Jul 16, 2025 · Jul 21, 2025 · Jul 21, 2025
diff --git a/agent/agent.go b/agent/agent.go
 // return existing devcontainers but actual container detection
 // and creation will be deferred.
 a.containerAPI.Init(
 agentcontainers.WithManifestInfo(manifest.OwnerName, manifest.WorkspaceName, manifest.AgentName),
 agentcontainers.WithManifestInfo(manifest.OwnerName, manifest.WorkspaceName, manifest.AgentName, manifest.Directory),
 agentcontainers.WithDevcontainers(manifest.Devcontainers, manifest.Scripts),
 agentcontainers.WithSubAgentClient(agentcontainers.NewSubAgentClientFromAPI(a.logger, aAPI)),
 )
diff --git a/agent/agentcontainers/api.go b/agent/agentcontainers/api.go
 "encoding/json"
 "errors"
 "fmt"
 "io/fs"
 "maps"
 "net/http"
 "os"
 "github.com/fsnotify/fsnotify"
 "github.com/go-chi/chi/v5"
 "github.com/google/uuid"
 "github.com/spf13/afero"
 "golang.org/x/xerrors"

 "cdr.dev/slog"
 updateInterval              time.Duration   // Interval for periodic container updates.
 logger                      slog.Logger
 watcher                     watcher.Watcher
 fs                          afero.Fs
 execer                      agentexec.Execer
 commandEnv                  CommandEnv
 ccli                        ContainerCLI
 subAgentURL                 string
 subAgentEnv                 []string

 ownerName     string
 workspaceName string
 parentAgent   string
 ownerName      string
 workspaceName  string
 parentAgent    string
 agentDirectory string

 mu                       sync.RWMutex  // Protects the following fields.
 initDone                 chan struct{} // Closed by Init.

 // WithManifestInfo sets the owner name, and workspace name
 // for the sub-agent.
 func WithManifestInfo(owner, workspace, parentAgent string) Option {
 func WithManifestInfo(owner, workspace, parentAgent, agentDirectory string) Option {
 return func(api *API) {
 api.ownerName = owner
 api.workspaceName = workspace
 api.parentAgent = parentAgent
 api.agentDirectory = agentDirectory
 }
 }

 }
 }

 // WithFileSystem sets the file system used for discovering projects.
 func WithFileSystem(fileSystem afero.Fs) Option {
 return func(api *API) {
 api.fs = fileSystem
 }
 }

 // ScriptLogger is an interface for sending devcontainer logs to the
 // controlplane.
 type ScriptLogger interface {
 api.watcher = watcher.NewNoop()
 }
 }
 if api.fs == nil {
 api.fs = afero.NewOsFs()
 }
 if api.subAgentClient.Load() == nil {
 var c SubAgentClient = noopSubAgentClient{}
 api.subAgentClient.Store(&c)
 api.watcherDone = make(chan struct{})
 api.updaterDone = make(chan struct{})

 go func() {
 if err := api.discoverDevcontainerProjects(); err != nil {
 api.logger.Error(api.ctx, "discovering dev container projects", slog.Error(err))
 }
 }()

 go api.watcherLoop()
 go api.updaterLoop()
 }

 func (api *API) discoverDevcontainerProjects() error {
 isGitProject, err := afero.DirExists(api.fs, filepath.Join(api.agentDirectory, "/.git"))
 if err != nil {
 return xerrors.Errorf(".git dir exists: %w", err)
 }

 // If the agent directory is a git project, we'll search
 // the project for any `.devcontainer/devcontainer.json`
 // files.
 if isGitProject {
 return api.discoverDevcontainersInProject(api.agentDirectory)
 }

 // The agent directory is _not_ a git project, so we'll
 // search the top level of the agent directory for any
 // git projects, and search those.
 entries, err := afero.ReadDir(api.fs, api.agentDirectory)
 if err != nil {
 return xerrors.Errorf("read agent directory: %w", err)
 }

 for _, entry := range entries {
 if !entry.IsDir() {
 continue
 }

 isGitProject, err = afero.DirExists(api.fs, filepath.Join(api.agentDirectory, entry.Name(), ".git"))
 if err != nil {
 return xerrors.Errorf(".git dir exists: %w", err)
 }

