Add sysinfo node for host CPU, memory, and IP monitoring#15
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A source node that periodically emits the host's CPU usage, memory (used/total/percent), and local IP — the runtime equivalent of an edge agent's "resources" topic, which sandboxed function nodes cannot read. Uses the sysinfo crate (system feature only) for CPU/memory; the local IP is resolved via a UDP-connect trick (no dependency, no packet sent). Verified live: emits real cpu/memory/ip.
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This pull request introduces a new
sysinfonode that periodically emits host CPU usage, memory statistics, and local IP address, making it easier to monitor system resources. The implementation includes configuration, documentation, and integration into the node catalog and runtime.New node: System Information
sysinfonode implementation insrc/runtime/nodes/sysinfo.rs, which emits snapshots of CPU usage, memory statistics, and the local IP address at a configurable interval.sysinfonode in the runtime node builder insrc/runtime/nodes/mod.rs, enabling it to be instantiated and used in flows. [1] [2]sysinfonode to the catalog insrc/catalog.rswith configuration for interval and descriptive metadata.Dependency updates
sysinfocrate (with only thesystemfeature enabled) toCargo.tomlfor lightweight, cross-platform system information gathering.Documentation
sysinfonode in bothREADME.mdandREADME.id.md, describing its purpose and output. [1] [2]A source node that periodically emits the host's CPU usage, memory (used/total/percent), and local IP — the runtime equivalent of an edge agent's "resources" topic, which sandboxed function nodes cannot read.Uses the sysinfo crate (system feature only) for CPU/memory; the local IP is resolved via a UDP-connect trick (no dependency, no packet sent). Verified live: emits real cpu/memory/ip.