add retry and disable all unattended

sky/templates/aws-ray.yml.j2

@@ -122,6 +122,10 @@ available_node_types:
           - path: /etc/apt/apt.conf.d/10cloudinit-disable
             content: |
               APT::Periodic::Enable "0";
+          - path: /etc/apt/apt.conf.d/52unattended-upgrades-local
+            content: |
+              Unattended-Upgrade::DevRelease "false";
+              Unattended-Upgrade::Allowed-Origins {};
         bootcmd:
           - systemctl stop apt-daily.timer apt-daily-upgrade.timer unattended-upgrades.service
           - systemctl disable apt-daily.timer apt-daily-upgrade.timer unattended-upgrades.service
@@ -178,15 +182,9 @@ setup_commands:
     {{ ray_skypilot_installation_commands }}
     sudo bash -c 'rm -rf /etc/security/limits.d; echo "* soft nofile 1048576" >> /etc/security/limits.conf; echo "* hard nofile 1048576" >> /etc/security/limits.conf';
     {%- if docker_image is none %}
-    sudo systemctl stop unattended-upgrades || true;
-    sudo systemctl disable unattended-upgrades || true;
-    sudo sed -i 's/Unattended-Upgrade "1"/Unattended-Upgrade "0"/g' /etc/apt/apt.conf.d/20auto-upgrades || true;
-    sudo kill -9 `sudo lsof /var/lib/dpkg/lock-frontend | awk '{print $2}' | tail -n 1` || true;
-    sudo pkill -9 apt-get;
-    sudo pkill -9 dpkg;
-    sudo dpkg --configure -a;
     sudo grep -e '^DefaultTasksMax' /etc/systemd/system.conf || (sudo bash -c 'echo "DefaultTasksMax=infinity" >> /etc/systemd/system.conf'); sudo systemctl set-property user-$(id -u $(whoami)).slice TasksMax=infinity; sudo systemctl daemon-reload;
     {%- endif %}
+    sudo apt install retry;
     mkdir -p ~/.ssh; (grep -Pzo -q "Host \*\n  StrictHostKeyChecking no" ~/.ssh/config) || printf "Host *\n  StrictHostKeyChecking no\n" >> ~/.ssh/config;
     [ -f /etc/fuse.conf ] && sudo sed -i 's/#user_allow_other/user_allow_other/g' /etc/fuse.conf || (sudo sh -c 'echo "user_allow_other" > /etc/fuse.conf'); # This is needed for `-o allow_other` option for `goofys`;