add support for vault-transport-max-conns-per-host

cli.go

@@ -585,6 +585,11 @@ func (cli *CLI) ParseFlags(args []string) (
 		return nil
 	}), "vault-transport-max-idle-conns-per-host", "")
 
+	flags.Var((funcIntVar)(func(i int) error {
+		c.Vault.Transport.MaxConnsPerHost = config.Int(i)
+		return nil
+	}), "vault-transport-max-conns-per-host", "")
+
 	flags.Var((funcDurationVar)(func(d time.Duration) error {
 		c.Vault.Transport.TLSHandshakeTimeout = config.TimeDuration(d)
 		return nil
@@ -920,6 +925,9 @@ Options:
   -vault-transport-max-idle-conns-per-host=<int>
       Sets the maximum number of idle connections to permit per host
 
+  -vault-transport-max-conns-per-host=<int>
+      Sets the maximum number of total connections to permit per host
+
   -vault-transport-tls-handshake-timeout=<duration>
       Sets the handshake timeout
 

cli_test.go

@@ -805,6 +805,18 @@ func TestCLI_ParseFlags(t *testing.T) {
 			},
 			false,
 		},
+		{
+			"vault-transport-max-conns-per-host",
+			[]string{"-vault-transport-max-conns-per-host", "25"},
+			&config.Config{
+				Vault: &config.VaultConfig{
+					Transport: &config.TransportConfig{
+						MaxConnsPerHost: config.Int(25),
+					},
+				},
+			},
+			false,
+		},
 		{
 			"vault-transport-tls-handshake-timeout",
 			[]string{"-vault-transport-tls-handshake-timeout", "30s"},