diff options
Diffstat (limited to 'modules/caddyhttp/reverseproxy/upstreams.go')
| -rw-r--r-- | modules/caddyhttp/reverseproxy/upstreams.go | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/modules/caddyhttp/reverseproxy/upstreams.go b/modules/caddyhttp/reverseproxy/upstreams.go index 8bdc60d..09efdd5 100644 --- a/modules/caddyhttp/reverseproxy/upstreams.go +++ b/modules/caddyhttp/reverseproxy/upstreams.go @@ -114,7 +114,7 @@ func (su SRVUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) { cached := srvs[suAddr] srvsMu.RUnlock() if cached.isFresh() { - return cached.upstreams, nil + return allNew(cached.upstreams), nil } // otherwise, obtain a write-lock to update the cached value @@ -126,7 +126,7 @@ func (su SRVUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) { // have refreshed it in the meantime before we re-obtained our lock cached = srvs[suAddr] if cached.isFresh() { - return cached.upstreams, nil + return allNew(cached.upstreams), nil } su.logger.Debug("refreshing SRV upstreams", @@ -145,7 +145,7 @@ func (su SRVUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) { su.logger.Warn("SRV records filtered", zap.Error(err)) } - upstreams := make([]*Upstream, len(records)) + upstreams := make([]Upstream, len(records)) for i, rec := range records { su.logger.Debug("discovered SRV record", zap.String("target", rec.Target), @@ -153,7 +153,7 @@ func (su SRVUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) { zap.Uint16("priority", rec.Priority), zap.Uint16("weight", rec.Weight)) addr := net.JoinHostPort(rec.Target, strconv.Itoa(int(rec.Port))) - upstreams[i] = &Upstream{Dial: addr} + upstreams[i] = Upstream{Dial: addr} } // before adding a new one to the cache (as opposed to replacing stale one), make room if cache is full @@ -170,7 +170,7 @@ func (su SRVUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) { upstreams: upstreams, } - return upstreams, nil + return allNew(upstreams), nil } func (su SRVUpstreams) String() string { @@ -206,7 +206,7 @@ func (SRVUpstreams) formattedAddr(service, proto, name string) string { type srvLookup struct { srvUpstreams SRVUpstreams freshness time.Time - upstreams []*Upstream + upstreams []Upstream } func (sl srvLookup) isFresh() bool { @@ -325,7 +325,7 @@ func (au AUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) { cached := aAaaa[auStr] aAaaaMu.RUnlock() if cached.isFresh() { - return cached.upstreams, nil + return allNew(cached.upstreams), nil } // otherwise, obtain a write-lock to update the cached value @@ -337,7 +337,7 @@ func (au AUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) { // have refreshed it in the meantime before we re-obtained our lock cached = aAaaa[auStr] if cached.isFresh() { - return cached.upstreams, nil + return allNew(cached.upstreams), nil } name := repl.ReplaceAll(au.Name, "") @@ -348,15 +348,15 @@ func (au AUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) { return nil, err } - upstreams := make([]*Upstream, len(ips)) + upstreams := make([]Upstream, len(ips)) for i, ip := range ips { - upstreams[i] = &Upstream{ + upstreams[i] = Upstream{ Dial: net.JoinHostPort(ip.String(), port), } } // before adding a new one to the cache (as opposed to replacing stale one), make room if cache is full - if cached.freshness.IsZero() && len(srvs) >= 100 { + if cached.freshness.IsZero() && len(aAaaa) >= 100 { for randomKey := range aAaaa { delete(aAaaa, randomKey) break @@ -369,7 +369,7 @@ func (au AUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) { upstreams: upstreams, } - return upstreams, nil + return allNew(upstreams), nil } func (au AUpstreams) String() string { return net.JoinHostPort(au.Name, au.Port) } @@ -377,7 +377,7 @@ func (au AUpstreams) String() string { return net.JoinHostPort(au.Name, au.Port) type aLookup struct { aUpstreams AUpstreams freshness time.Time - upstreams []*Upstream + upstreams []Upstream } func (al aLookup) isFresh() bool { @@ -483,6 +483,14 @@ func (u *UpstreamResolver) ParseAddresses() error { return nil } +func allNew(upstreams []Upstream) []*Upstream { + results := make([]*Upstream, len(upstreams)) + for i := range upstreams { + results[i] = &Upstream{Dial: upstreams[i].Dial} + } + return results +} + var ( srvs = make(map[string]srvLookup) srvsMu sync.RWMutex |