HEADmain

23 files changed, 655 insertions, 0 deletions

diff --git a/README.md b/README.md
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--- /dev/null
+++ b/README.md
@@ -0,0 +1,30 @@
+# Infrastructure
+
+## Prerequisites
+
+Before running the playbook for the first time, ensure `certbot` is installed and you have generated a wildcard Let's Encrypt certificate for the main domain on the host machine. (If the certificate doesn't exist yet, Ansible will generate a temporary self-signed certificate so HAProxy can start).
+
+```bash
+sudo dnf install -y epel-release certbot
+# Run certbot dns challenge to get wildcard certs
+sudo certbot certonly --manual --preferred-challenges dns -d "*.romanilin.is" -d "romanilin.is"
+```
+
+## Deployment
+
+```bash
+sudo dnf install -y ansible-core git
+ansible-galaxy collection install ansible.posix community.general
+git clone <your-git-repo>
+cd infrastructure
+
+# Run the playbook
+ansible-playbook site.yaml --ask-vault-pass --ask-become-pass
+```
+
+## Reading Secrets
+
+```bash
+# Example: read the DKIM key from the mail container
+sudo machinectl shell mail /bin/cat /etc/opendkim/keys/romanilin.is/default.txt
+```
diff --git a/ansible.cfg b/ansible.cfg
new file mode 100644
index 0000000..95ac857
--- /dev/null
+++ b/ansible.cfg
@@ -0,0 +1,6 @@
+[defaults]
+inventory = inventory.yaml
+stdout_callback = default
+callback_result_format = yaml
+interpreter_python = auto_silent
+host_key_checking = False
diff --git a/group_vars/all/vars.yaml b/group_vars/all/vars.yaml
new file mode 100644
index 0000000..b851351
--- /dev/null
+++ b/group_vars/all/vars.yaml
@@ -0,0 +1,13 @@
+bridge_ip: 10.0.0.1
+
+containers:
+  mail:
+    ip: 10.0.0.2
+    forward_ports:
+      - "25"
+      - "465"
+      - "993"
+  git:
+    ip: 10.0.0.3
+    forward_ports: []
+    web_subdomain: "git"
diff --git a/group_vars/all/vault.yaml b/group_vars/all/vault.yaml
new file mode 100644
index 0000000..f06bd5d
--- /dev/null
+++ b/group_vars/all/vault.yaml
@@ -0,0 +1,12 @@
+$ANSIBLE_VAULT;1.1;AES256
+32643761326637343234326437343234386366663463313836313836323032636433366264626535
+3531383065383133363035303336396532616632303332380a643437376661633937313561633138
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+6630643965623639310a313431616133303533643162666636666338656566633732396663383938
+63643732653935386462323465363863636565376661383032643137646531323534343261353138
+62656339663363333032393365373962343635353038643738636436333332316139313265303266
+37373433353833376262643964656630356638666539306166663962333433316466643565616539
+35623763616365393831303661613363313933653163643364636537346136616462303263346436
+38356564386535663531663630316535333066346536316434653365636133396463366366646366
+30626539623163396534613930346562383035386462316330316163333932333462363633313731
+343062373761666361626533643035616166
diff --git a/inventory.yaml b/inventory.yaml
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--- /dev/null
+++ b/inventory.yaml
@@ -0,0 +1,18 @@
+all:
+  children:
+    metal_servers:
+      hosts:
+        host:
+          ansible_connection: local
+    containers:
+      vars:
+        ansible_connection: local
+        ansible_become_method: community.general.machinectl
+        ansible_become_user: root
+      children:
+        mail_servers:
+          hosts:
+            mail:
+        git_servers:
+          hosts:
+            git:
diff --git a/roles/container_base/handlers/main.yaml b/roles/container_base/handlers/main.yaml
