Provided by: masakari-monitors-common_18.0.0-0ubuntu1_all 
NAME
masakari-monitors - masakari-monitors 18.0.0
Contents:
MASAKARI-MONITORS
Monitors for Masakari
Monitors for Masakari provides Virtual Machine High Availability (VMHA) service for
OpenStack clouds by automatically detecting the failure events such as VM process down,
provisioning process down, and nova-compute host failure. If it detect the events, it
sends notifications to the masakari-api.
Original version of Masakari: https://github.com/ntt-sic/masakari
Tokyo Summit Session: https://www.youtube.com/watch?v=BmjNKceW_9A
Monitors for Masakari is distributed under the terms of the Apache License, Version 2.0.
The full terms and conditions of this license are detailed in the LICENSE file.
• Free software: Apache license
• Documentation: https://docs.openstack.org/masakari-monitors
• Source: https://git.openstack.org/cgit/openstack/masakari-monitors
• Bugs: https://bugs.launchpad.net/masakari-monitors
Configure masakari-monitors
1. Clone masakari using:
$ git clone https://github.com/openstack/masakari-monitors.git
2. Create masakarimonitors directory in /etc/.
3. Run setup.py from masakari-monitors:
$ sudo python setup.py install
4. Copy masakarimonitors.conf and process_list.yaml files from masakari-monitors/etc/ to
/etc/masakarimonitors folder and make necessary changes to the masakarimonitors.conf
and process_list.yaml files. To generate the sample masakarimonitors.conf file, run
the following command from the top level of the masakari-monitors directory:
$ tox -egenconfig
5. To run masakari-processmonitor, masakari-hostmonitor and masakari-instancemonitor
simply use following binary:
$ masakari-processmonitor
$ masakari-hostmonitor
$ masakari-instancemonitor
Features
• TODO
INSTALLATION
At the command line:
$ pip install masakari-monitors
Or, if you have virtualenvwrapper installed:
$ mkvirtualenv masakari-monitors
$ pip install masakari-monitors
USAGE
Monitors for Masakari:
masakari-hostmonitor
Monitor Overview
The masakari-hostmonitor provides compute node High Availability for OpenStack clouds by
automatically detecting compute nodes failure via monitor driver.
How does it work based on pacemaker & corosync?
• Pacemaker or pacemaker-remote is required to install into compute nodes to form a
pacemaker cluster.
• The compute node’s status is depending on the heartbeat between the compute node and the
cluster. Once the node lost the heartbeat, masakari-hostmonitor in other nodes will
detect the failure and send notifications to masakari-api.
How does it work based on consul?
• If the nodes in the cloud have multiple interfaces to connect to management network,
tenant network or storage network, monitor driver based on consul is another choice.
Consul agents are required to install into all noedes, which make up multiple consul
clusters.
Here is an example to show how to make up one consul cluster.
Consul Usage
Consul overview
Consul is a service mesh solution providing a full featured control plane with service
discovery, configuration, and segmentation functionality. Each of these features can be
used individually as needed, or they can be used together to build a full service mesh.
The Consul agent is the core process of Consul. The Consul agent maintains membership
information, registers services, runs checks, responds to queries, and more.
Consul clients can provide any number of health checks, either associated with a given
service or with the local node. This information can be used by an operator to monitor
cluster health.
Please refer to Consul Agent Overview.
Test Environment
There are three controller nodes and two compute nodes in the test environment. Every
node has three network interfaces. The first interface is used for management, with an ip
such as ‘192.168.101.*’. The second interface is used to connect to storage, with an ip
such as ‘192.168.102.*’. The third interface is used for tenant, with an ip such as
‘192.168.103.*’.
Download Consul
Download Consul package for CentOS. Other OS please refer to Download Consul.
sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://rpm.releases.hashicorp.com/RHEL/hashicorp.repo
sudo yum -y install Consul
Configure Consul agent
Consul agent must runs on every node. Consul server agent runs on controller nodes, while
Consul client agent runs on compute nodes, which makes up one Consul cluster.
