Issue indexer queue redis support (#6218)

* add redis queue

* finished indexer redis queue

* add redis vendor

* fix vet

* Update docs/content/doc/advanced/config-cheat-sheet.en-us.md

Co-Authored-By: lunny <xiaolunwen@gmail.com>

* switch to go mod

* Update required changes for new logging func signatures

vendor/github.com/go-redis/redis/internal/pool/conn.go

@@ -0,0 +1,93 @@
+package pool
+
+import (
+	"net"
+	"sync/atomic"
+	"time"
+
+	"github.com/go-redis/redis/internal/proto"
+)
+
+var noDeadline = time.Time{}
+
+type Conn struct {
+	netConn net.Conn
+
+	rd       *proto.Reader
+	rdLocked bool
+	wr       *proto.Writer
+
+	InitedAt time.Time
+	pooled   bool
+	usedAt   atomic.Value
+}
+
+func NewConn(netConn net.Conn) *Conn {
+	cn := &Conn{
+		netConn: netConn,
+	}
+	cn.rd = proto.NewReader(netConn)
+	cn.wr = proto.NewWriter(netConn)
+	cn.SetUsedAt(time.Now())
+	return cn
+}
+
+func (cn *Conn) UsedAt() time.Time {
+	return cn.usedAt.Load().(time.Time)
+}
+
+func (cn *Conn) SetUsedAt(tm time.Time) {
+	cn.usedAt.Store(tm)
+}
+
+func (cn *Conn) SetNetConn(netConn net.Conn) {
+	cn.netConn = netConn
+	cn.rd.Reset(netConn)
+	cn.wr.Reset(netConn)
+}
+
+func (cn *Conn) setReadTimeout(timeout time.Duration) error {
+	now := time.Now()
+	cn.SetUsedAt(now)
+	if timeout > 0 {
+		return cn.netConn.SetReadDeadline(now.Add(timeout))
+	}
+	return cn.netConn.SetReadDeadline(noDeadline)
+}
+
+func (cn *Conn) setWriteTimeout(timeout time.Duration) error {
+	now := time.Now()
+	cn.SetUsedAt(now)
+	if timeout > 0 {
+		return cn.netConn.SetWriteDeadline(now.Add(timeout))
+	}
+	return cn.netConn.SetWriteDeadline(noDeadline)
+}
+
+func (cn *Conn) Write(b []byte) (int, error) {
+	return cn.netConn.Write(b)
+}
+
+func (cn *Conn) RemoteAddr() net.Addr {
+	return cn.netConn.RemoteAddr()
+}
+
+func (cn *Conn) WithReader(timeout time.Duration, fn func(rd *proto.Reader) error) error {
+	_ = cn.setReadTimeout(timeout)
+	return fn(cn.rd)
+}
+
+func (cn *Conn) WithWriter(timeout time.Duration, fn func(wr *proto.Writer) error) error {
+	_ = cn.setWriteTimeout(timeout)
+
+	firstErr := fn(cn.wr)
+	err := cn.wr.Flush()
+	if err != nil && firstErr == nil {
+		firstErr = err
+	}
+	return firstErr
+}
+
+func (cn *Conn) Close() error {
+	return cn.netConn.Close()
+}