Allow overriding the default username/hostname in kopia (#3223)

This allows setting the username/hostname
kopia will use for maintenance. This
information is recorded in the kopia config
file during connect and reused during open

If no values are given, kopia pulls the
values from the OS

---

#### Does this PR need a docs update or release note?

- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No

#### Type of change

- [x] 🌻 Feature
- [ ] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Supportability/Tests
- [ ] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

* #3077

#### Test Plan

- [ ] 💪 Manual
- [x] ⚡ Unit test
- [ ] 💚 E2E

src/internal/kopia/conn.go

@@ -18,6 +18,7 @@ import (
 	"github.com/kopia/kopia/snapshot/snapshotfs"
 	"github.com/pkg/errors"
 
+	"github.com/alcionai/corso/src/pkg/control"
 	"github.com/alcionai/corso/src/pkg/storage"
 )
 
@@ -69,7 +70,7 @@ func NewConn(s storage.Storage) *conn {
 	}
 }
 
-func (w *conn) Initialize(ctx context.Context) error {
+func (w *conn) Initialize(ctx context.Context, opts control.RepoOptions) error {
 	bst, err := blobStoreByProvider(ctx, w.storage)
 	if err != nil {
 		return clues.Wrap(err, "initializing storage")
@@ -92,6 +93,7 @@ func (w *conn) Initialize(ctx context.Context) error {
 
 	err = w.commonConnect(
 		ctx,
+		opts,
 		cfg.KopiaCfgDir,
 		bst,
 		cfg.CorsoPassphrase,
@@ -108,7 +110,7 @@ func (w *conn) Initialize(ctx context.Context) error {
 	return nil
 }
 
-func (w *conn) Connect(ctx context.Context) error {
+func (w *conn) Connect(ctx context.Context, opts control.RepoOptions) error {
 	bst, err := blobStoreByProvider(ctx, w.storage)
 	if err != nil {
 		return clues.Wrap(err, "initializing storage")
@@ -122,6 +124,7 @@ func (w *conn) Connect(ctx context.Context) error {
 
 	return w.commonConnect(
 		ctx,
+		opts,
 		cfg.KopiaCfgDir,
 		bst,
 		cfg.CorsoPassphrase,
@@ -131,16 +134,21 @@ func (w *conn) Connect(ctx context.Context) error {
 
 func (w *conn) commonConnect(
 	ctx context.Context,
+	opts control.RepoOptions,
 	configDir string,
 	bst blob.Storage,
 	password, compressor string,
 ) error {
-	var opts *repo.ConnectOptions
+	kopiaOpts := &repo.ConnectOptions{
+		ClientOptions: repo.ClientOptions{
+			Username: opts.User,
+			Hostname: opts.Host,
+		},
+	}
+
 	if len(configDir) > 0 {
-		opts = &repo.ConnectOptions{
-			CachingOptions: content.CachingOptions{
-				CacheDirectory: configDir,
-			},
+		kopiaOpts.CachingOptions = content.CachingOptions{
+			CacheDirectory: configDir,
 		}
 	} else {
 		configDir = defaultKopiaConfigDir
@@ -154,7 +162,7 @@ func (w *conn) commonConnect(
 		cfgFile,
 		bst,
 		password,
-		opts,
+		kopiaOpts,
 	); err != nil {
 		return clues.Wrap(err, "connecting to repo").WithClues(ctx)
 	}

src/internal/kopia/conn_test.go

@@ -14,16 +14,18 @@ import (
 	"github.com/stretchr/testify/suite"
 
 	"github.com/alcionai/corso/src/internal/tester"
+	"github.com/alcionai/corso/src/pkg/control"
 	"github.com/alcionai/corso/src/pkg/storage"
 )
 
-//revive:disable:context-as-argument
-func openKopiaRepo(t *testing.T, ctx context.Context) (*conn, error) {
-	//revive:enable:context-as-argument
+func openKopiaRepo(
+	t *testing.T,
+	ctx context.Context, //revive:disable-line:context-as-argument
+) (*conn, error) {
 	st := tester.NewPrefixedS3Storage(t)
 
 	k := NewConn(st)
-	if err := k.Initialize(ctx); err != nil {
+	if err := k.Initialize(ctx, control.RepoOptions{}); err != nil {
 		return nil, err
 	}
 
@@ -77,13 +79,13 @@ func (suite *WrapperIntegrationSuite) TestRepoExistsError() {
 	st := tester.NewPrefixedS3Storage(t)
 	k := NewConn(st)
 
-	err := k.Initialize(ctx)
+	err := k.Initialize(ctx, control.RepoOptions{})
 	require.NoError(t, err, clues.ToCore(err))
 
 	err = k.Close(ctx)
 	require.NoError(t, err, clues.ToCore(err))
 
