Extract playbook actions to roles

.gitignore

@@ -1,3 +1,3 @@
 # Ansible configuration files
 ansible/inventory.yml
-ansible/vars.yml
+vars-*.yml

README.md

@@ -4,88 +4,27 @@ This repository contains the scripts, configuration files, and Ansible playbooks
 
 Feel free to read, copy, use, and suggest improvements.
 
-## Configuration
+## Ansible configurations
 
-Ansible is used for configuration. The playbooks use a `vars.yml` file for settings. This file contains sensitive information, so it is not included in the repository. Below is an example of its structure:
+Available roles:
 
-```yml
+- firewall - configures firewall
----
+- initial-setup
-ssh_public_key: "ssh-rsa AAAAB3...ak4EsUU="
+  - applies available system patches
-mx1_domains:
+  - upgrades all installed packages
-  - mx1.pikami.org
+  - installs nano and curl
-mx2_domains:
+  - disables ssh password logins
-  - mx2.pikami.org
+  - adds ssh public key
-mx1_mail_domain: mx1.pikami.org
+- mail-primary - installs and configures opensmtpd with dovecot and sive
-mx2_mail_domain: mx2.pikami.org
+- mail-secondary - installs and configures opensmtpd as a backup mail receiver
-mail_domains:
+- prometheus-exporters - installs prometheus exporters
-  - pikami.net
+- ssl - generates ssl certificates and adds renew cron job
-  - pikami.org
+- vpn - configures wireguard vpn
-mail_users:
-  - user: bob@pikami.org
-    password: Password123
-    virtuals:
-      - "bob@pikami.net"
-      - "bob.coolman@pikami.net"
-  - user: alice@pikami.org
-    password: Password123
-    virtuals:
-      - "alice@pikami.net"
 
-mx1_wg:
+Available playbooks:
-  private_key: <wireguard private key>
-  address: <hosts address inside vpn>
-  port: 21841
-  interface: wg0
-  peers:
-    - name: Gateway
-      public_key: <vpn gateway public key>
-      endpoint: <gateway ip>:21841
-      allowed_ips: 10.2.0.1/32
-mx2_wg:
-  private_key: <wireguard private key>
-  address: <hosts address inside vpn>
-  port: 21841
-  interface: wg0
-  peers:
-    - name: Gateway
-      public_key: <vpn gateway public key>
-      endpoint: <gateway ip>:21841
-      allowed_ips: 10.2.0.1/32
 
-mx1_fw:
+- primary-mail.yml - sets up a primary mail server, uses `vars-mx1.yml` for configuration
-  interfaces:
+- secondary-mail.yml - sets up a secondary mail server, uses `vars-mx2.yml` for configuration
-    - name: vio0
-      allowed_tcp:
-        - 22 # SSH
-        - 80 # HTTP
-        - 443 # HTTPS
-        - 25 # SMTP Relay
-        - 587 # SMTP Submission
-        - 465 # SMTPS Submission
-        - 143 # IMAP
-        - 993 # IMAPS
-        - 4190 # Sive
-      allowed_udp:
-        - 21841 # Wireguard
-    - name: wg0
-      allowed_tcp:
-        - 22 # SSH
-        - 9100 # Prometheus node exporter
-mx2_fw:
-  interfaces:
-    - name: vio0
-      allowed_tcp:
-        - 22 # SSH
-        - 80 # HTTP
-        - 443 # HTTPS
-        - 25 # SMTP Relay
-      allowed_udp:
-        - 21841 # Wireguard
-    - name: wg0
-      allowed_tcp:
-        - 22 # SSH
-        - 9100 # Prometheus node exporter
-```
 
 The hosts are taken from the `inventory.yml` file:
 
@@ -93,7 +32,7 @@ The hosts are taken from the `inventory.yml` file:
 all:
   hosts:
     mx1:
-      ansible_host: <mail server ip>
+      ansible_host: <primary mail server ip>
     mx2:
       ansible_host: <secondary mail server ip>
 ```
@@ -117,21 +56,6 @@ ansible-galaxy collection install community.general
 Run playbooks
 
 ```sh
-# replace "01-initial_setup.yml" with the playbook you want to run
+# replace "secondary.yml" with the playbook you want to run
-ansible-playbook -i inventory.yml 01-initial_setup.yml
+ansible-playbook -i inventory.yml secondary.yml
 ```
-
-Current ansible playbooks:
-
-- 01-initial_setup.yml
-  - applies available system patches
-  - upgrades all installed packages
-  - installs nano, curl and git
-  - disables ssh password logins
-  - adds ssh public key
-  - configures firewall
-- 02-ssl.yml - generates ssl certificates and adds a renew cron job
-- 03-mail.yml - installs and configures dovecot and opensmtpd
