mirror of
https://github.com/notherealmarco/coredns-deployment.git
synced 2025-03-14 14:16:16 +01:00
37f5d0dad4
* Initial commit for the corefile-tool cli for the migration tool * cleanup implementation * nit * add fn to get corefile path * add released command and improve readme
56 lines
2.1 KiB
Go
56 lines
2.1 KiB
Go
package cmd
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/coredns/deployment/kubernetes/migration"
|
|
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
// NewMigrateCmd represents the migrate command
|
|
func NewMigrateCmd() *cobra.Command {
|
|
var migrateCmd = &cobra.Command{
|
|
Use: "migrate",
|
|
Short: "Migrate your CoreDNS corefile",
|
|
Example: `# Migrate CoreDNS from v1.4.0 to v1.5.0 and handle deprecations .
|
|
corefile-tool migrate --from 1.4.0 --to 1.5.0 --corefile /path/to/Corefile --deprecations true
|
|
|
|
# Migrate CoreDNS from v1.2.2 to v1.3.1 and do not handle deprecations .
|
|
corefile-tool migrate --from 1.2.2 --to 1.3.1 --corefile /path/to/Corefile --deprecations false`,
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
from, _ := cmd.Flags().GetString("from")
|
|
to, _ := cmd.Flags().GetString("to")
|
|
corefile, _ := cmd.Flags().GetString("corefile")
|
|
deprecations, _ := cmd.Flags().GetBool("deprecations")
|
|
|
|
migrated, err := migrateCorefileFromPath(from, to, corefile, deprecations)
|
|
if err != nil {
|
|
return fmt.Errorf("error while migration: %v \n", err)
|
|
}
|
|
fmt.Println(migrated)
|
|
return nil
|
|
},
|
|
}
|
|
migrateCmd.Flags().String("from", "", "Required: The version you are migrating from. ")
|
|
migrateCmd.MarkFlagRequired("from")
|
|
migrateCmd.Flags().String("to", "", "Required: The version you are migrating to.")
|
|
migrateCmd.MarkFlagRequired("to")
|
|
migrateCmd.Flags().String("corefile", "", "Required: The path where your Corefile is located.")
|
|
migrateCmd.MarkFlagRequired("corefile")
|
|
migrateCmd.Flags().Bool("deprecations", false, "Required: Specify whether you want to handle plugin deprecations. [True | False] ")
|
|
migrateCmd.MarkFlagRequired("deprecations")
|
|
|
|
return migrateCmd
|
|
}
|
|
|
|
// migrateCorefileFromPath takes the path where the Corefile is located and returns the deprecated plugins or directives
|
|
// present in the Corefile.
|
|
func migrateCorefileFromPath(fromCoreDNSVersion, toCoreDNSVersion, corefilePath string, deprecations bool) (string, error) {
|
|
fileBytes, err := getCorefileFromPath(corefilePath)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
corefileStr := string(fileBytes)
|
|
return migration.Migrate(fromCoreDNSVersion, toCoreDNSVersion, corefileStr, deprecations)
|
|
}
|