Functions have access to secrets/configmaps specified by the user (#399)

This commit solves part of the issue #52 , functions are able to access secrets/configmaps specified by the user. For now, CLI only accept one secret/configmap. For advanced users, it will be able to use YAML to declare multiple secrets/configmaps in later changes.

fission/function.go

@@ -126,6 +126,20 @@ func fnCreate(c *cli.Context) error {
 	var pkgMetadata *metav1.ObjectMeta
 	var envName string
 
+	secretName := c.String("secret")
+	cfgMapName := c.String("configmap")
+
+	secretNameSpace := c.String("secretNamespace")
+	cfgMapNameSpace := c.String("configmapNamespace")
+
+	if len(secretNameSpace) == 0 && len(secretName) > 0 {
+		secretNameSpace = metav1.NamespaceDefault
+	}
+
+	if len(cfgMapNameSpace) == 0 && len(cfgMapName) > 0 {
+		cfgMapNameSpace = metav1.NamespaceDefault
+	}
+
 	if len(pkgName) > 0 {
 		// use existing package
 		pkg, err := client.PackageGet(&metav1.ObjectMeta{
@@ -204,11 +218,29 @@ func fnCreate(c *cli.Context) error {
 					ResourceVersion: pkgMetadata.ResourceVersion,
 				},
 			},
+			Secrets:        []fission.SecretReference{},
+			ConfigMaps:     []fission.ConfigMapReference{},
 			Resources:      resourceReq,
 			InvokeStrategy: invokeStrategy,
 		},
 	}
 
+	if len(secretName) > 0 {
+		newSecret := fission.SecretReference{
+			Name:      secretName,
+			Namespace: secretNameSpace,
+		}
+		function.Spec.Secrets = append(function.Spec.Secrets, newSecret)
+	}
+
+	if len(cfgMapName) > 0 {
+		newCfgMap := fission.ConfigMapReference{
+			Name:      cfgMapName,
+			Namespace: cfgMapNameSpace,
+		}
+		function.Spec.ConfigMaps = append(function.Spec.ConfigMaps, newCfgMap)
+	}
+
 	_, err = client.FunctionCreate(function)
 	checkErr(err, "create function")
 
@@ -338,7 +370,6 @@ func fnUpdate(c *cli.Context) error {
 	if len(entrypoint) > 0 {
 		function.Spec.Package.FunctionName = entrypoint
 	}
-
 	if len(pkgName) == 0 {
 		pkgName = function.Spec.Package.PackageRef.Name
 	}

fission/main.go

@@ -61,12 +61,16 @@ func main() {
 	fnHeaderFlag := cli.StringSliceFlag{Name: "header, H", Usage: "request headers"}
 	fnEntryPointFlag := cli.StringFlag{Name: "entrypoint", Usage: "entry point for environment v2 to load with"}
 	fnBuildCmdFlag := cli.StringFlag{Name: "buildcmd", Usage: "build command for builder to run with"}
+	fnSecretFlag := cli.StringFlag{Name: "secret", Usage: "function access to secret"}
+	fnSecretnsFlag := cli.StringFlag{Name: "secretNamespace", Usage: "namespace of secret"}
+	fnCfgMapFlag := cli.StringFlag{Name: "configmap", Usage: "function access to configmap"}
+	fnCfgMapnsFlag := cli.StringFlag{Name: "configmapNamespace", Usage: "namespace of configmap"}
 	fnLogCountFlag := cli.StringFlag{Name: "recordcount", Usage: "the n most recent log records"}
 	fnForceFlag := cli.BoolFlag{Name: "force", Usage: "Force update a package even if it is used by one or more functions"}
 	fnExecutorTypeFlag := cli.StringFlag{Name: "executortype", Usage: "Executor type for execution; one of 'poolmgr', 'newdeploy' defaults to 'poolmgr'"}
 
 	fnSubcommands := []cli.Command{
-		{Name: "create", Usage: "Create new function (and optionally, an HTTP route to it)", Flags: []cli.Flag{fnNameFlag, fnEnvNameFlag, fnCodeFlag, fnPackageFlag, fnSrcArchiveFlag, fnDeployArchiveFlag, fnEntryPointFlag, fnBuildCmdFlag, fnPkgNameFlag, htUrlFlag, htMethodFlag, minCpu, maxCpu, minMem, maxMem, minScale, maxScale, fnExecutorTypeFlag, targetcpu}, Action: fnCreate},
+		{Name: "create", Usage: "Create new function (and optionally, an HTTP route to it)", Flags: []cli.Flag{fnNameFlag, fnEnvNameFlag, fnCodeFlag, fnPackageFlag, fnSrcArchiveFlag, fnDeployArchiveFlag, fnEntryPointFlag, fnBuildCmdFlag, fnPkgNameFlag, htUrlFlag, htMethodFlag, minCpu, maxCpu, minMem, maxMem, minScale, maxScale, fnExecutorTypeFlag, targetcpu, fnCfgMapFlag, fnSecretFlag, fnSecretnsFlag, fnCfgMapnsFlag}, Action: fnCreate},
 		{Name: "get", Usage: "Get function source code", Flags: []cli.Flag{fnNameFlag}, Action: fnGet},
 		{Name: "getmeta", Usage: "Get function metadata", Flags: []cli.Flag{fnNameFlag}, Action: fnGetMeta},
 		{Name: "update", Usage: "Update function source code", Flags: []cli.Flag{fnNameFlag, fnEnvNameFlag, fnCodeFlag, fnPackageFlag, fnSrcArchiveFlag, fnDeployArchiveFlag, fnEntryPointFlag, fnPkgNameFlag, fnBuildCmdFlag, fnForceFlag, minCpu, maxCpu, minMem, maxMem, minScale, maxScale, fnExecutorTypeFlag, targetcpu}, Action: fnUpdate},