-- 04-secondary-mail.yml - installs and configures opensmtpd as a backup mail receiver
-- 05-vpn.yml - configures wireguard vpn
-- 06-prometheus-exporters.yml - installs prometheus exporters

ansible/01-initial_setup.yml

@@ -1,56 +0,0 @@
-- name: Initial System Setup
-  hosts:
-    - mx1
-    - mx2
-  remote_user: root
-  become: true
-  become_method: su
-  vars_files:
-    - vars.yml
-  tasks:
-    - name: Apply all available system patches
-      command: syspatch
-      register: syspatch
-      failed_when: syspatch.rc != 0 and syspatch.rc != 2
-      changed_when: syspatch.rc == 0
-
-    - name: Update package list and upgrade all packages
-      command: pkg_add -u
-
-    - name: Install essential packages
-      community.general.openbsd_pkg:
-        name:
-          - nano
-          - curl
-          - git
-        state: present
-
-    - name: Disable SSH password authentication
-      ansible.builtin.lineinfile:
-        path: /etc/ssh/sshd_config
-        regexp: "^#?PasswordAuthentication"
-        line: "PasswordAuthentication no"
-        state: present
-      register: sshd_config
-
-    - name: Restart SSH service to apply changes
-      ansible.builtin.service:
-        name: sshd
-        state: restarted
-      when: sshd_config.changed
-
-    - name: Add SSH public key to authorized_keys
-      ansible.posix.authorized_key:
-        user: root
-        key: "{{ ssh_public_key }}"
-
-    - name: Configure firewall
-      template:
-        src: "templates/pf.conf.j2"
-        dest: /etc/pf.conf
-        validate: pfctl -n -f %s
-      register: pf
-
-    - name: Load config to pf if needed
-      command: pfctl -f /etc/pf.conf
-      when: pf.changed

ansible/02-ssl.yml

@@ -1,52 +0,0 @@
-- name: SSL Setup
-  hosts:
-    - mx1
-    - mx2
-  remote_user: root
-  vars_files:
-    - vars.yml
-  tasks:
-    - name: Create vhost directories
-      file:
-        path: "/var/www/vhosts/{{ item }}"
-        state: directory
-        owner: www
-      with_items: "{{ lookup('vars', inventory_hostname + '_domains') }}"
-
-    - name: Install httpd.conf
-      template:
-        src: "templates/httpd.conf"
-        dest: "/etc/httpd.conf"
-
-    - name: Enable and start httpd
-      service:
-        name: httpd
-        enabled: yes
-        state: started
-
-    - name: Install acme-client.conf
-      template:
-        src: "templates/acme-client.conf"
-        dest: "/etc/acme-client.conf"
-
-    - name: Initial acme-client run
-      command: "/usr/sbin/acme-client {{ item }}"
-      args:
-        creates: "/etc/ssl/{{ item }}.fullchain.pem"
-      with_items: "{{ lookup('vars', inventory_hostname + '_domains') }}"
-      notify:
-        - reload httpd
-
-    - name: Renew certificates via root crontab
-      cron:
-        name: "acme-client renew {{ item }}"
-        minute: "0"
-        job: "sleep $((RANDOM \\% 2048)) && acme-client {{ item }} && rcctl reload httpd"
-        user: root
-      with_items: "{{ lookup('vars', inventory_hostname + '_domains') }}"
-
-  handlers:
-    - name: reload httpd
-      service:
-        name: httpd
-        state: reloaded

ansible/03-mail.yml

@@ -1,121 +0,0 @@
-- name: OpenSMTPD Installation and Configuration
-  hosts:
-    - mx1
-  remote_user: root
-  vars_files:
-    - vars.yml
-  tasks:
-    - name: Install Packages
-      community.general.openbsd_pkg:
-        name:
-          - opensmtpd-filter-dkimsign
-          - dovecot
-          - dovecot-pigeonhole
-          - opensmtpd-extras
-        state: present
-
-    - name: Create the vmail group
-      group:
-        name: vmail
-        gid: 2000
-
-    - name: Create vmail user
-      user:
-        name: vmail
-        group: vmail
-        shell: /sbin/nologin
-        createhome: yes
-        home: /var/mail/vmail
-        uid: 2000
-
-    - name: Generate dkim keys
-      shell: |
-        KEYLEN=1024
-        DOMAIN={{ mx1_mail_domain }}
-
-        mkdir -p /etc/mail/dkim
-        if [ -f /etc/mail/dkim/$DOMAIN.key ]; then
-          echo "$DOMAIN.key already exists."
