Add HTTP route create params to function create command

This allows users to add --method and --url params to their "fission
fn create" command line.  It sets up the route to call the latest
version of the function; user can edit the route with the "fission
route update" command, if they want to.

fission/function.go

@@ -23,6 +23,7 @@ import (
 	"os/exec"
 	"text/tabwriter"
 
+	"github.com/satori/go.uuid"
 	"github.com/urfave/cli"
 
 	"github.com/platform9/fission"
@@ -59,6 +60,31 @@ func fnCreate(c *cli.Context) error {
 	checkErr(err, "create function")
 
 	fmt.Printf("function '%v' created\n", fnName)
+
+	// Allow the user to specify an HTTP trigger while creating a function.
+	triggerUrl := c.String("url")
+	if len(triggerUrl) == 0 {
+		return nil
+	}
+	method := c.String("method")
+	if len(method) == 0 {
+		method = "GET"
+	}
+	triggerName := uuid.NewV4().String()
+	ht := &fission.HTTPTrigger{
+		Metadata: fission.Metadata{
+			Name: triggerName,
+		},
+		UrlPattern: triggerUrl,
+		Method:     getMethod(method),
+		Function: fission.Metadata{
+			Name: fnName,
+		},
+	}
+	_, err = client.HTTPTriggerCreate(ht)
+	checkErr(err, "create HTTP trigger")
+	fmt.Printf("route created: %v %v -> %v\n", method, triggerUrl, fnName)
+
 	return err
 }
 

fission/main.go

@@ -31,13 +31,17 @@ func main() {
 		cli.StringFlag{Name: "server", Usage: "Fission server URL", EnvVar: "FISSION_URL"},
 	}
 
+	// trigger method and url flags (used in function and route CLIs)
+	htMethodFlag := cli.StringFlag{Name: "method", Usage: "HTTP Method: GET|POST|PUT|DELETE|HEAD; defaults to GET"}
+	htUrlFlag := cli.StringFlag{Name: "url", Usage: "URL pattern (See gorilla/mux supported patterns)"}
+
 	// functions
 	fnNameFlag := cli.StringFlag{Name: "name", Usage: "function name"}
 	fnEnvNameFlag := cli.StringFlag{Name: "env", Usage: "environment name for function"}
 	fnCodeFlag := cli.StringFlag{Name: "code", Usage: "file containing source code, or - for stdin"}
 	fnUidFlag := cli.StringFlag{Name: "uid", Usage: "function uid, optional (use latest if unspecified)"}
 	fnSubcommands := []cli.Command{
-		{Name: "create", Usage: "Create new function", Flags: []cli.Flag{fnNameFlag, fnEnvNameFlag, fnCodeFlag}, Action: fnCreate},
+		{Name: "create", Usage: "Create new function (and optionally, an HTTP route to it)", Flags: []cli.Flag{fnNameFlag, fnEnvNameFlag, fnCodeFlag, htUrlFlag, htMethodFlag}, Action: fnCreate},
 		{Name: "get", Usage: "Get function source code", Flags: []cli.Flag{fnNameFlag, fnUidFlag}, Action: fnGet},
 		{Name: "edit", Usage: "Edit function source code in $EDITOR", Flags: []cli.Flag{fnNameFlag, fnUidFlag}, Action: fnEdit},
 		{Name: "getmeta", Usage: "Get function metadata", Flags: []cli.Flag{fnNameFlag, fnUidFlag}, Action: fnGetMeta},
@@ -48,8 +52,6 @@ func main() {
 
 	// httptriggers
 	htNameFlag := cli.StringFlag{Name: "name", Usage: "HTTP Trigger name"}
-	htMethodFlag := cli.StringFlag{Name: "method", Usage: "HTTP Method: GET|POST|PUT|DELETE|HEAD; defaults to GET"}
-	htUrlFlag := cli.StringFlag{Name: "url", Usage: "URL pattern (See gorilla/mux supported patterns)"}
 	htFnNameFlag := cli.StringFlag{Name: "function", Usage: "Function name"}
 	htFnUidFlag := cli.StringFlag{Name: "uid", Usage: "Function UID (optional; uses latest if unspecified)"}
 	htSubcommands := []cli.Command{