feat: add bootstrap gitea command

cmd/flux/bootstrap_gitea.go

@@ -0,0 +1,275 @@
+/*
+Copyright 2023 The Flux authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/fluxcd/pkg/git"
+	"github.com/fluxcd/pkg/git/gogit"
+	"github.com/spf13/cobra"
+
+	"github.com/fluxcd/flux2/v2/internal/flags"
+	"github.com/fluxcd/flux2/v2/internal/utils"
+	"github.com/fluxcd/flux2/v2/pkg/bootstrap"
+	"github.com/fluxcd/flux2/v2/pkg/bootstrap/provider"
+	"github.com/fluxcd/flux2/v2/pkg/manifestgen"
+	"github.com/fluxcd/flux2/v2/pkg/manifestgen/install"
+	"github.com/fluxcd/flux2/v2/pkg/manifestgen/sourcesecret"
+	"github.com/fluxcd/flux2/v2/pkg/manifestgen/sync"
+)
+
+var bootstrapGiteaCmd = &cobra.Command{
+	Use:   "gitea",
+	Short: "Deploy Flux on a cluster connected to a Gitea repository",
+	Long: `The bootstrap gitea command creates the Gitea repository if it doesn't exists and
+commits the Flux manifests to the specified branch.
+Then it configures the target cluster to synchronize with that repository.
+If the Flux components are present on the cluster,
+the bootstrap command will perform an upgrade if needed.`,
+	Example: `  # Create a Gitea personal access token and export it as an env var
+  export GITEA_TOKEN=<my-token>
+
+  # Run bootstrap for a private repository owned by a Gitea organization
+  flux bootstrap gitea --owner=<organization> --repository=<repository name> --path=clusters/my-cluster
+
+  # Run bootstrap for a private repository and assign organization teams to it
+  flux bootstrap gitea --owner=<organization> --repository=<repository name> --team=<team1 slug> --team=<team2 slug> --path=clusters/my-cluster
+
+  # Run bootstrap for a private repository and assign organization teams with their access level(e.g maintain, admin) to it
+  flux bootstrap gitea --owner=<organization> --repository=<repository name> --team=<team1 slug>:<access-level> --path=clusters/my-cluster
+
+  # Run bootstrap for a public repository on a personal account
+  flux bootstrap gitea --owner=<user> --repository=<repository name> --private=false --personal=true --path=clusters/my-cluster
+
+  # Run bootstrap for a private repository hosted on Gitea Enterprise using SSH auth
+  flux bootstrap gitea --owner=<organization> --repository=<repository name> --hostname=<domain> --ssh-hostname=<domain> --path=clusters/my-cluster
+
+  # Run bootstrap for a private repository hosted on Gitea Enterprise using HTTPS auth
+  flux bootstrap gitea --owner=<organization> --repository=<repository name> --hostname=<domain> --token-auth --path=clusters/my-cluster
+
+  # Run bootstrap for an existing repository with a branch named main
+  flux bootstrap gitea --owner=<organization> --repository=<repository name> --branch=main --path=clusters/my-cluster`,
+	RunE: bootstrapGiteaCmdRun,
+}
+
+type giteaFlags struct {
+	owner        string
+	repository   string
+	interval     time.Duration
+	personal     bool
+	private      bool
+	hostname     string
+	path         flags.SafeRelativePath
+	teams        []string
+	readWriteKey bool
+	reconcile    bool
+}
+
+const (
+	gtDefaultPermission = "maintain"
+	gtDefaultDomain     = "gitea.com"
+	gtTokenEnvVar       = "GITEA_TOKEN"
+)
+
+var giteaArgs giteaFlags
+
+func init() {
+	bootstrapGiteaCmd.Flags().StringVar(&giteaArgs.owner, "owner", "", "Gitea user or organization name")
+	bootstrapGiteaCmd.Flags().StringVar(&giteaArgs.repository, "repository", "", "Gitea repository name")