-          exit 0
-        fi
-
-        cd /etc/mail/dkim
-        (umask 337; openssl genrsa -out $DOMAIN.key $KEYLEN)
-        openssl rsa -in $DOMAIN.key -pubout -out $DOMAIN.pub
-        group info _dkimsign >/dev/null && chgrp _dkimsign $DOMAIN.key
-        echo "add the $DOMAIN.dns to the zone file"
-        echo "selector1._domainkey.$DOMAIN. 3600 IN TXT \"v=DKIM1; k=rsa; p=$(sed -e '1d' -e '$d' $DOMAIN.pub | tr -d '\n')\"" > ~/$DOMAIN.dns
-
-    - name: Configure OpenSMTPD smtpd.conf
-      template:
-        src: "templates/smtpd.conf"
-        dest: /etc/mail/smtpd.conf
-      notify:
-        - reload smtpd
-
-    - name: Enable and start OpenSMTPD service
-      service:
-        name: smtpd
-        enabled: yes
-        state: started
-
-    - name: Delete default dovecot configs
-      shell: |
-        if [ -f /etc/dovecot/conf.d/10-ssl.conf ]; then
-          cd /etc/dovecot/
-          rm -rf *
-        fi
-
-    - name: Install dovecot.conf
-      template:
-        src: "templates/dovecot.conf"
-        dest: "/etc/dovecot/dovecot.conf"
-      notify:
-        - reload dovecot
-
-    - name: Configure users
-      block:
-        - name: Remove existing
-          shell: |
-            echo "" > /etc/dovecot/users
-            chmod 640 /etc/dovecot/users
-            chown _smtpd:_dovecot /etc/dovecot/users
-
-            echo "" > /etc/mail/accounts
-            chmod 640 /etc/mail/accounts
-            chown _smtpd: /etc/mail/accounts
-
-            echo "" > /etc/mail/virtuals
-            chown _smtpd: /etc/mail/virtuals
-
-        - name: Add user accounts
-          loop: "{{ mail_users }}"
-          no_log: true
-          shell: |
-            DOVECOT_PASS=$(doveadm pw -p {{ item.password }})
-            SMTP_PASS=$(smtpctl encrypt {{ item.password }})
-
-            echo "{{ item.user }}:$DOVECOT_PASS::::" >> /etc/dovecot/users
-            echo "{{ item.user }}:$SMTP_PASS::::" >> /etc/mail/accounts
-
-        - name: Install dovecot.conf
-          template:
-            src: "templates/virtuals.conf"
-            dest: "/etc/mail/virtuals"
-
-    - name: Enable dovecot service
-      service:
-        name: dovecot
-        enabled: true
-        state: started
-
-  handlers:
-    - name: reload smtpd
-      service:
-        name: smtpd
-        state: restarted
-
-    - name: reload dovecot
-      service:
-        name: dovecot
-        state: reloaded

ansible/04-secondary-mail.yml

@@ -1,25 +0,0 @@
-- name: Secondary MX OpenSMTPD Configuration
-  hosts:
-    - mx2
-  remote_user: root
-  vars_files:
-    - vars.yml
-  tasks:
-    - name: Configure OpenSMTPD smtpd.conf
-      template:
-        src: "templates/secondary-smtpd.conf"
-        dest: /etc/mail/smtpd.conf
-      notify:
-        - reload smtpd
-
-    - name: Enable and start OpenSMTPD service
-      service:
-        name: smtpd
-        enabled: yes
-        state: started
-
-  handlers:
-    - name: reload smtpd
-      service:
-        name: smtpd
-        state: restarted

ansible/05-vpn.yml

@@ -1,37 +0,0 @@
-- name: VPN Setup
-  hosts:
-    - mx1
-    - mx2
-  remote_user: root
-  vars_files:
-    - vars.yml
-  tasks:
-    - name: Install wireguard
-      community.general.openbsd_pkg:
-        name:
-          - wireguard-tools
-        state: present
-
-    - name: Ensures /etc/wireguard dir exists
