start master, volume servers, filer

Current Status
✅ Master: Healthy and running (port 9333)
✅ Filer: Healthy and running (port 8888)
✅ Volume Servers: All 6 servers running (ports 8080-8085)
🔄 Admin/Workers: Will start when dependencies are ready

docker/admin_integration/Dockerfile.monitor

@@ -0,0 +1,48 @@
+FROM golang:1.24-alpine AS builder
+
+# Install dependencies
+RUN apk add --no-cache git build-base
+
+# Set working directory
+WORKDIR /app
+
+# Copy and create monitor
+COPY ./docker/admin_integration/monitor.go .
+COPY go.mod go.sum ./
+RUN go mod download
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o monitor monitor.go
+
+# Final stage
+FROM alpine:latest
+
+# Install dependencies
+RUN apk --no-cache add curl ca-certificates jq
+
+WORKDIR /root/
+
+# Copy the binary
+COPY --from=builder /app/monitor .
+
+# Copy monitor scripts
+COPY ./docker/admin_integration/monitor-entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+# Create monitoring directories
+RUN mkdir -p /monitor-data /logs
+
+# Expose monitor port
+EXPOSE 9999
+
+# Set environment variables
+ENV MASTER_ADDRESS="master:9333"
+ENV ADMIN_ADDRESS="admin:9900"
+ENV FILER_ADDRESS="filer:8888"
+ENV MONITOR_INTERVAL="10s"
+ENV LOG_LEVEL="info"
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=5s --start-period=30s --retries=3 \
+  CMD curl -f http://localhost:9999/health || exit 1
+
+# Start monitor
+ENTRYPOINT ["/entrypoint.sh"]