The following is an example of a config file for Consul server agent which binds to
management interface of the host.
management.json
{
"bind_addr": "192.168.101.1",
"datacenter": "management",
"data_dir": "/tmp/consul_m",
"log_level": "INFO",
"server": true,
"bootstrap_expect": 3,
"node_name": "node01",
"addresses": {
"http": "192.168.101.1"
},
"ports": {
"http": 8500,
"serf_lan": 8501
},
"retry_join": ["192.168.101.1:8501", "192.168.101.2:8501", "192.168.101.3:8501"]
}
The following is an example of a config file for Consul client agent which binds to
management interface of the host.
management.json
{
"bind_addr": "192.168.101.4",
"datacenter": "management",
"data_dir": "/tmp/consul_m",
"log_level": "INFO",
"node_name": "node04",
"addresses": {
"http": "192.168.101.4"
},
"ports": {
"http": 8500,
"serf_lan": 8501
},
"retry_join": ["192.168.101.1:8501", "192.168.101.2:8501", "192.168.101.3:8501"]
}
Use the tenant or storage interface ip and ports when config agent in tenant or storage
datacenter.
Please refer to Consul Agent Configuration.
Start Consul agent
The Consul agent is started by the following command.
# Consul agent –config-file management.json
Test Consul installation
After all Consul agents installed and started, you can see all nodes in the cluster by the
following command.
# Consul members -http-addr=192.168.101.1:8500
Node Address Status Type Build Protocol DC
node01 192.168.101.1:8501 alive server 1.10.2 2 management
node02 192.168.101.2:8501 alive server 1.10.2 2 management
node03 192.168.101.3:8501 alive server 1.10.2 2 management
node04 192.168.101.4:8501 alive client 1.10.2 2 management
node05 192.168.101.5:8501 alive client 1.10.2 2 management
• The compute node’s status is depending on assembly of multiple interfaces connectivity
status, which are retrieved from multiple consul clusters. Then it sends notifition to
trigger host failure recovery according to defined HA strategy - host states and the
corresponding actions.
Related configurations
This section in masakarimonitors.conf shows an example of how to configure the hostmonitor
if you choice monitor driver based on pacemaker.
[host]
# Driver that hostmonitor uses for monitoring hosts.
monitoring_driver = default
# Monitoring interval(in seconds) of node status.
monitoring_interval = 60
# Do not check whether the host is completely down.
# Possible values:
# * True: Do not check whether the host is completely down.
# * False: Do check whether the host is completely down.
# If ipmi RA is not set in pacemaker, this value should be set True.
disable_ipmi_check = False
# Timeout value(in seconds) of the ipmitool command.
ipmi_timeout = 5
# Number of ipmitool command retries.
ipmi_retry_max = 3
# Retry interval(in seconds) of the ipmitool command.
ipmi_retry_interval = 10
# Only monitor pacemaker-remotes, ignore the status of full cluster
# members.
restrict_to_remotes = False
# Standby time(in seconds) until activate STONITH.
stonith_wait = 30
# Timeout value(in seconds) of the tcpdump command when monitors
# the corosync communication.
tcpdump_timeout = 5
# The name of interface that corosync is using for mutual communication
# between hosts.
# If there are multiple interfaces, specify them in comma-separated
# like 'enp0s3,enp0s8'.
# The number of interfaces you specify must be equal to the number of
# corosync_multicast_ports values and must be in correct order with
# relevant ports in corosync_multicast_ports.
corosync_multicast_interfaces = enp0s3,enp0s8
# The port numbers that corosync is using for mutual communication
# between hosts.
# If there are multiple port numbers, specify them in comma-separated
# like '5405,5406'.
# The number of port numbers you specify must be equal to the number of
# corosync_multicast_interfaces values and must be in correct order with
# relevant interfaces in corosync_multicast_interfaces.
corosync_multicast_ports = 5405,5406
If you want to use or test monitor driver based on consul, please modify following
configuration.
