pvc-ansible/group_vars/default/pvc.yml

---
# Logging configuration (uncomment to override defaults)
#   These default options are generally best for most clusters; override these if you want more granular
#   control over the logging output of the PVC system.
#pvc_log_to_file: False                  # Log to a file in /var/log/pvc
#pvc_log_to_stdout: True                 # Log to stdout (i.e. journald)
#pvc_log_to_zookeeper: True              # Log to Zookeeper (required for 'node log' commands)
#pvc_log_colours: True                   # Log colourful prompts for states instead of text
#pvc_log_dates: False                    # Log dates (useful with log_to_file, not useful with log_to_stdout as journald adds these)
#pvc_log_keepalives: True                # Log keepalive event every pvc_keepalive_interval seconds
#pvc_log_keepalive_cluster_details: True # Log cluster details (VMs, OSDs, load, etc.) duing keepalive events
#pvc_log_keepalive_plugin_details: True  # Log health plugin details (messages) suring keepalive events
#pvc_log_console_lines: 1000             # The number of VM console log lines to store in Zookeeper for 'vm log' commands.
#pvc_log_node_lines: 2000                # The number of node log lines to store in Zookeeper for 'node log' commands.

# Timing and fencing configuration (uncomment to override defaults)
#   These default options are generally best for most clusters; override these if you want more granular
#   control over the timings of various areas of the cluster, for instance if your hardware is slow or error-prone.
#pvc_vm_shutdown_timeout: 180            # Number of seconds before a 'shutdown' VM is forced off
#pvc_keepalive_interval: 5               # Number of seconds between keepalive ticks
#pvc_monitoring_interval: 60             # Number of seconds between monitoring plugin runs
#pvc_fence_intervals: 6                  # Number of keepalive ticks before a node is considered dead
#pvc_suicide_intervals: 0                # Number of keepalive ticks before a node consideres itself dead (0 to disable)
#pvc_fence_successful_action: migrate    # What to do with VMs when a fence is successful (migrate, None)
#pvc_fence_failed_action: None           # What to do with VMs when a fence is failed (migrate, None) - migrate is DANGEROUS without pvc_suicide_intervals set to < pvc_fence_intervals
#pvc_migrate_target_selector: mem        # The selector to use for migrating VMs if not explicitly set; one of mem, memfree, load, vcpus, vms

# Client API basic configuration
pvc_api_listen_address: "{{ pvc_upstream_floatingip }}"
pvc_api_listen_port: "7370"
pvc_api_secret_key: ""                      # Use pwgen to generate

# Client API user tokens
# Create a token (random UUID or password) for each user you wish to have access to the PVC API.
# The first token will always be used for the "local" connection, and thus at least one token MUST be defined.
pvc_api_enable_authentication: True
pvc_api_tokens:
#  - description: "myuser"
#    token: "a3945326-d36c-4024-83b3-2a8931d7785a"

# PVC API SSL configuration
# Use these options to enable SSL for the API listener, providing security over WAN connections.
# There are two options for defining the SSL certificate and key to use:
#   a) Set both pvc_api_ssl_cert_path and pvc_api_ssl_key_path to paths to an existing SSL combined (CA + cert) certificate and key, respectively, on the system.
#   b) Set both pvc_api_ssl_cert and pvc_api_ssl_key to the raw PEM-encoded contents of an SSL combined (CA + cert) certificate and key, respectively, which will be installed under /etc/pvc.
# If the _path options are non-empty, the raw entries are ignored and will not be used.
pvc_api_enable_ssl: False
pvc_api_ssl_cert_path:
pvc_api_ssl_cert: >
  # A RAW CERTIFICATE FILE, installed to /etc/pvc/api-cert.pem
pvc_api_ssl_key_path:
pvc_api_ssl_key: >
  # A RAW KEY FILE, installed to /etc/pvc/api-key.pem

# Ceph storage configuration
pvc_ceph_storage_secret_uuid: ""            # Use uuidgen to generate

# Database configuration
pvc_dns_database_name: "pvcdns"
pvc_dns_database_user: "pvcdns"
pvc_dns_database_password: ""               # Use pwgen to generate
pvc_api_database_name: "pvcapi"
pvc_api_database_user: "pvcapi"
pvc_api_database_password: ""               # Use pwgen to generate
pvc_replication_database_user: "replicator"
pvc_replication_database_password: ""       # Use pwgen to generate
pvc_superuser_database_user: "postgres"
pvc_superuser_database_password: ""         # Use pwgen to generate

# Network routing configuration
# > The ASN should be a private ASN number.
# > The list of routers are those which will learn routes to the PVC client networks via BGP;
#   they should speak BGP and allow sessions from the PVC nodes.
pvc_asn: "65500"
pvc_routers:
  - "192.168.100.1"