 // If this directory is a git project, we'll search
 // it for any `.devcontainer/devcontainer.json` files.
 if isGitProject {
 if err := api.discoverDevcontainersInProject(filepath.Join(api.agentDirectory, entry.Name())); err != nil {
 return err
 }
 }
 }

 return nil
 }

 func (api *API) discoverDevcontainersInProject(projectPath string) error {
 devcontainerConfigPaths := []string{
 "/.devcontainer/devcontainer.json",
 "/.devcontainer.json",
 }

 return afero.Walk(api.fs, projectPath, func(path string, info fs.FileInfo, _ error) error {
 if info.IsDir() {
 return nil
 }

 for _, relativeConfigPath := range devcontainerConfigPaths {
 if !strings.HasSuffix(path, relativeConfigPath) {
 continue
 }

 workspaceFolder := strings.TrimSuffix(path, relativeConfigPath)

 api.logger.Debug(api.ctx, "discovered dev container project", slog.F("workspace_folder", workspaceFolder))

 api.mu.Lock()
 if _, found := api.knownDevcontainers[workspaceFolder]; !found {
 api.logger.Debug(api.ctx, "adding dev container project", slog.F("workspace_folder", workspaceFolder))

 dc := codersdk.WorkspaceAgentDevcontainer{
 ID:              uuid.New(),
 Name:            "", // Updated later based on container state.
 WorkspaceFolder: workspaceFolder,
 ConfigPath:      path,
 Status:          "",    // Updated later based on container state.
 Dirty:           false, // Updated later based on config file changes.
 Container:       nil,
 }

 api.knownDevcontainers[workspaceFolder] = dc
 }
 api.mu.Unlock()
 }

 return nil
 })
 }

 func (api *API) watcherLoop() {
 defer close(api.watcherDone)
 defer api.logger.Debug(api.ctx, "watcher loop stopped")
Original file line number	Diff line number	Diff line change
Expand Up		@@ -1168,7 +1168,7 @@ func (a agent) handleManifest(manifestOK checkpoint) func(ctx context.Context,
		// return existing devcontainers but actual container detection
		// and creation will be deferred.
		a.containerAPI.Init(
		agentcontainers.WithManifestInfo(manifest.OwnerName, manifest.WorkspaceName, manifest.AgentName),
		agentcontainers.WithManifestInfo(manifest.OwnerName, manifest.WorkspaceName, manifest.AgentName, manifest.Directory),
		agentcontainers.WithDevcontainers(manifest.Devcontainers, manifest.Scripts),
		agentcontainers.WithSubAgentClient(agentcontainers.NewSubAgentClientFromAPI(a.logger, aAPI)),
		)
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -5,6 +5,7 @@ import (
		"encoding/json"
		"errors"
		"fmt"
		"io/fs"
		"maps"
		"net/http"
		"os"
Expand All		@@ -21,6 +22,7 @@ import (
		"github.com/fsnotify/fsnotify"
		"github.com/go-chi/chi/v5"
		"github.com/google/uuid"
		"github.com/spf13/afero"
		"golang.org/x/xerrors"

		"cdr.dev/slog"
Expand DownExpand Up		@@ -60,6 +62,7 @@ type API struct {
		updateInterval time.Duration // Interval for periodic container updates.
		logger slog.Logger
		watcher watcher.Watcher
		fs afero.Fs
		execer agentexec.Execer
		commandEnv CommandEnv
		ccli ContainerCLI
Expand All		@@ -71,9 +74,10 @@ type API struct {
		subAgentURL string
		subAgentEnv []string

		ownerName string
		workspaceName string
		parentAgent string
		ownerName string
		workspaceName string
		parentAgent string
		agentDirectory string

		mu sync.RWMutex // Protects the following fields.
		initDone chan struct{} // Closed by Init.
Expand DownExpand Up		@@ -192,11 +196,12 @@ func WithSubAgentEnv(env ...string) Option {

		// WithManifestInfo sets the owner name, and workspace name
		// for the sub-agent.
		func WithManifestInfo(owner, workspace, parentAgent string) Option {
		func WithManifestInfo(owner, workspace, parentAgent, agentDirectory string) Option {
		return func(api *API) {
		api.ownerName = owner
		api.workspaceName = workspace
		api.parentAgent = parentAgent
		api.agentDirectory = agentDirectory
		}
		}

