mirror of
https://github.com/edgelesssys/constellation.git
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b7425db72a
* Add Helm wrapper to constellation-lib * Move helm package to constellation-lib --------- Signed-off-by: Daniel Weiße <dw@edgeless.systems>
111 lines
3.4 KiB
Go
111 lines
3.4 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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package cmd
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import (
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"context"
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"fmt"
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"io"
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"os"
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"time"
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"github.com/spf13/cobra"
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"google.golang.org/grpc"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/client-go/tools/clientcmd"
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clientcodec "k8s.io/client-go/tools/clientcmd/api/latest"
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"sigs.k8s.io/yaml"
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"github.com/edgelesssys/constellation/v2/internal/file"
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)
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// NewInitCmd returns a new cobra.Command for the init command.
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func NewInitCmd() *cobra.Command {
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cmd := &cobra.Command{
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Use: "init",
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Short: "Initialize the Constellation cluster",
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Long: "Initialize the Constellation cluster.\n\n" +
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"Start your confidential Kubernetes.",
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Args: cobra.ExactArgs(0),
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RunE: func(cmd *cobra.Command, args []string) error {
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// Define flags for apply backend that are not set by init
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cmd.Flags().Bool("yes", false, "")
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// We always want to skip the infrastructure phase here, to be aligned with the
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// functionality of the old init command.
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cmd.Flags().StringSlice("skip-phases", []string{string(skipInfrastructurePhase)}, "")
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cmd.Flags().Duration("helm-timeout", 10*time.Minute, "")
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return runApply(cmd, args)
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},
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Deprecated: "use 'constellation apply' instead.",
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}
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cmd.Flags().Bool("conformance", false, "enable conformance mode")
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cmd.Flags().Bool("skip-helm-wait", false, "install helm charts without waiting for deployments to be ready")
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cmd.Flags().Bool("merge-kubeconfig", false, "merge Constellation kubeconfig file with default kubeconfig file in $HOME/.kube/config")
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return cmd
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}
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func writeRow(wr io.Writer, col1 string, col2 string) {
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fmt.Fprint(wr, col1, "\t", col2, "\n")
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}
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type configMerger interface {
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mergeConfigs(configPath string, fileHandler file.Handler) error
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kubeconfigEnvVar() string
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}
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type kubeconfigMerger struct {
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log debugLog
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}
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func (c *kubeconfigMerger) mergeConfigs(configPath string, fileHandler file.Handler) error {
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constellConfig, err := clientcmd.LoadFromFile(configPath)
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if err != nil {
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return fmt.Errorf("loading admin kubeconfig: %w", err)
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}
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loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
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loadingRules.Precedence = []string{
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clientcmd.RecommendedHomeFile,
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configPath, // our config should overwrite the default config
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}
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c.log.Debugf("Kubeconfig file loading precedence: %v", loadingRules.Precedence)
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// merge the kubeconfigs
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cfg, err := loadingRules.Load()
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if err != nil {
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return fmt.Errorf("loading merged kubeconfig: %w", err)
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}
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// Set the current context to the cluster we just created
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cfg.CurrentContext = constellConfig.CurrentContext
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c.log.Debugf("Set current context to %s", cfg.CurrentContext)
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json, err := runtime.Encode(clientcodec.Codec, cfg)
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if err != nil {
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return fmt.Errorf("encoding merged kubeconfig: %w", err)
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}
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mergedKubeconfig, err := yaml.JSONToYAML(json)
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if err != nil {
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return fmt.Errorf("converting merged kubeconfig to YAML: %w", err)
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}
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if err := fileHandler.Write(clientcmd.RecommendedHomeFile, mergedKubeconfig, file.OptOverwrite); err != nil {
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return fmt.Errorf("writing merged kubeconfig to file: %w", err)
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}
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c.log.Debugf("Merged kubeconfig into default config file: %s", clientcmd.RecommendedHomeFile)
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return nil
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}
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func (c *kubeconfigMerger) kubeconfigEnvVar() string {
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return os.Getenv(clientcmd.RecommendedConfigPathEnvVar)
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}
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type grpcDialer interface {
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Dial(ctx context.Context, target string) (*grpc.ClientConn, error)
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}
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