initial cli, picked up from kompose-lite

2016-06-29 00:14:42 +07:00
parent 8cfb216d63
commit 9bdc4cf2dd
7 changed files with 1196 additions and 0 deletions
@@ -0,0 +1,110 @@
+/*
+Copyright 2016 Skippbox, Ltd All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package app
+
+import (
+	"bytes"
+	"io/ioutil"
+	"os"
+	"strings"
+	"text/template"
+
+	"github.com/Sirupsen/logrus"
+)
+
+/* Ancilliary helper functions to interface with the commands interface */
+
+/**
+ * Generate Helm Chart configuration
+ */
+func generateHelm(filename string, svcname string) error {
+	type ChartDetails struct {
+		Name string
+	}
+
+	dirName := strings.Replace(filename, ".yml", "", 1)
+	details := ChartDetails{dirName}
+	manifestDir := dirName + string(os.PathSeparator) + "manifests"
+	dir, err := os.Open(dirName)
+
+	/* Setup the initial directories/files */
+	if err == nil {
+		_ = dir.Close()
+	}
+
+	if err != nil {
+		err = os.Mkdir(dirName, 0755)
+		if err != nil {
+			return err
+		}
+
+		err = os.Mkdir(manifestDir, 0755)
+		if err != nil {
+			return err
+		}
+
+		/* Create the readme file */
+		readme := "This chart was created by Kompose\n"
+		err = ioutil.WriteFile(dirName+string(os.PathSeparator)+"README.md", []byte(readme), 0644)
+		if err != nil {
+			return err
+		}
+
+		/* Create the Chart.yaml file */
+		chart := `name: {{.Name}}
+description: A generated Helm Chart from Skippbox Kompose
+version: 0.0.1
+source:
+home:
+`
+
+		t, err := template.New("ChartTmpl").Parse(chart)
+		if err != nil {
+			logrus.Fatalf("Failed to generate Chart.yaml template: %s\n", err)
+		}
+		var chartData bytes.Buffer
+		_ = t.Execute(&chartData, details)
+
+		err = ioutil.WriteFile(dirName+string(os.PathSeparator)+"Chart.yaml", chartData.Bytes(), 0644)
+		if err != nil {
+			return err
+		}
+	}
+
+	/* Copy all yaml files into the newly created manifests directory */
+	infile, err := ioutil.ReadFile(svcname + "-rc.json")
+	if err != nil {
+		logrus.Infof("Error reading %s: %s\n", svcname+"-rc.yaml", err)
+		return err
+	}
+
+	err = ioutil.WriteFile(manifestDir+string(os.PathSeparator)+svcname+"-rc.json", infile, 0644)
+	if err != nil {
+		return err
+	}
+
+	/* The svc file is optional */
+	infile, err = ioutil.ReadFile(svcname + "-svc.json")
+	if err == nil {
+		err = ioutil.WriteFile(manifestDir+string(os.PathSeparator)+svcname+"-svc.json", infile, 0644)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}