bundles/postfix: introduce

bundles/postfix/files/main.cf

@@ -0,0 +1,92 @@
+smtpd_banner = SMTPd ready
+biff = no
+append_dot_mydomain = no
+readme_directory = no
+compatibility_level = 2
+myhostname = ${node.metadata.get('postfix', {}).get('myhostname', node.metadata['hostname'])}
+myorigin = /etc/mailname
+mydestination = $myhostname, localhost
+mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
+mailbox_size_limit = 0
+recipient_delimiter = +
+inet_protocols = all
+message_size_limit = ${node.metadata.get('postfix', {}).get('message_size_limit_mb', 10)*1024*1024}
+
+% if node.has_bundle('postfixadmin'):
+inet_interfaces = all
+% else:
+inet_interfaces = 127.0.0.1
+% endif
+
+<%text>
+smtp_use_tls = yes
+smtp_tls_loglevel = 1
+smtp_tls_note_starttls_offer = yes
+smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
+smtp_tls_security_level = dane
+smtp_dns_support_level = dnssec
+smtp_tls_protocols = !SSLv2, !SSLv3
+smtp_tls_ciphers = high
+smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
+</%text>
+
+% if node.has_bundle('postfixadmin'):
+smtpd_tls_cert_file=/var/lib/dehydrated/certs/${node.metadata['postfix']['myhostname']}/fullchain.pem
+smtpd_tls_key_file=/var/lib/dehydrated/certs/${node.metadata['postfix']['myhostname']}/privkey.pem
+<%text>
+smtpd_use_tls=yes
+smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
+smtpd_relay_restrictions = reject_non_fqdn_recipient reject_unknown_recipient_domain permit_mynetworks reject_unauth_destination
+smtpd_client_restrictions = permit_mynetworks permit_sasl_authenticated
+smtpd_helo_required = yes
+smtpd_helo_restrictions = permit_mynetworks reject_invalid_helo_hostname
+smtpd_data_restrictions = reject_unauth_pipelining
+smtpd_tls_security_level = may
+smtpd_tls_mandatory_ciphers = high
+smtpd_tls_mandatory_exclude_ciphers = aNULL, MD5
+smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1
+smtpd_tls_ciphers = high
+smtpd_tls_auth_only=yes
+</%text>
+
+relay_domains = $mydestination, pgsql:/etc/postfix/pgsql/relay_domains.cf
+virtual_alias_maps = pgsql:/etc/postfix/pgsql/virtual_alias_maps.cf
+virtual_mailbox_domains = pgsql:/etc/postfix/pgsql/virtual_domains_maps.cf
+virtual_mailbox_maps = pgsql:/etc/postfix/pgsql/virtual_mailbox_maps.cf
+virtual_mailbox_base = /var/mail/vmail
+virtual_mailbox_limit = 0
+virtual_minimum_uid = 115
+virtual_uid_maps = static:115
+virtual_gid_maps = static:115
+local_transport = virtual
+local_recipient_maps = $virtual_mailbox_maps
+% if node.has_bundle('dovecot'):
+virtual_transport = lmtp:unix:private/dovecot-lmtp
+
+smtpd_sasl_type = dovecot
+smtpd_sasl_path = private/auth
+smtpd_sasl_authenticated_header = yes
+smtpd_sasl_auth_enable = yes
+smtpd_sasl_security_options = noanonymous
+broken_sasl_auth_clients = yes
+% endif
+
+% if node.has_bundle('rspamd'):
+smtpd_milters = inet:localhost:11332
+non_smtpd_milters = inet:localhost:11332
+milter_protocol = 6
+milter_mail_macros =  i {mail_addr} {client_addr} {client_name} {auth_authen}
+milter_default_action = accept
+% endif
+
+mua_relay_restrictions = reject_non_fqdn_recipient,reject_unknown_recipient_domain,permit_mynetworks,permit_sasl_authenticated,reject
+mua_sender_restrictions = permit_mynetworks,reject_non_fqdn_sender,permit_sasl_authenticated,reject
+mua_client_restrictions = permit_mynetworks,permit_sasl_authenticated,reject
+
+postscreen_access_list = permit_mynetworks
+postscreen_blacklist_action = drop
+postscreen_greet_action = drop
+postscreen_dnsbl_threshold = 2
+postscreen_dnsbl_sites = ix.dnsbl.manitu.net zen.spamhaus.org
+postscreen_dnsbl_action = drop
+% endif

