func (s *EtcdBackend) readUpstream(upstreamId string) (*Upstream, error) {
upstreamKey := join(s.etcdKey, "upstreams", upstreamId)
_, err := s.client.Get(upstreamKey, false, false)
if err != nil {
return nil, err
}
upstream := &Upstream{
Name: suffix(upstreamKey),
EtcdKey: upstreamKey,
Endpoints: []*Endpoint{},
}
endpointPairs := s.getVals(join(upstream.EtcdKey, "endpoints"))
for _, e := range endpointPairs {
_, err := endpoint.ParseUrl(e.Val)
if err != nil {
fmt.Printf("Ignoring endpoint: failed to parse url: %s", e.Val)
continue
}
e := &Endpoint{
Url: e.Val,
EtcdKey: e.Key,
Name: suffix(e.Key),
}
upstream.Endpoints = append(upstream.Endpoints, e)
}
return upstream, nil
}
func (s *EtcdBackend) AddEndpoint(upstreamId, id, url string) error {
if _, err := endpoint.ParseUrl(url); err != nil {
return fmt.Errorf("Endpoint url '%s' is not valid")
}
if id == "" {
if _, err := s.client.AddChild(s.path("upstreams", upstreamId, "endpoints"), url, 0); err != nil {
return formatErr(err)
}
} else {
if _, err := s.client.Create(s.path("upstreams", upstreamId, "endpoints", id), url, 0); err != nil {
return formatErr(err)
}
}
return nil
}