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https://issues.apache.org/jira/browse/LOG4J2-3197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17449903#comment-17449903
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Ralph Goers edited comment on LOG4J2-3197 at 11/27/21, 6:25 PM:
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This is incredibly simple to implement. The configuration would look like:
{code:java}
<Appenders>
<Socket name=“JSON_TCP" host=“intake.logs.datadoghq.com" port=“10516"
protocol=“SSL" bufferedIo="true" ignoreExceptions="false”>
<PrefixSuffixLayout prefix=“${env:DD_API_KEY}”>
<JsonTemplateLayout includeLocation=“${includeLocation:-true}”
eventTemplateUri=“classpath:mytemplate.json”/>
</PrefixSuffixLayout>
</Socket>
</Appenders>
{code}
PrefixSuffixLayout would simply emit the prefix before calling the embedded
layout and then emit the suffix afterwards.
Alternately, this could be done by simply adding a new LayoutConverter to the
PatternLayout that would allow PatternLayout to wrap another Layout. I think I
actually like this solution better as it provides a huge range of capabilities.
This would end up looking like:
{code:java}
<Appenders>
<Socket name=“JSON_TCP" host=“intake.logs.datadoghq.com" port=“10516"
protocol=“SSL" bufferedIo="true" ignoreExceptions="false”>
<PatternLayout pattern=“${env:DD_API_KEY} %layout”>
<JsonTemplateLayout includeLocation=“${includeLocation:-true}”
eventTemplateUri=“classpath:mytemplate.json”/>
</PatternLayout>
</Socket>
</Appenders>
{code}
Note that this would require PatternLayout be modified to accept a Layout
parameter that the LayoutConverter could reference.
I will also say that I find both of these options a heck of a lot clearer than
what Datadog has documented for Logback.
was (Author: [email protected]):
This is incredibly simple to implement. The configuration would look like:
{code:java}
<Appenders>
<Socket name=“JSON_TCP" host=“intake.logs.datadoghq.com" port=“10516"
protocol=“SSL" bufferedIo="true" ignoreExceptions="false”>
<PrefixSuffixLayout prefix=“${env:DD_API_KEY}”>
<JsonTemplateLayout includeLocation=“${includeLocation:-true}”
eventTemplateUri=“classpath:mytemplate.json”/>
</PrefixSuffixLayout>
</Socket>
</Appenders>
{code}
PrefixSuffixLayout would simply emit the prefix before calling the embedded
layout and then emit the suffix afterwards.
Alternately, this could be done by simply adding a new LayoutConverter to the
PatternLayout that would allow PatternLayout to wrap another Layout. I think I
actually like this solution better as it provides a huge range of capabilities.
This would end up looking like:
{code:java}
<Appenders>
<Socket name=“JSON_TCP" host=“intake.logs.datadoghq.com" port=“10516"
protocol=“SSL" bufferedIo="true" ignoreExceptions="false”>
<PatternLayout pattern=“${env:DD_API_KEY} %layout”>
<JsonTemplateLayout includeLocation=“${includeLocation:-true}”
eventTemplateUri=“classpath:mytemplate.json”/>
</PatternLayout>
</Socket>
</Appenders>
{code}
Note that this would require PatternLayout be modified to accept a Layout
parameter that the LayoutConverter could reference.
> Support agentless logging to Datadog
> ------------------------------------
>
> Key: LOG4J2-3197
> URL: https://issues.apache.org/jira/browse/LOG4J2-3197
> Project: Log4j 2
> Issue Type: Improvement
> Components: Layouts
> Affects Versions: 2.14.1
> Reporter: Mikael Ståldal
> Assignee: Volkan Yazici
> Priority: Minor
>
> The documentation for Datadog contains information on how to setup Log4j 2 to
> send logs to Datadog. However, for the agentless configuration, it says its
> not possible with Log4j 2 and resorts to bridging to Logback:
> [https://docs.datadoghq.com/logs/log_collection/java/?tab=log4j2#agentless-logging]
>
> The problem is that the JSON formatted log events needs to be prefixed with
> an API key (outside of the JSON structure). This is possible with Logback,
> but supposedly not with Log4j 2.
> This configuration is arguably a bit strange, but it would be good if Log4j 2
> could support it, since it is likely a relevant use case.
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