Globally reuse time-wait connection not just loopback on the cluster (#3116)

* re #3066
*
https://serverfault.com/questions/234534/is-it-dangerous-to-change-the-value-of-proc-sys-net-ipv4-tcp-tw-reuse

Author: ravwojdyla

infra/marin-cluster-template.yaml

@@ -67,6 +67,7 @@ docker:
 initialization_commands:
   # https://github.com/marin-community/marin/issues/3066
   - sudo sysctl -w net.ipv4.ip_local_port_range="1024 65535"
+  - sudo sysctl -w net.ipv4.tcp_tw_reuse=1
   - 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