tweaking, hardening

docker/elk/elasticsearch/Dockerfile

@@ -28,12 +28,12 @@ RUN apk -U upgrade && \
     chown -R elasticsearch:elasticsearch /usr/share/elasticsearch/ && \
 
 # Clean up
-    apk del wget && \
+    apk del --purge wget && \
     rm -rf /root/*
 
 # Healthcheck
 HEALTHCHECK --retries=10 CMD curl -s -XGET 'http://127.0.0.1:9200/_cat/health'
 
 # Start ELK
-USER elasticsearch
+USER elasticsearch:elasticsearch
 CMD ["/usr/share/elasticsearch/bin/elasticsearch"]

docker/elk/elasticsearch/docker-compose.yml

@@ -0,0 +1,30 @@
+# T-Pot (Standard)
+# For docker-compose ...
+version: '2.2'
+
+services:
+
+# ELK services
+## Elasticsearch service
+  elasticsearch:
+    build: .
+    container_name: elasticsearch
+    restart: always
+    environment:
+     - bootstrap.memory_lock=true
+     - "ES_JAVA_OPTS=-Xms1024m -Xmx1024m"
+    cap_add:
+     - IPC_LOCK
+    ulimits:
+      memlock:
+        soft: -1
+        hard: -1
+      nofile:
+        soft: 65536
+        hard: 65536
+    mem_limit: 2g
+    ports:
+     - "127.0.0.1:64298:9200"
+    image: "dtagdevsec/elasticsearch:1804"
+    volumes:
+     - /data:/data