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Support configuration using environment variables (#5)
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@ -4,6 +4,11 @@ This changelog contains the changes made between releases. The versioning follow
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## Unreleased
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### Added
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- Support for battery and RF-link status
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- Support for configuration via environment variables
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## 1.1.0 (2018-09-02)
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### Added
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15
README.md
15
README.md
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@ -38,6 +38,18 @@ Usage of netatmo-exporter:
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After starting the server will offer the metrics on the `/metrics` endpoint, which can be used as a target for prometheus.
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### Passing secrets
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You can pass credentials either via command line arguments (see next section) or by populating the following environment variables:
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* `NETATMO_EXPORTER_ADDR` Address to listen on
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* `NETATMO_CLIENT_ID` Client ID for NetAtmo app
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* `NETATMO_CLIENT_SECRET` Client secret for NetAtmo app
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* `NETATMO_CLIENT_USERNAME` Username of NetAtmo account
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* `NETATMO_CLIENT_PASSWORD` Password of NetAtmo account
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### Scrape interval
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The exporter will query the Netatmo API every time it is scraped by prometheus. It does not make sense to scrape the Netatmo API with a small interval as the sensors only update their data every few minutes, so don't forget to set a slower scrape interval for this exporter:
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```yml
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@ -46,5 +58,4 @@ scrape_configs:
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scrape_interval: 90s
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static_configs:
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- targets: ['localhost:9210']
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```
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```
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18
main.go
18
main.go
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@ -4,6 +4,7 @@ import (
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"errors"
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"log"
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"net/http"
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"os"
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netatmo "github.com/exzz/netatmo-api-go"
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"github.com/prometheus/client_golang/prometheus"
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@ -17,11 +18,18 @@ type config struct {
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func parseConfig() (config, error) {
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cfg := config{}
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pflag.StringVarP(&cfg.Addr, "addr", "a", ":9210", "Address to listen on.")
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pflag.StringVarP(&cfg.Netatmo.ClientID, "client-id", "i", "", "Client ID for NetAtmo app.")
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pflag.StringVarP(&cfg.Netatmo.ClientSecret, "client-secret", "s", "", "Client secret for NetAtmo app.")
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pflag.StringVarP(&cfg.Netatmo.Username, "username", "u", "", "Username of NetAtmo account.")
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pflag.StringVarP(&cfg.Netatmo.Password, "password", "p", "", "Password of NetAtmo account.")
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// Set default port to bind to
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addr := ":9210"
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if envAddr := os.Getenv("NETATMO_EXPORTER_ADDR"); envAddr != "" {
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addr = envAddr
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}
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pflag.StringVarP(&cfg.Addr, "addr", "a", addr, "Address to listen on.")
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pflag.StringVarP(&cfg.Netatmo.ClientID, "client-id", "i", os.Getenv("NETATMO_CLIENT_ID"), "Client ID for NetAtmo app.")
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pflag.StringVarP(&cfg.Netatmo.ClientSecret, "client-secret", "s", os.Getenv("NETATMO_CLIENT_SECRET"), "Client secret for NetAtmo app.")
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pflag.StringVarP(&cfg.Netatmo.Username, "username", "u", os.Getenv("NETATMO_CLIENT_USERNAME"), "Username of NetAtmo account.")
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pflag.StringVarP(&cfg.Netatmo.Password, "password", "p", os.Getenv("NETATMO_CLIENT_PASSWORD"), "Password of NetAtmo account.")
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pflag.Parse()
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if len(cfg.Addr) == 0 {
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