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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,190 @@ | ||
| // 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 cluster | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/ecdsa" | ||
| "crypto/elliptic" | ||
| "crypto/rand" | ||
| "crypto/x509" | ||
| "encoding/pem" | ||
| "fmt" | ||
| "maps" | ||
| "os" | ||
| "path" | ||
|
|
||
| builderv1beta "buf.build/gen/go/namespace/cloud/protocolbuffers/go/proto/namespace/cloud/builder/v1beta" | ||
| "github.com/docker/buildx/store" | ||
| "github.com/docker/buildx/util/dockerutil" | ||
| "github.com/docker/cli/cli/command" | ||
| "github.com/pkg/errors" | ||
| "namespacelabs.dev/foundation/internal/fnapi" | ||
| "namespacelabs.dev/foundation/internal/providers/nscloud/api" | ||
| ) | ||
|
|
||
| func setupServerSideBuildxProxy(ctx context.Context, stateDir, builderName string, use, defaultLoad bool, dockerCli *command.DockerCli, platforms []api.BuildPlatform) error { | ||
| // Generate private and public keys | ||
| privKeyPem, pubKeyPem, err := genPrivAndPublicKeysPEM() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // Ask IAM server to exchange our tenant token with a certificate using this public key | ||
| cliCert, err := fnapi.ExchangeTenantTokenForClientCert(ctx, string(pubKeyPem)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| serverBuilderConfigs := []*builderv1beta.GetBuilderConfigurationResponse{} | ||
| for _, plat := range platforms { | ||
| // Download the builder config for this platform | ||
| resp, err := api.GetBuilderConfiguration(ctx, plat) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| serverBuilderConfigs = append(serverBuilderConfigs, resp) | ||
| } | ||
|
|
||
| // Write key files in ns state directory | ||
| state, err := ensureStateDir(stateDir, buildkitProxyPath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| privKeyPath := path.Join(state, "private_key.pem") | ||
| if err := writeFileToPath(privKeyPem, privKeyPath); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| clientCertPath := path.Join(state, "client_cert.pem") | ||
| if err := writeFileToPath([]byte(cliCert.ClientCertificatePem), clientCertPath); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| builderConfigs := []builderConfig{} | ||
| for _, bc := range serverBuilderConfigs { | ||
| serverCAPath := path.Join(state, fmt.Sprintf("server_%s_cert.pem", bc.GetShape().GetMachineArch())) | ||
| if err := writeFileToPath([]byte(bc.GetServerCaPem()), serverCAPath); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| builderConfigs = append(builderConfigs, builderConfig{ | ||
| serverConfig: bc, | ||
| serverCAPath: serverCAPath, | ||
| }) | ||
| } | ||
|
|
||
| // Create buildx builders | ||
| if err := wireRemoteBuildxProxy(dockerCli, builderName, use, defaultLoad, builderConfigs, privKeyPath, clientCertPath); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| type builderConfig struct { | ||
| serverConfig *builderv1beta.GetBuilderConfigurationResponse | ||
| serverCAPath string | ||
| } | ||
|
|
||
| func genPrivAndPublicKeysPEM() ([]byte, []byte, error) { | ||
| privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| publicKey := &privateKey.PublicKey | ||
|
|
||
| publicKeyBytes, err := x509.MarshalPKIXPublicKey(publicKey) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
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| publicKeyPEM := pem.EncodeToMemory(&pem.Block{ | ||
| Type: "PUBLIC KEY", | ||
| Bytes: publicKeyBytes, | ||
| }) | ||
|
|
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| privateKeyBytes, err := x509.MarshalECPrivateKey(privateKey) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
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| privateKeyPEM := pem.EncodeToMemory(&pem.Block{ | ||
| Type: "EC PRIVATE KEY", | ||
| Bytes: privateKeyBytes, | ||
| }) | ||
|
|
||
| return privateKeyPEM, publicKeyPEM, nil | ||
| } | ||
|
|
||
| func writeFileToPath(content []byte, path string) error { | ||
| return os.WriteFile(path, content, 0600) | ||
| } | ||
|
|
||
| func wireRemoteBuildxProxy(dockerCli *command.DockerCli, name string, use, defaultLoad bool, builderConfigs []builderConfig, privKeyPath, clientCertPath string) error { | ||
| return withStore(dockerCli, func(txn *store.Txn) error { | ||
| ng, err := txn.NodeGroupByName(name) | ||
| if err != nil { | ||
| if !os.IsNotExist(errors.Cause(err)) { | ||
| return err | ||
| } | ||
| } | ||
|
|
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| const driver = "remote" | ||
|
|
||
| if ng == nil { | ||
| ng = &store.NodeGroup{ | ||
| Name: name, | ||
| Driver: driver, | ||
| } | ||
| } | ||
|
|
||
| driverOpts := map[string]string{ | ||
| "cert": clientCertPath, | ||
| "key": privKeyPath, | ||
| } | ||
|
|
||
| if defaultLoad { | ||
| // Supported starting with v0.14.0 | ||
| driverOpts["default-load"] = "true" | ||
| } | ||
|
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| for _, bc := range builderConfigs { | ||
| var platforms []string | ||
| if bc.serverConfig.GetShape().GetMachineArch() == "arm64" { | ||
| platforms = []string{"linux/arm64"} | ||
| } else { | ||
| platforms = []string{"linux/amd64"} | ||
| } | ||
|
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||
| doCopy := maps.Clone(driverOpts) | ||
| doCopy["cacert"] = bc.serverCAPath | ||
|
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| if err := ng.Update(bc.serverConfig.GetShape().GetMachineArch(), "tcp://"+bc.serverConfig.GetBuildkitEndpoint()+":443", platforms, true, true, nil, "", doCopy); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| if use { | ||
| ep, err := dockerutil.GetCurrentEndpoint(dockerCli) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| if err := txn.SetCurrent(ep, name, false, false); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| if err := txn.Save(ng); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| }) | ||
| } |
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