-      file:
-        path: "/etc/wireguard"
-        state: directory
-
-    - name: Create wireguard config
-      template:
-        src: "templates/wireguard.conf.j2"
-        dest: "/etc/wireguard/{{ lookup('vars', inventory_hostname + '_wg').interface }}.conf"
-        owner: root
-        group: wheel
-        mode: "0600"
-      register: wg_config
-
-    - name: Create wireguard interface
-      template:
-        src: "templates/wireguard.if.j2"
-        dest: "/etc/hostname.{{ lookup('vars', inventory_hostname + '_wg').interface }}"
-      register: iface_config
-
-    - name: Apply network configuration if changed
-      shell: sh /etc/netstart {{ lookup('vars', inventory_hostname + '_wg').interface }}
-      when: wg_config.changed or iface_config.changed

ansible/06-prometheus-exporters.yml

@@ -1,19 +0,0 @@
-- name: VPN Setup
-  hosts:
-    - mx1
-    - mx2
-  remote_user: root
-  vars_files:
-    - vars.yml
-  tasks:
-    - name: Install node-exporter
-      community.general.openbsd_pkg:
-        name:
-          - node_exporter
-        state: present
-
-    - name: Enable and start node_exporter
-      service:
-        name: node_exporter
-        enabled: yes
-        state: started

ansible/primary-mail.yml

@@ -0,0 +1,13 @@
+- name: Primary server configuration
+  hosts:
+    - mx1
+  remote_user: root
+  vars_files:
+    - vars-{{ inventory_hostname }}.yml
+  roles:
+    - initial-setup
+    - firewall
+    - ssl
+    - mail-primary
+    - vpn
+    - prometheus-exporters

ansible/roles/firewall/defaults/main.yml

@@ -0,0 +1,9 @@
+---
+firewall_interfaces:
+  - name: vio0
+    allowed_tcp:
+      - 22    # SSH
+      - 80    # HTTP
+      - 443   # HTTPS
+    allowed_udp:
+      - 21841 # Wireguard

ansible/roles/firewall/tasks/main.yml

@@ -0,0 +1,11 @@
+---
+- name: Configure firewall
+  template:
+    src: templates/pf.conf.j2
+    dest: /etc/pf.conf
+    validate: pfctl -n -f %s
+  register: pf
+
+- name: Load config to pf if needed
+  command: pfctl -f /etc/pf.conf
+  when: pf.changed

ansible/roles/firewall/templates/pf.conf.j2

@@ -1,4 +1,3 @@
-{% set _fw = lookup('vars', inventory_hostname + '_fw') %}
 # {{ ansible_managed }}
 # Skip filtering on the loopback interface
 set skip on lo
@@ -12,7 +11,7 @@ block return in on ! lo0 proto tcp to port 6000:6010
 # Port build user does not need network
 block return out log proto {tcp udp} user _pbuild
 
-{% for interface in _fw.interfaces %}
+{% for interface in firewall_interfaces %}
 # Pass rules for the specific ports on the {{ interface.name }} interface
 {% if (interface.allowed_tcp is defined) and interface.allowed_tcp %}
 {% for port in interface.allowed_tcp %}

ansible/roles/initial-setup/defaults/main.yml

@@ -0,0 +1,2 @@
+---
+ssh_public_key: "ssh-rsa AAAAB3...ak4EsUU="

ansible/roles/initial-setup/tasks/main.yml

@@ -0,0 +1,35 @@
+---
+- name: Apply all available system patches
+  command: syspatch
+  register: syspatch
+  failed_when: syspatch.rc != 0 and syspatch.rc != 2
+  changed_when: syspatch.rc == 0
+
+- name: Update package list and upgrade all packages
+  command: pkg_add -u
+
+- name: Install essential packages
+  community.general.openbsd_pkg:
+    name:
+      - nano
+      - curl
+    state: present
+
+- name: Disable SSH password authentication
+  ansible.builtin.lineinfile:
