Upgrade Kubeless version to 0.6.0. Add golang example

Author: Andres

.travis.yml

@@ -10,7 +10,7 @@ services:
   - docker
 env:
   global:
-    - KUBELESS_VERSION: v0.5.0
+    - KUBELESS_VERSION: v0.6.0
     - MINIKUBE_VERSION: v0.25.2
     - REPO_DOMAIN: serverless
     - REPO_NAME: serverless-kubeless

examples/post-go/README.md

@@ -0,0 +1,13 @@
+# Simple Hello World function
+
+This function returns the given data capitalizing the first word.
+
+```console
+$ npm install
+$ serverless deploy
+$ serverless invoke -f go-echo -l --data 'hello!'
+Serverless: Calling function: go-echo...
+--------------------------------------------------------------------
+hello!
+$ serverless remove
+```

examples/post-go/handler.go

@@ -0,0 +1,13 @@
+package kubeless
+
+import (
+	"fmt"
+
+	"github.com/kubeless/kubeless/pkg/functions"
+)
+
+// Handler sample function with data
+func Handler(event functions.Event, context functions.Context) (string, error) {
+	fmt.Println(event)
+	return event.Data, nil
+}

examples/post-go/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "go-echo",
+  "version": "1.0.0",
+  "description": "Example function for serverless kubeless",
+  "dependencies": {
+    "serverless-kubeless": "^0.4.0"
+  },
+  "devDependencies": {},
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "Apache-2.0"
+}

examples/post-go/serverless.yml

@@ -0,0 +1,12 @@
+service: go-echo
+
+provider:
+  name: kubeless
+  runtime: go1.10
+
+plugins:
+  - serverless-kubeless
+
+functions:
+  go-echo:
+    handler: handler.Handler