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attach.go
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attach.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 terminal
import (
"context"
"errors"
"os"
"github.com/spf13/cobra"
"namespacelabs.dev/foundation/internal/cli/cmd/cluster"
"namespacelabs.dev/foundation/internal/cli/fncobra"
"namespacelabs.dev/foundation/internal/fnerrors"
)
func newAttachCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "attach [instance-id]",
Short: "Attaches to a terminal source.",
Args: cobra.MaximumNArgs(1),
}
sshAgent := cmd.Flags().BoolP("ssh_agent", "A", false, "If specified, forwards the local SSH agent.")
cmd.RunE = fncobra.RunE(func(ctx context.Context, args []string) error {
c, _, err := cluster.SelectRunningCluster(ctx, args)
if err != nil {
if errors.Is(err, cluster.ErrEmptyClusterList) {
cluster.PrintCreateClusterMsg(ctx)
return nil
}
return err
}
if c == nil {
return nil
}
return cluster.InlineSsh(ctx, c, *sshAgent, []string{"nsc", "internal", "attach", "/bin/bash"})
})
return cmd
}
func newRunScriptCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "run-script [instance-id]",
Short: "Runs specified script on a terminal source.",
Args: cobra.MaximumNArgs(1),
}
scriptFile := cmd.Flags().StringP("file", "f", "", "The script file to run.")
sshAgent := cmd.Flags().BoolP("ssh_agent", "A", false, "If specified, forwards the local SSH agent.")
cmd.RunE = fncobra.RunE(func(ctx context.Context, args []string) error {
if *scriptFile == "" {
return fnerrors.New("--file/-f is required")
}
contents, err := os.ReadFile(*scriptFile)
if err != nil {
return err
}
c, _, err := cluster.SelectRunningCluster(ctx, args)
if err != nil {
if errors.Is(err, cluster.ErrEmptyClusterList) {
cluster.PrintCreateClusterMsg(ctx)
return nil
}
return err
}
if c == nil {
return nil
}
return cluster.InlineSsh(ctx, c, *sshAgent, []string{"nsc", "internal", "attach", "--", "/bin/bash", "-c", string(contents)})
})
return cmd
}