Experimental logback-spring setup for Loki and Grafana

build.gradle

@@ -45,6 +45,7 @@ ext {
     set('mapStructVersion', '1.5.5.Final')
     set('resilienceReactorVersion', '1.6.1')
     set('resilienceRateLimiterVersion', '1.6.1')
+    set('lokiLogbackAppenderVersion', '1.5.1')
 }
 
 jar {
@@ -69,6 +70,7 @@ dependencies {
     implementation "commons-codec:commons-codec:${commonsCodecVersion}"
     implementation "software.pando.crypto:salty-coffee:${pandoCryptoVersion}"
     implementation "org.apache.commons:commons-collections4:${apacheCollectionsVersion}"
+    implementation "com.github.loki4j:loki-logback-appender:${lokiLogbackAppenderVersion}"
     implementation 'org.springframework.boot:spring-boot-starter-actuator'
     compileOnly 'org.projectlombok:lombok'
     annotationProcessor 'org.projectlombok:lombok'

compose.yml

@@ -1,5 +1,6 @@
 services:
   riven-of-a-thousand-servers:
+    container_name: rivenbot
     image: ${DOCKER_IMAGE_NAME}
     env_file:
       - .env
@@ -20,11 +21,13 @@ services:
       - bungie_client_id
       - bungie_client_secret
   redis:
+    container_name: redis
     hostname: redis
     image: "redis:7.0.11"
     ports:
       - "6379:6379"
   mongodb:
+    container_name: mongodb
     hostname: mongo
     image: "mongo:7.0.3"
     ports:
@@ -36,6 +39,40 @@ services:
     secrets:
       - "mongo_username"
       - "mongo_password"
+  loki:
+    container_name: loki
+    image: grafana/loki:2.9.0
+    ports:
+      - "3100:3100"
+    command: -config.file=/etc/loki/local-config.yaml
+  grafana:
+    container_name: grafana
+    environment:
+      - GF_PATHS_PROVISIONING=/etc/grafana/provisioning
+      - GF_AUTH_ANONYMOUS_ENABLED=true
+      - GF_AUTH_ANONYMOUS_ORG_ROLE=Admin
+    entrypoint:
+      - sh
+      - -euc
+      - |
+        mkdir -p /etc/grafana/provisioning/datasources
+        cat <<EOF > /etc/grafana/provisioning/datasources/ds.yaml
+        apiVersion: 1
+        datasources:
+        - name: Loki
+          type: loki
+          access: proxy
+          orgId: 1
+          url: http://loki:3100
+          basicAuth: false
+          isDefault: true
+          version: 1
+          editable: false
+        EOF
+        /run.sh
+    image: grafana/grafana-oss:latest
+    ports:
+      - "3000:3000"
 
 secrets:
   mongo_username:

src/main/resources/logback-spring.xml

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+  <!--  local configuration -->
+  <springProfile name="local">
+    <configuration>
+      <appender name="LOKI" class="com.github.loki4j.logback.Loki4jAppender">
+        <http>
+          <url>http://localhost:3100/loki/api/v1/push</url>
+        </http>
+        <format>
+          <label>
+            <pattern>level=%level</pattern>
+            <readMarkers>true</readMarkers>
+          </label>
+          <message>
+            <pattern>%-5level [%.5(${HOSTNAME})] %.10thread %logger{20} | %msg %ex</pattern>
+          </message>
+        </format>
+      </appender>
+
+      <root level="INFO">
+        <appender-ref ref="LOKI"/>
+      </root>
+    </configuration>
+    <!--  prod configuration -->
+  </springProfile>
+  <springProfile name="prod">
+    <configuration>
+      <appender name="LOKI" class="com.github.loki4j.logback.Loki4jAppender">
+        <http>
+          <url>http://loki:3100/loki/api/v1/push</url>
+        </http>
+        <format>
+          <label>
+            <pattern>level=%level</pattern>
+            <readMarkers>true</readMarkers>
+          </label>
+          <message>
+            <pattern>%-5level [%.5(${HOSTNAME})] %.10thread %logger{20} | %msg %ex</pattern>
+          </message>
+        </format>
+      </appender>
+
+      <root level="INFO">
+        <appender-ref ref="LOKI"/>
+      </root>
+    </configuration>
+  </springProfile>
+</configuration>