Providers refactoring

docker.go

@@ -0,0 +1,65 @@
+package main
+import(
+	"github.com/fsouza/go-dockerclient"
+	"fmt"
+	"github.com/leekchan/gtf"
+	"bytes"
+	"github.com/BurntSushi/toml"
+)
+
+type DockerProvider struct {
+	dockerClient *docker.Client
+}
+
+func (provider *DockerProvider) Provide(serviceChan chan<- Service){
+	endpoint := "unix:///var/run/docker.sock"
+	provider.dockerClient, _ = docker.NewClient(endpoint)
+	dockerEvents := make(chan *docker.APIEvents)
+	provider.dockerClient.AddEventListener(dockerEvents)
+	go func() {
+		for {
+			event := <-dockerEvents
+			fmt.Println("Event receveived", event)
+			service:= provider.loadDockerConfig()
+			serviceChan <- *service
+		}
+	}()
+
+	service:= provider.loadDockerConfig()
+	fmt.Println("Sending service")
+	serviceChan <- *service
+}
+
+func (provider *DockerProvider) loadDockerConfig() *Service {
+	service := new(Service)
+	containerList, _ := provider.dockerClient.ListContainers(docker.ListContainersOptions{})
+	containersInspected := []docker.Container{}
+	for _, container := range containerList {
+		containerInspected, _ := provider.dockerClient.InspectContainer(container.ID)
+		containersInspected = append(containersInspected, *containerInspected)
+	}
+	containers := struct {
+		Containers []docker.Container
+	}{
+		containersInspected,
+	}
+	tmpl, err := gtf.New("docker.tmpl").ParseFiles("docker.tmpl")
+	if err != nil {
+		panic(err)
+	}
+
+	var buffer bytes.Buffer
+
+	err = tmpl.Execute(&buffer, containers)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(buffer.String())
+
+	if _, err := toml.Decode(buffer.String(), service); err != nil {
+		fmt.Println(err)
+		return nil
+	}
+	return service
+}