Expand DownExpand Up		@@ -261,6 +266,13 @@ func WithWatcher(w watcher.Watcher) Option {
		}
		}

		// WithFileSystem sets the file system used for discovering projects.
		func WithFileSystem(fileSystem afero.Fs) Option {
		return func(api *API) {
		api.fs = fileSystem
		}
		}

		// ScriptLogger is an interface for sending devcontainer logs to the
		// controlplane.
		type ScriptLogger interface {
Expand DownExpand Up		@@ -331,6 +343,9 @@ func NewAPI(logger slog.Logger, options ...Option) *API {
		api.watcher = watcher.NewNoop()
		}
		}
		if api.fs == nil {
		api.fs = afero.NewOsFs()
		}
		if api.subAgentClient.Load() == nil {
		var c SubAgentClient = noopSubAgentClient{}
		api.subAgentClient.Store(&c)
Expand DownExpand Up		@@ -375,10 +390,102 @@ func (api *API) Start() {
		api.watcherDone = make(chan struct{})
		api.updaterDone = make(chan struct{})

		go func() {
		if err := api.discoverDevcontainerProjects(); err != nil {
		api.logger.Error(api.ctx, "discovering dev container projects", slog.Error(err))
		}
		}()

		go api.watcherLoop()
		go api.updaterLoop()
		}

		func (api *API) discoverDevcontainerProjects() error {
		isGitProject, err := afero.DirExists(api.fs, filepath.Join(api.agentDirectory, "/.git"))
		if err != nil {
		return xerrors.Errorf(".git dir exists: %w", err)
		}

		// If the agent directory is a git project, we'll search
		// the project for any `.devcontainer/devcontainer.json`
		// files.
		if isGitProject {
		return api.discoverDevcontainersInProject(api.agentDirectory)
		}

		// The agent directory is _not_ a git project, so we'll
		// search the top level of the agent directory for any
		// git projects, and search those.
		entries, err := afero.ReadDir(api.fs, api.agentDirectory)
		if err != nil {
		return xerrors.Errorf("read agent directory: %w", err)
		}

		for _, entry := range entries {
		if !entry.IsDir() {
		continue
		}

		isGitProject, err = afero.DirExists(api.fs, filepath.Join(api.agentDirectory, entry.Name(), ".git"))
		if err != nil {
		return xerrors.Errorf(".git dir exists: %w", err)
		}

		// If this directory is a git project, we'll search
		// it for any `.devcontainer/devcontainer.json` files.
		if isGitProject {
		if err := api.discoverDevcontainersInProject(filepath.Join(api.agentDirectory, entry.Name())); err != nil {
		return err
		}
		}
		}

		return nil
		}

		func (api *API) discoverDevcontainersInProject(projectPath string) error {
		devcontainerConfigPaths := []string{
		"/.devcontainer/devcontainer.json",
		"/.devcontainer.json",
		}

		return afero.Walk(api.fs, projectPath, func(path string, info fs.FileInfo, _ error) error {
		if info.IsDir() {
		return nil
		}

		for _, relativeConfigPath := range devcontainerConfigPaths {
		if !strings.HasSuffix(path, relativeConfigPath) {
		continue
		}

		workspaceFolder := strings.TrimSuffix(path, relativeConfigPath)

		api.logger.Debug(api.ctx, "discovered dev container project", slog.F("workspace_folder", workspaceFolder))

		api.mu.Lock()
		if _, found := api.knownDevcontainers[workspaceFolder]; !found {
		api.logger.Debug(api.ctx, "adding dev container project", slog.F("workspace_folder", workspaceFolder))

		dc := codersdk.WorkspaceAgentDevcontainer{
		ID: uuid.New(),
		Name: "", // Updated later based on container state.
		WorkspaceFolder: workspaceFolder,
		ConfigPath: path,
		Status: "", // Updated later based on container state.
		Dirty: false, // Updated later based on config file changes.
		Container: nil,
		}

		api.knownDevcontainers[workspaceFolder] = dc
		}
		api.mu.Unlock()
		}

		return nil
		})
		}

		func (api *API) watcherLoop() {
		defer close(api.watcherDone)
		defer api.logger.Debug(api.ctx, "watcher loop stopped")
Expand Down