https://chantico-300062.ci.tno.nl/api/chantico/internal/physicalmeasurement/index.html package physicalmeasurement import "chantico/internal/physicalmeasurement" Index ConstantsVariablesfunc DeleteTargetFile(ctx context.Context, physicalMeasurement *chantico.PhysicalMeasurement) *sm.ActionResult func UpdateState(physicalMeasurement *chantico.PhysicalMeasurement) func WriteFileSDTargets(path string, targets []FileSDTarget) error func WriteTargetFile(ctx context.Context, physicalMeasurement *chantico.PhysicalMeasurement) *sm.ActionResult type FileSDTarget func CreateFileSDTarget(deviceId string, ip string) FileSDTarget func LoadFileSDTargets(path string) ([]FileSDTarget, error) type State Constants const ( StateInit = "init" StateRunning = "Running" StateRunningWithWarning = "Running (with warning)" StateDelete = "Delete" StateFailed = "Failed" ) Variables var StateMachine = sm.Machine[*chantico.PhysicalMeasurement]{ Actions: map[string][]sm.ActionFunction[*chantico.PhysicalMeasurement]{ StateInit: { {Type: sm.ActionFunctionPure, Pure: sm.InitializeFinalizer[*chantico.PhysicalMeasurement]}, {Type: sm.ActionFunctionPure, Pure: WriteTargetFile}, }, StateRunning: {}, StateDelete: { {Type: sm.ActionFunctionPure, Pure: DeleteTargetFile}, {Type: sm.ActionFunctionPure, Pure: sm.RemoveFinalizer[*chantico.PhysicalMeasurement]}, }, StateFailed: {}, }, FailState: StateFailed, } ActionMap defines the actions to execute for each state. With file_sd_configs, Prometheus automatically watches the target files for changes — no explicit reload or config merging is needed. Functions func DeleteTargetFile func DeleteTargetFile( ctx context.Context, physicalMeasurement *chantico.PhysicalMeasurement, ) *sm.ActionResult DeleteTargetFile removes the file_sd_configs target file for this PhysicalMeasurement. Prometheus will automatically stop scraping the removed targets. func UpdateState func UpdateState( physicalMeasurement *chantico.PhysicalMeasurement, ) func WriteFileSDTargets func WriteFileSDTargets(path string, targets []FileSDTarget) error WriteFileSDTargets marshals the targets to JSON and writes them to the given path. func WriteTargetFile func WriteTargetFile( ctx context.Context, physicalMeasurement *chantico.PhysicalMeasurement, ) *sm.ActionResult WriteTargetFile writes a file_sd_configs JSON target file for this PhysicalMeasurement. The file is written to prometheus/targets/<name>.json. Prometheus automatically detects changes to these files and updates its scrape targets. Types type FileSDTarget type FileSDTarget struct { Targets []string `json:"targets"` Labels map[string]string `json:"labels"` } FileSDTarget represents a single target group in Prometheus file_sd_configs format. Prometheus watches these JSON files and automatically picks up changes without needing a reload or restart. See: https://prometheus.io/docs/prometheus/latest/configuration/configuration/#file_sd_config func CreateFileSDTarget func CreateFileSDTarget(deviceId string, ip string) FileSDTarget CreateFileSDTarget creates a file_sd_configs target entry for a PhysicalMeasurement. The labels __param_module and __param_auth are used by the SNMP exporter relabel configs in prometheus.yml to route scrapes through the correct SNMP module. func LoadFileSDTargets func LoadFileSDTargets(path string) ([]FileSDTarget, error) LoadFileSDTargets reads and parses a file_sd_configs JSON file. type State type State string Hugo en-us Copyright 2025-2026 TNO. Chantico is licensed under the <a href="https://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>. Published documentation is available under <a href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">CC-BY-SA 4.0</a>.