+    path: /etc/ssh/sshd_config
+    regexp: "^#?PasswordAuthentication"
+    line: "PasswordAuthentication no"
+    state: present
+  register: sshd_config
+
+- name: Restart SSH service to apply changes
+  ansible.builtin.service:
+    name: sshd
+    state: restarted
+  when: sshd_config.changed
+
+- name: Add SSH public key to authorized_keys
+  ansible.posix.authorized_key:
+    user: root
+    key: "{{ ssh_public_key }}"

ansible/roles/mail-primary/defaults/main.yml

@@ -0,0 +1,15 @@
+---
+server_domain: mx1.example.com
+mail_receive_domains:
+  - example.net
+  - example.com
+mail_users:
+  - user: bob@example.com
+    password: Password123
+    virtuals:
+      - "bob@example.net"
+      - "bob.coolman@example.net"
+  - user: alice@example.com
+    password: Password123
+    virtuals:
+      - "alice@example.net"

ansible/roles/mail-primary/handlers/main.yml

@@ -0,0 +1,10 @@
+---
+- name: reload smtpd
+  service:
+    name: smtpd
+    state: restarted
+
+- name: reload dovecot
+  service:
+    name: dovecot
+    state: reloaded

ansible/roles/mail-primary/tasks/main.yml

@@ -0,0 +1,104 @@
+---
+- name: Install Packages
+  community.general.openbsd_pkg:
+    name:
+      - opensmtpd-filter-dkimsign
+      - dovecot
+      - dovecot-pigeonhole
+      - opensmtpd-extras
+    state: present
+
+- name: Create the vmail group
+  group:
+    name: vmail
+    gid: 2000
+
+- name: Create vmail user
+  user:
+    name: vmail
+    group: vmail
+    shell: /sbin/nologin
+    createhome: yes
+    home: /var/mail/vmail
+    uid: 2000
+
+- name: Generate dkim keys
+  shell: |
+    KEYLEN=1024
+    DOMAIN={{ server_domain }}
+
+    mkdir -p /etc/mail/dkim
+    if [ -f /etc/mail/dkim/$DOMAIN.key ]; then
+      echo "$DOMAIN.key already exists."
+      exit 0
+    fi
+
+    cd /etc/mail/dkim
+    (umask 337; openssl genrsa -out $DOMAIN.key $KEYLEN)
+    openssl rsa -in $DOMAIN.key -pubout -out $DOMAIN.pub
+    group info _dkimsign >/dev/null && chgrp _dkimsign $DOMAIN.key
+    echo "add the $DOMAIN.dns to the zone file"
+    echo "selector1._domainkey.$DOMAIN. 3600 IN TXT \"v=DKIM1; k=rsa; p=$(sed -e '1d' -e '$d' $DOMAIN.pub | tr -d '\n')\"" > ~/$DOMAIN.dns
+
+- name: Configure OpenSMTPD smtpd.conf
+  template:
+    src: "templates/smtpd.conf"
+    dest: /etc/mail/smtpd.conf
+  notify:
+    - reload smtpd
+
+- name: Enable and start OpenSMTPD service
+  service:
+    name: smtpd
+    enabled: yes
+    state: started
+
+- name: Delete default dovecot configs
+  shell: |
+    if [ -f /etc/dovecot/conf.d/10-ssl.conf ]; then
+      cd /etc/dovecot/
+      rm -rf *
+    fi
+
+- name: Install dovecot.conf
+  template:
+    src: "templates/dovecot.conf"
+    dest: "/etc/dovecot/dovecot.conf"
+  notify:
+    - reload dovecot
+
+- name: Configure users
+  block:
+    - name: Remove existing
+      shell: |
+        echo "" > /etc/dovecot/users
+        chmod 640 /etc/dovecot/users
+        chown _smtpd:_dovecot /etc/dovecot/users
+
+        echo "" > /etc/mail/accounts
+        chmod 640 /etc/mail/accounts
+        chown _smtpd: /etc/mail/accounts
+
+        echo "" > /etc/mail/virtuals
+        chown _smtpd: /etc/mail/virtuals
+
+    - name: Add user accounts
+      loop: "{{ mail_users }}"
+      no_log: true
+      shell: |
+        DOVECOT_PASS=$(doveadm pw -p {{ item.password }})
