Added mizu install template (#884)

cli/bucket/provider.go

@@ -0,0 +1,42 @@
+package bucket
+
+import (
+	"fmt"
+	"github.com/up9inc/mizu/cli/utils"
+	"io/ioutil"
+	"net/http"
+	"time"
+)
+
+type Provider struct {
+	url     string
+	client  *http.Client
+}
+
+const DefaultTimeout = 2 * time.Second
+
+func NewProvider(url string, timeout time.Duration) *Provider {
+	return &Provider{
+		url:     url,
+		client: &http.Client{
+			Timeout: timeout,
+		},
+	}
+}
+
+func (provider *Provider) GetInstallTemplate(templateName string) (string, error) {
+	url := fmt.Sprintf("%s/%v", provider.url, templateName)
+	response, err := utils.Get(url, provider.client)
+	if err != nil {
+		return "", err
+	}
+
+	defer response.Body.Close()
+
+	installTemplate, err := ioutil.ReadAll(response.Body)
+	if err != nil {
+		return "", err
+	}
+
+	return string(installTemplate), nil
+}