properly call logging.exception

- allow higher smtp connection limit

deploy-chatmail/src/deploy_chatmail/__init__.py

@@ -25,8 +25,8 @@ def _install_chatmaild() -> None:
         )
 
         apt.packages(
-            name="apt install python3-aiosmtpd python3-pip python3-venv",
-            packages=["python3-aiosmtpd", "python3-pip", "python3-venv"],
+            name="apt install python3-aiosmtpd",
+            packages=["python3-aiosmtpd", "python3-pip"],
         )
 
         # --no-deps because aiosmtplib is installed with `apt`.
@@ -133,44 +133,6 @@ def _configure_opendkim(domain: str, dkim_selector: str) -> bool:
     return need_restart
 
 
-def _install_mta_sts_daemon() -> bool:
-    need_restart = False
-
-    config = files.put(
-        name="upload postfix-mta-sts-resolver config",
-        src=importlib.resources.files(__package__).joinpath(
-            "postfix/mta-sts-daemon.yml"
-        ),
-        dest="/etc/mta-sts-daemon.yml",
-        user="root",
-        group="root",
-        mode="644",
-    )
-    need_restart |= config.changed
-
-    server.shell(
-        name="install postfix-mta-sts-resolver with pip",
-        commands=[
-            "python3 -m venv /usr/local/lib/postfix-mta-sts-resolver",
-            "/usr/local/lib/postfix-mta-sts-resolver/bin/pip install postfix-mta-sts-resolver",
-        ],
-    )
-
-    systemd_unit = files.put(
-        name="upload mta-sts-daemon systemd unit",
-        src=importlib.resources.files(__package__).joinpath(
-            "postfix/mta-sts-daemon.service"
-        ),
-        dest="/etc/systemd/system/mta-sts-daemon.service",
-        user="root",
-        group="root",
-        mode="644",
-    )
-    need_restart |= systemd_unit.changed
-
-    return need_restart
-
-
 def _configure_postfix(domain: str, debug: bool = False) -> bool:
     """Configures Postfix SMTP server."""
     need_restart = False
@@ -245,7 +207,7 @@ def _configure_dovecot(mail_server: str, debug: bool = False) -> bool:
     return need_restart
 
 
-def _configure_nginx(domain: str, mail_server: str) -> bool:
+def _configure_nginx(domain: str, debug: bool = False) -> bool:
     """Configures nginx HTTP server."""
     need_restart = False
 
@@ -269,16 +231,6 @@ def _configure_nginx(domain: str, mail_server: str) -> bool:
     )
     need_restart |= autoconfig.changed
 
-    mta_sts_config = files.template(
-        src=importlib.resources.files(__package__).joinpath("nginx/mta-sts.txt.j2"),
-        dest="/var/www/html/.well-known/mta-sts.txt",
-        user="root",
-        group="root",
-        mode="644",
-        config={"mail_server": mail_server},
-    )
-    need_restart |= mta_sts_config.changed
-
     return need_restart
 
 
@@ -303,7 +255,7 @@ def deploy_chatmail(mail_domain: str, mail_server: str, dkim_selector: str) -> N
     )
 
     # Deploy acmetool to have TLS certificates.
-    deploy_acmetool(nginx_hook=True, domains=[mail_server, f"mta-sts.{mail_server}"])
+    deploy_acmetool(nginx_hook=True, domains=[mail_server])
 
     apt.packages(
         name="Install Postfix",
@@ -333,8 +285,7 @@ def deploy_chatmail(mail_domain: str, mail_server: str, dkim_selector: str) -> N
     dovecot_need_restart = _configure_dovecot(mail_server, debug=debug)
     postfix_need_restart = _configure_postfix(mail_domain, debug=debug)
     opendkim_need_restart = _configure_opendkim(mail_domain, dkim_selector)
-    nginx_need_restart = _configure_nginx(mail_domain, mail_server)
-    mta_sts_need_restart = _install_mta_sts_daemon()
+    nginx_need_restart = _configure_nginx(mail_domain)
 
     # deploy web pages and info if we have them
     pkg_root = importlib.resources.files(__package__)
@@ -350,15 +301,6 @@ def deploy_chatmail(mail_domain: str, mail_server: str, dkim_selector: str) -> N
         restarted=opendkim_need_restart,
     )
 
-    systemd.service(
-        name="Start and enable MTA-STS daemon",
-        service="mta-sts-daemon.service",
-        daemon_reload=True,
-        running=True,
-        enabled=True,
-        restarted=mta_sts_need_restart,
-    )
-
     systemd.service(
         name="Start and enable Postfix",
         service="postfix.service",

deploy-chatmail/src/deploy_chatmail/acmetool/__init__.py

@@ -46,7 +46,8 @@ def deploy_acmetool(nginx_hook=False, email="", domains=[]):
         mode="644",
     )
 
