alertmanager/cli/check_config.go

67 lines
1.6 KiB
Go

package cli
import (
"fmt"
"github.com/alecthomas/kingpin"
"github.com/prometheus/alertmanager/config"
"github.com/prometheus/alertmanager/template"
)
// TODO: This can just be a type that is []string, doesn't have to be a struct
type checkConfigCmd struct {
files []string
}
func configureCheckConfigCmd(app *kingpin.Application, longHelpText map[string]string) {
var (
c = &checkConfigCmd{}
checkCmd = app.Command("check-config", "Validate alertmanager config files")
)
checkCmd.Arg("check-files", "Files to be validated").ExistingFilesVar(&c.files)
checkCmd.Action(c.checkConfig)
longHelpText["check-config"] = `Validate alertmanager config files
Will validate the syntax and schema for alertmanager config file
and associated templates. Non existing templates will not trigger
errors`
}
func (c *checkConfigCmd) checkConfig(element *kingpin.ParseElement, ctx *kingpin.ParseContext) error {
return CheckConfig(c.files)
}
func CheckConfig(args []string) error {
failed := 0
for _, arg := range args {
fmt.Printf("Checking '%s'", arg)
config, _, err := config.LoadFile(arg)
if err != nil {
fmt.Printf(" FAILED: %s\n", err)
failed++
} else {
fmt.Printf(" SUCCESS\n")
}
if config != nil {
fmt.Printf("Found %d templates: ", len(config.Templates))
if len(config.Templates) > 0 {
_, err = template.FromGlobs(config.Templates...)
if err != nil {
fmt.Printf(" FAILED: %s\n", err)
failed++
} else {
fmt.Printf(" SUCCESS\n")
}
}
}
fmt.Printf("\n")
}
if failed > 0 {
return fmt.Errorf("failed to validate %d file(s)", failed)
}
return nil
}