+	bootstrapGiteaCmd.Flags().StringSliceVar(&giteaArgs.teams, "team", []string{}, "Gitea team and the access to be given to it(team:maintain). Defaults to maintainer access if no access level is specified (also accepts comma-separated values)")
+	bootstrapGiteaCmd.Flags().BoolVar(&giteaArgs.personal, "personal", false, "if true, the owner is assumed to be a Gitea user; otherwise an org")
+	bootstrapGiteaCmd.Flags().BoolVar(&giteaArgs.private, "private", true, "if true, the repository is setup or configured as private")
+	bootstrapGiteaCmd.Flags().DurationVar(&giteaArgs.interval, "interval", time.Minute, "sync interval")
+	bootstrapGiteaCmd.Flags().StringVar(&giteaArgs.hostname, "hostname", gtDefaultDomain, "Gitea hostname")
+	bootstrapGiteaCmd.Flags().Var(&giteaArgs.path, "path", "path relative to the repository root, when specified the cluster sync will be scoped to this path")
+	bootstrapGiteaCmd.Flags().BoolVar(&giteaArgs.readWriteKey, "read-write-key", false, "if true, the deploy key is configured with read/write permissions")
+	bootstrapGiteaCmd.Flags().BoolVar(&giteaArgs.reconcile, "reconcile", false, "if true, the configured options are also reconciled if the repository already exists")
+
+	bootstrapCmd.AddCommand(bootstrapGiteaCmd)
+}
+
+func bootstrapGiteaCmdRun(cmd *cobra.Command, args []string) error {
+	gtToken := os.Getenv(gtTokenEnvVar)
+	if gtToken == "" {
+		var err error
+		gtToken, err = readPasswordFromStdin("Please enter your Gitea personal access token (PAT): ")
+		if err != nil {
+			return fmt.Errorf("could not read token: %w", err)
+		}
+	}
+
+	if err := bootstrapValidate(); err != nil {
+		return err
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), rootArgs.timeout)
+	defer cancel()
+
+	kubeClient, err := utils.KubeClient(kubeconfigArgs, kubeclientOptions)
+	if err != nil {
+		return err
+	}
+
+	// Manifest base
+	if ver, err := getVersion(bootstrapArgs.version); err != nil {
+		return err
+	} else {
+		bootstrapArgs.version = ver
+	}
+	manifestsBase, err := buildEmbeddedManifestBase()
+	if err != nil {
+		return err
+	}
+	defer os.RemoveAll(manifestsBase)
+
+	var caBundle []byte
+	if bootstrapArgs.caFile != "" {
+		var err error
+		caBundle, err = os.ReadFile(bootstrapArgs.caFile)
+		if err != nil {
+			return fmt.Errorf("unable to read TLS CA file: %w", err)
+		}
+	}
+	// Build Gitea provider
+	providerCfg := provider.Config{
+		Provider: provider.GitProviderGitea,
+		Hostname: giteaArgs.hostname,
+		Token:    gtToken,
+		CaBundle: caBundle,
+	}
+	providerClient, err := provider.BuildGitProvider(providerCfg)
+	if err != nil {
+		return err
+	}
+
+	tmpDir, err := manifestgen.MkdirTempAbs("", "flux-bootstrap-")
+	if err != nil {
+		return fmt.Errorf("failed to create temporary working dir: %w", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	clientOpts := []gogit.ClientOption{gogit.WithDiskStorage(), gogit.WithFallbackToDefaultKnownHosts()}
+	gitClient, err := gogit.NewClient(tmpDir, &git.AuthOptions{
+		Transport: git.HTTPS,
+		Username:  giteaArgs.owner,
+		Password:  gtToken,
+		CAFile:    caBundle,
+	}, clientOpts...)
+	if err != nil {
+		return fmt.Errorf("failed to create a Git client: %w", err)
+	}
+
+	// Install manifest config
+	installOptions := install.Options{
+		BaseURL:                rootArgs.defaults.BaseURL,
+		Version:                bootstrapArgs.version,
+		Namespace:              *kubeconfigArgs.Namespace,
+		Components:             bootstrapComponents(),
+		Registry:               bootstrapArgs.registry,
+		ImagePullSecret:        bootstrapArgs.imagePullSecret,
+		WatchAllNamespaces:     bootstrapArgs.watchAllNamespaces,
