chore: remove all IPv6 functionality

tasks/performance.yaml

@@ -1,2 +1,40 @@
 ---
-# Configure performance
+
+# tcp performance tuning
+- name: "configure tcp performance settings"
+  ansible.posix.sysctl:
+    name: "{{ item.name }}"
+    value: "{{ item.value }}"
+    state: "present"
+    sysctl_file: "/etc/sysctl.conf"
+    reload: false
+  loop:
+    - name: "net.core.netdev_max_backlog"
+      value: "5000"
+    - name: "net.core.rmem_max"
+      value: "16777216"
+    - name: "net.core.wmem_max"
+      value: "16777216"
+    - name: "net.ipv4.tcp_rmem"
+      value: "4096 87380 16777216"
+    - name: "net.ipv4.tcp_wmem"
+      value: "4096 65536 16777216"
+    - name: "net.ipv4.tcp_congestion_control"
+      value: "bbr"
+    - name: "net.core.default_qdisc"
+      value: "fq"
+    - name: "net.ipv4.tcp_fin_timeout"
+      value: "15"
+    - name: "net.ipv4.tcp_tw_reuse"
+      value: "1"
+    - name: "net.ipv4.tcp_ecn"
+      value: "1"
+    - name: "net.core.netdev_budget"
+      value: "600"
+    - name: "net.core.netdev_budget_usecs"
+      value: "8000"
+
+- name: "Apply all sysctl settings"
+  ansible.builtin.command:
+    cmd: "sysctl -p"
+  changed_when: false