ssl_exporter/prober/prober.go

package prober

import (
	"context"

	"github.com/prometheus/client_golang/prometheus"
	"github.com/ribbybibby/ssl_exporter/config"
)

var (
	// Probers maps a friendly name to a corresponding probe function
	Probers = map[string]ProbeFn{
		"https": ProbeHTTPS,
		"http":  ProbeHTTPS,
		"tcp":   ProbeTCP,
		"file":  ProbeFile,
	}
)

// ProbeFn probes
type ProbeFn func(ctx context.Context, target string, module config.Module, registry *prometheus.Registry) error
Move to a modules/probers model, like the blackbox_exporter. (#34) There are a number of reasons for this change: - Modules allow a single instance of the exporter to be configured with numerous different tls configs. Previously you had to run a different exporter for each combination. - Adding new and more complicated options to the exporter should be easier with modules than if I was to go down the route of accepting configuration directly through url params - I prefer defining a specific prober (https,tcp) over using the URL to guess what the user wants 2020-06-17 16:29:21 +01:00			`package prober`

			`import (`
Add file prober 2020-11-09 12:57:28 +00:00			`"context"`
Move to a modules/probers model, like the blackbox_exporter. (#34) There are a number of reasons for this change: - Modules allow a single instance of the exporter to be configured with numerous different tls configs. Previously you had to run a different exporter for each combination. - Adding new and more complicated options to the exporter should be easier with modules than if I was to go down the route of accepting configuration directly through url params - I prefer defining a specific prober (https,tcp) over using the URL to guess what the user wants 2020-06-17 16:29:21 +01:00
Refactor prober function and metrics collection The existing implementation consists of a collector that exports information from a tls.ConnectionState returned by the prober function. This won't necessarily integrate well with additional probers that retrieve certs from sources other than a tls handshake (from file, for instance). I've made the probing more generically expandable by removing the collector and instead registering and collecting metrics inside the prober. This makes it possible to collect the same metrics in a different way, or collect different metrics depending on the prober. 2020-11-07 17:17:06 +00:00			`"github.com/prometheus/client_golang/prometheus"`
Move to a modules/probers model, like the blackbox_exporter. (#34) There are a number of reasons for this change: - Modules allow a single instance of the exporter to be configured with numerous different tls configs. Previously you had to run a different exporter for each combination. - Adding new and more complicated options to the exporter should be easier with modules than if I was to go down the route of accepting configuration directly through url params - I prefer defining a specific prober (https,tcp) over using the URL to guess what the user wants 2020-06-17 16:29:21 +01:00			`"github.com/ribbybibby/ssl_exporter/config"`
			`)`

			`var (`
			`// Probers maps a friendly name to a corresponding probe function`
			`Probers = map[string]ProbeFn{`
			`"https": ProbeHTTPS,`
			`"http": ProbeHTTPS,`
			`"tcp": ProbeTCP,`
Add file prober 2020-11-09 12:57:28 +00:00			`"file": ProbeFile,`
Move to a modules/probers model, like the blackbox_exporter. (#34) There are a number of reasons for this change: - Modules allow a single instance of the exporter to be configured with numerous different tls configs. Previously you had to run a different exporter for each combination. - Adding new and more complicated options to the exporter should be easier with modules than if I was to go down the route of accepting configuration directly through url params - I prefer defining a specific prober (https,tcp) over using the URL to guess what the user wants 2020-06-17 16:29:21 +01:00			`}`
			`)`

			`// ProbeFn probes`
Add file prober 2020-11-09 12:57:28 +00:00			`type ProbeFn func(ctx context.Context, target string, module config.Module, registry *prometheus.Registry) error`