+		NetworkPolicy:          bootstrapArgs.networkPolicy,
+		LogLevel:               bootstrapArgs.logLevel.String(),
+		NotificationController: rootArgs.defaults.NotificationController,
+		ManifestFile:           rootArgs.defaults.ManifestFile,
+		Timeout:                rootArgs.timeout,
+		TargetPath:             giteaArgs.path.ToSlash(),
+		ClusterDomain:          bootstrapArgs.clusterDomain,
+		TolerationKeys:         bootstrapArgs.tolerationKeys,
+	}
+	if customBaseURL := bootstrapArgs.manifestsPath; customBaseURL != "" {
+		installOptions.BaseURL = customBaseURL
+	}
+
+	// Source generation and secret config
+	secretOpts := sourcesecret.Options{
+		Name:         bootstrapArgs.secretName,
+		Namespace:    *kubeconfigArgs.Namespace,
+		TargetPath:   giteaArgs.path.ToSlash(),
+		ManifestFile: sourcesecret.MakeDefaultOptions().ManifestFile,
+	}
+	if bootstrapArgs.tokenAuth {
+		secretOpts.Username = "git"
+		secretOpts.Password = gtToken
+		secretOpts.CAFile = caBundle
+	} else {
+		secretOpts.PrivateKeyAlgorithm = sourcesecret.PrivateKeyAlgorithm(bootstrapArgs.keyAlgorithm)
+		secretOpts.RSAKeyBits = int(bootstrapArgs.keyRSABits)
+		secretOpts.ECDSACurve = bootstrapArgs.keyECDSACurve.Curve
+
+		secretOpts.SSHHostname = giteaArgs.hostname
+		if bootstrapArgs.sshHostname != "" {
+			secretOpts.SSHHostname = bootstrapArgs.sshHostname
+		}
+	}
+
+	// Sync manifest config
+	syncOpts := sync.Options{
+		Interval:          giteaArgs.interval,
+		Name:              *kubeconfigArgs.Namespace,
+		Namespace:         *kubeconfigArgs.Namespace,
+		Branch:            bootstrapArgs.branch,
+		Secret:            bootstrapArgs.secretName,
+		TargetPath:        giteaArgs.path.ToSlash(),
+		ManifestFile:      sync.MakeDefaultOptions().ManifestFile,
+		RecurseSubmodules: bootstrapArgs.recurseSubmodules,
+	}
+
+	entityList, err := bootstrap.LoadEntityListFromPath(bootstrapArgs.gpgKeyRingPath)
+	if err != nil {
+		return err
+	}
+
+	// Bootstrap config
+	bootstrapOpts := []bootstrap.GitProviderOption{
+		bootstrap.WithProviderRepository(giteaArgs.owner, giteaArgs.repository, giteaArgs.personal),
+		bootstrap.WithBranch(bootstrapArgs.branch),
+		bootstrap.WithBootstrapTransportType("https"),
+		bootstrap.WithSignature(bootstrapArgs.authorName, bootstrapArgs.authorEmail),
+		bootstrap.WithCommitMessageAppendix(bootstrapArgs.commitMessageAppendix),
+		bootstrap.WithProviderTeamPermissions(mapTeamSlice(giteaArgs.teams, gtDefaultPermission)),
+		bootstrap.WithReadWriteKeyPermissions(giteaArgs.readWriteKey),
+		bootstrap.WithKubeconfig(kubeconfigArgs, kubeclientOptions),
+		bootstrap.WithLogger(logger),
+		bootstrap.WithGitCommitSigning(entityList, bootstrapArgs.gpgPassphrase, bootstrapArgs.gpgKeyID),
+	}
+	if bootstrapArgs.sshHostname != "" {
+		bootstrapOpts = append(bootstrapOpts, bootstrap.WithSSHHostname(bootstrapArgs.sshHostname))
+	}
+	if bootstrapArgs.tokenAuth {
+		bootstrapOpts = append(bootstrapOpts, bootstrap.WithSyncTransportType("https"))
+	}
+	if !giteaArgs.private {
+		bootstrapOpts = append(bootstrapOpts, bootstrap.WithProviderRepositoryConfig("", "", "public"))
+	}
+	if giteaArgs.reconcile {
+		bootstrapOpts = append(bootstrapOpts, bootstrap.WithReconcile())
+	}
+
+	// Setup bootstrapper with constructed configs
+	b, err := bootstrap.NewGitProviderBootstrapper(gitClient, providerClient, kubeClient, bootstrapOpts...)
+	if err != nil {
+		return err
+	}
+
+	// Run
+	return bootstrap.Run(ctx, b, manifestsBase, installOptions, secretOpts, syncOpts, rootArgs.pollInterval, rootArgs.timeout)
+}