+        SMTP_PASS=$(smtpctl encrypt {{ item.password }})
+
+        echo "{{ item.user }}:$DOVECOT_PASS::::" >> /etc/dovecot/users
+        echo "{{ item.user }}:$SMTP_PASS::::" >> /etc/mail/accounts
+
+    - name: Install dovecot.conf
+      template:
+        src: "templates/virtuals.conf"
+        dest: "/etc/mail/virtuals"
+
+- name: Enable dovecot service
+  service:
+    name: dovecot
+    enabled: true
+    state: started

ansible/roles/mail-primary/templates/dovecot.conf

@@ -1,7 +1,8 @@
+# {{ ansible_managed }}
 # Enable ssl
 ssl = required
-ssl_cert = < /etc/ssl/{{ mx1_mail_domain }}.fullchain.pem
+ssl_cert = < /etc/ssl/{{ server_domain }}.fullchain.pem
-ssl_key = < /etc/ssl/private/{{ mx1_mail_domain }}.key
+ssl_key = < /etc/ssl/private/{{ server_domain }}.key
 
 ssl_min_protocol = TLSv1.2
 ssl_prefer_server_ciphers = yes

ansible/roles/mail-primary/templates/smtpd.conf

@@ -0,0 +1,25 @@
+# {{ ansible_managed }}
+pki {{ server_domain }} cert "/etc/ssl/{{ server_domain }}.fullchain.pem"
+pki {{ server_domain }} key "/etc/ssl/private/{{ server_domain }}.key"
+
+table aliases file:/etc/mail/aliases
+table users passwd:/etc/mail/accounts
+table virtuals file:/etc/mail/virtuals
+
+filter dkimsign_rsa proc-exec "filter-dkimsign -d {{ server_domain }} -s selector1 \
+    -k /etc/mail/dkim/{{ server_domain }}.key" user _dkimsign group _dkimsign
+
+listen on socket filter dkimsign_rsa
+listen on all tls pki {{ server_domain }}
+listen on all port submission tls-require pki {{ server_domain }} auth <users> filter dkimsign_rsa
+listen on all port smtps tls-require pki {{ server_domain }} auth <users> filter dkimsign_rsa
+
+action "local_mail" lmtp "/var/dovecot/lmtp" rcpt-to virtual <virtuals>
+action "outbound" relay
+
+{% for domain in mail_receive_domains %}
+match from any for domain {{ domain }} action "local_mail"
+{% endfor %}
+match from local for local action "local_mail"
+match from local for any action "outbound"
+match auth from any for any action "outbound"

ansible/roles/mail-primary/templates/virtuals.conf

@@ -1,3 +1,4 @@
+# {{ ansible_managed }}
 {% for user in mail_users %}
 {{ user.user }}: vmail
 {% if (user.virtuals is defined) and user.virtuals %}

ansible/roles/mail-secondary/defaults/main.yml

@@ -0,0 +1,6 @@
+---
+primary_mail_server: mx1.example.com
+server_domain: mx1.example.com
+mail_receive_domains:
+  - example.net
+  - example.com

ansible/roles/mail-secondary/handlers/main.yml

@@ -0,0 +1,5 @@
+---
+- name: reload smtpd
+  service:
+    name: smtpd
+    state: restarted

ansible/roles/mail-secondary/tasks/main.yml

@@ -0,0 +1,13 @@
+---
+- name: Configure OpenSMTPD smtpd.conf
+  template:
+    src: templates/smtpd.conf
+    dest: /etc/mail/smtpd.conf
+  notify:
+    - reload smtpd
+
+- name: Enable and start OpenSMTPD service
+  service:
+    name: smtpd
+    enabled: yes
+    state: started

ansible/roles/mail-secondary/templates/smtpd.conf

@@ -0,0 +1,16 @@
+# {{ ansible_managed }}
+pki {{ server_domain }} cert "/etc/ssl/{{ server_domain }}.fullchain.pem"
+pki {{ server_domain }} key "/etc/ssl/private/{{ server_domain }}.key"
+
+listen on all tls pki {{ server_domain }}
+
+table aliases file:/etc/mail/aliases
+
+action "local" mbox alias <aliases>
+action "relay" relay host {{ primary_mail_server }}
+
+{% for domain in mail_receive_domains %}
+match from any for domain {{ domain }} action "relay"
