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routes.go
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routes.go
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package main
import (
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"os"
"path"
"strings"
"text/tabwriter"
functions "github.com/iron-io/functions_go"
"github.com/urfave/cli"
"golang.org/x/crypto/ssh/terminal"
)
type routesCmd struct {
*functions.RoutesApi
}
func routes() cli.Command {
r := routesCmd{RoutesApi: functions.NewRoutesApi()}
return cli.Command{
Name: "routes",
Usage: "list routes",
ArgsUsage: "fnctl routes",
Action: r.list,
Subcommands: []cli.Command{
{
Name: "call",
Usage: "call a route",
ArgsUsage: "appName /path",
Action: r.call,
Flags: runflags(),
},
{
Name: "create",
Usage: "create a route",
ArgsUsage: "appName /path image/name",
Action: r.create,
Flags: []cli.Flag{
cli.Int64Flag{
Name: "memory",
Usage: "memory in MiB",
Value: 128,
},
cli.StringFlag{
Name: "type",
Usage: "route type - sync or async",
Value: "sync",
},
cli.StringSliceFlag{
Name: "config",
Usage: "route configuration",
},
},
},
{
Name: "delete",
Usage: "delete a route",
ArgsUsage: "appName /path",
Action: r.delete,
},
{
Name: "config",
Usage: "operate a route configuration set",
Action: r.configList,
Flags: []cli.Flag{
cli.BoolFlag{
Name: "shell",
Usage: "output in shell format",
},
cli.BoolFlag{
Name: "json",
Usage: "output in JSON format",
},
},
Subcommands: []cli.Command{
{
Name: "set",
Description: "store a configuration key for this route",
Usage: "<app> <key> <value>",
Action: r.configSet,
},
{
Name: "unset",
Description: "remove a configuration key for this route",
Usage: "<app> <key> <value>",
Action: r.configUnset,
},
},
},
},
}
}
func call() cli.Command {
r := routesCmd{RoutesApi: functions.NewRoutesApi()}
return cli.Command{
Name: "call",
Usage: "call a remote function",
ArgsUsage: "appName /path",
Flags: runflags(),
Action: r.call,
}
}
func (a *routesCmd) list(c *cli.Context) error {
if c.Args().First() == "" {
return errors.New("error: routes listing takes one argument, an app name")
}
if err := resetBasePath(&a.Configuration); err != nil {
return fmt.Errorf("error setting endpoint: %v", err)
}
appName := c.Args().Get(0)
wrapper, _, err := a.AppsAppRoutesGet(appName)
if err != nil {
return fmt.Errorf("error getting routes: %v", err)
}
baseURL, err := url.Parse(a.Configuration.BasePath)
if err != nil {
return fmt.Errorf("error parsing base path: %v", err)
}
w := tabwriter.NewWriter(os.Stdout, 0, 8, 0, '\t', 0)
fmt.Fprint(w, "path", "\t", "image", "\t", "endpoint", "\n")
for _, route := range wrapper.Routes {
u, err := url.Parse("../")
u.Path = path.Join(u.Path, "r", appName, route.Path)
if err != nil {
return fmt.Errorf("error parsing functions route path: %v", err)
}
fmt.Fprint(w, route.Path, "\t", route.Image, "\t", baseURL.ResolveReference(u).String(), "\n")
}
w.Flush()
return nil
}
func (a *routesCmd) call(c *cli.Context) error {
if c.Args().Get(0) == "" || c.Args().Get(1) == "" {
return errors.New("error: routes listing takes three arguments: an app name and a route")
}
if err := resetBasePath(&a.Configuration); err != nil {
return fmt.Errorf("error setting endpoint: %v", err)
}
baseURL, err := url.Parse(a.Configuration.BasePath)
if err != nil {
return fmt.Errorf("error parsing base path: %v", err)
}
appName := c.Args().Get(0)
route := c.Args().Get(1)
u, err := url.Parse("../")
u.Path = path.Join(u.Path, "r", appName, route)
var content io.Reader
if !terminal.IsTerminal(int(os.Stdin.Fd())) {
content = os.Stdin
}
req, err := http.NewRequest("POST", baseURL.ResolveReference(u).String(), content)
if err != nil {
return fmt.Errorf("error running route: %v", err)
}
req.Header.Set("Content-Type", "application/json")
envAsHeader(req, c.StringSlice("e"))
resp, err := http.DefaultClient.Do(req)
if err != nil {
return fmt.Errorf("error running route: %v", err)
}
io.Copy(os.Stdout, resp.Body)
return nil
}
func envAsHeader(req *http.Request, selectedEnv []string) {
detectedEnv := os.Environ()
if len(selectedEnv) > 0 {
detectedEnv = selectedEnv
}
for _, e := range detectedEnv {
kv := strings.Split(e, "=")
name := kv[0]
req.Header.Set(name, os.Getenv(name))
}
}
func (a *routesCmd) create(c *cli.Context) error {
if c.Args().Get(0) == "" || c.Args().Get(1) == "" {
return errors.New("error: routes creation takes three arguments: an app name, a route path and an image")
}
if err := resetBasePath(&a.Configuration); err != nil {
return fmt.Errorf("error setting endpoint: %v", err)
}
appName := c.Args().Get(0)
route := c.Args().Get(1)
image := c.Args().Get(2)
if image == "" {
