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gke.go
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gke.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package prepare
import (
"context"
"github.com/spf13/cobra"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/internal/networking/ingress/nginx"
"namespacelabs.dev/foundation/internal/prepare"
"namespacelabs.dev/foundation/std/cfg"
)
func newGkeCmd() *cobra.Command {
var projectId string
var clusterName string
var experimentalGCLB bool
var ingressClass string
// The subcommand `gke` does all of the work done by the parent command in addition to
// writing the host configuration for the GKE cluster.
gkeCmd := &cobra.Command{
Use: "gke --cluster={cluster-name} --env={staging|prod} --project_id={project_id}",
Short: "Prepares the Elastic Kubernetes Service host config for production.",
Args: cobra.NoArgs,
RunE: runPrepare(func(ctx context.Context, env cfg.Context) ([]prepare.Stage, error) {
if experimentalGCLB {
if ingressClass != "" {
return nil, fnerrors.New("--experimental_use_gclb can't be used with --ingress_class")
}
ingressClass = "gclb"
}
if ingressClass == "" {
ingressClass = nginx.IngressClass().Name()
}
return []prepare.Stage{
prepare.PrepareGcpProjectID(projectId),
prepare.PrepareGkeCluster(clusterName, ingressClass),
}, nil
}),
}
gkeCmd.Flags().StringVar(&clusterName, "cluster", "", "The name of the cluster we're configuring.")
gkeCmd.Flags().StringVar(&projectId, "project_id", projectId, "Configures the specified GCP project ID.")
gkeCmd.Flags().BoolVar(&experimentalGCLB, "experimental_use_gclb", experimentalGCLB, "Use GCLB with GKE, rather than an incluster nginx ingress.")
gkeCmd.Flags().StringVar(&ingressClass, "ingress_class", "", "Specify the ingress class.")
_ = cobra.MarkFlagRequired(gkeCmd.Flags(), "cluster")
_ = cobra.MarkFlagRequired(gkeCmd.Flags(), "project_id")
return gkeCmd
}