+{% endfor %}
+match from local for local action "local"
+match from local for any action "relay"

ansible/roles/prometheus-exporters/tasks/main.yml

@@ -0,0 +1,12 @@
+---
+- name: Install node-exporter
+  community.general.openbsd_pkg:
+    name:
+      - node_exporter
+    state: present
+
+- name: Enable and start node_exporter
+  service:
+    name: node_exporter
+    enabled: yes
+    state: started

ansible/roles/ssl/defaults/main.yml

@@ -0,0 +1,2 @@
+domains:
+  - mx1.example.com

ansible/roles/ssl/handlers/main.yml

@@ -0,0 +1,5 @@
+---
+- name: reload httpd
+  ansible.builtin.service:
+    name: httpd
+    state: reloaded

ansible/roles/ssl/tasks/main.yml

@@ -0,0 +1,39 @@
+---
+- name: Create vhost directories
+  file:
+    path: "/var/www/vhosts/{{ item }}"
+    state: directory
+    owner: www
+  with_items: "{{ domains }}"
+
+- name: Install httpd.conf
+  template:
+    src: "templates/httpd.conf"
+    dest: "/etc/httpd.conf"
+
+- name: Enable and start httpd
+  service:
+    name: httpd
+    enabled: yes
+    state: started
+
+- name: Install acme-client.conf
+  template:
+    src: "templates/acme-client.conf"
+    dest: "/etc/acme-client.conf"
+
+- name: Initial acme-client run
+  command: "/usr/sbin/acme-client {{ item }}"
+  args:
+    creates: "/etc/ssl/{{ item }}.fullchain.pem"
+  with_items: "{{ domains }}"
+  notify:
+    - reload httpd
+
+- name: Renew certificates via root crontab
+  cron:
+    name: "acme-client renew {{ item }}"
+    minute: "0"
+    job: "sleep $((RANDOM \\% 2048)) && acme-client {{ item }} && rcctl reload httpd"
+    user: root
+  with_items: "{{ domains }}"

ansible/roles/ssl/templates/acme-client.conf

@@ -1,9 +1,10 @@
+# {{ ansible_managed }}
 authority letsencrypt {
     api url "https://acme-v02.api.letsencrypt.org/directory"
     account key "/etc/acme/letsencrypt-privkey.pem"
 }
 
-{% for domain in lookup('vars', inventory_hostname + '_domains') %}
+{% for domain in domains %}
 domain "{{ domain }}" {
     domain key "/etc/ssl/private/{{ domain }}.key"
     domain full chain certificate "/etc/ssl/{{ domain }}.fullchain.pem"

ansible/roles/ssl/templates/httpd.conf

@@ -1,3 +1,4 @@
+# {{ ansible_managed }}
 server "{{ inventory_hostname }}" {
     listen on * port 80
     location "/.well-known/acme-challenge/*" {
@@ -9,7 +10,7 @@ server "{{ inventory_hostname }}" {
     }
 }
 
-{% for vhost in lookup('vars', inventory_hostname + '_domains') %}
+{% for vhost in domains %}
 server "{{ vhost }}" {
     listen on * tls port 443
     tls {

ansible/roles/vpn/defaults/main.yml

@@ -0,0 +1,11 @@
+---
+wireguard:
+  private_key: <wireguard private key>
+  address: <hosts address inside vpn>
+  port: 21841
+  interface: wg0
+  peers:
+    - name: Gateway
+      public_key: <vpn gateway public key>
+      endpoint: <gateway ip>:21841
+      allowed_ips: 10.2.0.1/32

ansible/roles/vpn/tasks/main.yml

@@ -0,0 +1,30 @@
+---
+- name: Install wireguard
+  community.general.openbsd_pkg:
+    name:
+      - wireguard-tools
+    state: present
+
+- name: Ensures /etc/wireguard dir exists
+  file:
+    path: /etc/wireguard
+    state: directory
+
+- name: Create wireguard config
+  template:
+    src: templates/wireguard.conf.j2
+    dest: /etc/wireguard/{{ wireguard.interface }}.conf
+    owner: root
+    group: wheel
+    mode: "0600"