new file mode 100644
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--- /dev/null
+++ b/roles/container_base/handlers/main.yaml
@@ -0,0 +1,4 @@
+- name: Restart Container systemd-networkd
+  ansible.builtin.systemd:
+    name: systemd-networkd
+    state: restarted
diff --git a/roles/container_base/tasks/main.yaml b/roles/container_base/tasks/main.yaml
new file mode 100644
index 0000000..275a24a
--- /dev/null
+++ b/roles/container_base/tasks/main.yaml
@@ -0,0 +1,27 @@
+- name: Ensure systemd-networkd is running in container
+  ansible.builtin.systemd:
+    name: systemd-networkd
+    state: started
+    enabled: yes
+
+- name: Set static IP for container dynamically
+  ansible.builtin.copy:
+    dest: /etc/systemd/network/80-container-host0.network
+    content: |
+      [Match]
+      Name=host0
+      [Network]
+      Address={{ containers[inventory_hostname].ip }}/24
+      Gateway={{ bridge_ip }}
+      DNS=1.1.1.1 8.8.8.8
+  notify: Restart Container systemd-networkd
+
+- name: Apply container network changes immediately
+  ansible.builtin.meta: flush_handlers
+
+- name: Install Packages
+  ansible.builtin.dnf:
+    name:
+      - epel-release
+      - python3-passlib
+    state: present
diff --git a/roles/git/handlers/main.yaml b/roles/git/handlers/main.yaml
new file mode 100644
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--- /dev/null
+++ b/roles/git/handlers/main.yaml
@@ -0,0 +1,7 @@
+- name: Restart Git Services
+  ansible.builtin.systemd:
+    name: "{{ item }}"
+    state: restarted
+  loop:
+    - nginx
+    - fcgiwrap@nginx.socket
diff --git a/roles/git/tasks/main.yaml b/roles/git/tasks/main.yaml
new file mode 100644
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--- /dev/null
+++ b/roles/git/tasks/main.yaml
@@ -0,0 +1,22 @@
+- name: Install Git, Nginx, and Fcgiwrap
+  ansible.builtin.dnf:
+    name:
+      - cgit
+      - nginx
+      - fcgiwrap
+    state: present
+
+- name: Deploy Git Nginx configuration
+  ansible.builtin.template:
+    src: git_nginx.conf.j2
+    dest: /etc/nginx/conf.d/default.conf
+  notify: Restart Git Services
+
+- name: Ensure Git Web Services are Enabled and Running
+  ansible.builtin.systemd:
+    name: "{{ item }}"
+    state: started
+    enabled: yes
+  loop:
+    - nginx
+    - fcgiwrap@nginx.socket
diff --git a/roles/git/templates/git_nginx.conf.j2 b/roles/git/templates/git_nginx.conf.j2
new file mode 100644
index 0000000..cd37f25
--- /dev/null
+++ b/roles/git/templates/git_nginx.conf.j2
@@ -0,0 +1,16 @@
+server {
+    listen 80;
+    server_name _;
+
+    root /usr/share/cgit;
+    try_files $uri @cgit;
+
+    location @cgit {
+        include fastcgi_params;
+        fastcgi_param SCRIPT_FILENAME /var/www/cgi-bin/cgit;
+        fastcgi_param PATH_INFO $uri;
+        fastcgi_param QUERY_STRING $args;
+        fastcgi_param HTTP_HOST $server_name;
+        fastcgi_pass unix:/run/fcgiwrap-nginx.sock;
+    }
+}
diff --git a/roles/host/files/60-machinectl-fast-user-auth.rules b/roles/host/files/60-machinectl-fast-user-auth.rules
new file mode 100644
index 0000000..eee39ea
--- /dev/null
+++ b/roles/host/files/60-machinectl-fast-user-auth.rules
@@ -0,0 +1,6 @@
+polkit.addRule(function(action, subject) {
+  if(action.id == "org.freedesktop.machine1.host-shell" &&
+    subject.isInGroup("wheel")) {
+      return polkit.Result.YES;
+  }
+});
diff --git a/roles/host/handlers/main.yaml b/roles/host/handlers/main.yaml
