feat: GCP Compute Engine Dashboard

gcp/compute-engine/README.md

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+# GCP Compute Engine Dashboard - OTLP
+
+## Data Ingestion
+
+### Integrate GCP Compute Engine with OpenTelemetry Collector
+
+Follow the instructions on the SigNoz's GCP Compute Engine Metrics [page](https://signoz.io/docs/gcp-monitoring/compute-engine/metrics/) about integrating OpenTelemetry with GCP Compute Engine to fetch metrics.
+
+## Dashboard panels
+
+## Variables
+
+- `{{deployment.environment}}`: The deployment environment for the service.
+- `{{project_id}}`: GCP Project ID.
+
+### Sections
+
+- Instances
+  - Total Active GCE Instances - `compute_googleapis_com_instance_uptime_total`
+  - GCE Instances Running by Zone - `compute_googleapis_com_instance_uptime_total`
+  - Instance Uptime - `compute_googleapis_com_instance_uptime_total`
+  - Screenshot of Instances Metrics Section - ![Instances Metrics Screenshot](assets/instances_metrics.png)
+- CPU Metrics
+  - CPU Usage Time - `compute_googleapis_com_instance_cpu_usage_time`
+  - CPU Utilization - `compute_googleapis_com_instance_cpu_utilization`
+  - Screenshot of CPU Metrics Section - ![CPU Metrics Screenshot](assets/cpu_metrics.png)
+- Memory Metrics
+  - Memory Used - `compute_googleapis_com_instance_memory_balloon_ram_used` and `compute_googleapis_com_instance_memory_balloon_ram_size`
+  - Free Memory - `compute_googleapis_com_instance_memory_balloon_ram_used` and `compute_googleapis_com_instance_memory_balloon_ram_size`
+  - Screeenshot of Memory Metrics Section - ![Memory Metrics Screenshot](assets/memory_metrics.png)
+- Disk Metrics
+  - Read I/O - `compute_googleapis_com_instance_disk_read_ops_count`
+  - Write I/O - `compute_googleapis_com_instance_disk_write_ops_count`
+  - Screenshot of Disk Metrics Section - ![Disk Metrics Screenshot](assets/disk_metrics.png)
+- Network Metrics
+  - Incoming I/O - `compute_googleapis_com_instance_network_received_bytes_count`
+  - Outgoing I/O - `compute_googleapis_com_instance_network_sent_bytes_count`
+  - Screenshot of Network Metrics Section - ![Network Metrics Screenshot](assets/network_metrics.png)
+- Firewall Metrics
+  - Dropped Bytes - `compute_googleapis_com_firewall_dropped_bytes_count`
+  - Dropped Packets - `compute_googleapis_com_firewall_dropped_packets_count`
+  - Screenshot of Firewall Metrics Section - ![Firewall Metrics Screenshot](assets/firewall_metrics.png)