docker-redis - local tests

Signed-off-by: Dave Richer <dave@imexsystems.ca>

redis/.gitignore

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+redis-cluster-init.lock
+dockerdata/

redis/Dockerfile

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+# Use the official Redis image
+FROM redis:7.0-alpine
+
+# Copy the Redis configuration file
+COPY redis.conf /usr/local/etc/redis/redis.conf
+
+# Copy the entrypoint script
+COPY entrypoint.sh /usr/local/bin/entrypoint.sh
+
+# Make the entrypoint script executable
+RUN chmod +x /usr/local/bin/entrypoint.sh
+
+# Debugging step: List contents of /usr/local/bin
+RUN ls -l /usr/local/bin
+
+# Expose Redis ports
+EXPOSE 6379 16379
+
+# Set the entrypoint
+ENTRYPOINT ["entrypoint.sh"]

redis/dockerdata/.gitignore

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+.gitkeep
+!.gitignore
+!.gitkeep

redis/entrypoint.sh

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+#!/bin/sh
+
+LOCK_FILE="redis-cluster-init.lock"
+
+# Start Redis server in the background
+redis-server /usr/local/etc/redis/redis.conf &
+
+# Wait for Redis server to start
+sleep 5
+
+# Initialize the cluster only if the lock file does not exist
+if [ ! -f "$LOCK_FILE" ]; then
+  echo "Initializing Redis Cluster..."
+
+  # Run the Redis cluster initialization
+  yes yes | redis-cli --cluster create \
+    redis-node-1:6379 \
+    redis-node-2:6379 \
+    redis-node-3:6379 \
+    --cluster-replicas 0
+
+  # Create the lock file after initialization
+  touch "$LOCK_FILE"
+  echo "Cluster initialization complete. Lock file created."
+else
+  echo "Cluster has already been initialized. Skipping initialization."
+fi
+
+# Keep the container running
+tail -f /dev/null

redis/redis.conf

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+bind 0.0.0.0
+port 6379
+cluster-enabled yes
+cluster-config-file nodes.conf
+cluster-node-timeout 5000
+appendonly yes