group). This way you can use the one inventory for lots of different guests and manage them separately.

The KVM host is where the libvirt networks are created and therefore specified as vars under that hostgroup.

Here is an example inventory file simple.yml in YAML format. It is specifying kvmhost as localhost and creating three simple CentOS guests, using the role defaults. Note there are two networks being created (default and example) and one which is removed (other).

---
## YAML based inventory, see:
## https://docs.ansible.com/ansible/latest/plugins/inventory/yaml.html
#
kvmhost:
  hosts:
    # Put your KVM host connection and settings here
    localhost:
      ansible_connection: local
      ansible_python_interpreter: /usr/bin/python3
  vars:
    # Networks are a list, you can add more than one
    # You can create and remove NAT networks on kvmhost (creating bridges not supported)
    # The 'default' network is the standard one shipped with libvirt
    # By default we don't remove any networks (empty absent list)
    virt_infra_host_networks:
      absent:
        - name: "other"
      present:
        - name: "default"
          ip_address: "192.168.112.1"
          subnet: "255.255.255.0"
          dhcp_start: "192.168.112.2"
          dhcp_end: "192.168.112.254"
        - name: "example"
          ip_address: "192.168.113.1"
          subnet: "255.255.255.0"
          dhcp_start: "192.168.113.2"
          dhcp_end: "192.168.113.99"
simple:
  hosts:
    centos-simple-[0:2]:
      ansible_python_interpreter: /usr/bin/python

If you want a group of VMs to all be the same, set the vars at the hostgroup level. You can still override hostgroup vars with individual vars for specific hosts, if required.

Here's an example setting various hostgroup and individual host vars.

---
## YAML based inventory, see:
## https://docs.ansible.com/ansible/latest/plugins/inventory/yaml.html
#
example:
  hosts:
    centos-7-example:
      virt_infra_state: shutdown
      virt_infra_timezone: "Australia/Melbourne"
      ansible_python_interpreter: /usr/bin/python
      virt_infra_networks:
        - name: "br0"
          type: bridge
        - name: "extra_network"
          type: nat
          model: e1000
        - name: ovs-bridge
          portgroup: ovs-portgroup
          type: ovs
      virt_infra_disks:
        - name: "boot"
        - name: "nvme"
          size: "100"
          bus: "nvme"
    centos-8-example:
      virt_infra_timezone: "Australia/Adelaide"
      ansible_python_interpreter: /usr/libexec/platform-python
    opensuse-15-example:
      virt_infra_distro: opensuse
      virt_infra_distro_image: openSUSE-Leap-15.1-JeOS.x86_64-15.1.0-OpenStack-Cloud-Current.qcow2
      virt_infra_variant: opensuse15.1
      virt_infra_disks:
        - name: "boot"
          bus: "scsi"
    ubuntu-eoan-example:
      virt_infra_cpu: 2
      virt_infra_distro: ubuntu
      virt_infra_distro_image: eoan-server-cloudimg-amd64.img
      virt_infra_variant: ubuntu18.04
  vars:
    virt_infra_ram: 1024
    virt_infra_disks:
      - name: "boot"
      - name: "data"
        bus: "sata"
    virt_infra_networks:
      - name: "example"
        type: nat
        mac: 52:54:00:aa:bb:cc

Example Playbook

I've tried to keep the Ansible as a simple, logical set of steps and not get too tricky. Having said that, the playbook is quite specific.

There are some tasks which can only be run on the KVM host and others in a specific order. Some of the tasks need to be looped through with play_hosts but only run once and delegated to the KVM host, like updating /etc/hosts and ~/.ssh/config on KVM host. Doing it this way avoids running in serial, which is messy.

This code will also help by running a bunch of validation checks on the KVM host and for your guest configs to try to catch anything that's not right.

Here is an example playbook virt-infra.yml which calls the role.

---
- hosts: all
  gather_facts: no
  roles:
    - ansible-role-virt-infra

Grab the cloud image

Before we run the playbook, download the CentOS cloud image.

curl -O https://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.qcow2
sudo mv -iv CentOS-7-x86_64-GenericCloud.qcow2 /var/lib/libvirt/images/

Run the playbook

Now run the Ansible playbook against the kvmhost and the guests in the simple group (note that we limit to both the kvmhost and the simple hostgroups).

ansible-playbook \
--ask-become-pass \
--inventory ./inventory.d \
--limit kvmhost,simple \
./virt-infra.yml

You can also override a number of guest settings on the command line.

ansible-playbook \
--ask-become-pass \
--limit kvmhost,simple \
./virt-infra.yml \
-e virt_infra_root_password=password \
-e virt_infra_disk_size=100 \
-e virt_infra_ram=4096 \
-e virt_infra_ram_max=8192 \
-e virt_infra_cpus=8 \
-e virt_infra_cpus_max=16 \
-e '{ "virt_infra_networks": [{ "name": "br0", "type": "bridge" }] }' \
-e virt_infra_state=running

Cleanup

To delete the guests in a hostgroup you could specify them (or a specific host) with --limit and pass in virt_infra_state=undefined as a command line extra arg.

This will override the guest state to undefined and if they exist, they will be deleted.

For example, to delete all VMs in the simple hostgroup.

ansible-playbook \
--ask-become-pass \
--inventory simple.yml \
--limit kvmhost,simple \
--extra-vars virt_infra_state=undefined \
./virt-infra.yml

If you want to just shut them down, try virt_infra_state=shutdown instead.

For example, to shutdown just the simple-centos-2 host.

ansible-playbook \
--ask-become-pass \
--inventory simple.yml \
--limit kvmhost,simple-centos-2 \
--extra-vars virt_infra_state=shutdown \
./virt-infra.yml

Post setup configuration

Once you have set up your infra, you could run another playbook against your same inventory to do whatever you wanted with those machines...

---
- name: Upgrade all packages
  package:
    name: '*'
    state: latest
  become: true
  register: result_package_update
  retries: 30
  delay: 10
  until: result_package_update is succeeded

- name: Install packages
  package:
    name:
      - git
      - tmux
      - vim
    state: present
  become: true
  register: result_package_install
  retries: 30
  delay: 10
  until: result_package_install is succeeded

License

GPLv3

Author Information

Chris Smart https://blog.christophersmart.com

Name		Name	Last commit message	Last commit date
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defaults		defaults
handlers		handlers
meta		meta
tasks		tasks
templates		templates
vars		vars
.gitignore		.gitignore
COPYING		COPYING
README.md		README.md

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Ansible Role: Virtual Infrastructure

Requirements

KVM host

Fedora

CentOS 7

CentOS 8

Debian

Ubuntu

openSUSE

Using routed networks

Configuring bridges with NetworkManager

Linux bridge

Using Linux bridge in inventory

Open vSwitch (OVS) bridge

Using ovs-bridge in inventory

Guest Cloud images

Role Variables

Dependencies

Example Inventory

Example Playbook

Grab the cloud image

Run the playbook

Cleanup

Post setup configuration

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Ansible Role: Virtual Infrastructure

Requirements

KVM host

Fedora

CentOS 7

CentOS 8

Debian

Ubuntu

openSUSE

Using routed networks

Configuring bridges with NetworkManager

Linux bridge

Using Linux bridge in inventory

Open vSwitch (OVS) bridge

Using ovs-bridge in inventory

Guest Cloud images

Role Variables

Dependencies

Example Inventory

Example Playbook

Grab the cloud image

Run the playbook

Cleanup

Post setup configuration

License

Author Information

About

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