puppet-filebeat
Table of Contents
Description
The filebeat
module installs and configures the filebeat log shipper maintained by elastic.
Setup
What filebeat affects
By default filebeat
adds a software repository to your system, and installs filebeat along
with required configurations.
Upgrading to Filebeat 7.x
To upgrade to Filebeat 7.x, simply set $filebeat::major_version
to 7
and $filebeat::package_ensure
to latest
(or whichever version of 7.x you want, just not present).
You'll also need to change instances of filebeat::prospector
to filebeat::input
when upgrading to version 4.x of
this module.
Setup Requirements
The filebeat
module depends on puppetlabs/stdlib
, and on
puppetlabs/apt
on Debian based systems.
Beginning with filebeat
filebeat
can be installed with puppet module install pcfens-filebeat
(or with r10k, librarian-puppet, etc.)
The only required parameter, other than which files to ship, is the outputs
parameter.
Usage
All of the default values in filebeat follow the upstream defaults (at the time of writing).
To ship files to elasticsearch:
class { 'filebeat':
outputs => {
'elasticsearch' => {
'hosts' => [
'http://localhost:9200',
'http://anotherserver:9200'
],
'loadbalance' => true,
'cas' => [
'/etc/pki/root/ca.pem',
],
},
},
}
To ship log files through logstash:
class { 'filebeat':
outputs => {
'logstash' => {
'hosts' => [
'localhost:5044',
'anotherserver:5044'
],
'loadbalance' => true,
},
},
}
Shipper and logging options can be configured the same way, and are documented on the elastic website.
Adding an Input
Inputs are processes that ship log files to elasticsearch or logstash. They can be defined as a hash added to the class declaration (also used for automatically creating input using hiera), or as their own defined resources.
At a minimum, the paths
parameter must be set to an array of files or blobs that should
be shipped. doc_type
is what logstash views as the type parameter if you'd like to
apply conditional filters.
filebeat::input { 'syslogs':
paths => [
'/var/log/auth.log',
'/var/log/syslog',
],
doc_type => 'syslog-beat',
}
Multiline Logs
Filebeat inputs can handle multiline log entries. The multiline
parameter accepts a hash containing pattern
, negate
, match
, max_lines
, and timeout
as documented in the filebeat configuration documentation.
JSON Logs
Filebeat inputs (versions >= 5.0) can natively decode JSON objects if they are stored one per line. The json
parameter accepts a hash containing message_key
, keys_under_root
, overwrite_keys
, and add_error_key
.
Depending on the version, expand_keys
, document_id
and ignore_decoding_error
may be supported as well.
See the filebeat configuration documentation for details.
Inputs in Hiera
Inputs can be defined in hiera using the inputs
parameter. By default, hiera will not merge
input declarations down the hiera hierarchy. That behavior can be changed by configuring the
lookup_options
flag.
inputs
can be a Hash that will follow all the parameters listed on this documentation or an
Array that will output as is to the input config file.
Usage on Windows
When installing on Windows, this module will download the windows version of Filebeat from
elastic to C:\Temp
by default. The directory
can be overridden using the tmp_dir
parameter. tmp_dir
is not managed by this module,
but is expected to exist as a directory that puppet can write to.
Processors
Filebeat 5.0 and greater includes a new libbeat feature for filtering and/or enhancing all exported data through processors before being sent to the configured output(s). They can be defined as a hash added to the class declaration (also used for automatically creating processors using hiera), or as their own defined resources.
To drop the offset and input_type fields from all events:
class {'filebeat':
processors => [
{
'drop_fields' => {
'fields' => ['input_type', 'offset'],
}
}
],
}
To drop all events that have the http response code equal to 200: input
class {'filebeat':
processors => [
{
'drop_event' => {
'when' => {'equals' => {'http.code' => 200}}
}
}
],
}
Now to combine these examples into a single definition:
class {'filebeat':
processors => [
{
'drop_fields' => {
'params' => {'fields' => ['input_type', 'offset']},
'priority' => 1,
}
},
{
'drop_event' => {
'when' => {'equals' => {'http.code' => 200}},
'priority' => 2,
}
}
],
}
For more information please review the documentation here.
