Matthew Stobbs
a78f001a41
- Make ipv4 reservations in kea by directly writing to the database - uses same configuration file as database configuration under the heading reservationV4
89 lines
2.4 KiB
Go
89 lines
2.4 KiB
Go
/*
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Copyright © 2024 NAME HERE <EMAIL ADDRESS>
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*/
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package cmd
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import (
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"errors"
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"log/slog"
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"os"
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"git.staur.ca/stobbsm/kea-manage/ipv4/reservation"
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"git.staur.ca/stobbsm/kea-manage/lib/database"
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"git.staur.ca/stobbsm/kea-manage/lib/database/postgres"
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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: "kea-manage",
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Short: "Manage the isc-kea dhcp server",
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Long: `Manage the isc-kea dhcp server backend in database.`,
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Run: runMain,
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}
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// Execute adds all child commands to the root command and 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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err := rootCmd.Execute()
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if 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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// Here you will define your flags and configuration settings.
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// Cobra supports persistent flags, which, if defined here,
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// will be global for your application.
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// rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.kea-manage.yaml)")
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// Cobra also supports local flags, which will only run
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// when this action is called directly.
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rootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
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}
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// Manage kea dhcp host reservations in postgresql directly
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// postgresql schema used from [https://gitlab.isc.org/isc-projects/kea/-/wikis/docs/editing-host-reservations]
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// This will only work with hw-address identifiers. If I need support for more, I'll add it
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func runMain(cmd *cobra.Command, args []string) {
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reslist := []*reservation.ReservationV4{}
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vlist := viper.Get("reservationV4").([]any)
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for _, v := range vlist {
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v := v.(map[string]any)
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r := reservation.ReserveV4MacAddr(
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v["type"].(string),
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v["identifier"].(string),
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v["ipv4"].(string),
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v["hostname"].(string),
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v["subnetid"].(int),
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)
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reslist = append(
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reslist,
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r,
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)
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}
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slog.Debug("reslist", slog.Any("slice", reslist))
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dbconf := viper.GetStringMapString("database")
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pg := postgres.Open(dbconf["host"], dbconf["port"], dbconf["user"], dbconf["password"], dbconf["name"])
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for _, v := range reslist {
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v := v
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if err := pg.InsertResV4(v); err != nil {
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if errors.As(err, &database.Exists) {
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slog.Info("exists", slog.Any("reservation", *v))
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} else {
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slog.Error(err.Error())
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}
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continue
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}
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slog.Info("inserted", slog.Any("reservation", *v))
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}
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}
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