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--- /dev/null
+++ b/roles/host/handlers/main.yaml
@@ -0,0 +1,25 @@
+- name: Reload Firewalld
+  ansible.builtin.systemd:
+    name: firewalld
+    state: reloaded
+
+- name: Restart Host systemd-networkd
+  ansible.builtin.systemd:
+    name: systemd-networkd
+    state: restarted
+
+- name: Restart Containers
+  ansible.builtin.systemd:
+    name: "systemd-nspawn@{{ item.key }}"
+    state: restarted
+  loop: "{{ containers | dict2items }}"
+
+- name: Restart Nginx
+  ansible.builtin.systemd:
+    name: nginx
+    state: restarted
+
+- name: Restart Polkit
+  ansible.builtin.systemd:
+    name: polkit
+    state: restarted
diff --git a/roles/host/tasks/main.yaml b/roles/host/tasks/main.yaml
new file mode 100644
index 0000000..007d44d
--- /dev/null
+++ b/roles/host/tasks/main.yaml
@@ -0,0 +1,195 @@
+- name: Install firewalld and systemd-networkd packages
+  ansible.builtin.dnf:
+    name:
+      - firewalld
+      - systemd-container
+      - systemd-networkd
+      - openssl
+      - python3-libsemanage
+      - policycoreutils
+    state: present
+
+- name: Configure Polkit to allow machinectl fast user auth
+  ansible.builtin.copy:
+    src: 60-machinectl-fast-user-auth.rules
+    dest: /etc/polkit-1/rules.d/60-machinectl-fast-user-auth.rules
+    mode: "0644"
+  notify: Restart Polkit
+
+- name: Ensure firewalld and systemd-networkd are running
+  ansible.builtin.systemd:
+    name: "{{ item }}"
+    state: started
+    enabled: yes
+  loop:
+    - firewalld
+    - systemd-networkd
+
+- name: Enable masquerading for container internet access
+  ansible.posix.firewalld:
+    masquerade: yes
+    state: enabled
+    permanent: yes
+    zone: public
+  notify: Reload Firewalld
+
+- name: Open HTTP and HTTPS (TCP) for Nginx
+  ansible.posix.firewalld:
+    service: "{{ item }}"
+    state: enabled
+    permanent: yes
+    zone: public
+  loop:
+    - http
+    - https
+  notify: Reload Firewalld
+
+- name: Open HTTPS (UDP) for HTTP/3 QUIC support
+  ansible.posix.firewalld:
+    port: 443/udp
+    state: enabled
+    permanent: yes
+    zone: public
+  notify: Reload Firewalld
+
+- name: Configure Host Firewall Port Forwarding dynamically
+  ansible.posix.firewalld:
+    port_forward:
+      - port: "{{ item.1 }}"
+        proto: tcp
+        toaddr: "{{ item.0.value.ip }}"
+        toport: "{{ item.1 }}"
+    permanent: yes
+    state: enabled
+  loop: "{{ containers | dict2items | subelements('value.forward_ports', skip_missing=True) }}"
+  notify: Reload Firewalld
+
+- name: Create bridge netdev on host
+  ansible.builtin.copy:
+    dest: /etc/systemd/network/10-nspawn-br0.netdev
+    content: |
+      [NetDev]
+      Name=nspawn-br0
+      Kind=bridge
+  notify: Restart Host systemd-networkd
+
+- name: Assign IP to the host bridge
+  ansible.builtin.copy:
+    dest: /etc/systemd/network/10-nspawn-br0.network
+    content: |
+      [Match]
+      Name=nspawn-br0
+      [Network]
+      Address={{ bridge_ip }}/24
+  notify: Restart Host systemd-networkd
+
+- name: Apply networking changes immediately
+  ansible.builtin.meta: flush_handlers
+
+- name: Ensure containers are bootstrapped (AlmaLinux 10)
+  ansible.builtin.dnf:
+    installroot: "/var/lib/machines/{{ item.key }}"
+    releasever: "10"
+    name:
+      - almalinux-release
+      - systemd
+      - dbus
+      - systemd-networkd
+      - passwd
+      - dnf
+      - iproute
+    state: present