[host]
# Driver that hostmonitor uses for monitoring hosts.
monitoring_driver = consul
[consul]
# Addr for local consul agent in management datacenter.
# The addr is make up of the agent's bind_addr and http port,
# such as '192.168.101.1:8500'.
agent_manage = $(CONSUL_MANAGEMENT_ADDR)
# Addr for local consul agent in tenant datacenter.
agent_tenant = $(CONSUL_TENANT_ADDR)
# Addr for local consul agent in storage datacenter.
agent_storage = $(CONSUL_STORAGE_ADDR)
# Config file for consul health action matrix.
matrix_config_file = /etc/masakarimonitors/matrix.yaml
The matrix_config_file shows the HA strategy. Matrix is combined by host health and
actions. The ‘health: [x, x, x]’, repreasents assembly status of SEQUENCE. Action, means
which actions it will trigger if host health turns into, while ‘recovery’ means it will
trigger one host failure recovery workflow. User can define the HA strategy according to
the physical environment. For example, if there is just 1 cluster to monitor management
network connectivity, the user just need to configurate $(CONSUL_MANAGEMENT_ADDR) in
consul section of the hostmontior’ configuration file, and change the HA strategy in
/etc/masakarimonitors/matrix.yaml as following:
sequence: ['manage']
matrix:
- health: ['up']
action: []
- health: ['down']
action: ['recovery']
Then the hostmonitor by consul works as same as the hostmonitor by pacemaker.
masakari-instancemonitor
Monitor Overview
The masakari-instancemonitor provides Virtual Machine High Availability for OpenStack
clouds by automatically detecting VMs domain events via libvirt. If it detects specific
libvirt events, it sends notifications to the masakari-api.
How does it work?
• It runs libvirt event loop in a background thread.
• Invoking libvirt.virEventRegisterDefaultImpl() will register libvirt’s default event
loop implementation.
• Invoking libvirt.virEventRunDefaultImpl() will perform one iteration of the libvirt
default event loop.
• Invoking conn.domainEventRegisterAny() will register event callbacks against libvirt
connection instances. The callbacks registered will be triggered from the execution
context of libvirt.virEventRunDefaultImpl(), which will send notifications to the
masakari-api.
• It will reconnect to libvirt and reprocess if disconnected.
Related configurations
This section in masakarimonitors.conf shows an example of how to configure the monitor.
[libvirt]
# Override the default libvirt URI.
connection_uri = qemu:///system
masakari-introspectiveinstancemonitor
Monitor Overview
The masakari-introspectiveinstancemonitor provides Virtual Machine HA for OpenStack clouds
by automatically detecting the system-level failure events via QEMU Guest Agent. If it
detects VM heartbeat failure events, it sends notifications to the masakari-api.
How does it work?
• libvirt and QEMU Guest Agent are used as the underlying protocol for messaging to and
from VM.
• The host-side qemu-agent sockets are used to detemine whether VMs are configured with
QEMU Guest Agent.
• qemu-guest-ping is used as the monitoring heartbeat.
• For the future release, we can pass through arbitrary guest agent commands to check the
health of the applications inside a VM.
Related configurations
This section in masakarimonitors.conf shows an example of how to configure the monitor.
[libvirt]
# Override the default libvirt URI.
connection_uri = qemu:///system
[introspectiveinstancemonitor]
# Guest monitoring interval of VM status (in seconds).
# * The value should not be too low as there should not be false negative
# * for reporting QEMU_GUEST_AGENT failures
# * VM needs time to do powering-off.
# * guest_monitoring_interval should be greater than
# * the time to SHUTDOWN VM gracefully.
guest_monitoring_interval = 10
# Guest monitoring timeout (in seconds).
guest_monitoring_timeout = 2
# Failure threshold before sending notification.
guest_monitoring_failure_threshold = 3
# The file path of qemu guest agent sock.
qemu_guest_agent_sock_path = \
/var/lib/libvirt/qemu/org\.qemu\.guest_agent\..*\.instance-.*\.sock
masakari-processmonitor
Monitor Overview
The masakari-processmonitor, provides key process High Availability for OpenStack clouds
by automatically detecting the process failure. If it detects process failure, it sends
notifications to masakari-api.
