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kubectl.go
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kubectl.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 kubectl
import (
"context"
"fmt"
"path/filepath"
specs "github.com/opencontainers/image-spec/specs-go/v1"
"namespacelabs.dev/foundation/internal/artifacts"
"namespacelabs.dev/foundation/internal/artifacts/unpack"
"namespacelabs.dev/foundation/internal/compute"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/schema"
"namespacelabs.dev/foundation/std/tasks"
)
const version = "1.23.6"
var Pins = map[string]artifacts.Reference{
"linux/amd64": {
URL: fmt.Sprintf("https://dl.k8s.io/release/v%s/bin/linux/amd64/kubectl", version),
Digest: schema.Digest{
Algorithm: "sha256",
Hex: "703a06354bab9f45c80102abff89f1a62cbc2c6d80678fd3973a014acc7c500a",
},
},
"linux/arm64": {
URL: fmt.Sprintf("https://dl.k8s.io/release/v%s/bin/linux/arm64/kubectl", version),
Digest: schema.Digest{
Algorithm: "sha256",
Hex: "4be771c8e6a082ba61f0367077f480237f9858ef5efe14b1dbbfc05cd42fc360",
},
},
"darwin/arm64": {
URL: fmt.Sprintf("https://dl.k8s.io/release/v%s/bin/darwin/arm64/kubectl", version),
Digest: schema.Digest{
Algorithm: "sha256",
Hex: "d03e1f6b88443e46c11f5940a1fa935c91a0d67f5cc4ffeec35083b7e054034d",
},
},
"darwin/amd64": {
URL: fmt.Sprintf("https://dl.k8s.io/release/v%s/bin/darwin/amd64/kubectl", version),
Digest: schema.Digest{
Algorithm: "sha256",
Hex: "dedb7784744f581dc7157b0a6589c7e15d4d14a1bcd25dc5876548805034dffe",
},
},
}
type Kubectl string
func EnsureSDK(ctx context.Context, p specs.Platform) (Kubectl, error) {
sdk, err := SDK(ctx, p)
if err != nil {
return "", err
}
return compute.GetValue(ctx, sdk)
}
func SDK(ctx context.Context, p specs.Platform) (compute.Computable[Kubectl], error) {
key := fmt.Sprintf("%s/%s", p.OS, p.Architecture)
ref, ok := Pins[key]
if !ok {
return nil, fnerrors.New("platform not supported: %s", key)
}
w := unpack.Unpack("kubectl", unpack.MakeFilesystem("kubectl", 0755, ref))
return compute.Map(
tasks.Action("kubectl.ensure").Arg("version", version).HumanReadablef("Ensuring kubectl %s is installed", version),
compute.Inputs().Computable("kubectl", w),
compute.Output{},
func(ctx context.Context, r compute.Resolved) (Kubectl, error) {
return Kubectl(filepath.Join(compute.MustGetDepValue(r, w, "kubectl").Files, "kubectl")), nil
}), nil
}