Increase ephemeral port range on the cluster (#3113)

* re #3066

Author: ravwojdyla

infra/marin-cluster-template.yaml

@@ -65,6 +65,8 @@ docker:
 
 
 initialization_commands:
+  # https://github.com/marin-community/marin/issues/3066
+  - sudo sysctl -w net.ipv4.ip_local_port_range="1024 65535"
   - which docker || (curl -fsSL https://get.docker.com -o get-docker.sh; sudo sh get-docker.sh; sudo usermod -aG docker $USER; sudo systemctl restart docker -f)
   - yes | gcloud auth configure-docker {{REGION}}-docker.pkg.dev
   # always run this because ray doesn't run with sudo