# PVC Node list
# > Every node configured with this playbook must be specified in this list.
pvc_nodes:
  - hostname: "pvchv1" # This name MUST match the Ansible inventory_hostname's first portion, i.e. "inventory_hostname.split('.')[0]"
    is_coordinator: yes
    node_id: 1
    router_id: "192.168.100.11"
    upstream_ip: "192.168.100.11"
    cluster_ip: "10.0.0.1"
    storage_ip: "10.0.1.1"
    ipmi_host: "{{ ipmi['hosts']['pvchv1']['hostname'] }}" # Note the node hostname key in here
    ipmi_user: "{{ ipmi['users']['pvc']['username'] }}"
    ipmi_password: "{{ ipmi['users']['pvc']['password'] }}"
    cpu_tuning:             # Example of cpu_tuning overrides per-node, only relevant if enabled; see below
      system_cpus: 2
      osd_cpus: 2
  - hostname: "pvchv2" # This name MUST match the Ansible inventory_hostname's first portion, i.e. "inventory_hostname.split('.')[0]"
    is_coordinator: yes
    node_id: 2
    router_id: "192.168.100.12"
    upstream_ip: "192.168.100.12"
    cluster_ip: "10.0.0.2"
    storage_ip: "10.0.1.2"
    ipmi_host: "{{ ipmi['hosts']['pvchv2']['hostname'] }}" # Note the node hostname key in here
    ipmi_user: "{{ ipmi['users']['pvc']['username'] }}"
    ipmi_password: "{{ ipmi['users']['pvc']['password'] }}"
  - hostname: "pvchv3" # This name MUST match the Ansible inventory_hostname's first portion, i.e. "inventory_hostname.split('.')[0]"
    is_coordinator: yes
    node_id: 3
    router_id: "192.168.100.13"
    upstream_ip: "192.168.100.13"
    cluster_ip: "10.0.0.3"
    storage_ip: "10.0.1.3"
    ipmi_host: "{{ ipmi['hosts']['pvchv3']['hostname'] }}" # Note the node hostname key in here
    ipmi_user: "{{ ipmi['users']['pvc']['username'] }}"
    ipmi_password: "{{ ipmi['users']['pvc']['password'] }}"

# Bridge device entry
# This device is passed to PVC and is used when creating bridged networks. Normal managed networks are
# created on top of the "cluster" interface defined below, however bridged networks must be created
# directly on an underlying non-vLAN network device. This can be the same underlying device as the
# upstream/cluster/storage networks (especially if the upstream network device is not a vLAN itself),
# or a different device separate from the other 3 main networks.
pvc_bridge_device: bondU        # Replace based on your network configuration
pvc_bridge_mtu: 1500            # Replace based on your network configuration

# SR-IOV device configuration
# SR-IOV enables the passing of hardware-virtualized network devices (VFs), created on top of SR-IOV-enabled
# physical NICs (PFs), into virtual machines. SR-IOV is a complex topic, and will not be discussed in detail
# here. Instead, the SR-IOV mode is disabled by default and a commented out example configuration is shown.
pvc_sriov_enable: False
#pvc_sriov_device:
#  - phy: ens1f0
#    mtu: 9000
#    vfcount: 6

# Memory tuning
# > ADVANCED TUNING: For most users, this is unnecessary and PVC will run fine with the default memory
#   allocations. Uncomment these options only low-memory situations (nodes with <32GB RAM).
#
# OSD memory limit - 939524096 (~900MB) is the lowest possible value; default is 4GB.
# > This option is *only* applied at cluster bootstrap and cannot be changed later
#   here, only by editing the `files/ceph/<cluster>/ceph.conf` file directly.
#pvc_osd_memory_limit: 939524096
#
# Zookeeper heap memory limit, sets Xms and Xmx values to the Java process; default is 512M.
# > WARNING: Unless you have an extremely limited amount of RAM, changing this setting is NOT RECOMMENDED.
#            Lowering the heap limit may cause poor performance or crashes in Zookeeper during some tasks.
#pvc_zookeeper_heap_limit: 128M   # 1/4 of default
#
# Zookeeper stack memory limit, sets Xss value to the Java process; default is 1024M.
# > WARNING: Unless you have an extremely limited amount of RAM, changing this setting is NOT RECOMMENDED.
#            Lowering the stack limit may cause poor performance or crashes in Zookeeper during some tasks.
#pvc_zookeeper_stack_limit: 256M  # 1/4 of default