If your OpenStack service runs in container(pod), this processmonitor will not work as
expected. It is recommended not to deploy processmonitor.
How does it work?
• Processes to be monitored should be pre-configured in process_list.yaml file.
Define one process to be monitored as follows:
process_name: [Name of the process as it in 'ps -ef'.]
start_command: [Start command of the process.]
pre_start_command: [Command which is executed before start_command.]
post_start_command: [Command which is executed after start_command.]
restart_command: [Restart command of the process.]
pre_restart_command: [Command which is executed before restart_command.]
post_restart_command: [Command which is executed after restart_command.]
run_as_root: [Bool value whether to execute commands as root authority.]
Sample of definitions is shown as follows:
# nova-compute
process_name: /usr/local/bin/nova-compute
start_command: systemctl start nova-compute
pre_start_command:
post_start_command:
restart_command: systemctl restart nova-compute
pre_restart_command:
post_restart_command:
run_as_root: True
• If masakari-processmonitor detects one process failure, it will try to restart it
firstly. After several retries failed, it sends notification to masakari-api.
Related configurations
This section in masakarimonitors.conf shows an example of how to configure the monitor.
[process]
# Interval in seconds for checking a process.
check_interval = 5
# Number of retries when the failure of restarting a process.
restart_retries = 3
# Interval in seconds for restarting a process.
restart_interval = 5
# The file path of process list.
process_list_path = /etc/masakarimonitors/process_list.yaml
MASAKARI MONITORS CONFIGURATION OPTIONS
The following is an overview of all available configuration options in masakari-monitors.
To see sample configuration file, see Masakari Monitors Sample Configuration File.
DEFAULT
tempdir
Type string
Default
<None>
Explicitly specify the temporary working directory.
monkey_patch
Type boolean
Default
False
Determine if monkey patching should be applied.
Related options:
• monkey_patch_modules: This must have values set for this option to have
any effect
monkey_patch_modules
Type list
Default
[]
List of modules/decorators to monkey patch.
This option allows you to patch a decorator for all functions in specified modules.
Related options:
• monkey_patch: This must be set to True for this option to have any effect
hostname
Type string
Default
lcy02-amd64-065
Hostname, FQDN or IP address of this host. Must be valid within AMQP key.
Possible values:
• String with hostname, FQDN or IP address. Default is hostname of this host.
DEPRECATED VARIATIONS
┌────────┬──────┐
│Group │ Name │
├────────┼──────┤
│DEFAULT │ host │
└────────┴──────┘
instancemonitor_manager
Type string
Default
masakarimonitors.instancemonitor.instance.InstancemonitorManager
Full class name for the Manager for instancemonitor.
introspectiveinstancemonitor_manager
Type string
Default
masakarimonitors.introspectiveinstancemonitor.instance.IntrospectiveInstanceMonitorManager
Full class name for introspectiveinstancemonitor.
processmonitor_manager
Type string
Default
masakarimonitors.processmonitor.process.ProcessmonitorManager
Full class name for the Manager for processmonitor.
hostmonitor_manager
Type string
Default
masakarimonitors.hostmonitor.host.HostmonitorManager
Full class name for the Manager for hostmonitor.
debug
Type boolean
Default
False
Mutable
This option can be changed without restarting.
If set to true, the logging level will be set to DEBUG instead of the default INFO
level.
log_config_append
Type string
Default
<None>
Mutable
This option can be changed without restarting.
The name of a logging configuration file. This file is appended to any existing
logging configuration files. For details about logging configuration files, see the
Python logging module documentation. Note that when logging configuration files are
used then all logging configuration is set in the configuration file and other
logging configuration options are ignored (for example, log-date-format).
DEPRECATED VARIATIONS
┌────────┬────────────┐
│Group │ Name │
├────────┼────────────┤
│DEFAULT │ log-config │
├────────┼────────────┤
│DEFAULT │ log_config │
└────────┴────────────┘
log_date_format
Type string
Default
%Y-%m-%d %H:%M:%S
Defines the format string for %(asctime)s in log records. Default: the value above
. This option is ignored if log_config_append is set.
log_file
Type string
Default
<None>
(Optional) Name of log file to send logging output to. If no default is set,
logging will go to stderr as defined by use_stderr. This option is ignored if
log_config_append is set.
