Separate from Kubernetes repo

2024-08-12 21:36:48 +03:00
commit 55f95641ca
14 changed files with 1080 additions and 0 deletions
--- a/authoritative-nameserver.yaml
+++ b/authoritative-nameserver.yaml
@@ -0,0 +1,82 @@
+# Authoritative DNS server for
+# k-space.ee, kspace.ee and k6.ee domains and several member domains
+# Domain records mostly managed by external-dns running on the Kubernetes cluster
+# Additionally cert-manager running on the Kubernetes cluster reads-writes DNS records
+
+---
+- name: Setup primary nameserver
+  hosts: ns1.k-space.ee
+  tasks:
+  - name: Make sure bind9 is installed
+    ansible.builtin.apt:
+      name: bind9
+      state: present
+
+  - name: Configure Bind
+    register: bind
+    copy:
+      dest: /etc/bind/named.conf
+      content: |
+        # This file is managed by Ansible
+        # https://git.k-space.ee/k-space/ansible/src/branch/main/authoritative-nameserver.yaml
+        # Do NOT modify manually
+
+        include "/etc/bind/named.conf.local";
+        include "/etc/bind/readwrite.key";
+        include "/etc/bind/readonly.key";
+
+        options {
+            directory "/var/cache/bind";
+            version "";
+            listen-on { any; };
+            listen-on-v6 { any; };
+            pid-file "/var/run/named/named.pid";
+            notify explicit; also-notify { 172.20.53.1; 172.20.53.2; 172.20.53.3; };
+            allow-recursion { none; };
+            recursion no;
+            check-names master ignore;
+            dnssec-validation no;
+            auth-nxdomain no;
+        };
+
+        # https://kb.isc.org/docs/aa-00723
+
+        acl allowed {
+            172.20.3.0/24;
+            172.20.4.0/24;
+        };
+
+        acl rejected { !allowed; any; };
+
+        zone "." {
+            type hint;
+            file "/var/lib/bind/db.root";
+        };
+
+        zone "k-space.ee" {
+            type master;
+            file "/var/lib/bind/db.k-space.ee";
+            allow-update { !rejected; key readwrite; };
+            allow-transfer { !rejected; key readonly; key readwrite; };
+        };
+
+        zone "k6.ee" {
+            type master;
+            file "/var/lib/bind/db.k6.ee";
+            allow-update { !rejected; key readwrite; };
+            allow-transfer { !rejected; key readonly; key readwrite; };
+        };
+
+        zone "kspace.ee" {
+            type master;
+            file "/var/lib/bind/db.kspace.ee";
+            allow-update { !rejected; key readwrite; };
+            allow-transfer { !rejected; key readonly; key readwrite; };
+        };
+  - name: Check Bind config
+    ansible.builtin.shell: "named-checkconf"
+  - name: Reload Bind config
+    service:
+      name: bind9
+      state: reloaded
+    when: bind.changed