feat main: Initial program implementation & example

main.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"os"
+	"fmt"
+
+	"github.com/tazjin/kontemplate/context"
+	"github.com/tazjin/kontemplate/templater"
+)
+
+func main() {
+	args := os.Args[1:]
+	if len(args) == 0 {
+		fmt.Fprintln(os.Stderr, "Usage: kontemplate <cluster-config>")
+		os.Exit(1)
+	}
+
+	c, err := context.LoadContextFromFile(os.Args[1])
+
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "%v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Fprintf(os.Stderr,"Applying cluster %s\n", c.Name)
+
+	for _, rs := range c.ResourceSets {
+		fmt.Fprintf(os.Stderr,"Applying resource %s with values %v\n", rs.Name, rs.Values)
+		resources, err := templater.LoadAndPrepareTemplates(c)
+
+		if err != nil {
+			fmt.Println(err)
+		}
+
+		for _, r := range resources {
+			fmt.Print(r)
+		}
+	}
+}