DEPRECATED VARIATIONS
┌────────┬─────────┐
│Group │ Name │
├────────┼─────────┤
│DEFAULT │ logfile │
└────────┴─────────┘
log_dir
Type string
Default
<None>
(Optional) The base directory used for relative log_file paths. This option is
ignored if log_config_append is set.
DEPRECATED VARIATIONS
┌────────┬────────┐
│Group │ Name │
├────────┼────────┤
│DEFAULT │ logdir │
└────────┴────────┘
watch_log_file
Type boolean
Default
False
Uses logging handler designed to watch file system. When log file is moved or
removed this handler will open a new log file with specified path instantaneously.
It makes sense only if log_file option is specified and Linux platform is used.
This option is ignored if log_config_append is set.
WARNING:
This option is deprecated for removal. Its value may be silently ignored in the
future.
Reason This function is known to have bene broken for long time, and depends on
the unmaintained library
use_syslog
Type boolean
Default
False
Use syslog for logging. Existing syslog format is DEPRECATED and will be changed
later to honor RFC5424. This option is ignored if log_config_append is set.
use_journal
Type boolean
Default
False
Enable journald for logging. If running in a systemd environment you may wish to
enable journal support. Doing so will use the journal native protocol which
includes structured metadata in addition to log messages.This option is ignored if
log_config_append is set.
syslog_log_facility
Type string
Default
LOG_USER
Syslog facility to receive log lines. This option is ignored if log_config_append
is set.
use_json
Type boolean
Default
False
Use JSON formatting for logging. This option is ignored if log_config_append is
set.
use_stderr
Type boolean
Default
False
Log output to standard error. This option is ignored if log_config_append is set.
use_eventlog
Type boolean
Default
False
Log output to Windows Event Log.
WARNING:
This option is deprecated for removal. Its value may be silently ignored in the
future.
Reason Windows support is no longer maintained.
log_color
Type boolean
Default
False
(Optional) Set the ‘color’ key according to log levels. This option takes effect
only when logging to stderr or stdout is used. This option is ignored if
log_config_append is set.
log_rotate_interval
Type integer
Default
1
The amount of time before the log files are rotated. This option is ignored unless
log_rotation_type is set to “interval”.
log_rotate_interval_type
Type string
Default
days
Valid Values
Seconds, Minutes, Hours, Days, Weekday, Midnight
Rotation interval type. The time of the last file change (or the time when the
service was started) is used when scheduling the next rotation.
max_logfile_count
Type integer
Default
30
Maximum number of rotated log files.
max_logfile_size_mb
Type integer
Default
200
Log file maximum size in MB. This option is ignored if “log_rotation_type” is not
set to “size”.
log_rotation_type
Type string
Default
none
Valid Values
interval, size, none
Log rotation type.
Possible values
interval
Rotate logs at predefined time intervals.
size Rotate logs once they reach a predefined size.
none Do not rotate log files.
