такое впечатление что контейнеры создаваемые через cm в разных сетях docker (могу ошибаться )
./cm selenoid-ui start --port 8091 --args "--selenoid-uri
http://172.30.49.62:8090"
> Using Docker
- Your Docker API version is 1.40
> Selenoid UI is already downloaded
> Starting Selenoid UI...
> Successfully started Selenoid UI
[root@ext-edms-sel-centos aerokube-cm]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2a125240a427 aerokube/selenoid-ui:1.10.1 "/selenoid-ui --sele…" 7 seconds ago Up 6 seconds (health: starting)
0.0.0.0:8091->8080/tcp selenoid-ui
f44b250904e8 aerokube/selenoid:1.10.0 "/usr/bin/selenoid -…" 3 hours ago Up 3 hours
0.0.0.0:8090->4444/tcp selenoid
[root@ext-edms-sel-centos aerokube-cm]# docker logs 2a125240a427
2020/10/01 13:37:26 [INIT] [Listening on :8080]
2020/10/01 13:37:27 Client added. 1 registered clients
2020/10/01 13:37:27 Client added. 2 registered clients
2020/10/01 13:37:27 Client added. 3 registered clients
2020/10/01 13:37:32 [ERROR] [Can't get status: Get "
http://172.30.49.62:8090/status": dial tcp
172.30.49.62:8090: connect: no route to host]
2020/10/01 13:37:37 [ERROR] [Can't get status: Get "
http://172.30.49.62:8090/status": dial tcp
172.30.49.62:8090: connect: no route to host]
2020/10/01 13:37:42 [ERROR] [Can't get status: Get "
http://172.30.49.62:8090/status": dial tcp
172.30.49.62:8090: connect: no route to host]
2020/10/01 13:37:47 [ERROR] [Can't get status: Get "
http://172.30.49.62:8090/status": dial tcp
172.30.49.62:8090: connect: no route to host]
2020/10/01 13:37:52 [ERROR] [Can't get status: Get "
http://172.30.49.62:8090/status": dial tcp
172.30.49.62:8090: connect: no route to host]
2020/10/01 13:37:57 [ERROR] [Can't get status: Get "
http://172.30.49.62:8090/status": dial tcp
172.30.49.62:8090: connect: no route to host]
[root@ext-edms-sel-centos aerokube-cm]# curl
http://172.30.49.62:8090/status{"total":10,"used":0,"queued":0,"pending":0,"browsers":{"chrome":{"84.0":{},"85.0":{}},"firefox":{"79.0":{},"80.0":{}},"opera":{"69.0":{},"70.0":{}}}}