Dustin C. Hatch
0cd58564c9
*libvirt*'s native autostart functionality does not work well for machines that migrate between hosts. Machines lose their auto-start flag when they are migrated, and the flag is not restored if they are migrated back. This makes the feature pretty useless for us. To work around this limitation, I've added a script that is run during boot that will start the machines listed in `/etc/vm-autostart`, if they exist. That file can also insert a delay between starting two machines, which may be useful to allow services to fully start on one machine before starting another that may depend on them.
141 lines
3.2 KiB
YAML
141 lines
3.2 KiB
YAML
- name: ensure required packages are installed
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package:
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name: '{{ vmhost_required_packages }}'
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state: present
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tags:
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- install
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- name: ensure libvirtd is configured
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template:
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src: libvirtd.conf.j2
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dest: /etc/libvirt/libvirtd.conf
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mode: '0644'
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- name: ensure libvirt can use nfs
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seboolean:
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name: virt_use_nfs
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state: true
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persistent: true
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- name: ensure libvirt runtime configuration directories exists
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file:
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path: /var/lib/libvirt/config/{{ item }}
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mode: '0700'
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state: directory
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with_items:
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- qemu
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- storage
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- name: ensure libvirt runtime directory bind mounts are set
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mount:
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path: /etc/libvirt/{{ item }}
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src: /var/lib/libvirt/config/{{ item }}
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fstype: none
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opts: bind
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state: mounted
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with_items:
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- qemu
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- storage
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- name: ensure libvirtd starts at boot
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service:
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name: libvirtd
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enabled: true
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- name: ensure libvirtd is running
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service:
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name: libvirtd
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state: started
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- name: ensure libvirt networks are defined
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virt_net:
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command: define
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name: '{{ item.name }}'
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xml: '{{ lookup("template", "net-" + item.type + ".xml.j2") }}'
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with_items: '{{ libvirt_networks }}'
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- name: ensure libvirt networks are active
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virt_net:
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name: '{{ item.name }}'
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state: active
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with_items: '{{ libvirt_networks }}'
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- name: ensure libvirt networks start at boot
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virt_net:
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name: '{{ item.name }}'
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autostart: true
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with_items: '{{ libvirt_networks }}'
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- name: ensure libvirtd migration port is allowed in the firewall
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firewalld:
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port: 49152/tcp
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permanent: false
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immediate: true
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state: enabled
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notify: save firewalld configuration
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- name: ensure systemd ksm unit is installed
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copy:
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src: ksm.service
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dest: /etc/systemd/system/ksm.service
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mode: '0644'
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notify: reload systemd
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- name: ensure systemd ksm unit starts at boot
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service:
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name: ksm
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enabled: true
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- name: ensure systemd ksm unit is running
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service:
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name: ksm
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state: started
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- name: ensure required mount helper utilities are installed
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package:
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name: '{{ shared_volume_mount_packages }}'
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state: present
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tags: install
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- name: ensure storage volumes are mounted
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mount:
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path: '{{ item.mountpoint }}'
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src: '{{ item.host }}:{{ item.share }}'
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fstype: '{{ item.fstype|d("nfs") }}'
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opts: '{{ item.opts|d(omit) }}'
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state: mounted
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with_items: '{{ mount_shared_volumes }}'
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tags: mount
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- name: ensure vm-autostart script is installed
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copy:
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src: vm-autostart.sh
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dest: /usr/local/libexec/vm-autostart.sh
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mode: u=rwx,go=rx
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owner: root
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group: root
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tags:
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- install
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- vm-autostart
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- name: ensure vm-autostart is configured
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template:
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src: vm-autostart.j2
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dest: /etc/vm-autostart
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mode: u=rw,go=r
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owner: root
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group: root
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tags:
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- vm-autostart
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- name: ensure vm-autostart.service unit file is installed
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copy:
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src: vm-autostart.service
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dest: /etc/systemd/system/vm-autostart.service
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mode: u=rw,go=r
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owner: root
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group: root
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notify:
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- reload systemd
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tags:
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- vm-autostart
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- systemd
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- name: ensure vm-autostart.service is enabled
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service:
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name: vm-autostart
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enabled: true
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tags:
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- service
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