Docker REST service: failed endpoint connectivity; port already allocated

[rafael5]

The docker build works fine and with no error message: docker build -t rest-adapter-service .

However, running the docker installation fails: docker run -p 8080:8080 rest-adapter-service

The error message is:
docker: Error response from daemon: driver failed programming external connectivity on endpoint hardcore_wozniak (9d9775dd46da1d96edf511fd42399442fa7a7b7dce6076f34ae9e4675dc1b313): Error starting userland proxy: Bind for 0.0.0.0:8080 failed: port is already allocated.
ERRO[0000] error waiting for container: context canceled

System information:
OS: MacOSX HIghSierra 16GB RAM
Docker: v 18.06.1-ce-mac73

=> Can anyone else replicate this error? If so, what is the issue?

[petkivim]

Hi @rafael5

I repeated the same steps (docker build -t rest-adapter-service ., docker run -p 8080:8080 rest-adapter-service) and the container got up and running without problems. Please see my system information below.

System information

• OS: MacOSX HIghSierra (v10.13.6), 16GB RAM
• Docker: v18.06.0-ce-mac70 (26399)

Have you checked that you don't have any other containers and/or services running that are using port 8080? The error message you received (Error starting userland proxy: Bind for 0.0.0.0:8080 failed: port is already allocated.) indicates that another service is already using port 8080. Have you tried to start REST Adapter Service using another port, e.g. 8081?

Regards,
Petteri