# CPU tuning
# > ADVANCED TUNING: These options are strongly recommended due to the performance gains possible, but
#   most users would be able to use the default without too much issue. Read the following notes
#   carefully to determine if this setting should be enabled in your cluster.
# > NOTE: CPU tuning is only supported on Debian Bullseye (11) or newer
# > Defines CPU tuning/affinity options for various subsystems within PVC. This is useful to
#   help limit the impact that noisy elements may have on other elements, e.g. busy VMs on
#   OSDs, or system processes on latency-sensitive VMs.
# > To enable tuning, set enabled to yes.
# > Within "nodes", two counts are specified:
#    * system_cpus: The number of CPUs to assign to the "system" slice, i.e. all non-VM,
#                   non-OSD processes on the system. Should usually be at least 2, and be
#                   higher on the coordinators of larger clusters (i.e. >5 nodes).
#    * osd_cpus: The number of CPUs to assign to the "osd" slice, i.e. all OSD processes.
#                Should be at least 1 per OSD, and ideally 2 per OSD for best performance.
#   A third count, for the VM CPUs, is autogenerated based on the total node CPU count and
#   the above two values (using all remaining CPUs).
# > Tuning is done based on cores; for systems with SMT (>1 thread-per-core), all SMTs within
#   a given core are also assigned to the same CPU set. So for example, if the "system" group is
#   assigned 2 system_cpus, there are 16 cores, and there are 2 threads per core, the list will be:
#     0,1,16,17
#   leveraging the assumption that Linux puts all cores before all threads.
# > This tuning section under "nodes" is global to the cluster; to override these values on
#   a per-node basis, use the corresponding "cpu_tuning" section of a given "pvc_nodes" entry
#   as shown below.
# > If disabled after being enabled, the tuning configurations on each node will be removed
#   on the next run. A reboot of all nodes is required to fully disable the tuning.
# > IMPORTANT NOTE: Enabling CPU tuning requires a decent number of CPU cores on the system. For very
#   low-spec systems (i.e. less than at least 12 cores per node), it is advisable to leave this tuning
#   off, as otherwise very few cores will actually be allocated to VMs. With a larger number (>16 or so),
#   this tuning is likely to greatly increase storage performance, though balance between the VM workload
#   and total number of cores must be carefully considered.
cpu_tuning:
  enabled: no           # Disable or enable CPU tuning; recommended to enable for optimal storage performance
  nodes:
    system_cpus: 2      # Set based on your actual system configuration (min 2, increase on coordinators if many nodes)
    osd_cpus: 2         # Set based on your actual number of OSDs (for optimal performance, 2 per OSD)

