func ClusterList(w http.ResponseWriter, r *http.Request) {
if err := common("GET", r); err != nil {
http.Error(w, err.Error(), 400)
return
}
// We are sending json data
w.Header().Add("Content-Type", "application/json")
var RootPath = DefaultRootPath
if root := r.Form.Get("root"); root != "" {
RootPath = root
}
var ClusterSize = DefaultListClusterSize
if projSizeStr := r.Form.Get("size"); projSizeStr != "" {
projSize, err := strconv.ParseInt(projSizeStr, 10, 0)
if err == nil {
ClusterSize = int(projSize)
}
}
var ClusterNodes = &Clusters{
Root: RootPath,
Size: ClusterSize,
Nodes: make([]string, 0, ClusterSize),
}
kAPI, _ := disc.NewKeysAPI(etcd.Config{
Endpoints: disc.Endpoints(),
})
work, abort := ctx.WithTimeout(ctx.Background(), 3*time.Second)
defer abort()
resp, err := kAPI.Get(work, RootPath, &etcd.GetOptions{
Recursive: true,
})
if err != nil {
json.NewEncoder(w).Encode(ClusterNodes)
return
}
// Go traverse the discovery tree
for _, node := range resp.Node.Nodes {
checkCluster(ClusterNodes, node)
}
ClusterNodes.Size = len(ClusterNodes.Nodes)
json.NewEncoder(w).Encode(ClusterNodes)
return
}
func followBootStrap() {
kAPI, err := disc.NewKeysAPI(etcd.Config{Endpoints: disc.Endpoints()})
if err != nil {
log.WithFields(log.Fields{"err": err}).Warning("bootstrap")
return
}
resp, err := kAPI.Get(RootContext, ProxyConfigKey, nil)
if err != nil {
log.WithFields(log.Fields{"err": err}).Warning("bootstrap")
reload(make([]*Info, 0))
} else if resp.Node.Dir {
log.WithFields(log.Fields{"key": resp.Node.Key}).Warning("not a valid node")
reload(make([]*Info, 0))
} else {
log.WithFields(log.Fields{"key": resp.Node.Key, "val": resp.Node.Value}).Debug("cfgkey")
if pxycfg := get(resp.Node.Value); pxycfg != nil {
reload(pxycfg)
} else {
reload(make([]*Info, 0))
}
}
}