I have found the solution:
./launcher rebuild <container> --docker-args "--sysctl net.core.somaxconn=65535"
«docker run» → «Configure namespaced kernel parameters (sysctls) at runtime»

I have found the solution:
./launcher rebuild <container> --docker-args "--sysctl net.core.somaxconn=65535"
«docker run» → «Configure namespaced kernel parameters (sysctls) at runtime»