# PVC VM autobackups
# > PVC supports autobackups, which can perform automatic snapshot-level VM backups of selected
#   virtual machines based on tags. The backups are fully managed on a consistent schedule, and
#   include both full and incremental varieties.
# > To solve the shared storage issue and ensure backups are taken off-cluster, automaticmounting
#   of remote filesystems is supported by autobackup.
pvc_autobackup:
  # Enable or disable autobackup
  # > If disabled, no timers or "/etc/pvc/autobackup.yaml" configuration will be installed, and any
  #   existing timers or configuration will be REMOVED on each run (even if manually created).
  # > Since autobackup is an integrated PVC CLI feature, the command will always be available regardless
  #   of this setting, but without this option enabled, the lack of a "/etc/pvc/autobackup.yaml" will
  #   prevent its use.
  enabled: no
  # Set the backup root path and (optional) suffix
  # > This directory will be used for autobackups, optionally suffixed with the suffix if it is present
  # > If remote mounting is enabled, the remote filesystem will be mounted at the root path; if it is
  #   not enabled, there must be a valid large(!) filesystem mounted on all coordinator nodes at this
  #   path.
  # > The suffix can be used to allow a single backup root path to back up multiple clusters without
  #   conflicts should those clusters share VM names. It is optional unless this matches your situation.
  # > The path "/tmp/backups" is usually recommended for remote mounting
  # > NOTE: If you specify it, the suffix must begin with a '/', but is relative to the root path!
  backup_root_path:   "/tmp/backups"
  backup_root_suffix: "/cluster1"
  # Set the VM tag(s) which will be selected for autobackup
  # > Autobackup selects VMs based on their tags. If a VM has a tag present in this list, it will be
  #   selected for autobackup at runtime; if not it will be ignored.
  # > Usually, the tag "autobackup" here is sufficient; the administrator should then add this tag
  #   to any VM(s) they want to use autobackups. However, any tag may be specified to keep the tag list
  #   cleaner and more focused, should the administrator choose to.
  backup_tags:
    - autobackup
  # Autobackup scheduling
  schedule:
    # Backups are performed at regular intervals via a systemd timer
    # > Optionally, forced-full backups can also be specified, which ensures consistent rotation
    #   between VMs regardless of when they are added; if forced_full_time is empty or missing, this
    #   feature is disabled
    # > This default schedule performs a (forced) full backup every Monday at midnight, then normal backups
    #   every other day at midnight (these may be full or incremental depending on the options below
    # > These options use a systemd timer date string; see "man systemd.time" for details
    normal_time:      "Tue..Sun *-*-* 0:0:00"
    forced_full_time: "Mon *-*-* 0:0:00"
    # The interval between full backups determines which backups are full and which are incrementals
    # > When a backup is run, if there are this many (inclusive) backups since the last full backup,
    #   then a new full backup is taken and rotation occurs; otherwise, an incremental backup is taken
    # > For example, a value of 1 means every backup is a full backup; a value of 2 means every other
    #   bakcup is a full backup; a value of 7 means every 7th backup is a full backup (i.e. once per week
    #   with a daily backup time).
    full_interval: 7
    # The retention count specifies how many full backups should be kept
    # > Retention cleanup is run after each full backup, and thus, that backup is counted in this number
    # > For example, a value of 2 means that there will always be at least 2 full backups. When a new
    #   full backup is taken, the oldest (i.e. 3rd) full backup is removed.
    # > When a full backup is removed, all incremental backups with that full backup as their parent are
    #   also removed.
    # > Thus, this schedule combined with a full_interval of 7 ensures there is always 2 full weekly backups,
    #   plus at least 1 full week's worth of incremental backups.
    full_retention: 2
  # Configure automatic mounting support
  # > PVC autobackup features the ability to automatically and dynamically mount and unmount remote
  #   filesystems, or, indeed, perform any arbitrary pre- or post-run tasks, using a set of arbitrary
  #   commands
  # > Automatic mountoing is optional if you choose to use a static mount on all PVC coordinators
  # > While the examples here show absolute paths, that is not required; they will run with the $PATH of the
  #   executing environment (either the "pvc" command on a CLI or a cron/systemd timer)
  # > A "{backup_root_path}" f-string/str.format type variable MAY be present in any cmds string to represent
  #   the above configured root backup path, and is which is interpolated at runtime
  # > If multiple commands are given, they will be executed in the order given; if no commands are given,
  #   nothing is executed, but the keys MUST be present
  auto_mount:
    # Enable or disable automatic mounting
    enabled: no
    # These Debian packages will be automatically installed if automatic mounting is enabled
    packages:
      # This example installs nfs-common, required for NFS mounts
      #- nfs-common
    # These commands are executed at the start of the backup run and should mount a filesystem or otherwise
    # prepare the system for the backups
    mount_cmds:
      # This example shows an NFS mount leveraging the backup_root_path variable
      #- "/usr/sbin/mount.nfs -o nfsvers=3 10.0.0.10:/backups {backup_root_path}"
    # These commands are executed at the end of the backup run and should unmount a filesystem
    unmount_cmds:
      # This example shows a generic umount leveraging the backup_root_path variable
      #- "/usr/bin/umount {backup_root_path}"

# Configuration file networks
# > Taken from base.yml's configuration; DO NOT MODIFY THIS SECTION.
pvc_upstream_device: "{{ networks['upstream']['device'] }}"
pvc_upstream_mtu: "{{ networks['upstream']['mtu'] }}"
pvc_upstream_domain: "{{ networks['upstream']['domain'] }}"
pvc_upstream_netmask: "{{ networks['upstream']['netmask'] }}"
pvc_upstream_subnet: "{{ networks['upstream']['subnet'] }}"
pvc_upstream_floatingip: "{{ networks['upstream']['floating_ip'] }}"
pvc_upstream_gatewayip: "{{ networks['upstream']['gateway_ip'] }}"
pvc_cluster_device: "{{ networks['cluster']['device'] }}"
pvc_cluster_mtu: "{{ networks['cluster']['mtu'] }}"
pvc_cluster_domain: "{{ networks['cluster']['domain'] }}"
pvc_cluster_netmask: "{{ networks['cluster']['netmask'] }}"
pvc_cluster_subnet: "{{ networks['cluster']['subnet'] }}"
pvc_cluster_floatingip: "{{ networks['cluster']['floating_ip'] }}"
pvc_storage_device: "{{ networks['storage']['device'] }}"
pvc_storage_mtu: "{{ networks['storage']['mtu'] }}"
pvc_storage_domain: "{{ networks['storage']['domain'] }}"
pvc_storage_netmask: "{{ networks['storage']['netmask'] }}"
pvc_storage_subnet: "{{ networks['storage']['subnet'] }}"
pvc_storage_floatingip: "{{ networks['storage']['floating_ip'] }}"