-	err = k.Initialize(ctx)
+	err = k.Initialize(ctx, control.RepoOptions{})
 	assert.Error(t, err, clues.ToCore(err))
 	assert.ErrorIs(t, err, ErrorRepoAlreadyExists)
 }
@@ -97,7 +99,7 @@ func (suite *WrapperIntegrationSuite) TestBadProviderErrors() {
 	st.Provider = storage.ProviderUnknown
 	k := NewConn(st)
 
-	err := k.Initialize(ctx)
+	err := k.Initialize(ctx, control.RepoOptions{})
 	assert.Error(t, err, clues.ToCore(err))
 }
 
@@ -109,7 +111,7 @@ func (suite *WrapperIntegrationSuite) TestConnectWithoutInitErrors() {
 	st := tester.NewPrefixedS3Storage(t)
 	k := NewConn(st)
 
-	err := k.Connect(ctx)
+	err := k.Connect(ctx, control.RepoOptions{})
 	assert.Error(t, err, clues.ToCore(err))
 }
 
@@ -356,7 +358,7 @@ func (suite *WrapperIntegrationSuite) TestConfigDefaultsSetOnInitAndNotOnConnect
 			err = k.Close(ctx)
 			require.NoError(t, err, clues.ToCore(err))
 
-			err = k.Connect(ctx)
+			err = k.Connect(ctx, control.RepoOptions{})
 			require.NoError(t, err, clues.ToCore(err))
 
 			defer func() {
@@ -384,9 +386,63 @@ func (suite *WrapperIntegrationSuite) TestInitAndConnWithTempDirectory() {
 	require.NoError(t, err, clues.ToCore(err))
 
 	// Re-open with Connect.
-	err = k.Connect(ctx)
+	err = k.Connect(ctx, control.RepoOptions{})
 	require.NoError(t, err, clues.ToCore(err))
 
 	err = k.Close(ctx)
 	assert.NoError(t, err, clues.ToCore(err))
 }
+
+func (suite *WrapperIntegrationSuite) TestSetUserAndHost() {
+	ctx, flush := tester.NewContext()
+	defer flush()
+
+	opts := control.RepoOptions{
+		User: "foo",
+		Host: "bar",
+	}
+
+	t := suite.T()
+	st := tester.NewPrefixedS3Storage(t)
+	k := NewConn(st)
+
+	err := k.Initialize(ctx, opts)
+	require.NoError(t, err, clues.ToCore(err))
+
+	kopiaOpts := k.ClientOptions()
+	require.Equal(t, opts.User, kopiaOpts.Username)
+	require.Equal(t, opts.Host, kopiaOpts.Hostname)
+
+	err = k.Close(ctx)
+	require.NoError(t, err, clues.ToCore(err))
+
+	// Re-open with Connect and a different user/hostname.
+	opts.User = "hello"
+	opts.Host = "world"
+
+	err = k.Connect(ctx, opts)
+	require.NoError(t, err, clues.ToCore(err))
+
+	kopiaOpts = k.ClientOptions()
+	require.Equal(t, opts.User, kopiaOpts.Username)
+	require.Equal(t, opts.Host, kopiaOpts.Hostname)
+
+	err = k.Close(ctx)
+	require.NoError(t, err, clues.ToCore(err))
+
+	// Make sure not setting the values uses the kopia defaults.
+	opts.User = ""
+	opts.Host = ""
+
+	err = k.Connect(ctx, opts)
+	require.NoError(t, err, clues.ToCore(err))
+
+	kopiaOpts = k.ClientOptions()
+	assert.NotEmpty(t, kopiaOpts.Username)
+	assert.NotEqual(t, "hello", kopiaOpts.Username)
+	assert.NotEmpty(t, kopiaOpts.Hostname)
+	assert.NotEqual(t, "world", kopiaOpts.Hostname)
+
+	err = k.Close(ctx)
+	assert.NoError(t, err, clues.ToCore(err))
+}

src/internal/kopia/model_store_test.go

@@ -17,6 +17,7 @@ import (
 	"github.com/alcionai/corso/src/internal/model"
 	"github.com/alcionai/corso/src/internal/tester"
 	"github.com/alcionai/corso/src/pkg/backup"
+	"github.com/alcionai/corso/src/pkg/control"
 )
 
 type fooModel struct {
@@ -803,7 +804,7 @@ func openConnAndModelStore(
 	st := tester.NewPrefixedS3Storage(t)
 	c := NewConn(st)
 
-	err := c.Initialize(ctx)
+	err := c.Initialize(ctx, control.RepoOptions{})
 	require.NoError(t, err, clues.ToCore(err))
 
 	defer func() {
@@ -822,7 +823,7 @@ func reconnectToModelStore(
 	ctx context.Context, //revive:disable-line:context-as-argument
 	c *conn,
 ) *ModelStore {
-	err := c.Connect(ctx)
+	err := c.Connect(ctx, control.RepoOptions{})
 	require.NoError(t, err, clues.ToCore(err))
 
 	defer func() {

src/internal/operations/backup_integration_test.go

@@ -83,7 +83,7 @@ func prepNewTestBackupOp(
 		k  = kopia.NewConn(st)
 	)
 