+  loop: "{{ containers | dict2items }}"
+
+- name: Initialize machine-id for containers
+  ansible.builtin.command: systemd-machine-id-setup --root=/var/lib/machines/{{ item.key }}
+  args:
+    creates: "/var/lib/machines/{{ item.key }}/etc/machine-id"
+  loop: "{{ containers | dict2items }}"
+
+- name: Fix SELinux contexts in container rootfs
+  ansible.builtin.command: restorecon -R /var/lib/machines/{{ item.key }}
+  register: restorecon_result
+  changed_when: "'Relabeled' in restorecon_result.stdout"
+  loop: "{{ containers | dict2items }}"
+
+- name: Ensure systemd-nspawn directory exists
+  ansible.builtin.file:
+    path: /etc/systemd/nspawn
+    state: directory
+    mode: "0755"
+
+- name: Ensure Let's Encrypt mock directories exist
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+    mode: '0755'
+  loop:
+    - "/etc/letsencrypt/archive/{{ vault_public_domain }}"
+    - "/etc/letsencrypt/live/{{ vault_public_domain }}"
+
+- name: Check if Let's Encrypt certificate exists
+  ansible.builtin.stat:
+    path: "/etc/letsencrypt/live/{{ vault_public_domain }}/fullchain.pem"
+  register: le_cert
+
+- name: Generate self-signed fallback cert in Let's Encrypt paths if missing
+  ansible.builtin.command: >
+    openssl req -x509 -nodes -days 365
+    -newkey ec -pkeyopt ec_paramgen_curve:prime256v1
+    -keyout /etc/letsencrypt/live/{{ vault_public_domain }}/privkey.pem
+    -out /etc/letsencrypt/live/{{ vault_public_domain }}/fullchain.pem
+    -subj "/CN={{ vault_public_domain }}"
+  args:
+    creates: "/etc/letsencrypt/live/{{ vault_public_domain }}/fullchain.pem"
+  when: not le_cert.stat.exists
+
+- name: Create systemd-nspawn configuration
+  ansible.builtin.template:
+    src: nspawn.j2
+    dest: "/etc/systemd/nspawn/{{ item.key }}.nspawn"
+  loop: "{{ containers | dict2items }}"
+  notify: Restart Containers
+
+- name: Enable and Start Containers
+  ansible.builtin.systemd:
+    name: "systemd-nspawn@{{ item.key }}"
+    state: started
+    enabled: yes
+  loop: "{{ containers | dict2items }}"
+
+- name: Install Nginx
+  ansible.builtin.dnf:
+    name: nginx
+    state: present
+
+- name: Allow Nginx to connect to upstream servers (SELinux)
+  ansible.posix.seboolean:
+    name: httpd_can_network_connect
+    state: yes
+    persistent: yes
+
+- name: Configure Nginx dynamically
+  ansible.builtin.template:
+    src: nginx.conf.j2
+    dest: /etc/nginx/nginx.conf
+    validate: nginx -t -c %s
+  notify: Restart Nginx
+
+- name: Ensure Nginx is enabled and running
+  ansible.builtin.systemd:
+    name: nginx
+    state: started
+    enabled: yes
+
+- name: Ensure Let's Encrypt renewal hook directory exists
+  ansible.builtin.file:
+    path: /etc/letsencrypt/renewal-hooks/post
+    state: directory
+    mode: '0755'
+
+- name: Deploy Let's Encrypt post-renewal hook for Nginx
+  ansible.builtin.template:
+    src: nginx-reload.sh.j2
+    dest: /etc/letsencrypt/renewal-hooks/post/nginx-reload.sh
+    mode: '0755'
diff --git a/roles/host/templates/nginx-reload.sh.j2 b/roles/host/templates/nginx-reload.sh.j2
new file mode 100644
index 0000000..f248776
--- /dev/null
+++ b/roles/host/templates/nginx-reload.sh.j2
@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+systemctl reload nginx
diff --git a/roles/host/templates/nginx.conf.j2 b/roles/host/templates/nginx.conf.j2
new file mode 100644
index 0000000..7360cae
--- /dev/null
+++ b/roles/host/templates/nginx.conf.j2
@@ -0,0 +1,67 @@
+user nginx;