logging_context_format_string
Type string
Default
%(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s
[%(global_request_id)s %(request_id)s %(user_identity)s]
%(instance)s%(message)s
Format string to use for log messages with context. Used by
oslo_log.formatters.ContextFormatter
logging_default_format_string
Type string
Default
%(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-]
%(instance)s%(message)s
Format string to use for log messages when context is undefined. Used by
oslo_log.formatters.ContextFormatter
logging_debug_format_suffix
Type string
Default
%(funcName)s %(pathname)s:%(lineno)d
Additional data to append to log message when logging level for the message is
DEBUG. Used by oslo_log.formatters.ContextFormatter
logging_exception_prefix
Type string
Default
%(asctime)s.%(msecs)03d %(process)d ERROR %(name)s %(instance)s
Prefix each line of exception output with this format. Used by
oslo_log.formatters.ContextFormatter
logging_user_identity_format
Type string
Default
%(user)s %(project)s %(domain)s %(system_scope)s %(user_domain)s
%(project_domain)s
Defines the format string for %(user_identity)s that is used in
logging_context_format_string. Used by oslo_log.formatters.ContextFormatter
default_log_levels
Type list
Default
['amqp=WARN', 'amqplib=WARN', 'boto=WARN', 'qpid=WARN', 'sqlalchemy=WARN',
'suds=INFO', 'oslo.messaging=INFO', 'oslo_messaging=INFO', 'iso8601=WARN',
'requests.packages.urllib3.connectionpool=WARN',
'urllib3.connectionpool=WARN', 'websocket=WARN',
'requests.packages.urllib3.util.retry=WARN', 'urllib3.util.retry=WARN',
'keystonemiddleware=WARN', 'routes.middleware=WARN', 'stevedore=WARN',
'taskflow=WARN', 'keystoneauth=WARN', 'oslo.cache=INFO', 'oslo_policy=INFO',
'dogpile.core.dogpile=INFO']
List of package logging levels in logger=LEVEL pairs. This option is ignored if
log_config_append is set.
publish_errors
Type boolean
Default
False
Enables or disables publication of error events.
instance_format
Type string
Default
"[instance: %(uuid)s] "
The format for an instance that is passed with the log message.
instance_uuid_format
Type string
Default
"[instance: %(uuid)s] "
The format for an instance UUID that is passed with the log message.
rate_limit_interval
Type integer
Default
0
Interval, number of seconds, of log rate limiting.
rate_limit_burst
Type integer
Default
0
Maximum number of logged messages per rate_limit_interval.
rate_limit_except_level
Type string
Default
CRITICAL
Valid Values
CRITICAL, ERROR, INFO, WARNING, DEBUG, ‘’
Log level name used by rate limiting. Logs with level greater or equal to
rate_limit_except_level are not filtered. An empty string means that all levels are
filtered.
fatal_deprecations
Type boolean
Default
False
Enables or disables fatal status of deprecations.
api
Configuration options for sending notifications.
region
Type string
Default
RegionOne
Region name.
api_version
Type string
Default
v1
Masakari API Version.
api_interface
Type string
Default
public
Interface of endpoint.
auth_url
Type unknown type
Default
<None>
Authentication URL
system_scope
Type unknown type
Default
<None>
Scope for system operations
domain_id
Type unknown type
Default
<None>
Domain ID to scope to
domain_name
Type unknown type
Default
<None>
Domain name to scope to
project_id
Type unknown type
Default
<None>
Project ID to scope to
DEPRECATED VARIATIONS
┌──────┬───────────┐
│Group │ Name │
├──────┼───────────┤
│api │ tenant-id │
├──────┼───────────┤
│api │ tenant_id │
└──────┴───────────┘
project_name
Type unknown type
Default
<None>
Project name to scope to
DEPRECATED VARIATIONS
┌──────┬─────────────┐
│Group │ Name │
├──────┼─────────────┤
│api │ tenant-name │
├──────┼─────────────┤
│api │ tenant_name │
└──────┴─────────────┘
project_domain_id
Type unknown type
Default
<None>
Domain ID containing project
project_domain_name
Type unknown type
Default
<None>
Domain name containing project
trust_id
Type unknown type
Default
<None>
ID of the trust to use as a trustee use
default_domain_id
Type unknown type
Default
<None>
Optional domain ID to use with v3 and v2 parameters. It will be used for both the
user and project domain in v3 and ignored in v2 authentication.
default_domain_name
Type unknown type
Default
<None>
Optional domain name to use with v3 API and v2 parameters. It will be used for both
the user and project domain in v3 and ignored in v2 authentication.
