constellation/cli/cmd/create_gcp.go
2022-03-30 18:30:34 +02:00

133 lines
3.8 KiB
Go

package cmd
import (
"context"
"fmt"
"strconv"
"strings"
"github.com/edgelesssys/constellation/cli/file"
"github.com/edgelesssys/constellation/cli/gcp"
"github.com/edgelesssys/constellation/cli/gcp/client"
"github.com/edgelesssys/constellation/internal/config"
"github.com/spf13/afero"
"github.com/spf13/cobra"
)
func newCreateGCPCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "gcp",
Short: "Create a Constellation of NUMBER nodes of SIZE on Google Cloud Platform.",
Long: "Create a Constellation of NUMBER nodes of SIZE on Google Cloud Platform.",
Args: cobra.MatchAll(
cobra.ExactArgs(2),
isIntGreaterArg(0, 1),
isGCPInstanceType(1),
),
ValidArgsFunction: createGCPCompletion,
RunE: runCreateGCP,
}
return cmd
}
// runCreateGCP runs the create command.
func runCreateGCP(cmd *cobra.Command, args []string) error {
count, _ := strconv.Atoi(args[0]) // err already checked in args validation
size := strings.ToLower(args[1])
project := "constellation-331613" // TODO: This will be user input
zone := "europe-west3-b" // TODO: This will be user input
region := "europe-west3" // TODO: This will be user input
name, err := cmd.Flags().GetString("name")
if err != nil {
return err
}
if len(name) > constellationNameLength {
return fmt.Errorf("name for constellation too long, maximum length is %d got %d: %s", constellationNameLength, len(name), name)
}
client, err := client.NewInitialized(cmd.Context(), project, zone, region, name)
if err != nil {
return err
}
devConfigName, err := cmd.Flags().GetString("dev-config")
if err != nil {
return err
}
fileHandler := file.NewHandler(afero.NewOsFs())
config, err := config.FromFile(fileHandler, devConfigName)
if err != nil {
return err
}
return createGCP(cmd, client, fileHandler, config, size, count)
}
func createGCP(cmd *cobra.Command, cl gcpclient, fileHandler file.Handler, config *config.Config, size string, count int) (retErr error) {
if err := checkDirClean(fileHandler, config); err != nil {
return err
}
createInput := client.CreateInstancesInput{
Count: count,
ImageId: *config.Provider.GCP.Image,
InstanceType: size,
KubeEnv: gcp.KubeEnv,
DisableCVM: *config.Provider.GCP.DisableCVM,
}
ok, err := cmd.Flags().GetBool("yes")
if err != nil {
return err
}
if !ok {
// Ask user to confirm action.
cmd.Printf("The following Constellation will be created:\n")
cmd.Printf("%d nodes of size %s will be created.\n", count, size)
ok, err := askToConfirm(cmd, "Do you want to create this Constellation?")
if err != nil {
return err
}
if !ok {
cmd.Println("The creation of the Constellation was aborted.")
return nil
}
}
// Create all gcp resources
defer rollbackOnError(context.Background(), cmd.OutOrStdout(), &retErr, &rollbackerGCP{client: cl})
if err := cl.CreateVPCs(cmd.Context(), *config.Provider.GCP.VPCsInput); err != nil {
return err
}
if err := cl.CreateFirewall(cmd.Context(), *config.Provider.GCP.FirewallInput); err != nil {
return err
}
if err := cl.CreateInstances(cmd.Context(), createInput); err != nil {
return err
}
stat, err := cl.GetState()
if err != nil {
return err
}
if err := fileHandler.WriteJSON(*config.StatePath, stat, false); err != nil {
return err
}
cmd.Println("Your Constellation was created successfully.")
return nil
}
// createGCPCompletion handels the completion of CLI arguments. It is frequently called
// while the user types arguments of the command to suggest completion.
func createGCPCompletion(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
switch len(args) {
case 0:
return []string{}, cobra.ShellCompDirectiveNoFileComp
case 1:
return gcp.InstanceTypes, cobra.ShellCompDirectiveDefault
default:
return []string{}, cobra.ShellCompDirectiveError
}
}