Processors in Hiera
Processors can be declared in hiera using the processors
parameter. By default, hiera will not merge
processor declarations down the hiera hierarchy. That behavior can be changed by configuring the
lookup_options
flag.
Index Lifecycle Management
You can override the default filebeat ILM policy by specifying ilm.policy
hash in filebeat::setup
parameter:
filebeat::setup:
ilm.policy:
phases:
hot:
min_age: "0ms"
actions:
rollover:
max_size: "10gb"
max_age: "1d"
Reference
Public Classes
filebeat
Class: Installs and configures filebeat.
Parameters within filebeat
package_ensure
: [String] The ensure parameter for the filebeat package If set to absent, inputs and processors passed as parameters are ignored and everything managed by puppet will be removed. (default: present)manage_package
: [Boolean] Whether ot not to manage the installation of the package (default: true)manage_repo
: [Boolean] Whether or not the upstream (elastic) repo should be configured or not (default: true)major_version
: [Enum] The major version of Filebeat to install. Should be either'5'
or'6'
. The default value is'6'
, except for OpenBSD 6.3 and earlier, which has a default value of'5'
.service_ensure
: [String] The ensure parameter on the filebeat service (default: running)service_enable
: [String] The enable parameter on the filebeat service (default: true)param repo_priority
: [Integer] Repository priority. yum and apt supported (default: undef)service_provider
: [String] The provider parameter on the filebeat service (default: on RedHat based systems use redhat, otherwise undefined)spool_size
: [Integer] How large the spool should grow before being flushed to the network (default: 2048)idle_timeout
: [String] How often the spooler should be flushed even if spool size isn't reached (default: 5s)publish_async
: [Boolean] If set to true filebeat will publish while preparing the next batch of lines to transmit (default: false)config_file
: [String] Where the configuration file managed by this module should be placed. If you think you might want to use this, read the limitations first. Defaults to the location that filebeat expects for your operating system.config_dir
: [String] The directory where inputs should be defined (default: /etc/filebeat/conf.d)config_dir_mode
: [String] The permissions mode set on the configuration directory (default: 0755)config_dir_owner
: [String] The owner of the configuration directory (default: root). Linux only.config_dir_group
: [String] The group of the configuration directory (default: root). Linux only.config_file_mode
: [String] The permissions mode set on configuration files (default: 0644)config_file_owner
: [String] The owner of the configuration files, including inputs (default: root). Linux only.config_file_group
: [String] The group of the configuration files, including inputs (default: root). Linux only.purge_conf_dir
: [Boolean] Should files in the input configuration directory not managed by puppet be automatically purgedenable_conf_modules
: [Boolean] Should filebeat.config.modules be enabledmodules_dir
: [String] The directory where module configurations should be defined (default: /etc/filebeat/modules.d)cloud
: [Hash] Will be converted to YAML for the optional cloud.id and cloud.auth of the configuration (see documentation, and above)features
: [Hash] Will be converted to YAML for the optional features section of the configuration (see documentation, and above)queue
: [Hash] Will be converted to YAML for the optional queue.mem and queue.disk of the configuration (see documentation, and above)outputs
: [Hash] Will be converted to YAML for the required outputs section of the configuration (see documentation, and above)shipper
: [Hash] Will be converted to YAML to create the optional shipper section of the filebeat config (see documentation)autodiscover
: [Hash] Will be converted to YAML for the optional autodiscover section of the configuration (see documentation, and above)`logging
: [Hash] Will be converted to YAML to create the optional logging section of the filebeat config (see documentation)systemd_beat_log_opts_override
: [String] Will overide the defaultBEAT_LOG_OPTS=-e
. Required if usinglogging
hash on systems running with systemd. required: Puppet 6.1+, Filebeat 7+,modules
: [Array] Will be converted to YAML to create the optional modules section of the filebeat config (see documentation)conf_template
: [String] The configuration template to use to generate the main filebeat.yml config file.download_url
: [String] The URL of the zip file that should be downloaded to install filebeat (windows only)install_dir
: [String] Where filebeat should be installed (windows only)tmp_dir
: [String] Where filebeat should be temporarily downloaded to so it can be installed (windows only)shutdown_timeout
: [String] How long filebeat waits on shutdown for the publisher to finish sending eventsbeat_name
: [String] The name of the beat shipper (default: FQDN)tags
: [Array] A list of tags that will be included with each published transactionmax_procs
: [Number] The maximum number of CPUs that can be simultaneously usedfields
: [Hash] Optional fields that should be added to each event outputfields_under_root
: [Boolean] If set to true, custom fields are stored in the top level instead of under fieldsdisable_config_test
: [Boolean] If set to true, configuration tests won't be run on config files before writing them.processors
: [Array] Processors that should be configured.monitoring
: [Hash] The monitoring.* components of the filebeat configuration.inputs
: [Hash] or [Array] Inputs that will be created. Commonly used to create inputs using hierasetup
: [Hash] Setup that will be created. Commonly used to create setup using hieraxpack
: [Hash] XPack configuration to pass to filebeatextra_validate_options
: [String] Extra command line options to pass to the configuration validation command.overwrite_pipelines
: [Boolean] If set to true, filebeat will overwrite existing pipelines.
