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authorTitouan BION <titouan.bion@gmail.com>2021-02-13 23:25:18 +0100
committerJoffrey Bion <joffrey.bion@gmail.com>2021-02-13 23:40:10 +0100
commitf6a6f8f3e2ba41b44c2e9490b9dc2cc013fa2994 (patch)
tree0098dd46f883a0baca302e83484199b229d8afb6 /sw-server
parentRename 'application' label of Prometheus exported metrics to match a more Kub... (diff)
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Add Loki logback appender to push server logs to the free cloud hosted Loki instance provided by Grafana.com
Diffstat (limited to 'sw-server')
-rw-r--r--sw-server/build.gradle.kts3
-rw-r--r--sw-server/src/main/resources/logback.xml38
2 files changed, 40 insertions, 1 deletions
diff --git a/sw-server/build.gradle.kts b/sw-server/build.gradle.kts
index a129f952..445ae4d8 100644
--- a/sw-server/build.gradle.kts
+++ b/sw-server/build.gradle.kts
@@ -24,7 +24,8 @@ dependencies {
implementation("org.springframework.security:spring-security-messaging")
// logging
- implementation("ch.qos.logback:logback-classic:1.1.8")
+ implementation("ch.qos.logback:logback-classic:1.2.3")
+ implementation("com.github.loki4j:loki-logback-appender:1.0.0")
// monitoring / metrics
implementation("org.springframework.boot:spring-boot-starter-actuator")
diff --git a/sw-server/src/main/resources/logback.xml b/sw-server/src/main/resources/logback.xml
new file mode 100644
index 00000000..c87e740c
--- /dev/null
+++ b/sw-server/src/main/resources/logback.xml
@@ -0,0 +1,38 @@
+<configuration>
+ <include resource="org/springframework/boot/logging/logback/defaults.xml"/>
+ <include resource="org/springframework/boot/logging/logback/console-appender.xml"/>
+
+ <appender name="LOKI" class="com.github.loki4j.logback.InstrumentedLoki4jAppender">
+ <!--
+ Loki Cloud hosted solution is limiting the batch size to 65536 Bytes, our log lines are exceeding this
+ limit quite often so we are sending them with a granularity of 1 instead of the default 1000.
+ The library does not provide a `batchSize` expressed in Bytes yet, so we cannot set it smarter than that.
+ -->
+ <batchSize>1</batchSize>
+ <batchTimeoutMs>10000</batchTimeoutMs>
+ <http>
+ <url>https://logs-prod-us-central1.grafana.net/loki/api/v1/push</url>
+ <auth>
+ <username>${LOKI_USERNAME}</username>
+ <password>${LOKI_PASSWORD}</password>
+ </auth>
+ <requestTimeoutMs>15000</requestTimeoutMs>
+ </http>
+ <format>
+ <label>
+ <pattern>application=seven-wonders,instance=${HOSTNAME},level=%level,class=%logger</pattern>
+ </label>
+ <message>
+ <pattern>level=%level class=%logger thread=%thread | %msg %ex</pattern>
+ </message>
+ </format>
+ </appender>
+
+ <root level="DEBUG">
+ <appender-ref ref="CONSOLE"/>
+ </root>
+ <root level="INFO">
+ <appender-ref ref="LOKI"/>
+ </root>
+
+</configuration>
bgstack15