-	err := k.Initialize(ctx)
+	err := k.Initialize(ctx, control.RepoOptions{})
 	require.NoError(t, err, clues.ToCore(err))
 
 	// kopiaRef comes with a count of 1 and Wrapper bumps it again so safe

src/internal/operations/restore_test.go

@@ -175,7 +175,7 @@ func (suite *RestoreOpIntegrationSuite) SetupSuite() {
 
 	suite.acct = tester.NewM365Account(t)
 
-	err := k.Initialize(ctx)
+	err := k.Initialize(ctx, control.RepoOptions{})
 	require.NoError(t, err, clues.ToCore(err))
 
 	suite.kopiaCloser = func(ctx context.Context) {

src/internal/streamstore/collectables_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/alcionai/corso/src/internal/kopia"
 	"github.com/alcionai/corso/src/internal/tester"
 	"github.com/alcionai/corso/src/pkg/backup/details"
+	"github.com/alcionai/corso/src/pkg/control"
 	"github.com/alcionai/corso/src/pkg/fault"
 	"github.com/alcionai/corso/src/pkg/path"
 )
@@ -41,7 +42,7 @@ func (suite *StreamStoreIntgSuite) SetupSubTest() {
 	st := tester.NewPrefixedS3Storage(t)
 
 	k := kopia.NewConn(st)
-	require.NoError(t, k.Initialize(ctx))
+	require.NoError(t, k.Initialize(ctx, control.RepoOptions{}))
 
 	suite.kcloser = func() { k.Close(ctx) }
 

src/pkg/control/options.go

@@ -13,6 +13,7 @@ type Options struct {
 	SkipReduce         bool            `json:"skipReduce"`
 	ToggleFeatures     Toggles         `json:"toggleFeatures"`
 	Parallelism        Parallelism     `json:"parallelism"`
+	Repo               RepoOptions     `json:"repo"`
 }
 
 type FailureBehavior string
@@ -33,6 +34,12 @@ const (
 	BestEffort FailureBehavior = "best-effort"
 )
 
+// Repo represents options that are specific to the repo storing backed up data.
+type RepoOptions struct {
+	User string `json:"user"`
+	Host string `json:"host"`
+}
+
 // Defaults provides an Options with the default values set.
 func Defaults() Options {
 	return Options{

src/pkg/repository/repository.go

@@ -120,7 +120,7 @@ func Initialize(
 	}()
 
 	kopiaRef := kopia.NewConn(s)
-	if err := kopiaRef.Initialize(ctx); err != nil {
+	if err := kopiaRef.Initialize(ctx, opts.Repo); err != nil {
 		// replace common internal errors so that sdk users can check results with errors.Is()
 		if errors.Is(err, kopia.ErrorRepoAlreadyExists) {
 			return nil, clues.Stack(ErrorRepoAlreadyExists, err).WithClues(ctx)
@@ -202,7 +202,7 @@ func Connect(
 	defer close(complete)
 
 	kopiaRef := kopia.NewConn(s)
-	if err := kopiaRef.Connect(ctx); err != nil {
+	if err := kopiaRef.Connect(ctx, opts.Repo); err != nil {
 		return nil, clues.Wrap(err, "connecting kopia client")
 	}
 	// kopiaRef comes with a count of 1 and NewWrapper/NewModelStore bumps it again so safe

src/pkg/repository/repository_unexported_test.go

@@ -20,6 +20,7 @@ import (
 	"github.com/alcionai/corso/src/internal/version"
 	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/backup/details"
+	"github.com/alcionai/corso/src/pkg/control"
 	"github.com/alcionai/corso/src/pkg/fault"
 	"github.com/alcionai/corso/src/pkg/path"
 	"github.com/alcionai/corso/src/pkg/selectors"
@@ -236,10 +237,10 @@ func (suite *RepositoryModelIntgSuite) SetupSuite() {
 
 	require.NotNil(t, k)
 
-	err = k.Initialize(ctx)
+	err = k.Initialize(ctx, control.RepoOptions{})
 	require.NoError(t, err, clues.ToCore(err))
 
-	err = k.Connect(ctx)
+	err = k.Connect(ctx, control.RepoOptions{})
 	require.NoError(t, err, clues.ToCore(err))
 
 	suite.kopiaCloser = func(ctx context.Context) {
@@ -286,8 +287,8 @@ func (suite *RepositoryModelIntgSuite) TestGetRepositoryModel() {
 		k = kopia.NewConn(s)
 	)
 
-	require.NoError(t, k.Initialize(ctx))
-	require.NoError(t, k.Connect(ctx))
+	require.NoError(t, k.Initialize(ctx, control.RepoOptions{}))
+	require.NoError(t, k.Connect(ctx, control.RepoOptions{}))
 
 	defer k.Close(ctx)