ff, err := findFuncfile()
if err != nil {
if _, ok := err.(*notFoundError); ok {
return errors.New("error: image name is missing or no function file found")
} else {
return err
}
}
image = ff.FullName()
}
body := functions.RouteWrapper{
Route: functions.Route{
AppName: appName,
Path: route,
Image: image,
Memory: c.Int64("memory"),
Type_: c.String("type"),
Config: extractEnvConfig(c.StringSlice("config")),
},
}
wrapper, _, err := a.AppsAppRoutesPost(appName, body)
if err != nil {
return fmt.Errorf("error creating route: %v", err)
}
if wrapper.Route.Path == "" || wrapper.Route.Image == "" {
return fmt.Errorf("could not create this route (%s at %s), check if route path is correct", route, appName)
}
fmt.Println(wrapper.Route.Path, "created with", wrapper.Route.Image)
return nil
}
func (a *routesCmd) delete(c *cli.Context) error {
if c.Args().Get(0) == "" || c.Args().Get(1) == "" {
return errors.New("error: routes listing takes three arguments: an app name and a path")
}
if err := resetBasePath(&a.Configuration); err != nil {
return fmt.Errorf("error setting endpoint: %v", err)
}
appName := c.Args().Get(0)
route := c.Args().Get(1)
_, err := a.AppsAppRoutesRouteDelete(appName, route)
if err != nil {
return fmt.Errorf("error deleting route: %v", err)
}
fmt.Println(route, "deleted")
return nil
}
func (a *routesCmd) configList(c *cli.Context) error {
if c.Args().Get(0) == "" || c.Args().Get(1) == "" {
return errors.New("error: route configuration description takes two arguments: an app name and a route")
}
if err := resetBasePath(&a.Configuration); err != nil {
return fmt.Errorf("error setting endpoint: %v", err)
}
appName := c.Args().Get(0)
route := c.Args().Get(1)
wrapper, _, err := a.AppsAppRoutesRouteGet(appName, route)
if err != nil {
return fmt.Errorf("error loading route information: %v", err)
}
config := wrapper.Route.Config
if len(config) == 0 {
return errors.New("this route has no configurations")
}
if c.Bool("json") {
if err := json.NewEncoder(os.Stdout).Encode(config); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
} else if c.Bool("shell") {
for k, v := range config {
fmt.Print("export ", k, "=", v, "\n")
}
} else {
fmt.Println(wrapper.Route.AppName, wrapper.Route.Path, "configuration:")
w := tabwriter.NewWriter(os.Stdout, 0, 8, 1, ' ', 0)
for k, v := range config {
fmt.Fprint(w, k, ":\t", v, "\n")
}
w.Flush()
}
return nil
}
func (a *routesCmd) configSet(c *cli.Context) error {
if c.Args().Get(0) == "" || c.Args().Get(1) == "" || c.Args().Get(2) == "" {
return errors.New("error: route configuration setting takes four arguments: an app name, a route, a key and a value")
}
if err := resetBasePath(&a.Configuration); err != nil {
return fmt.Errorf("error setting endpoint: %v", err)
}
appName := c.Args().Get(0)
route := c.Args().Get(1)
key := c.Args().Get(2)
value := c.Args().Get(3)
wrapper, _, err := a.AppsAppRoutesRouteGet(appName, route)
if err != nil {
return fmt.Errorf("error creating app: %v", err)
}
config := wrapper.Route.Config
if config == nil {
config = make(map[string]string)
}
config[key] = value
wrapper.Route.Config = config
if _, err := a.AppsAppRoutesRouteDelete(appName, route); err != nil {
return fmt.Errorf("error deleting to force update route: %v", err)
}
if _, _, err := a.AppsAppRoutesPost(appName, *wrapper); err != nil {
return fmt.Errorf("error updating route configuration: %v", err)
}
fmt.Println(wrapper.Route.AppName, wrapper.Route.Path, "updated", key, "with", value)
return nil
}
func (a *routesCmd) configUnset(c *cli.Context) error {
if c.Args().Get(0) == "" || c.Args().Get(1) == "" || c.Args().Get(2) == "" {
return errors.New("error: route configuration setting takes four arguments: an app name, a route and a key")
}
if err := resetBasePath(&a.Configuration); err != nil {
return fmt.Errorf("error setting endpoint: %v", err)
}
appName := c.Args().Get(0)
route := c.Args().Get(1)
key := c.Args().Get(2)
wrapper, _, err := a.AppsAppRoutesRouteGet(appName, route)
if err != nil {
return fmt.Errorf("error creating app: %v", err)
}
config := wrapper.Route.Config
if config == nil {
config = make(map[string]string)
}
if _, ok := config[key]; !ok {
return fmt.Errorf("configuration key %s not found", key)
}
delete(config, key)
wrapper.Route.Config = config
if _, err := a.AppsAppRoutesRouteDelete(appName, route); err != nil {
return fmt.Errorf("error deleting to force update route: %v", err)
}
if _, _, err := a.AppsAppRoutesPost(appName, *wrapper); err != nil {
return fmt.Errorf("error updating route configuration: %v", err)
}
fmt.Println(wrapper.Route.AppName, wrapper.Route.Path, "removed", key)
return nil
}