+  register: wg_config
+
+- name: Create wireguard interface
+  template:
+    src: "templates/wireguard.if.j2"
+    dest: "/etc/hostname.{{ wireguard.interface }}"
+  register: iface_config
+
+- name: Apply network configuration if changed
+  shell: sh /etc/netstart {{ wireguard.interface }}
+  when: wg_config.changed or iface_config.changed

ansible/roles/vpn/templates/wireguard.conf.j2

@@ -1,10 +1,9 @@
-{% set _wg = lookup('vars', inventory_hostname + '_wg') %}
 # {{ ansible_managed }}
 [Interface]
-PrivateKey = {{ _wg.private_key }}
+PrivateKey = {{ wireguard.private_key }}
-ListenPort = {{ _wg.port }}
+ListenPort = {{ wireguard.port }}
 
-{% for peer in _wg.peers %}
+{% for peer in wireguard.peers %}
 [Peer]
 # {{ peer.name }}
 PublicKey = {{ peer.public_key }}

ansible/roles/vpn/templates/wireguard.if.j2

@@ -0,0 +1,5 @@
+# {{ ansible_managed }}
+inet {{ wireguard.address }} 255.255.255.0 NONE
+up
+
+!/usr/local/bin/wg setconf {{ wireguard.interface }} /etc/wireguard/{{ wireguard.interface }}.conf

ansible/secondary-mail.yml

@@ -0,0 +1,13 @@
+- name: Secondary server configuration
+  hosts:
+    - mx2
+  remote_user: root
+  vars_files:
+    - vars-{{ inventory_hostname }}.yml
+  roles:
+    - initial-setup
+    - firewall
+    - ssl
+    - mail-secondary
+    - vpn
+    - prometheus-exporters

ansible/templates/secondary-smtpd.conf

@@ -1,16 +0,0 @@
-{% set _mx_domain = lookup('vars', inventory_hostname + '_mail_domain') %}
-pki {{ _mx_domain }} cert "/etc/ssl/{{ _mx_domain }}.fullchain.pem"
-pki {{ _mx_domain }} key "/etc/ssl/private/{{ _mx_domain }}.key"
-
-listen on all tls pki {{ _mx_domain }}
-
-table aliases file:/etc/mail/aliases
-
-action "local" mbox alias <aliases>
-action "relay" relay host {{ mx1_mail_domain }}
-
-{% for domain in mail_domains %}
-match from any for domain {{ domain }} action "relay"
-{% endfor %}
-match from local for local action "local"
-match from local for any action "relay"

ansible/templates/smtpd.conf

@@ -1,24 +0,0 @@
-pki {{ mx1_mail_domain }} cert "/etc/ssl/{{ mx1_mail_domain }}.fullchain.pem"
-pki {{ mx1_mail_domain }} key "/etc/ssl/private/{{ mx1_mail_domain }}.key"
-
-table aliases file:/etc/mail/aliases
-table users passwd:/etc/mail/accounts
-table virtuals file:/etc/mail/virtuals
-
-filter dkimsign_rsa proc-exec "filter-dkimsign -d {{ mx1_mail_domain }} -s selector1 \
-    -k /etc/mail/dkim/{{ mx1_mail_domain }}.key" user _dkimsign group _dkimsign
-
-listen on socket filter dkimsign_rsa
-listen on all tls pki {{ mx1_mail_domain }}
-listen on all port submission tls-require pki {{ mx1_mail_domain }} auth <users> filter dkimsign_rsa
-listen on all port smtps tls-require pki {{ mx1_mail_domain }} auth <users> filter dkimsign_rsa
-
-action "local_mail" lmtp "/var/dovecot/lmtp" rcpt-to virtual <virtuals>
-action "outbound" relay
-
-{% for domain in mail_domains %}
-match from any for domain {{ domain }} action "local_mail"
-{% endfor %}
-match from local for local action "local_mail"
-match from local for any action "outbound"
-match auth from any for any action "outbound"

ansible/templates/wireguard.if.j2

@@ -1,6 +0,0 @@
-{% set _wg = lookup('vars', inventory_hostname + '_wg') %}
-# {{ ansible_managed }}
-inet {{ _wg.address }} 255.255.255.0 NONE
-up
-
-!/usr/local/bin/wg setconf {{ _wg.interface }} /etc/wireguard/{{ _wg.interface }}.conf