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roles/docker-graylog/files/docker-compose.yml

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+version: '2'
+services:
+  # MongoDB: https://hub.docker.com/_/mongo/
+  mongodb:
+    image: mongo:3
+  # Elasticsearch: https://www.elastic.co/guide/en/elasticsearch/reference/6.x/docker.html
+  elasticsearch:
+    image: docker.elastic.co/elasticsearch/elasticsearch-oss:6.5.4
+    environment:
+      - http.host=172.16.0.20
+      - transport.host=localhost
+      - network.host=0.0.0.0
+      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
+    ulimits:
+      memlock:
+        soft: -1
+        hard: -1
+    mem_limit: 1g
+  # Graylog: https://hub.docker.com/r/graylog/graylog/
+  graylog:
+    image: graylog/graylog:2.5.1
+    environment:
+      # CHANGE ME!
+      - GRAYLOG_PASSWORD_SECRET=somepasswordpepper
+      # Password: admin
+      - GRAYLOG_ROOT_PASSWORD_SHA2=8c6976e5b5410415bde908bd4dee15dfb167a9c873fc4bb8a81f6f2ab448a918
+      - GRAYLOG_WEB_ENDPOINT_URI=http://127.0.0.1:9000/api
+    links:
+      - mongodb:mongo
+      - elasticsearch
+    depends_on:
+      - mongodb
+      - elasticsearch
+    ports:
+      # Graylog web interface and REST API
+      - 9000:9000
+      # Syslog TCP
+      - 515:514
+      # Syslog UDP
+      - 515:514/udp
+      # GELF TCP
+      - 12201:12201
+      # GELF UDP
+      - 12201:12201/udp