Private Classes
filebeat::config
Class: Creates the configuration files required for filebeat (but not the inputs)
filebeat::install
Class: Calls the correct installer class based on the kernel fact.
filebeat::params
Class: Sets default parameters for filebeat
based on the OS and other facts.
filebeat::repo
Class: Installs the yum or apt repository for the system package manager to install filebeat.
filebeat::service
Class: Configures and manages the filebeat service.
filebeat::install::linux
Class: Install the filebeat package on Linux kernels.
filebeat::install::windows
Class: Downloads, extracts, and installs the filebeat zip file in Windows.
Public Defines
filebeat::input
Define: Installs a configuration file for a input.
Be sure to read the filebeat configuration details to fully understand what these parameters do.
Parameters for filebeat::input
ensure
: The ensure parameter on the input configuration file. (default: present)paths
: [Array] The paths, or blobs that should be handled by the input. (required if input_type is log)containers_ids
: [Array] If input_type is docker, the list of Docker container ids to read the logs from. (default: '*')containers_path
: [String] If input_type is docker, the path from where the logs should be read from. (default: /var/log/docker/containers)containers_stream
: [String] If input_type is docker, read from the specified stream only. (default: all)combine_partial
: [Boolean] If input_type is docker, enable partial messages joining. (default: false)cri_parse_flags
: [Boolean] If input_type is docker, enable CRI flags parsing from the log file. (default: false)syslog_protocol
: [Enum tcp,udp] Syslog protocol (default: udp)syslog_host
: [String] Host to listen for syslog messages (default: localhost:5140)exclude_files
: [Array] Files that match any regex in the list are excluded from filebeat (default: [])encoding
: [String] The file encoding. (default: plain)input_type
: [String] where filebeat reads the log from (default: filestream)take_over
: [Boolean] Optionally enabletake_over
when switchting from the deprecated input typelog
to the new input typefilestream
. This avoids re-ingesting already logfiles Filebeat already read when switching tofilestream
. This feature requires Filebeat 8.x.fields
: [Hash] Optional fields to add information to the output (default: {})fields_under_root
: [Boolean] Should thefields
parameter fields be stored at the top level of indexed documents.ignore_older
: [String] Files older than this field will be ignored by filebeat (default: ignore nothing)close_older
: [String] Files that haven't been modified sinceclose_older
, they'll be closed. New modifications will be read when files are scanned again according toscan_frequency
. (default: 1h)log_type
: [String] (Deprecated - usedoc_type
) The document_type setting (optional - default: log)doc_type
: [String] The event type to used for published lines, used as type field in logstash and elasticsearch (optional - default: log)scan_frequency
: [String] How often should the input check for new files (default: 10s)harvester_buffer_size
: [Integer] The buffer size the harvester uses when fetching the file (default: 16384)tail_files
: [Boolean] If true, filebeat starts reading new files at the end instead of the beginning (default: false)backoff
: [String] How long filebeat should wait between scanning a file after reaching EOF (default: 1s)max_backoff
: [String] The maximum wait time to scan a file for new lines to ship (default: 10s)backoff_factor
: [Integer]backoff
is multiplied by this parameter untilmax_backoff
is reached to determine the actual backoff (default: 2)force_close_files
: [Boolean] Should filebeat forcibly close a file when renamed (default: false)pipeline
: [String] Filebeat can be configured for a different ingest pipeline for each input (default: undef)include_lines
: [Array] A list of regular expressions to match the lines that you want to include. Ignored if empty (default: [])exclude_lines
: [Array] A list of regular expressions to match the files that you want to exclude. Ignored if empty (default: [])max_bytes