+worker_processes auto;
+worker_rlimit_nofile 8192;
+error_log /var/log/nginx/error.log notice;
+pid /run/nginx.pid;
+
+events {
+    worker_connections 4096;
+}
+
+http {
+    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
+                      '$status $body_bytes_sent "$http_referer" '
+                      '"$http_user_agent" "$http_x_forwarded_for"';
+
+    access_log  /var/log/nginx/access.log  main;
+
+    sendfile            on;
+    tcp_nopush          on;
+    keepalive_timeout   65;
+    types_hash_max_size 4096;
+
+    include             /etc/nginx/mime.types;
+    default_type        application/octet-stream;
+
+    # Modern SSL configuration
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
+    ssl_prefer_server_ciphers on;
+    ssl_session_cache shared:SSL:10m;
+    ssl_session_timeout 1d;
+    ssl_session_tickets off;
+
+    # Redirect all HTTP traffic to HTTPS
+    server {
+        listen 80 default_server;
+        server_name _;
+        return 301 https://$host$request_uri;
+    }
+
+{% for name, config in containers.items() %}
+{% if config.web_subdomain is defined %}
+    server {
+        listen 443 ssl;         # TCP for HTTP/1.1 & HTTP/2
+        listen 443 quic;        # UDP for HTTP/3 QUIC
+        http2 on;               # Enable HTTP/2 over TCP
+
+        server_name {{ config.web_subdomain }}.{{ vault_public_domain }};
+
+        # Nginx reads them natively, no combining needed
+        ssl_certificate /etc/letsencrypt/live/{{ vault_public_domain }}/fullchain.pem;
+        ssl_certificate_key /etc/letsencrypt/live/{{ vault_public_domain }}/privkey.pem;
+
+        # Advertise HTTP/3 availability to browsers
+        add_header Alt-Svc 'h3=":443"; ma=2592000' always;
+
+        location / {
+            proxy_pass http://{{ config.ip }}:80;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto https;
+        }
+    }
+{% endif %}
+{% endfor %}
+}
diff --git a/roles/host/templates/nspawn.j2 b/roles/host/templates/nspawn.j2
new file mode 100644
index 0000000..15faf53
--- /dev/null
+++ b/roles/host/templates/nspawn.j2
@@ -0,0 +1,10 @@
+[Exec]
+Boot=yes
+Hostname={{ item.key }}.{{ vault_public_domain }}
+
+[Files]
+BindReadOnly=/etc/letsencrypt/live/{{ vault_public_domain }}:/etc/letsencrypt/live/{{ vault_public_domain }}
+BindReadOnly=/etc/letsencrypt/archive/{{ vault_public_domain }}:/etc/letsencrypt/archive/{{ vault_public_domain }}
+
+[Network]
+Bridge=nspawn-br0
diff --git a/roles/mail/handlers/main.yaml b/roles/mail/handlers/main.yaml
new file mode 100644
index 0000000..2d6ec58
--- /dev/null
+++ b/roles/mail/handlers/main.yaml
@@ -0,0 +1,15 @@
+- name: Fix DKIM permissions
+  ansible.builtin.file:
+    path: /etc/opendkim/keys/
+    owner: opendkim
+    group: opendkim
+    recurse: yes
+
+- name: Restart Mail Services
+  ansible.builtin.systemd:
+    name: "{{ item }}"
+    state: restarted
+  loop:
+    - postfix
+    - dovecot
+    - opendkim
diff --git a/roles/mail/tasks/main.yaml b/roles/mail/tasks/main.yaml
new file mode 100644
index 0000000..66b4215
--- /dev/null
+++ b/roles/mail/tasks/main.yaml
@@ -0,0 +1,61 @@
+- name: Install Mail Packages
+  ansible.builtin.dnf:
+    name:
+      - postfix
+      - dovecot
+      - opendkim
+      - opendkim-tools
+    state: present
+
+- name: Ensure OpenDKIM keys directory exists
+  ansible.builtin.file:
+    path: "/etc/opendkim/keys/{{ vault_public_domain }}"
+    state: directory
+    owner: opendkim
+    group: opendkim
