Function instanceMetadataTemplatesGet

cmd/incusd/instance_metadata.go:430–547

swagger:operation GET /1.0/instances/{name}/metadata/templates instances instance_metadata_templates_get Get the template file names or a specific If no path specified, returns a list of template file names. If a path is specified, returns the file content. --- produces: - application/jso

(d *Daemon, r *http.Request)

//	  "500":
//	    $ref: "#/responses/InternalServerError"
func instanceMetadataTemplatesGet(d *Daemon, r *http.Request) response.Response {
	s := d.State()

	projectName := request.ProjectParam(r)
	name, err := pathVar(r, "name")
	if err != nil {
		return response.SmartError(err)
	}

	if internalInstance.IsSnapshot(name) {
		return response.BadRequest(errors.New("Invalid instance name"))
	}

	// Handle requests targeted to a container on a different node
	resp, err := forwardedResponseIfInstanceIsRemote(s, r, projectName, name)
	if err != nil {
		return response.SmartError(err)
	}

	if resp != nil {
		return resp
	}

	// Load the container
	c, err := instance.LoadByProjectAndName(s, projectName, name)
	if err != nil {
		return response.SmartError(err)
	}

	// Start the storage if needed
	pool, err := storagePools.LoadByInstance(s, c)
	if err != nil {
		return response.SmartError(err)
	}

	_, err = storagePools.InstanceMount(pool, c, nil)
	if err != nil {
		return response.SmartError(err)
	}

	defer logger.WarnOnError(func() error { return storagePools.InstanceUnmount(pool, c, nil) }, "Failed to unmount instance")

	// Confine all template access to the instance directory.
	root, err := os.OpenRoot(c.Path())
	if err != nil {
		return response.SmartError(err)
	}

	defer logger.WarnOnError(root.Close, "Failed to close instance root")

	// Look at the request
	templateName := r.FormValue("path")
	if templateName == "" {
		templates := []string{}

		// List templates
		entries, err := fs.ReadDir(root.FS(), "templates")
		if err != nil {