user_id
Type unknown type
Default
<None>
User id
username
Type unknown type
Default
<None>
Username
DEPRECATED VARIATIONS
┌──────┬───────────┐
│Group │ Name │
├──────┼───────────┤
│api │ user-name │
├──────┼───────────┤
│api │ user_name │
└──────┴───────────┘
user_domain_id
Type unknown type
Default
<None>
User’s domain id
user_domain_name
Type unknown type
Default
<None>
User’s domain name
password
Type unknown type
Default
<None>
User’s password
callback
retry_max
Type integer
Default
12
Number of retries when the notification processing is error.
retry_interval
Type integer
Default
10
Trial interval of time of the notification processing is error(in seconds).
consul
agent_manage
Type string
Default
<None>
Addr for local consul agent in management datacenter.
agent_tenant
Type string
Default
<None>
Addr for local consul agent in tenant datacenter.
agent_storage
Type string
Default
<None>
Addr for local consul agent in storage datacenter.
matrix_config_file
Type string
Default
<None>
Config file for consul health action matrix.
cors
allowed_origin
Type list
Default
<None>
Indicate whether this resource may be shared with the domain received in the
requests “origin” header. Format: “<protocol>://<host>[:<port>]”, no trailing
slash. Example: https://horizon.example.com
allow_credentials
Type boolean
Default
True
Indicate that the actual request can include user credentials
expose_headers
Type list
Default
[]
Indicate which headers are safe to expose to the API. Defaults to HTTP Simple
Headers.
max_age
Type integer
Default
3600
Maximum cache age of CORS preflight requests.
allow_methods
Type list
Default
['OPTIONS', 'GET', 'HEAD', 'POST', 'PUT', 'DELETE', 'TRACE', 'PATCH']
Indicate which methods can be used during the actual request.
allow_headers
Type list
Default
[]
Indicate which header field names may be used during the actual request.
healthcheck
path
Type string
Default
/healthcheck
The path to respond to healtcheck requests on.
WARNING:
This option is deprecated for removal. Its value may be silently ignored in the
future.
detailed
Type boolean
Default
False
Show more detailed information as part of the response. Security note: Enabling
this option may expose sensitive details about the service being monitored. Be sure
to verify that it will not violate your security policies.
backends
Type list
Default
[]
Additional backends that can perform health checks and report that information back
as part of a request.
allowed_source_ranges
Type list
Default
[]
A list of network addresses to limit source ip allowed to access healthcheck
information. Any request from ip outside of these network addresses are ignored.
ignore_proxied_requests
Type boolean
Default
False
Ignore requests with proxy headers.
disable_by_file_path
Type string
Default
<None>
Check the presence of a file to determine if an application is running on a port.
Used by DisableByFileHealthcheck plugin.
disable_by_file_paths
Type list
Default
[]
Check the presence of a file based on a port to determine if an application is
running on a port. Expects a “port:path” list of strings. Used by
DisableByFilesPortsHealthcheck plugin.
enable_by_file_paths
Type list
Default
[]
Check the presence of files. Used by EnableByFilesHealthcheck plugin.
host
monitoring_driver
Type string
Default
default
Driver that hostmonitor uses for monitoring hosts.
monitoring_interval
Type integer
Default
60
Monitoring interval(in seconds) of node status.
monitoring_samples
Type integer
Default
1
Monitoring probes to collect before making the decision to send Masakari
notification about the node status. If and only if monitoring_samples consecutive
reports have the same status, will the Masakari notification be sent.
api_retry_max
Type integer
Default
12
Number of retries for send a notification in hostmonitor.
api_retry_interval
Type integer
Default
10
Trial interval of time of the notification processing is error(in seconds).
disable_ipmi_check
Type boolean
Default
False
Do not check whether the host is completely down.
Possible values:
• True: Do not check whether the host is completely down.
• False: Do check whether the host is completely down.