+    mode: "0750"
+
+- name: Generate DKIM Key
+  ansible.builtin.command:
+    cmd: "opendkim-genkey -a ed25519 -s default -d {{ vault_public_domain }} -D /etc/opendkim/keys/{{ vault_public_domain }}/"
+    creates: "/etc/opendkim/keys/{{ vault_public_domain }}/default.private"
+  notify: Fix DKIM permissions
+
+- name: Configure OpenDKIM mappings
+  ansible.builtin.copy:
+    dest: "{{ item.path }}"
+    content: "{{ item.content }}"
+    mode: "0644"
+  loop:
+    - { path: /etc/opendkim/KeyTable, content: "default._domainkey.{{ vault_public_domain }} {{ vault_public_domain }}:default:/etc/opendkim/keys/{{ vault_public_domain }}/default.private\n" }
+    - { path: /etc/opendkim/SigningTable, content: "*@{{ vault_public_domain }} default._domainkey.{{ vault_public_domain }}\n" }
+    - { path: /etc/opendkim/TrustedHosts, content: "127.0.0.1\nlocalhost\n10.0.0.0/24\n" }
+  notify: Restart Mail Services
+
+- name: Deploy Configurations
+  ansible.builtin.template:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    mode: "0644"
+  loop:
+    - { src: postfix_main.cf.j2, dest: /etc/postfix/main.cf }
+    - { src: postfix_master.cf.j2, dest: /etc/postfix/master.cf }
+    - { src: dovecot.conf.j2, dest: /etc/dovecot/dovecot.conf }
+    - { src: opendkim.conf.j2, dest: /etc/opendkim.conf }
+  notify: Restart Mail Services
+
+- name: Add Mail User
+  ansible.builtin.user:
+    name: me
+    shell: /sbin/nologin
+    password: "{{ vault_mail_user_password | password_hash('sha512') }}"
+
+- name: Ensure Services are Enabled and Running
+  ansible.builtin.systemd:
+    name: "{{ item }}"
+    state: started
+    enabled: yes
+  loop:
+    - postfix
+    - dovecot
+    - opendkim
diff --git a/roles/mail/templates/dovecot.conf.j2 b/roles/mail/templates/dovecot.conf.j2
new file mode 100644
index 0000000..e733bae
--- /dev/null
+++ b/roles/mail/templates/dovecot.conf.j2
@@ -0,0 +1,22 @@
+protocols = imap
+listen = *
+mail_location = maildir:~/Maildir
+auth_mechanisms = plain login
+ssl = required
+ssl_cert = </etc/letsencrypt/live/{{ vault_public_domain }}/fullchain.pem
+ssl_key = </etc/letsencrypt/live/{{ vault_public_domain }}/privkey.pem
+
+passdb {
+  driver = pam
+}
+userdb {
+  driver = passwd
+}
+
+service auth {
+  unix_listener /var/spool/postfix/private/auth {
+    group = postfix
+    mode = 0660
+    user = postfix
+  }
+}
diff --git a/roles/mail/templates/opendkim.conf.j2 b/roles/mail/templates/opendkim.conf.j2
new file mode 100644
index 0000000..b29fcb3
--- /dev/null
+++ b/roles/mail/templates/opendkim.conf.j2
@@ -0,0 +1,15 @@
+PidFile                 /run/opendkim/opendkim.pid
+Mode                    sv
+Syslog                  yes
+SyslogSuccess           yes
+LogWhy                  yes
+UserID                  opendkim:opendkim
+Socket                  inet:8891@localhost
+Umask                   002
+Canonicalization        relaxed/relaxed
+Selector                default
+MinimumKeyBits          1024
+KeyTable                /etc/opendkim/KeyTable
+SigningTable            refile:/etc/opendkim/SigningTable
+ExternalIgnoreList      refile:/etc/opendkim/TrustedHosts
+InternalHosts           refile:/etc/opendkim/TrustedHosts
diff --git a/roles/mail/templates/postfix_main.cf.j2 b/roles/mail/templates/postfix_main.cf.j2
new file mode 100644
index 0000000..df20610
--- /dev/null
+++ b/roles/mail/templates/postfix_main.cf.j2
@@ -0,0 +1,27 @@
+myhostname = mail.{{ vault_public_domain }}
+mydomain = {{ vault_public_domain }}
