Prerequisite
Make sure that libvirt is installed and the qemu:///system connection is working. Add your user to the kvm group.
Set up a Bridge Network
So we can ssh into the VM. Run virt-manager as root and go to Edit -> Connection details. Create a virtual network that looks as follows:
<network>
<name>network</name>
<uuid>182ad67f-883a-49a2-972c-8c4393331e4a</uuid>
<forward mode="nat">
<nat>
<port start="1024" end="65535"/>
</nat>
</forward>
<bridge name="virbr0" stp="on" delay="0"/>
<mac address="52:54:00:ef:53:92"/>
<domain name="network"/>
<ip address="192.168.100.1" netmask="255.255.255.0">
<dhcp>
<range start="192.168.100.128" end="192.168.100.254"/>
</dhcp>
</ip>
</network>
Creating a VM
Install (create) a new VM with a 12GB drive and attach the given ISO to its CD-ROM (note: distros like Fedora require around 14GB just for the base install). Attach it to the virbr0 network bridge so we can ssh into it.
sudo virt-install --name debian10 --ram=4096 --vcpus=2 --disk path=/home/alex/vms/debian10.qcow2,bus=virtio,size=12 -c /home/alex/vms/iso/debian-10.0.0-amd64-xfce-CD-1.iso --network bridge:virbr0 --console pty,target.type=virtio
This will now wait for installation to finish. Open virt-manager as root and you should see the VM as running. Open it and follow the steps to install the distro on the image.
Once installed, open the VM and make sure that the user we will use can sudo without a password.
sudo useradd -m ansible -p ansible
sudo passwd ansible # set to "ansible"
sudo visudo # append "ansible ALL=(ALL) NOPASSWD: ALL"
Enable the SSH server service.
# for systemd
systemctl enable sshd
On some systems, like OpenSUSE, you need to enable port 22 on the firewall.
firewall-cmd --permanent --add-port=22/tcp
firewall-cmd --reload
Set the hostname to the same name we used for the VM.
sudo hostname-ctl set-hostname debian10
The VM is now saved in virt-manager and can be accessed any time with the libvirt API in qemu:///system.
Generate and Install SSH Keys
Generate an SSH key pair on the host system and install it into each VM so we can SSH without passwords.
ssh-keygen
Check the IP address of VMs using virsh
# optional step to find the name of the network, in this case "network"
sudo virsh net-list
# check IP addresses allocated to each machine
sudo virsh net-dhcp-leases network
Install the SSH keys to each machine (make sure that openssh-server is instaled on each)
ssh-copy-id -i ~/.ssh/ansible_rsa.pub ansible@192.168.100.170
Set up Ansible Hosts
Add the following to /etc/ansible/hosts or somewhere that will be passed to ansible using -i
debian10 ansible_user=ansible ansible_host=192.168.100.170
ubuntu1904 ansible_user=ansible ansible_host=192.168.100.231
Try the following command to verify that ansible can reach the hosts
ansible -i ./ansible-conf.ini -m ping all
Ansible Playbook
Create a playbook. Example:
---
- hosts: ubuntu1904
tasks:
- name: Copy file from master to ubuntu1904
copy: src=. dest=/tmp/mydir
- name: Ensure dependencies are installed
become: yes
apt:
name: ['libgtk-3-dev', 'help2man', 'python3-sphinx' ]
update_cache: yes
state: present
- name: Make Ubuntu 19.04 build
shell: cd /tmp/mydir && make clean && make ubuntu1904
- name: Deploy artifacts
fetch: src=/tmp/mydir/build/debian10/zrythm_{{ version }}-1_amd64.deb dest=./artifacts/ubuntu1904/zrythm_{{ version }}-1_amd64.deb flat=yes
- hosts: debian10
tasks:
- name: Copy file from master to debian10
copy: src=. dest=/tmp/mydir
- name: Ensure dependencies are installed
become: yes
apt:
name: ['libgtk-3-dev', 'help2man', 'python3-sphinx' ]
update_cache: yes
state: present
update_cache: yes
state: present
- name: Make Debian 10 build
shell: cd /tmp/mydir && make clean && make debian10
register: results
- name: show results
debug: msg={{ results.stdout_lines }}
- name: Deploy artifacts
fetch: src=/tmp/mydir/build/debian10/zrythm_{{ version }}-1_amd64.deb dest=./artifacts/debian10/zrythm_{{ version }}-1_amd64.deb flat=yes
Note: Debian-based systems need to have python-apt installed to use the apt module.
Run the playbook:
ansible-playbook -i ./ansible-conf.ini playbook.yml --extra-vars "version=0.7.186" -v
