├── Dockerfile
├── README.md
├── deployment.yaml
├── main.go
├── main_test.go
└── service.yaml


/Dockerfile:
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 1 | FROM golang:1.16.4-buster AS builder
 2 | 
 3 | ARG VERSION=dev
 4 | 
 5 | WORKDIR /go/src/app
 6 | COPY main.go .
 7 | RUN go build -o main -ldflags=-X=main.version=${VERSION} main.go 
 8 | 
 9 | FROM debian:buster-slim
10 | COPY --from=builder /go/src/app/main /go/bin/main
11 | ENV PATH="/go/bin:${PATH}"
12 | CMD ["main"]
13 | 


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/README.md:
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1 | # Golang-CICD-Tutorial!
2 | This is a simple CI/CD tutorial using [Harness](https://www.harness.io/). 
3 | 


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/deployment.yaml:
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 1 | apiVersion: apps/v1
 2 | kind: Deployment
 3 | metadata:
 4 |   name: go-app-deployment
 5 | spec:
 6 |   replicas: 1
 7 |   selector:
 8 |     matchLabels:
 9 |       app: go-app
10 |   template:
11 |     metadata:
12 |       labels:
13 |         app: go-app
14 |     spec:
15 |       containers:
16 |       - name: go-app
17 |         image: pavansa/golang-hello-world:latest
18 |         ports:
19 |         - containerPort: 8080
20 |         env:
21 |         - name: PORT
22 |           value: "8080"
23 | 


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/main.go:
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 1 | package main
 2 | 
 3 | import (
 4 |     "fmt"
 5 |     "log"
 6 |     "net/http"
 7 | )
 8 | 
 9 | func homePage(w http.ResponseWriter, r *http.Request) {
10 |     fmt.Fprintf(w, "Home Page")
11 | }
12 | 
13 | func wsEndpoint(w http.ResponseWriter, r *http.Request) {
14 |     fmt.Fprintf(w, "Hello World")
15 | }
16 | 
17 | func setupRoutes() {
18 |     http.HandleFunc("/", homePage)
19 |     http.HandleFunc("/ws", wsEndpoint)
20 | }
21 | 
22 | func main() {
23 |     fmt.Println("Hello World")
24 |     setupRoutes()
25 |     log.Fatal(http.ListenAndServe(":8080", nil))
26 | }


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/main_test.go:
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 1 | package main
 2 | 
 3 | import (
 4 |     "net/http"
 5 |     "net/http/httptest"
 6 |     "testing"
 7 | )
 8 | 
 9 | func TestHomePage(t *testing.T) {
10 |     req, err := http.NewRequest("GET", "/", nil)
11 |     if err != nil {
12 |         t.Fatal(err)
13 |     }
14 |     rr := httptest.NewRecorder()
15 |     handler := http.HandlerFunc(homePage)
16 |     handler.ServeHTTP(rr, req)
17 |     if status := rr.Code; status != http.StatusOK {
18 |         t.Errorf("handler returned wrong status code: got %v want %v",
19 |             status, http.StatusOK)
20 |     }
21 |     if rr.Body.String() != "Home Page" {
22 |         t.Errorf("handler returned unexpected body: got %v want %v",
23 |             rr.Body.String(), "Home Page")
24 |     }
25 | }
26 | 
27 | func TestWsEndpoint(t *testing.T) {
28 |     req, err := http.NewRequest("GET", "/ws", nil)
29 |     if err != nil {
30 |         t.Fatal(err)
31 |     }
32 |     rr := httptest.NewRecorder()
33 |     handler := http.HandlerFunc(wsEndpoint)
34 |     handler.ServeHTTP(rr, req)
35 |     if status := rr.Code; status != http.StatusOK {
36 |         t.Errorf("handler returned wrong status code: got %v want %v",
37 |             status, http.StatusOK)
38 |     }
39 |     if rr.Body.String() != "Hello World" {
40 |         t.Errorf("handler returned unexpected body: got %v want %v",
41 |             rr.Body.String(), "Hello World")
42 |     }
43 | }
44 | 


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/service.yaml:
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 1 | apiVersion: v1
 2 | kind: Service
 3 | metadata:
 4 |   name: go-app-service
 5 | spec:
 6 |   selector:
 7 |     app: go-app
 8 |   ports:
 9 |     - name: http
10 |       protocol: TCP
11 |       port: 80
12 |       targetPort: 8080
13 |   type: LoadBalancer
14 | 


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