go.mod

@@ -63,6 +63,7 @@ require (
 )
 
 require (
+	code.gitea.io/sdk/gitea v0.16.0 // indirect
 	dario.cat/mergo v1.0.0 // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.7.1 // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.3.1 // indirect
@@ -95,6 +96,7 @@ require (
 	github.com/containerd/stargz-snapshotter/estargz v0.14.3 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/davidmz/go-pageant v1.0.2 // indirect
 	github.com/docker/cli v24.0.0+incompatible // indirect
 	github.com/docker/distribution v2.8.2+incompatible // indirect
 	github.com/docker/docker v24.0.7+incompatible // indirect
@@ -114,6 +116,7 @@ require (
 	github.com/fluxcd/pkg/apis/kustomize v1.1.1 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/go-errors/errors v1.4.2 // indirect
+	github.com/go-fed/httpsig v1.1.0 // indirect
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.5.0 // indirect
 	github.com/go-openapi/jsonpointer v0.19.6 // indirect
@@ -141,6 +144,7 @@ require (
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/go-retryablehttp v0.7.4 // indirect
+	github.com/hashicorp/go-version v1.5.0 // indirect
 	github.com/hashicorp/golang-lru/arc/v2 v2.0.5 // indirect
 	github.com/hashicorp/golang-lru/v2 v2.0.5 // indirect
 	github.com/imdario/mergo v0.3.15 // indirect

