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runattached.go
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runattached.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 runtime
import (
"context"
"fmt"
"os"
"namespacelabs.dev/foundation/internal/console"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/schema/runtime"
"namespacelabs.dev/foundation/std/cfg"
"namespacelabs.dev/foundation/std/execution"
)
func RunAttached(ctx context.Context, config cfg.Context, planner Planner, spec DeployableSpec, io TerminalIO) error {
plan, err := planner.PlanDeployment(ctx, DeploymentSpec{
Specs: []DeployableSpec{spec},
})
if err != nil {
return err
}
cluster, err := planner.EnsureClusterNamespace(ctx)
if err != nil {
return err
}
defer func() {
if err := cluster.DeleteDeployable(ctx, spec); err != nil {
fmt.Fprintf(console.Errors(ctx), "Deleting %s failed: %v\n", spec.Name, err)
}
}()
g := execution.NewPlan(plan.Definitions...)
// ResolveContainers will wait until the deployable is running, so we don't rely on the waiters returned by Execute.
if err := execution.Execute(ctx, "deployable.run-attached", g, nil, execution.FromContext(config), InjectCluster(cluster)); err != nil {
return fnerrors.New("failed to deploy: %w", err)
}
containers, err := cluster.ResolveContainers(ctx, spec)
if err != nil {
return err
}
var mainContainers []*runtime.ContainerReference
for _, container := range containers {
if container.Kind == runtime.ContainerKind_PRIMARY {
mainContainers = append(mainContainers, container)
}
}
if len(mainContainers) != 1 {
return fnerrors.InternalError("expected a single container, saw %d", len(mainContainers))
}
return cluster.Cluster().AttachTerminal(ctx, mainContainers[0], io)
}
func RunAttachedStdio(ctx context.Context, config cfg.Context, planner Planner, spec DeployableSpec) error {
return RunAttached(ctx, config, planner, spec, TerminalIO{
TTY: true,
Stdin: os.Stdin,
Stdout: os.Stdout,
Stderr: os.Stderr,
})
}