bundles/postfix/files/master.cf

@@ -0,0 +1,54 @@
+# ==========================================================================
+# service type  private unpriv  chroot  wakeup  maxproc command + args
+#               (yes)   (yes)   (no)    (never) (100)
+# ==========================================================================
+% if node.has_bundle('postfixadmin'):
+smtp      inet  n       -       y       -       1       postscreen
+    -o smtpd_sasl_auth_enable=no
+% else:
+smtp      inet  n       -       y       -       1       smtpd
+% endif
+smtpd     pass  -       -       y       -       -       smtpd
+dnsblog   unix  -       -       y       -       0       dnsblog
+tlsproxy  unix  -       -       y       -       0       tlsproxy
+% if node.has_bundle('postfixadmin'):
+submission inet n       -       y       -       -       smtpd
+    -o syslog_name=postfix/submission
+    -o smtpd_tls_security_level=encrypt
+    -o smtpd_sasl_auth_enable=yes
+    -o smtpd_sasl_type=dovecot
+    -o smtpd_sasl_path=private/auth
+    -o smtpd_sasl_security_options=noanonymous
+    -o smtpd_client_restrictions=$mua_client_restrictions
+    -o smtpd_sender_restrictions=$mua_sender_restrictions
+    -o smtpd_relay_restrictions=$mua_relay_restrictions
+    -o milter_macro_daemon_name=ORIGINATING
+    -o smtpd_helo_required=no
+    -o smtpd_helo_restrictions=
+    -o cleanup_service_name=submission-header-cleanup
+submission-header-cleanup unix n - n    -       0       cleanup
+    -o header_checks=regexp:/etc/postfix/submission_header_cleanup
+% endif
+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

bundles/postfix/items.py

@@ -0,0 +1,33 @@
+if node.has_bundle('postfixadmin'):
+    assert node.has_bundle('letsencrypt')
+
+files = {
+    '/etc/mailname': {
+        'content': node.metadata.get('postfix', {}).get('myhostname', node.metadata['hostname']),
+        'triggers': {
+            'svc_systemd:postfix:restart',
+        },
+    },
+    '/etc/postfix/master.cf': {
+        'content_type': 'mako',
+        'triggers': {
+            'svc_systemd:postfix:restart',
+        },
+    },
+    '/etc/postfix/main.cf': {
+        'content_type': 'mako',
+        'triggers': {
+            'svc_systemd:postfix:restart',
+        },
+    },
+}
+
+svc_systemd = {
+    'postfix': {
+        'needs': {
+            'file:/etc/postfix/master.cf',
+            'file:/etc/postfix/main.cf',
+            'pkg_apt:',
+        },
+    },
+}

bundles/postfix/metadata.py

@@ -0,0 +1,29 @@
+defaults = {
+    'apt': {
+        'packages': {
+            'postfix': {},
+        },
+    },
+}
+
+@metadata_reactor
+def letsencrypt(metadata):
+    if not node.has_bundle('letsencrypt'):
+        raise DoNotRunAgain
+
+    result = {
+        'reload_after': {
+            'postfix',
+        },
+    }
+
+    myhostname = metadata.get('postfix/myhostname', None)
+
+    if myhostname and myhostname != metadata.get('hostname'):
+        result['domains'] = {
+            myhostname: {},
+        }
+
+    return {
+        'letsencrypt': result,
+    }