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logstash: delete rotated log files at rollover #525

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Merged
afeefghannam89 merged 1 commit into from
Aug 10, 2026
Merged

logstash: delete rotated log files at rollover #525

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1 change: 1 addition & 0 deletions roles/logstash/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -127,6 +127,7 @@ Run only parts of the role with `--tags`:
| `logstash_logging_file` | `bool` | `true` | — | Log to the log file. Only effective when logstash_manage_logging is enabled. |
| `logstash_logging_slow_console` | `bool` | `true` | — | Log the slowlog to the console (syslog when run via systemd). Only effective when logstash_manage_logging is enabled. |
| `logstash_logging_slow_file` | `bool` | `true` | — | Log the slowlog to the log file. Only effective when logstash_manage_logging is enabled. |
| `logstash_logging_retention` | `str` | `"7D"` | — | Age at which rotated log files (plain, json, slowlog, deprecation and per-pipeline routing logs) are deleted by log4j2 at rollover time. Uses log4j2 IfLastModified duration syntax such as "7D", "24H" or "P30D". Only effective when logstash_manage_logging is enabled. |
| `logstash_ident` | `bool` | `true` | — | Add a field identifying the node that processed an event. |
| `logstash_ident_field_name` | `str` | `"[netways][instance]"` | — | Name of the field that identifies the instance. |
| `logstash_pipeline_identifier` | `bool` | `true` | — | Add a field identifying which pipeline processed an event. |
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1 change: 1 addition & 0 deletions roles/logstash/defaults/main.yml
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Expand Up @@ -87,6 +87,7 @@ logstash_logging_console: true
logstash_logging_file: true
logstash_logging_slow_console: true
logstash_logging_slow_file: true
logstash_logging_retention: 7D

logstash_ident: true
logstash_ident_field_name: "[netways][instance]"
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9 changes: 9 additions & 0 deletions roles/logstash/meta/argument_specs.yml
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Expand Up @@ -457,6 +457,15 @@ argument_specs:
default: true
description: Log the slowlog to the log file. Only effective when logstash_manage_logging is enabled.

logstash_logging_retention:
type: str
default: 7D
description: >-
Age at which rotated log files (plain, json, slowlog, deprecation and
per-pipeline routing logs) are deleted by log4j2 at rollover time.
Uses log4j2 IfLastModified duration syntax such as "7D", "24H" or
"P30D". Only effective when logstash_manage_logging is enabled.

# ----- Identifying fields -----
logstash_ident:
type: bool
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36 changes: 36 additions & 0 deletions roles/logstash/templates/log4j2.properties.j2
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Expand Up @@ -39,6 +39,12 @@ appender.rolling.policies.size.type = SizeBasedTriggeringPolicy
appender.rolling.policies.size.size = 100MB
appender.rolling.strategy.type = DefaultRolloverStrategy
appender.rolling.strategy.max = 30
appender.rolling.strategy.action.type = Delete
appender.rolling.strategy.action.basepath = ${sys:ls.logs}
appender.rolling.strategy.action.condition.type = IfFileName
appender.rolling.strategy.action.condition.glob = logstash-plain-*
appender.rolling.strategy.action.condition.nested_condition.type = IfLastModified
appender.rolling.strategy.action.condition.nested_condition.age = {{ logstash_logging_retention }}
appender.rolling.avoid_pipelined_filter.type = PipelineRoutingFilter

appender.json_rolling.type = RollingFile
Expand All @@ -56,6 +62,12 @@ appender.json_rolling.policies.size.type = SizeBasedTriggeringPolicy
appender.json_rolling.policies.size.size = 100MB
appender.json_rolling.strategy.type = DefaultRolloverStrategy
appender.json_rolling.strategy.max = 30
appender.json_rolling.strategy.action.type = Delete
appender.json_rolling.strategy.action.basepath = ${sys:ls.logs}
appender.json_rolling.strategy.action.condition.type = IfFileName
appender.json_rolling.strategy.action.condition.glob = logstash-json-*
appender.json_rolling.strategy.action.condition.nested_condition.type = IfLastModified
appender.json_rolling.strategy.action.condition.nested_condition.age = {{ logstash_logging_retention }}
appender.json_rolling.avoid_pipelined_filter.type = PipelineRoutingFilter