+myorigin = $mydomain
+mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
+inet_interfaces = all
+inet_protocols = ipv4
+mynetworks = 127.0.0.0/8, 10.0.0.0/24
+home_mailbox = Maildir/
+message_size_limit = 26214400
+alias_maps = lmdb:/etc/aliases
+alias_database = lmdb:/etc/aliases
+
+smtpd_tls_cert_file = /etc/letsencrypt/live/{{ vault_public_domain }}/fullchain.pem
+smtpd_tls_key_file = /etc/letsencrypt/live/{{ vault_public_domain }}/privkey.pem
+smtpd_tls_security_level = may
+smtp_tls_security_level = may
+smtpd_tls_protocols = >=TLSv1.2
+smtp_tls_protocols = >=TLSv1.2
+
+smtpd_sasl_type = dovecot
+smtpd_sasl_path = private/auth
+smtpd_sasl_auth_enable = yes
+smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
+
+smtpd_milters = inet:localhost:8891
+non_smtpd_milters = inet:localhost:8891
+milter_default_action = accept
diff --git a/roles/mail/templates/postfix_master.cf.j2 b/roles/mail/templates/postfix_master.cf.j2
new file mode 100644
index 0000000..c2648ca
--- /dev/null
+++ b/roles/mail/templates/postfix_master.cf.j2
@@ -0,0 +1,31 @@
+smtp       inet  n       -       y       -       -       smtpd
+pickup     unix  n       -       y       60      1       pickup
+cleanup    unix  n       -       y       -       0       cleanup
+qmgr       unix  n       -       n       300     1       qmgr
+tlsmgr     unix  -       -       y       1000?   1       tlsmgr
+rewrite    unix  -       -       y       -       -       trivial-rewrite
+bounce     unix  -       -       y       -       0       bounce
+defer      unix  -       -       y       -       0       bounce
+trace      unix  -       -       y       -       0       bounce
+verify     unix  -       -       y       -       1       verify
+flush      unix  n       -       y       1000?   0       flush
+proxymap   unix  -       -       n       -       -       proxymap
+proxywrite unix  -       -       n       -       1       proxymap
+smtp       unix  -       -       y       -       -       smtp
+relay      unix  -       -       y       -       -       smtp
+showq      unix  n       -       y       -       -       showq
+error      unix  -       -       y       -       -       error
+retry      unix  -       -       y       -       -       error
+discard    unix  -       -       y       -       -       discard
+local      unix  -       n       n       -       -       local
+virtual    unix  -       n       n       -       -       virtual
+lmtp       unix  -       -       y       -       -       lmtp
+anvil      unix  -       -       y       -       1       anvil
+scache     unix  -       -       y       -       1       scache
+smtps      inet  n       -       y       -       -       smtpd
+  -o syslog_name=postfix/smtps
+  -o smtpd_tls_wrappermode=yes
+  -o smtpd_sasl_auth_enable=yes
+  -o smtpd_reject_unlisted_recipient=no
+  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
+  -o milter_macro_daemon_name=ORIGINATING
diff --git a/site.yaml b/site.yaml
new file mode 100644
index 0000000..99ff13f
--- /dev/null
+++ b/site.yaml
@@ -0,0 +1,23 @@
+- name: 1. Configure Bare Metal Host
+  hosts: metal_servers
+  become: yes
+  roles:
+    - host
+
+- name: 2. Configure Base System in all Containers
+  hosts: containers
+  become: yes
+  roles:
+    - container_base
+
+- name: 3. Configure Mail Container
+  hosts: mail_servers
+  become: yes
+  roles:
+    - mail
+
+- name: 4. Configure Git Container
+  hosts: git_servers
+  become: yes
+  roles:
+    - git