WIP: Automation for configuring multivm networking #3

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raktajino wants to merge 5 commits from multivm_networking into worker_host
5 changed files with 341 additions and 0 deletions
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# Sets up local OpenQA testing environment
# This playbook is *NOT* intended for WAN-facing systems!
#
# Usages:
# # Install and configure an openQA developer host, download all current Rocky ISOs,
# # and POST a test job
# ansible-playbook playbooks/init-rocky-openqa-developer-host.yml
#
# # Only perform ISO download tasks
# ansible-playbook playbooks/init-rocky-openqa-developer-host.yml --tags=download_isos
#
# # Only perform configuration, do not download ISOs or POST a job
# ansible-playbook playbooks/init-rocky-openqa-developer-host.yml --tags=configure
#
# Created: @akatch
---
- name: Rocky OpenQA Runbook
hosts: localhost
connection: local
become: true
vars_files:
- vars/openqa.yml
# This is to try to avoid the handler issue in pre/post tasks
handlers:
- name: Import handlers
ansible.builtin.import_tasks: handlers/main.yml
pre_tasks:
- name: Check if ansible cannot be run here
ansible.builtin.stat:
path: /etc/no-ansible
register: no_ansible
- name: Verify if we can run ansible
ansible.builtin.assert:
that:
- "not no_ansible.stat.exists"
success_msg: "We are able to run on this node"
fail_msg: "/etc/no-ansible exists - skipping run on this node"
tasks:
- name: Remove openqa multivm networking configs
ansible.builtin.import_tasks: tasks/remove_openqa-multivm-networking.yml
post_tasks:
- name: Touching run file that ansible has ran here
ansible.builtin.file:
path: /var/log/ansible.run
state: touch
mode: '0644'
owner: root
group: root
...

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---
# {{ openqa_multivm_bridge_interface }} should not exist or we should use a different name
- name: Assert bridge interface does not exist
ansible.builtin.assert:
that:
- 'openqa_multivm_bridge_interface not in ansible_interfaces'
success_msg: 'interface does not exist, can proceed'
fail_msg: '{{ openqa_multivm_bridge_interface }} already exists, please supply an alternative'
- name: Install multivm networking packages
ansible.builtin.dnf:
pkg:
- os-autoinst-openvswitch
- tunctl
- network-scripts
- name: Create /etc/sysconfig/os-autoinst-openvswitch
ansible.builtin.copy:
dest: /etc/sysconfig/os-autoinst-openvswitch
mode: '0644'
content: |
OS_AUTOINST_BRIDGE_LOCAL_IP=172.16.2.2
OS_AUTOINST_BRIDGE_REWRITE_TARGET=172.17.0.0
OS_AUTOINST_USE_BRIDGE={{ openqa_multivm_bridge_interface }}
notify: restart_os-autoinst-openvswitch
- name: Create bridge interface configuration
ansible.builtin.copy:
dest: /etc/sysconfig/network-scripts/ifcfg-{{ openqa_multivm_bridge_interface }}
mode: '0644'
content: |
DEVICETYPE='ovs'
TYPE='OVSBridge'
BOOTPROTO='static'
IPADDR='172.16.2.2'
NETMASK='255.254.0.0'
DEVICE={{ openqa_multivm_bridge_interface }}
STP=off
ONBOOT='yes'
NAME='{{ openqa_multivm_bridge_interface }}'
HOTPLUG='no'
- name: Create worker tap interface configs
ansible.builtin.copy:
dest: /etc/sysconfig/network-scripts/ifcfg-tap{{ item }}
mode: '0644'
content: |
DEVICETYPE='ovs'
TYPE='OVSPort'
OVS_BRIDGE='{{ openqa_multivm_bridge_interface }}'
DEVICE='tap{{ item }}'
ONBOOT='yes'
BOOTPROTO='none'
HOTPLUG='no'
loop: "{{ range(openqa_worker_count) | list }}"
- name: Update /sbin/ifup-pre-local
ansible.builtin.template:
src: sbin/ifup-pre-local.j2
dest: /sbin/ifup-pre-local
mode: 'ug+x'
- name: Enable bridge interface for internal zone
ansible.posix.firewalld:
permanent: true
interface: '{{ openqa_multivm_bridge_interface }}'
state: enabled
zone: internal
notify: reload_firewalld
- name: Enable masquerade for public and internal zones
ansible.posix.firewalld:
masquerade: true
permanent: true
state: enabled
zone: '{{ item }}'
loop:
- public
- internal
notify: reload_firewalld
- name: Enable ipv4 IP forwarding
ansible.posix.sysctl:
name: net.ipv4.ip_forward
value: '1'
state: present
sysctl_file: /etc/sysctl.d/ip-forward.conf
sysctl_set: true
- name: Set-target ACCEPT on public zone
ansible.posix.firewalld:
permanent: true
state: present
zone: public
target: ACCEPT
notify: reload_firewalld
# Only needed for multi-host setups
- name: Add port for GRE tunnel
ansible.posix.firewalld:
permanent: true
port: 1723/tcp
state: enabled
- name: Enable openvswitch services
ansible.builtin.systemd_service:
name: "{{ item }}"
state: started
enabled: true
loop:
- openvswitch
- network
- os-autoinst-openvswitch
ignore_errors: "{{ ansible_check_mode }}"
- name: Set WORKER_CLASS for tap interfaces
community.general.ini_file:
path: /etc/openqa/workers.ini
section: global
option: WORKER_CLASS
value: qemu_x86_64,tap
state: present
mode: '0644'
notify: restart_openqa_services
- name: Enable bridge interface for openvswitch
ansible.builtin.command: ovs-vsctl add-br {{ openqa_multivm_bridge_interface }}
changed_when: true
- name: Enable capability
ansible.builtin.command: setcap CAP_NET_ADMIN=ep /usr/bin/qemu-system-x86_64
changed_when: true
...

