Initial commit for Elasticsearch OCI

Dockerfile

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+FROM elasticsearch:8.11.3
+
+# 1. Switch to Root for installation
+USER root
+
+# 2. Install Network Tools (Debian based)
+RUN apt-get update && apt-get install -y \
+    ifupdown \
+    iproute2 \
+    iputils-ping \
+    nano \
+    && rm -rf /var/lib/apt/lists/*
+
+# 3. Add Script
+COPY start_network.sh /start_network.sh
+RUN chmod +x /start_network.sh
+
+# 4. Set Environment for Single Node (Easier for Homelab)
+ENV discovery.type=single-node
+ENV xpack.security.enabled=false
+
+ENTRYPOINT ["/start_network.sh"]

start_network.sh

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+#!/bin/bash
+
+# --- CONFIGURATION ---
+IP=${STATIC_IP:-"192.168.0.118/24"}
+GW=${STATIC_GW:-"192.168.0.1"}
+DNS=${STATIC_DNS:-"192.168.0.113"}
+
+echo "--- Elasticsearch Network Init ---"
+echo "Using IP: $IP"
+
+# 1. Generate Network Config (Debian/Ubuntu Syntax)
+cat <<EOF > /etc/network/interfaces
+auto lo
+iface lo inet loopback
+
+auto eth0
+iface eth0 inet static
+    address $IP
+    gateway $GW
+EOF
+
+# 2. Set DNS
+echo "nameserver $DNS" > /etc/resolv.conf
+
+# 3. Start Network
+sleep 5
+ifup eth0
+
+# 4. Fix Permissions (in case volumes were mounted by root)
+chown -R elasticsearch:elasticsearch /usr/share/elasticsearch/data
+chown -R elasticsearch:elasticsearch /usr/share/elasticsearch/logs
+
+# 5. Launch Elasticsearch as the correct user
+echo "--- Starting Elasticsearch ---"
+# We use 'runuser' to drop privileges from root -> elasticsearch
+exec runuser -u elasticsearch -- /usr/local/bin/docker-entrypoint.sh "$@"