Martynas Pumputis
01bfa602ad
- "noDNS" controls whether upon ContainerStarted event a container should be registered within the Weave DNS. - "isPluginV2" will be used to determine a path to host's /proc.
98 lines
2.6 KiB
Go
98 lines
2.6 KiB
Go
package plugin
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
"net/http"
|
|
"os"
|
|
"path"
|
|
"strings"
|
|
|
|
"github.com/docker/libnetwork/ipamapi"
|
|
weaveapi "github.com/weaveworks/weave/api"
|
|
"github.com/weaveworks/weave/common"
|
|
"github.com/weaveworks/weave/common/docker"
|
|
weavenet "github.com/weaveworks/weave/net"
|
|
ipamplugin "github.com/weaveworks/weave/plugin/ipam"
|
|
netplugin "github.com/weaveworks/weave/plugin/net"
|
|
"github.com/weaveworks/weave/plugin/skel"
|
|
)
|
|
|
|
var Log = common.Log
|
|
|
|
func Start(weaveAPIAddr string, dockerClient *docker.Client, address string, meshAddress string, noDNS bool, isPluginV2 bool) {
|
|
weave := weaveapi.NewClient(weaveAPIAddr, Log)
|
|
|
|
Log.Info("Waiting for Weave API Server...")
|
|
weave.WaitAPIServer(30)
|
|
Log.Info("Finished waiting for Weave API Server")
|
|
|
|
if err := run(dockerClient, weave, address, meshAddress, noDNS, isPluginV2); err != nil {
|
|
Log.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func run(dockerClient *docker.Client, weave *weaveapi.Client, address, meshAddress string, noDNS, isPluginV2 bool) error {
|
|
endChan := make(chan error, 1)
|
|
|
|
if address != "" {
|
|
globalListener, err := listenAndServe(dockerClient, weave, address, endChan, "global", false, noDNS, isPluginV2)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer os.Remove(address)
|
|
defer globalListener.Close()
|
|
}
|
|
if meshAddress != "" {
|
|
meshListener, err := listenAndServe(dockerClient, weave, meshAddress, endChan, "local", true, noDNS, isPluginV2)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer os.Remove(meshAddress)
|
|
defer meshListener.Close()
|
|
}
|
|
|
|
statusListener, err := weavenet.ListenUnixSocket("/home/weave/plugin-status.sock")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
go serveStatus(statusListener)
|
|
|
|
return <-endChan
|
|
}
|
|
|
|
func listenAndServe(dockerClient *docker.Client, weave *weaveapi.Client, address string, endChan chan<- error, scope string, withIpam, noDNS bool, isPluginV2 bool) (net.Listener, error) {
|
|
name := strings.TrimSuffix(path.Base(address), ".sock")
|
|
// TODO(mp) fix plugin name, as it is used to determine whether network is our
|
|
d, err := netplugin.New(dockerClient, weave, name, scope, noDNS, isPluginV2)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var i ipamapi.Ipam
|
|
if withIpam {
|
|
i = ipamplugin.NewIpam(weave)
|
|
}
|
|
|
|
listener, err := weavenet.ListenUnixSocket(address)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
Log.Printf("Listening on %s for %s scope", address, scope)
|
|
|
|
go func() {
|
|
endChan <- skel.Listen(listener, d, i)
|
|
}()
|
|
|
|
return listener, nil
|
|
}
|
|
|
|
func serveStatus(listener net.Listener) {
|
|
server := &http.Server{Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
fmt.Fprintln(w, "ok")
|
|
})}
|
|
if err := server.Serve(listener); err != nil {
|
|
Log.Fatalf("ListenAndServeStatus failed: %s", err)
|
|
}
|
|
}
|