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---
- name: Remove files
ansible.builtin.file:
path: '{{ item }}'
state: absent
loop:
- /etc/sysconfig/os-autoinst-openvswitch
- /etc/sysconfig/network-scripts/ifcfg-{{ openqa_multivm_bridge_interface }}
- name: Remove tap interface configurations
ansible.builtin.file:
path: /etc/sysconfig/network-scripts/ifcfg-tap{{ item }}
state: absent
loop: "{{ range(openqa_worker_count | int) | list }}"
- name: Delete bridge interface
ansible.builtin.command: ovs-vsctl del-br {{ openqa_multivm_bridge_interface }}
changed_when: true
- name: Disable openvswitch services
ansible.builtin.systemd:
name: "{{ item }}"
state: stopped
enabled: false
loop:
- os-autoinst-openvswitch
- openvswitch
- name: Remove packages
ansible.builtin.dnf:
pkg:
- os-autoinst-openvswitch
- tunctl
- network-scripts
state: absent
- name: Remove /sbin/ifup-pre-local
ansible.builtin.file:
path: /sbin/ifup-pre-local
state: absent
- name: Disable bridge interface for internal zone
ansible.posix.firewalld:
permanent: true
interface: br0
state: disabled
zone: internal
notify: reload_firewalld
- name: Disable masquerade for public and internal zones
ansible.posix.firewalld:
masquerade: true
permanent: true
state: disabled
zone: '{{ item }}'
loop:
- public
- internal
notify: reload_firewalld
- name: Disable ipv4 IP forwarding
ansible.posix.sysctl:
name: net.ipv4.ip_forward
value: '1'
state: absent
sysctl_file: /etc/sysctl.d/ip-forward.conf
sysctl_set: true
- name: Set-target ACCEPT on public zone
ansible.posix.firewalld:
permanent: true
state: absent
zone: public
target: ACCEPT
notify: reload_firewalld
- name: Remove port for GRE tunnel
ansible.posix.firewalld:
permanent: true
port: 1723/tcp
state: disabled
notify: reload_firewalld
- name: Set WORKER_CLASS for tap interfaces
community.general.ini_file:
path: /etc/openqa/workers.ini
section: global
option: WORKER_CLASS
value: qemu_x86_64,tap
state: absent
mode: '0644'
...

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tasks/remove_openqa.yml Normal file
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---
- name: Uninstall OpenQA packages
ansible.builtin.yum:
name: "{{ openqa_packages }}"
state: absent
- name: Delete OpenQA files and directories
ansible.builtin.file:
path: "{{ item }}"
state: absent
loop:
- "{{ openqa_homedir }}"
- /var/lib/pgsql
- /etc/openqa
- /etc/httpd/conf.d/openqa.conf
- /etc/httpd/conf.d/openqa-ssl.conf
- name: Disable httpd_can_network_connect
ansible.posix.seboolean:
name: httpd_can_network_connect
state: false
persistent: true
- name: Deny traffic for services
ansible.posix.firewalld:
service: "{{ item }}"
permanent: true
state: disabled
loop:
- http
- openqa-vnc
- name: Deny VNC traffic for local workers
ansible.posix.firewalld:
port: "{{ openqa_min_vnc_port }}-{{ openqa_max_vnc_port }}/tcp"
permanent: true
state: disabled
- name: Reload FirewallD
ansible.builtin.systemd:
name: firewalld
state: reloaded

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#!/bin/sh
if=$(echo "$1" | sed -e 's,ifcfg-,,')
iftype=$(echo "$if" | sed -e 's,[0-9]\+$,,')
# if the interface being brought up is tap[n], create
# the tap device first
if [ "$iftype" == "tap" ]; then
tunctl -u _openqa-worker -p -t "$if"
fi
# if the interface being brough up is {{ openqa_multivm_bridge_interface }}, create
# the gre tunnels
if [ "$if" == "{{ openqa_multivm_bridge_interface }}" ]; then
ovs-vsctl set bridge {{ openqa_multivm_bridge_interface }} stp_enable=true
# This is only needed for multi-host setups
{% for w in range(1, openqa_worker_count+1) %}
#ovs-vsctl --may-exist add-port {{ openqa_multivm_bridge_interface }} gre{{ w }} -- set interface gre{{ w }} type=gre options:remote_ip=172.16.2.{{ 2 + w|int }}
{% endfor %}
fi