plugin: moved default plugins to compile into executable

pkg/generator/dnsmasq.go

@@ -0,0 +1,82 @@
+package generator
+
+import (
+	"fmt"
+	"strings"
+
+	configurator "github.com/OpenCHAMI/configurator/pkg"
+	"github.com/OpenCHAMI/configurator/pkg/util"
+)
+
+type DNSMasq struct{}
+
+func (g *DNSMasq) GetName() string {
+	return "dnsmasq"
+}
+
+func (g *DNSMasq) GetVersion() string {
+	return util.GitCommit()
+}
+
+func (g *DNSMasq) GetDescription() string {
+	return fmt.Sprintf("Configurator generator plugin for '%s'.", g.GetName())
+}
+
+func (g *DNSMasq) Generate(config *configurator.Config, opts ...util.Option) (FileMap, error) {
+	// make sure we have a valid config first
+	if config == nil {
+		return nil, fmt.Errorf("invalid config (config is nil)")
+	}
+
+	// set all the defaults for variables
+	var (
+		params                                     = GetParams(opts...)
+		client                                     = GetClient(params)
+		targetKey                                  = params["target"].(string) // required param
+		target                                     = config.Targets[targetKey]
+		eths      []configurator.EthernetInterface = nil
+		err       error                            = nil
+	)
+
+	// if we have a client, try making the request for the ethernet interfaces
+	if client != nil {
+		eths, err = client.FetchEthernetInterfaces(opts...)
+		if err != nil {
+			return nil, fmt.Errorf("failed to fetch ethernet interfaces with client: %v", err)
+		}
+	}
+
+	// check if we have the required params first
+	if eths == nil {
+		return nil, fmt.Errorf("invalid ethernet interfaces (variable is nil)")
+	}
+	if len(eths) <= 0 {
+		return nil, fmt.Errorf("no ethernet interfaces found")
+	}
+
+	// print message if verbose param found
+	if verbose, ok := params["verbose"].(bool); ok {
+		if verbose {
+			fmt.Printf("template: \n%s\nethernet interfaces found: %v\n", strings.Join(target.TemplatePaths, "\n\t"), len(eths))
+		}
+	}
+
+	// format output to write to config file
+	output := "# ========== DYNAMICALLY GENERATED BY OPENCHAMI CONFIGURATOR ==========\n"
+	for _, eth := range eths {
+		if eth.Type == "NodeBMC" {
+			output += "dhcp-host=" + eth.MacAddress + "," + eth.ComponentId + "," + eth.IpAddresses[0].IpAddress + "\n"
+		} else {
+			output += "dhcp-host=" + eth.MacAddress + "," + eth.ComponentId + "," + eth.IpAddresses[0].IpAddress + "\n"
+		}
+	}
+	output += "# ====================================================================="
+
+	// apply template substitutions and return output as byte array
+	return ApplyTemplateFromFiles(Mappings{
+		"plugin_name":        g.GetName(),
+		"plugin_version":     g.GetVersion(),
+		"plugin_description": g.GetDescription(),
+		"dhcp-hosts":         output,
+	}, target.TemplatePaths...)
+}