If ipmi RA is not set in pacemaker, this value should be set True.
restrict_to_remotes
Type boolean
Default
False
Only monitor pacemaker-remotes, ignore the status of full cluster members.
ipmi_timeout
Type integer
Default
5
Timeout value(in seconds) of the ipmitool command.
ipmi_retry_max
Type integer
Default
3
Number of ipmitool command retries.
ipmi_retry_interval
Type integer
Default
10
Retry interval(in seconds) of the ipmitool command.
stonith_wait
Type integer
Default
30
Standby time(in seconds) until activate STONITH.
tcpdump_timeout
Type integer
Default
5
Timeout value(in seconds) of the tcpdump command when monitors the corosync
communication.
corosync_multicast_interfaces
Type string
Default
<None>
The name of interface that corosync is using for mutual communication between
hosts. If there are multiple interfaces, specify them in comma-separated like
‘enp0s3,enp0s8’. The number of interfaces you specify must be equal to the number
of corosync_multicast_ports values and must be in correct order with relevant ports
in corosync_multicast_ports.
corosync_multicast_ports
Type string
Default
<None>
The port numbers that corosync is using for mutual communication between hosts. If
there are multiple port numbers, specify them in comma-separated like ‘5405,5406’.
The number of port numbers you specify must be equal to the number of
corosync_multicast_interfaces values and must be in correct order with relevant
interfaces in corosync_multicast_interfaces.
pacemaker_node_type
Type string
Default
autodetect
Valid Values
autodetect, cluster, remote
Using this option, one can avoid systemd checks that would establish whether this
hostmonitor is running alongside Corosync and Pacemaker (the cluster stack) or
Pacemaker Remote (the remote stack).
The default (autodetect) ensures backward compatibility and means systemd is used
to check the stack.
introspectiveinstancemonitor
guest_monitoring_interval
Type integer
Default
10
Guest monitoring interval of VM status (in seconds). * The value should not be too
low as there should not be false negative * for reporting QEMU_GUEST_AGENT failures
* VM needs time to do powering-off. * guest_monitoring_interval should be greater
than * the time to SHUTDOWN VM gracefully. * e.g. | 565da9ba-3c0c-4087-83ca | iim1
| ACTIVE | powering-off | Running
guest_monitoring_timeout
Type integer
Default
2
Guest monitoring timeout (in seconds).
guest_monitoring_failure_threshold
Type integer
Default
3
Failure threshold before sending notification.
qemu_guest_agent_sock_path
Type string
Default
/var/lib/libvirt/qemu/org\.qemu\.guest_agent\..*\.instance-.*\.sock
• The file path of qemu guest agent sock.
• Please use Python raw string notation as regular expressions.
e.g. r’/var/lib/libvirt/qemu/org.qemu.guest_agent..*.instance-.*.sock’
libvirt
connection_uri
Type string
Default
qemu:///system
Override the default libvirt URI.
oslo_middleware
max_request_body_size
Type integer
Default
114688
The maximum body size for each request, in bytes.
DEPRECATED VARIATIONS
┌────────┬─────────────────────────────┐
│Group │ Name │
├────────┼─────────────────────────────┤
│DEFAULT │ osapi_max_request_body_size │
├────────┼─────────────────────────────┤
│DEFAULT │ max_request_body_size │
└────────┴─────────────────────────────┘
enable_proxy_headers_parsing
Type boolean
Default
False
Whether the application is behind a proxy or not. This determines if the middleware
should parse the headers or not.
http_basic_auth_user_file
Type string
Default
/etc/htpasswd
HTTP basic auth password file.
process
check_interval
Type integer
Default
5
Interval in seconds for checking a process.
restart_retries
Type integer
Default
3
Number of retries when the failure of restarting a process.
restart_interval
Type integer
Default
5
Interval in seconds for restarting a process.
api_retry_max
Type integer
Default
12
Number of retries for send a notification in processmonitor.
api_retry_interval
Type integer
Default
10
Interval between re-sending a notification in processmonitor(in seconds).
process_list_path
Type string
Default
/etc/masakarimonitors/process_list.yaml
The file path of process list.
MASAKARI MONITORS SAMPLE CONFIGURATION FILE
Configure Masakari Monitors by editing /etc/masakarimonitors/masakarimonitors.conf.
No config file is provided with the source code, it will be created during the
installation. In case where no configuration file was installed, one can be easily created
by running:
tox -e genconfig
To see configuration options available, please refer to Masakari Monitors Configuration
Options.
AUTHOR
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