79 lines
2.5 KiB
Go
79 lines
2.5 KiB
Go
package cli
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import (
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"fmt"
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"os"
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"github.com/prometheus/alertmanager/cli/format"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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// RootCmd represents the base command when called without any subcommands
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var RootCmd = &cobra.Command{
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Use: "amtool",
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Short: "Alertmanager CLI",
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Long: `View and modify the current Alertmanager state.
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[Config File]
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The alertmanger tool will read a config file from the --config cli argument, AMTOOL_CONFIG environment variable,
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$HOME/.amtool.yml or /etc/amtool.yml the options are as follows
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alertmanager.url
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Set a default alertmanager url for each request
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author
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Set a default author value for new silences. If this argument is not specified then the username will be used
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comment_required
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Require a comment on silence creation
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output
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Set a default output type. Options are (simple, extended, json)
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`,
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}
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// Execute adds all child commands to the root command sets flags appropriately.
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// This is called by main.main(). It only needs to happen once to the rootCmd.
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func Execute() {
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if err := RootCmd.Execute(); err != nil {
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os.Exit(1)
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}
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}
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func init() {
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cobra.OnInitialize(initConfig)
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RootCmd.PersistentFlags().String("config", "", "config file (default is $HOME/.amtool.yml)")
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viper.BindPFlag("config", RootCmd.PersistentFlags().Lookup("config"))
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RootCmd.PersistentFlags().String("alertmanager.url", "", "Alertmanager to talk to")
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viper.BindPFlag("alertmanager.url", RootCmd.PersistentFlags().Lookup("alertmanager.url"))
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RootCmd.PersistentFlags().StringP("output", "o", "simple", "Output formatter (simple, extended, json)")
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viper.BindPFlag("output", RootCmd.PersistentFlags().Lookup("output"))
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RootCmd.PersistentFlags().BoolP("verbose", "v", false, "Verbose running information")
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viper.BindPFlag("verbose", RootCmd.PersistentFlags().Lookup("verbose"))
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viper.SetDefault("date.format", format.DefaultDateFormat)
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}
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// initConfig reads in config file and ENV variables if set.
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func initConfig() {
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viper.SetConfigName(".amtool") // name of config file (without extension)
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viper.AddConfigPath("/etc")
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viper.AddConfigPath("$HOME")
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viper.SetEnvPrefix("AMTOOL")
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viper.AutomaticEnv() // read in environment variables that match
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// If a config file is found, read it in.
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cfgFile := viper.GetString("config")
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if cfgFile != "" { // enable ability to specify config file via flag
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viper.SetConfigFile(cfgFile)
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}
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err := viper.ReadInConfig()
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if err == nil {
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if viper.GetBool("verbose") {
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fmt.Fprintln(os.Stderr, "Using config file:", viper.ConfigFileUsed())
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}
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}
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}
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