homelab/traefik
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Negroni middlewares

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This commit is contained in:
emile 2015-09-12 15:10:03 +02:00
parent d209467b5a
commit 36847f671f
8 changed files with 139 additions and 120 deletions
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41
docker.go
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@ -1,13 +1,14 @@
package main
import (
"github.com/fsouza/go-dockerclient"
"github.com/leekchan/gtf"
"bytes"
"github.com/BurntSushi/toml"
"text/template"
"strings"
"github.com/BurntSushi/ty/fun"
"github.com/fsouza/go-dockerclient"
"github.com/leekchan/gtf"
"strconv"
"strings"
"text/template"
)
type DockerProvider struct {
@ -30,7 +31,7 @@ func NewDockerProvider() *DockerProvider {
var DockerFuncMap = template.FuncMap{
"getBackend": func(container docker.Container) string {
for key, value := range container.Config.Labels {
if (key == "traefik.backend") {
if key == "traefik.backend" {
return value
}
}
@ -38,7 +39,7 @@ var DockerFuncMap = template.FuncMap{
},
"getPort": func(container docker.Container) string {
for key, value := range container.Config.Labels {
if (key == "traefik.port") {
if key == "traefik.port" {
return value
}
}
@ -49,7 +50,7 @@ var DockerFuncMap = template.FuncMap{
},
"getWeight": func(container docker.Container) string {
for key, value := range container.Config.Labels {
if (key == "traefik.weight") {
if key == "traefik.weight" {
return value
}
}
@ -61,29 +62,29 @@ var DockerFuncMap = template.FuncMap{
"getHost": getHost,
}
func (provider *DockerProvider) Provide(configurationChan chan <- *Configuration) {
func (provider *DockerProvider) Provide(configurationChan chan<- *Configuration) {
if client, err := docker.NewClient(provider.Endpoint); err != nil {
log.Fatalf("Failed to create a client for docker, error: %s", err)
} else {
provider.dockerClient = client
_, err := provider.dockerClient.Info()
if (err != nil){
if err != nil {
log.Fatalf("Docker connection error %+v", err)
}
log.Debug("Docker connection established")
dockerEvents := make(chan *docker.APIEvents)
if (provider.Watch) {
if provider.Watch {
provider.dockerClient.AddEventListener(dockerEvents)
go func() {
for {
event := <-dockerEvents
if (event == nil){
if event == nil {
log.Fatalf("Docker connection error %+v", err)
}
if(event.Status == "start" || event.Status == "die"){
if event.Status == "start" || event.Status == "die" {
log.Debug("Docker event receveived %+v", event)
configuration := provider.loadDockerConfig()
if (configuration != nil) {
if configuration != nil {
configurationChan <- configuration
}
}
@ -110,16 +111,16 @@ func (provider *DockerProvider) loadDockerConfig() *Configuration {
// filter containers
filteredContainers := fun.Filter(func(container docker.Container) bool {
if (len(container.NetworkSettings.Ports) == 0) {
if len(container.NetworkSettings.Ports) == 0 {
log.Debug("Filtering container without port %s", container.Name)
return false
}
_, err := strconv.Atoi(container.Config.Labels["traefik.port"])
if (len(container.NetworkSettings.Ports) > 1 && err != nil) {
if len(container.NetworkSettings.Ports) > 1 && err != nil {
log.Debug("Filtering container with more than 1 port and no traefik.port label %s", container.Name)
return false
}
if (container.Config.Labels["traefik.enable"] == "false") {
if container.Config.Labels["traefik.enable"] == "false" {
log.Debug("Filtering disabled container %s", container.Name)
return false
}
@ -141,13 +142,13 @@ func (provider *DockerProvider) loadDockerConfig() *Configuration {
}
gtf.Inject(DockerFuncMap)
tmpl := template.New(provider.Filename).Funcs(DockerFuncMap)
if(len(provider.Filename) > 0){
if len(provider.Filename) > 0 {
_, err := tmpl.ParseFiles(provider.Filename)
if err != nil {
log.Error("Error reading file", err)
return nil
}
}else{
} else {
buf, err := Asset("providerTemplates/docker.tmpl")
if err != nil {
log.Error("Error reading file", err)
@ -175,9 +176,9 @@ func (provider *DockerProvider) loadDockerConfig() *Configuration {
func getHost(container docker.Container) string {
for key, value := range container.Config.Labels {
if (key == "traefik.host") {
if key == "traefik.host" {
return value
}
}
return strings.Replace(strings.Replace(container.Name, "/", "", -1), ".", "-", -1)
}
}