func getPeersFromDiscoveryURL(discoverURL string) ([]string, error) {
if discoverURL == "" {
return nil, nil
}
u, err := url.Parse(discoverURL)
if err != nil {
return nil, err
}
token := u.Path
u.Path = ""
c, err := client.NewHTTPClient(&http.Transport{}, []string{u.String()})
if err != nil {
return nil, err
}
dc := client.NewDiscoveryKeysAPI(c)
ctx, cancel := context.WithTimeout(context.Background(), client.DefaultRequestTimeout)
resp, err := dc.Get(ctx, token)
cancel()
if err != nil {
return nil, err
}
peers := make([]string, 0)
// append non-config keys to peers
for _, n := range resp.Node.Nodes {
if g := path.Base(n.Key); g == "_config" || g == "_state" {
continue
}
peers = append(peers, n.Value)
}
return peers, nil
}
func New(durl string, id uint64, config string) (Discoverer, error) {
u, err := url.Parse(durl)
if err != nil {
return nil, err
}
token := u.Path
u.Path = ""
pf, err := proxyFuncFromEnv()
if err != nil {
return nil, err
}
c, err := client.NewDiscoveryKeysAPI(&http.Transport{Proxy: pf}, u.String(), client.DefaultRequestTimeout)
if err != nil {
return nil, err
}
return &discovery{
cluster: token,
id: id,
config: config,
c: c,
url: u,
clock: clockwork.NewRealClock(),
}, nil
}
func newDiscovery(durl, dproxyurl string, id types.ID) (*discovery, error) {
u, err := url.Parse(durl)
if err != nil {
return nil, err
}
token := u.Path
u.Path = ""
pf, err := newProxyFunc(dproxyurl)
if err != nil {
return nil, err
}
c, err := client.NewHTTPClient(&http.Transport{Proxy: pf}, []string{u.String()})
if err != nil {
return nil, err
}
dc := client.NewDiscoveryKeysAPI(c)
return &discovery{
cluster: token,
c: dc,
id: id,
url: u,
clock: clockwork.NewRealClock(),
}, nil
}