go.sum

@@ -1,5 +1,7 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+code.gitea.io/sdk/gitea v0.16.0 h1:gAfssETO1Hv9QbE+/nhWu7EjoFQYKt6kPoyDytQgw00=
+code.gitea.io/sdk/gitea v0.16.0/go.mod h1:ndkDk99BnfiUCCYEUhpNzi0lpmApXlwRFqClBlOlEBg=
 dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk=
 dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
 github.com/AdaLogics/go-fuzz-headers v0.0.0-20230106234847-43070de90fa1 h1:EKPd1INOIyr5hWOWhvpmQpY6tKjeG0hT1s3AMC/9fic=
@@ -97,6 +99,8 @@ github.com/cyphar/filepath-securejoin v0.2.4/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxG
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davidmz/go-pageant v1.0.2 h1:bPblRCh5jGU+Uptpz6LgMZGD5hJoOt7otgT454WvHn0=
+github.com/davidmz/go-pageant v1.0.2/go.mod h1:P2EDDnMqIwG5Rrp05dTRITj9z2zpGcD9efWSkTNKLIE=
 github.com/distribution/distribution/v3 v3.0.0-20230823142118-4f7424c8eb41 h1:vlGNYFw1NB27Gk5tIwJpiog1Ti6FKOUI+DoFZKoCDZo=
 github.com/distribution/distribution/v3 v3.0.0-20230823142118-4f7424c8eb41/go.mod h1:WREzLx07iIFUGvbm6tBoqGt40zOC3whiM1qkcWOMFrs=
 github.com/dnaeon/go-vcr v1.2.0 h1:zHCHvJYTMh1N7xnV7zf1m1GPBF9Ad0Jk/whtQ1663qI=
@@ -190,6 +194,8 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/gliderlabs/ssh v0.3.5 h1:OcaySEmAQJgyYcArR+gGGTHCyE7nvhEMTlYY+Dp8CpY=
 github.com/go-errors/errors v1.4.2 h1:J6MZopCL4uSllY1OfXM374weqZFFItUbrImctkmUxIA=
 github.com/go-errors/errors v1.4.2/go.mod h1:sIVyrIiJhuEF+Pj9Ebtd6P/rEYROXFi3BopGUQ5a5Og=
+github.com/go-fed/httpsig v1.1.0 h1:9M+hb0jkEICD8/cAiNqEB66R87tTINszBRTjwjQzWcI=
+github.com/go-fed/httpsig v1.1.0/go.mod h1:RCMrTZvN1bJYtofsG4rd5NaO5obxQ5xBkdiS7xsT7bM=
 github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 h1:+zs/tPmkDkHx3U66DAb0lQFJrpS6731Oaa12ikc+DiI=
 github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376/go.mod h1:an3vInlBmSxCcxctByoQdvwPiA7DTK7jaaFDBTtu0ic=
 github.com/go-git/go-billy/v5 v5.5.0 h1:yEY4yhzCDuMGSv83oGxiBotRzhwhNr8VZyphhiu+mTU=
@@ -301,6 +307,8 @@ github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+l
 github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
 github.com/hashicorp/go-retryablehttp v0.7.4 h1:ZQgVdpTdAL7WpMIwLzCfbalOcSUdkDZnpUv3/+BxzFA=
 github.com/hashicorp/go-retryablehttp v0.7.4/go.mod h1:Jy/gPYAdjqffZ/yFGCFV2doI5wjtH1ewM9u8iYVjtX8=
+github.com/hashicorp/go-version v1.5.0 h1:O293SZ2Eg+AAYijkVK3jR786Am1bhDEh2GHT0tIVE5E=
+github.com/hashicorp/go-version v1.5.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
 github.com/hashicorp/golang-lru/arc/v2 v2.0.5 h1:l2zaLDubNhW4XO3LnliVj0GXO3+/CGNJAg1dcN2Fpfw=
 github.com/hashicorp/golang-lru/arc/v2 v2.0.5/go.mod h1:ny6zBSQZi2JxIeYcv7kt2sH2PXJtirBN7RDhRpxPkxU=
 github.com/hashicorp/golang-lru/v2 v2.0.5 h1:wW7h1TG88eUIJ2i69gaE3uNVtEPIagzhGvHgwfx2Vm4=
@@ -506,7 +514,9 @@ golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnf
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.3.1-0.20221117191849-2c476679df9a/go.mod h1:hebNnKkNXi2UzZN1eVRvBB7co0a+JxK6XbPiWVs/3J4=
 golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=

pkg/bootstrap/provider/factory.go

@@ -19,6 +19,7 @@ package provider
 import (
 	"fmt"
 
+	"github.com/fluxcd/go-git-providers/gitea"
 	"github.com/fluxcd/go-git-providers/github"
 	"github.com/fluxcd/go-git-providers/gitlab"
 	"github.com/fluxcd/go-git-providers/gitprovider"
@@ -45,6 +46,17 @@ func BuildGitProvider(config Config) (gitprovider.Client, error) {
 		if client, err = github.NewClient(opts...); err != nil {
 			return nil, err
 		}
+	case GitProviderGitea:
+		opts := []gitprovider.ClientOption{}
+		if config.Hostname != "" {
+			opts = append(opts, gitprovider.WithDomain(config.Hostname))
+		}
+		if config.CaBundle != nil {
+			opts = append(opts, gitprovider.WithCustomCAPostChainTransportHook(config.CaBundle))
+		}
+		if client, err = gitea.NewClient(config.Token, opts...); err != nil {
+			return nil, err
+		}
 	case GitProviderGitLab:
 		opts := []gitprovider.ClientOption{
 			gitprovider.WithConditionalRequests(true),

pkg/bootstrap/provider/provider.go

@@ -21,6 +21,7 @@ type GitProvider string
 
 const (
 	GitProviderGitHub GitProvider = "github"
+	GitProviderGitea  GitProvider = "gitea"
 	GitProviderGitLab GitProvider = "gitlab"
 	GitProviderStash  GitProvider = "stash"
 )