appender.routing.type = PipelineRouting
Expand All @@ -70,6 +82,12 @@ appender.routing.pipeline.policy.type = SizeBasedTriggeringPolicy
appender.routing.pipeline.policy.size = 100MB
appender.routing.pipeline.strategy.type = DefaultRolloverStrategy
appender.routing.pipeline.strategy.max = 30
appender.routing.pipeline.strategy.action.type = Delete
appender.routing.pipeline.strategy.action.basepath = ${sys:ls.logs}
appender.routing.pipeline.strategy.action.condition.type = IfFileName
appender.routing.pipeline.strategy.action.condition.glob = pipeline_${ctx:pipeline.id}*.log.gz
appender.routing.pipeline.strategy.action.condition.nested_condition.type = IfLastModified
appender.routing.pipeline.strategy.action.condition.nested_condition.age = {{ logstash_logging_retention }}

rootLogger.level = ${sys:ls.log.level}
{% if logstash_logging_console | bool %}
Expand Down Expand Up @@ -107,6 +125,12 @@ appender.rolling_slowlog.policies.size.type = SizeBasedTriggeringPolicy
appender.rolling_slowlog.policies.size.size = 100MB
appender.rolling_slowlog.strategy.type = DefaultRolloverStrategy
appender.rolling_slowlog.strategy.max = 30
appender.rolling_slowlog.strategy.action.type = Delete
appender.rolling_slowlog.strategy.action.basepath = ${sys:ls.logs}
appender.rolling_slowlog.strategy.action.condition.type = IfFileName
appender.rolling_slowlog.strategy.action.condition.glob = logstash-slowlog-plain-*
appender.rolling_slowlog.strategy.action.condition.nested_condition.type = IfLastModified
appender.rolling_slowlog.strategy.action.condition.nested_condition.age = {{ logstash_logging_retention }}

appender.json_rolling_slowlog.type = RollingFile
appender.json_rolling_slowlog.name = json_rolling_slowlog
Expand All @@ -123,6 +147,12 @@ appender.json_rolling_slowlog.policies.size.type = SizeBasedTriggeringPolicy
appender.json_rolling_slowlog.policies.size.size = 100MB
appender.json_rolling_slowlog.strategy.type = DefaultRolloverStrategy
appender.json_rolling_slowlog.strategy.max = 30
appender.json_rolling_slowlog.strategy.action.type = Delete
appender.json_rolling_slowlog.strategy.action.basepath = ${sys:ls.logs}
appender.json_rolling_slowlog.strategy.action.condition.type = IfFileName
appender.json_rolling_slowlog.strategy.action.condition.glob = logstash-slowlog-json-*
appender.json_rolling_slowlog.strategy.action.condition.nested_condition.type = IfLastModified
appender.json_rolling_slowlog.strategy.action.condition.nested_condition.age = {{ logstash_logging_retention }}

logger.slowlog.name = slowlog
logger.slowlog.level = trace
Expand Down Expand Up @@ -156,6 +186,12 @@ appender.deprecation_rolling.policies.size.type = SizeBasedTriggeringPolicy
appender.deprecation_rolling.policies.size.size = 100MB
appender.deprecation_rolling.strategy.type = DefaultRolloverStrategy
appender.deprecation_rolling.strategy.max = 30
appender.deprecation_rolling.strategy.action.type = Delete
appender.deprecation_rolling.strategy.action.basepath = ${sys:ls.logs}
appender.deprecation_rolling.strategy.action.condition.type = IfFileName
appender.deprecation_rolling.strategy.action.condition.glob = logstash-deprecation-*
appender.deprecation_rolling.strategy.action.condition.nested_condition.type = IfLastModified
appender.deprecation_rolling.strategy.action.condition.nested_condition.age = {{ logstash_logging_retention }}

logger.deprecation.name = org.logstash.deprecation, deprecation
logger.deprecation.level = WARN
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