1 files changed, 55 insertions, 0 deletions
diff --git a/srv/src/cfg/radix_client.go b/srv/src/cfg/radix_client.go
new file mode 100644
index 0000000..55ff5d7
--- /dev/null
+++ b/srv/src/cfg/radix_client.go
@@ -0,0 +1,55 @@
+package cfg
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/mediocregopher/mediocre-go-lib/v2/mctx"
+	"github.com/mediocregopher/radix/v4"
+)
+
+// RadixClient is a single redis client which can be configured.
+type RadixClient struct {
+	radix.Client
+
+	proto, addr string
+	poolSize    int
+}
+
+// SetupCfg implement the cfg.Cfger interface.
+func (c *RadixClient) SetupCfg(cfg *Cfg) {
+
+	cfg.StringVar(&c.proto, "redis-proto", "tcp", "Network protocol to connect to redis over, can be tcp or unix")
+	cfg.StringVar(&c.addr, "redis-addr", "127.0.0.1:6379", "Address redis is expected to listen on")
+	cfg.IntVar(&c.poolSize, "redis-pool-size", 5, "Number of connections in the redis pool to keep")
+
+	cfg.OnInit(func(ctx context.Context) error {
+		client, err := (radix.PoolConfig{
+			Size: c.poolSize,
+		}).New(
+			ctx, c.proto, c.addr,
+		)
+
+		if err != nil {
+			return fmt.Errorf(
+				"initializing redis pool of size %d at %s://%s: %w",
+				c.poolSize, c.proto, c.addr, err,
+			)
+		}
+
+		c.Client = client
+		return nil
+	})
+}
+
+// Annotate implements mctx.Annotator interface.
+func (c *RadixClient) Annotate(a mctx.Annotations) {
+	a["redisProto"] = c.proto
+	a["redisAddr"] = c.addr
+	a["redisPoolSize"] = c.poolSize
+}
+
+// Close cleans up the radix client.
+func (c *RadixClient) Close() error {
+	return c.Client.Close()
+}