VictoriaMetrics/app/vmalert/notifier/init.go
Aliaksandr Valialkin d5dddb0953 all: use %w instead of %s for wrapping errors in fmt.Errorf
This will simplify examining the returned errors such as httpserver.ErrorWithStatusCode .
See https://blog.golang.org/go1.13-errors for details.
2020-06-30 23:05:11 +03:00

48 lines
2.2 KiB
Go

package notifier
import (
"flag"
"fmt"
"net/http"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/utils"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
)
var (
addrs = flagutil.NewArray("notifier.url", "Prometheus alertmanager URL. Required parameter. e.g. http://127.0.0.1:9093")
basicAuthUsername = flagutil.NewArray("notifier.basicAuth.username", "Optional basic auth username for -datasource.url")
basicAuthPassword = flagutil.NewArray("notifier.basicAuth.password", "Optional basic auth password for -datasource.url")
tlsInsecureSkipVerify = flag.Bool("notifier.tlsInsecureSkipVerify", false, "Whether to skip tls verification when connecting to -notifier.url")
tlsCertFile = flagutil.NewArray("notifier.tlsCertFile", "Optional path to client-side TLS certificate file to use when connecting to -notifier.url")
tlsKeyFile = flagutil.NewArray("notifier.tlsKeyFile", "Optional path to client-side TLS certificate key to use when connecting to -notifier.url")
tlsCAFile = flagutil.NewArray("notifier.tlsCAFile", "Optional path to TLS CA file to use for verifying connections to -notifier.url. "+
"By default system CA is used")
tlsServerName = flagutil.NewArray("notifier.tlsServerName", "Optional TLS server name to use for connections to -notifier.url. "+
"By default the server name from -notifier.url is used")
)
// Init creates a Notifier object based on provided flags.
func Init(gen AlertURLGenerator) ([]Notifier, error) {
if len(*addrs) == 0 {
flag.PrintDefaults()
return nil, fmt.Errorf("at least one `-notifier.url` must be set")
}
var notifiers []Notifier
for i, addr := range *addrs {
cert, key := tlsCertFile.GetOptionalArg(i), tlsKeyFile.GetOptionalArg(i)
ca, serverName := tlsCAFile.GetOptionalArg(i), tlsServerName.GetOptionalArg(i)
tr, err := utils.Transport(addr, cert, key, ca, serverName, *tlsInsecureSkipVerify)
if err != nil {
return nil, fmt.Errorf("failed to create transport: %w", err)
}
user, pass := basicAuthUsername.GetOptionalArg(i), basicAuthPassword.GetOptionalArg(i)
am := NewAlertManager(addr, user, pass, gen, &http.Client{Transport: tr})
notifiers = append(notifiers, am)
}
return notifiers, nil
}