: [Integer] The maximum number of bytes that a single log message can have (default: 10485760)tags
: [Array] A list of tags to send along with the log data.json
: [Hash] Options that control how filebeat handles decoding of log messages in JSON format See above. (default: {})multiline
: [Hash] Options that control how Filebeat handles log messages that span multiple lines. See above. (default: {})host
: [String] Host and port used to read events for TCP or UDP plugin (default: localhost:9000)max_message_size
: [String] The maximum size of the message received over TCP or UDP (default: undef)keep_null
: [Boolean] If this option is set to true, fields with null values will be published in the output document (default: undef)include_matches
: [Array] Journald input only, A collection of filter expressions used to match fields. The format of the expression is field=value (default: [])seek
: [Enum] Journald input only, The position to start reading the journal from (default: undef)index
: [String] If present, this formatted string overrides the index for events from this input (for elasticsearch outputs), or sets the raw_index field of the event’s metadata (for other outputs) (default: undef)publisher_pipeline_disable_host
: [Boolean] This disables the "host.name" attribute being added to events. See filebeat input configuration reference (default: false)
Limitations
This module doesn't load the elasticsearch index template into elasticsearch (required when shipping directly to elasticsearch).
When installing on Windows, there's an expectation that C:\Temp
already exists, or an alternative
location specified in the tmp_dir
parameter exists and is writable by puppet. The temp directory
is used to store the downloaded installer only.
Generic template
By default, a generic, open ended template is used that simply converts your configuration into
a hash that is produced as YAML on the system. To use a template that is more strict, but possibly
incomplete, set conf_template
to filebeat/filebeat.yml.erb
.
Debian Systems
Filebeat 5.x and newer requires apt-transport-https, but this module won't install it for you.
Using config_file
There are a few very specific use cases where you don't want this module to directly manage the filebeat
configuration file, but you still want the configuration file on the system at a different location.
Setting config_file
will write the filebeat configuration file to an alternate location, but it will not
update the init script. If you don't also manage the correct file (/etc/filebeat/filebeat.yml on Linux,
C:/Program Files/Filebeat/filebeat.yml on Windows) then filebeat won't be able to start.
If you're copying the alternate config file location into the real location you'll need to include some metaparameters like
file { '/etc/filebeat/filebeat.yml':
ensure => file,
source => 'file:///etc/filebeat/filebeat.special',
require => File['filebeat.yml'],
notify => Service['filebeat'],
}
to ensure that services are managed like you might expect.
Logging on systems with Systemd and with version filebeat 7.0+ installed
With filebeat version 7+ running on systems with systemd, the filebeat systemd service file contains a default that will ignore the logging hash parameter
Environment="BEAT_LOG_OPTS=-e`
to overide this default, you will need to set the systemd_beat_log_opts_override parameter to empty string
example:
class {'filebeat':
logging => {
'level' => 'debug',
'to_syslog' => false,
'to_files' => true,
'files' => {
'path' => '/var/log/filebeat',
'name' => 'filebeat',
'keepfiles' => '7',
'permissions' => '0644'
},
systemd_beat_log_opts_override => "",
}
this will only work on systems with puppet version 6.1+. On systems with puppet version < 6.1 you will need to systemctl daemon-reload
. This can be achived by using the camptocamp-systemd
include systemd::systemctl::daemon_reload
class {'filebeat':
logging => {
...
},
systemd_beat_log_opts_override => "",
notify => Class['systemd::systemctl::daemon_reload'],
}
Development
Pull requests and bug reports are welcome. If you're sending a pull request, please consider writing tests if applicable.