OS: debian 12

apt install -y nats-server natscli

先编辑一个版本的 kamailio.cfg

loadmodule "nats.so"
modparam("nats", "nats_url", "nats://127.0.0.1:4222")
modparamx("nats", "nats_url", $def(NATS_URL))
modparam("nats", "subject_queue_group", "MyQueue1:1234")

event_route[nats:MyQueue1]
xlog("L_INFO", "received $(natsData)\n");
}

启动 kamailio

nats pub MyQueue1 "hello, kamailio"

kamailio 日志为：

INFO: <script>: received hello, kamailio

export NATS_URL="nats://127.0.0.1:4222"

修改kamailio.cfg
#!defenv NATS_URL
modparam("nats", "nats_url", $def(NATS_URL))

其他照旧

export NATS_URL="nats://127.0.0.1:4222"
#!substdef "!NATSURL!$env(NATS_URL)!g"
modparam("nats", "nats_url", "NATSURL")

这样也行

export NATS_URL="nats://127.0.0.1:4222"
#!defenv NATS_URL ## 增加双引号
modparam("nats", "nats_url", $defv(NATS_URL)) ## 删除双引号

但 $defv 目前的 6.0.5 版本暂不支持

请看这个 commit

https://github.com/kamailio/kamailio/commit/72699b5d85bc1ca8b487749798ed8e93622d1686

估计 6.1.x 开始支持

export NATS_URL="nats://127.0.0.1:4222" modparamx("pv", "shvset", "nats_url=s:$env(NATS_URL)") modparamx("nats", "nats_url", "$shv(nats_url)")

这是另外一种搞法，但这样占用比较多的内存，搞不好就容易出现下面的错误：

ERROR: <core> [core/socket_info.c:235]: new_addr_info(): could not allocate private memory from pkg pool
ERROR: <core> [core/socket_info.c:1824]: add_interfaces(): new_addr_info2list failed
ERROR: <core> [core/socket_info.c:384]: new_sock_info(): could not allocate private memory from pkg pool
ERROR: <core> [core/socket_info.c:1096]: new_sock2list(): new_sock_info failed
ERROR: <core> [core/socket_info.c:1186]: add_listen_socket_info(): new_sock2list failed
ERROR: <core> [core/socket_info.c:2449]: fix_all_socket_lists(): add_listen_iface failed

你喜欢哪一种？欢迎留言！