// Discover the projects available for the stabilished session and take one to use. It
// fails in case of no existing projects, and print out useful information in case of
// multiple projects.
// Requires o.Username to be set.
func (o *LoginOptions) gatherProjectInfo() error {
	me, err := o.whoAmI()
	if err != nil {
		return err
	}

	if o.Username != me.Name {
		return fmt.Errorf("current user, %v, does not match expected user %v", me.Name, o.Username)
	}

	oClient, err := client.New(o.Config)
	if err != nil {
		return err
	}

	projects, err := oClient.Projects().List(labels.Everything(), fields.Everything())
	if err != nil {
		return err
	}

	projectsItems := projects.Items

	switch len(projectsItems) {
	case 0:
		fmt.Fprintf(o.Out, `You don't have any projects. You can try to create a new project, by running

    $ oc new-project <projectname>

`)
		o.Project = o.DefaultNamespace

	case 1:
		o.Project = projectsItems[0].Name
		fmt.Fprintf(o.Out, "Using project %q.\n", o.Project)

	default:
		projects := util.StringSet{}
		for _, project := range projectsItems {
			projects.Insert(project.Name)
		}

		namespace := o.DefaultNamespace
		if !projects.Has(namespace) {
			if namespace != kapi.NamespaceDefault && projects.Has(kapi.NamespaceDefault) {
				namespace = kapi.NamespaceDefault
			} else {
				namespace = projects.List()[0]
			}
		}

		if current, err := oClient.Projects().Get(namespace); err == nil {
			o.Project = current.Name
			fmt.Fprintf(o.Out, "Using project %q.\n", o.Project)
		} else if !kerrors.IsNotFound(err) && !clientcmd.IsForbidden(err) {
			return err
		}

		fmt.Fprintf(o.Out, "\nYou have access to the following projects and can switch between them with 'oc project <projectname>':\n\n")
		for _, p := range projects.List() {
			if o.Project == p {
				fmt.Fprintf(o.Out, "  * %s (current)\n", p)
			} else {
				fmt.Fprintf(o.Out, "  * %s\n", p)
			}
		}
		fmt.Fprintln(o.Out)
	}

	return nil
}
Example #2
0
// RunProject contains all the necessary functionality for the OpenShift cli project command
func (o ProjectOptions) RunProject() error {
	config := o.Config
	clientCfg := o.ClientConfig
	out := o.Out

	// No argument provided, we will just print info
	if len(o.ProjectName) == 0 {
		currentContext := config.Contexts[config.CurrentContext]
		currentProject := currentContext.Namespace

		if len(currentProject) > 0 {
			_, err := o.Client.Projects().Get(currentProject)
			if err != nil {
				if kapierrors.IsNotFound(err) {
					return fmt.Errorf("the project %q specified in your config does not exist.", currentProject)
				}
				if clientcmd.IsForbidden(err) {
					return fmt.Errorf("you do not have rights to view project %q.", currentProject)
				}
				return err
			}

			if config.CurrentContext != currentProject {
				if len(currentProject) > 0 {
					fmt.Fprintf(out, "Using project %q from context named %q on server %q.\n", currentProject, config.CurrentContext, clientCfg.Host)
				} else {
					fmt.Fprintf(out, "Using context named %q on server %q.\n", config.CurrentContext, clientCfg.Host)
				}
			} else {
				fmt.Fprintf(out, "Using project %q on server %q.\n", currentProject, clientCfg.Host)
			}

		} else {
			fmt.Fprintf(out, "No project has been set. Pass a project name to make that the default.\n")
		}
		return nil
	}

	// We have an argument that can be either a context or project
	argument := o.ProjectName

	contextInUse := ""
	namespaceInUse := ""
	contextNameIsGenerated := false

	// Check if argument is an existing context, if so just set it as the context in use.
	// If not a context then we will try to handle it as a project.
	if context, contextExists := config.Contexts[argument]; !o.ProjectOnly && contextExists {
		contextInUse = argument
		namespaceInUse = context.Namespace

		config.CurrentContext = argument

	} else {
		project, err := o.Client.Projects().Get(argument)
		if err != nil {
			if isNotFound, isForbidden := kapierrors.IsNotFound(err), clientcmd.IsForbidden(err); isNotFound || isForbidden {
				var msg string
				if isForbidden {
					msg = fmt.Sprintf("You are not a member of project %q.", argument)
				} else {
					msg = fmt.Sprintf("A project named %q does not exist on %q.", argument, clientCfg.Host)
				}

				projects, err := getProjects(o.Client)
				if err == nil {
					switch len(projects) {
					case 0:
						msg += "\nYou are not a member of any projects. You can request a project to be created with the 'new-project' command."
					case 1:
						msg += fmt.Sprintf("\nYou have one project on this server: %s", api.DisplayNameAndNameForProject(&projects[0]))
					default:
						msg += "\nYour projects are:"
						for _, project := range projects {
							msg += fmt.Sprintf("\n* %s", api.DisplayNameAndNameForProject(&project))
						}
					}
				}

				if hasMultipleServers(config) {
					msg += "\nTo see projects on another server, pass '--server=<server>'."
				}
				return errors.New(msg)
			}
			return err
		}

		kubeconfig, err := cliconfig.CreateConfig(project.Name, o.ClientConfig)
		if err != nil {
			return err
		}

		merged, err := cliconfig.MergeConfig(config, *kubeconfig)
		if err != nil {
			return err
		}
		config = *merged

		namespaceInUse = project.Name
		contextInUse = merged.CurrentContext
		contextNameIsGenerated = true
	}

	if err := kubecmdconfig.ModifyConfig(o.PathOptions, config); err != nil {
		return err
	}

	if contextInUse != namespaceInUse && !contextNameIsGenerated {
		if len(namespaceInUse) > 0 {
			fmt.Fprintf(out, "Now using project %q from context named %q on server %q.\n", namespaceInUse, contextInUse, clientCfg.Host)
		} else {
			fmt.Fprintf(out, "Now using context named %q on server %q.\n", contextInUse, clientCfg.Host)
		}
	} else {
		fmt.Fprintf(out, "Now using project %q on server %q.\n", namespaceInUse, clientCfg.Host)
	}
	return nil
}