feat: internet access to the private compute instances

playbooks/configure_nat.yml

@@ -2,4 +2,21 @@
   hosts: gateways
   gather_facts: false
   tasks:
-    - ansible.builtin.raw: hostname -I
+    - name: Enable IPv4 forwarding.
+      ansible.posix.sysctl:
+        name: net.ipv4.ip_forward
+        value: '1'
+        sysctl_set: true
+
+    - name: Update and upgrade packages.
+      ansible.builtin.apt:
+        update_cache: true
+        upgrade: true
+
+    - name: Add routing.
+      ansible.builtin.iptables:
+        table: nat
+        chain: POSTROUTING
+        source: 10.0.0.0/16
+        out_interface: eth0
+        jump: MASQUERADE