-    server.shell(
-        name=f"Request certificate for: { ', '.join(domains) }",
-        commands=[f"acmetool want { ' '.join(domains)}"],
-    )
+    for domain in domains:
+        server.shell(
+            name=f"Request certificate for {domain}",
+            commands=[f"acmetool want {domain}"],
+        )

deploy-chatmail/src/deploy_chatmail/nginx/mta-sts.txt.j2

@@ -1,4 +0,0 @@
-version: STSv1
-mode: enforce
-mx: {{ config.mail_server }}
-max_age: 2419200

deploy-chatmail/src/deploy_chatmail/nginx/nginx.conf.j2

@@ -20,6 +20,8 @@ http {
 
 	ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
 	ssl_prefer_server_ciphers on;
+	ssl_certificate /var/lib/acme/live/{{ config.domain_name }}/fullchain;
+	ssl_certificate_key /var/lib/acme/live/{{ config.domain_name }}/privkey;
 
 	gzip on;
 
@@ -28,8 +30,6 @@ http {
 		listen [::]:80 default_server;
 		listen 443 ssl default_server;
 		listen [::]:443 ssl default_server;
-        ssl_certificate /var/lib/acme/live/{{ config.domain_name }}/fullchain;
-        ssl_certificate_key /var/lib/acme/live/{{ config.domain_name }}/privkey;
 
 		root /var/www/html;
 
@@ -37,28 +37,6 @@ http {
 
 		server_name _;
 
-		location / {
-			# First attempt to serve request as file, then
-			# as directory, then fall back to displaying a 404.
-			try_files $uri $uri/ =404;
-		}
-	}
-	server {
-		listen 80;
-		listen [::]:80;
-		listen 443 ssl;
-		listen [::]:443 ssl;
-
-		root /var/www/html;
-
-		index index.html index.htm;
-
-		server_name mta-sts.{{ config.domain_name }};
-
-        ssl_certificate /var/lib/acme/live/mta-sts.{{ config.domain_name }}/fullchain;
-    	ssl_certificate_key /var/lib/acme/live/mta-sts.{{ config.domain_name }}/privkey;
-
-
 		location / {
 			# First attempt to serve request as file, then
 			# as directory, then fall back to displaying a 404.

deploy-chatmail/src/deploy_chatmail/postfix/main.cf.j2

@@ -23,7 +23,6 @@ smtpd_tls_security_level=may
 smtp_tls_CApath=/etc/ssl/certs
 smtp_tls_security_level=may
 smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
-smtp_tls_policy_maps = socketmap:inet:127.0.0.1:8461:postfix
 
 smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
 myhostname = {{ config.domain_name }}

deploy-chatmail/src/deploy_chatmail/postfix/mta-sts-daemon.service

@@ -1,10 +0,0 @@
-[Unit]
-Description=Postfix MTA-STS resolver daemon
-
-[Service]
-ExecStart=/usr/local/lib/postfix-mta-sts-resolver/bin/mta-sts-daemon
-Restart=always
-RestartSec=30
-
-[Install]
-WantedBy=multi-user.target

deploy-chatmail/src/deploy_chatmail/postfix/mta-sts-daemon.yml

@@ -1,13 +0,0 @@
-host: 127.0.0.1
-port: 8461
-reuse_port: true
-shutdown_timeout: 20
-cache:
-  type: internal
-  options:
-    cache_size: 10000
-proactive_policy_fetching:
-  enabled: true
-default_zone:
-  strict_testing: false
-  timeout: 4

scripts/generate-dns-zone.sh

@@ -1,6 +1,5 @@
 #!/bin/sh
 : ${CHATMAIL_DOMAIN:=c1.testrun.org}
-: ${CHATMAIL_SERVER:=$CHATMAIL_DOMAIN}
 : ${CHATMAIL_SSH:=$CHATMAIL_DOMAIN}
 
 set -e
@@ -9,22 +8,13 @@ EMAIL="root@$CHATMAIL_DOMAIN"
 ACME_ACCOUNT_URL="$($SSH -- acmetool account-url)"
 
 cat <<EOF
-$CHATMAIL_DOMAIN. MX 10 $CHATMAIL_SERVER.
-$CHATMAIL_DOMAIN. TXT "v=spf1 a:$CHATMAIL_SERVER -all"
+$CHATMAIL_DOMAIN. MX 10 $CHATMAIL_DOMAIN.
+$CHATMAIL_DOMAIN. TXT "v=spf1 a:$CHATMAIL_DOMAIN -all"
 _dmarc.$CHATMAIL_DOMAIN. TXT "v=DMARC1;p=reject;rua=mailto:$EMAIL;ruf=mailto:$EMAIL;fo=1;adkim=r;aspf=r"
-_submission._tcp.$CHATMAIL_SERVER.  SRV 0 1 587 $CHATMAIL_SERVER.
-_submissions._tcp.$CHATMAIL_SERVER. SRV 0 1 465 $CHATMAIL_SERVER.
-_imap._tcp.$CHATMAIL_SERVER.        SRV 0 1 143 $CHATMAIL_SERVER.
-_imaps._tcp.$CHATMAIL_SERVER.       SRV 0 1 993 $CHATMAIL_SERVER.
-$CHATMAIL_DOMAIN. IN CAA 128 issue "letsencrypt.org;accounturi=$ACME_ACCOUNT_URL"
-_mta-sts.$CHATMAIL_DOMAIN. IN TXT "v=STSv1; id=$(date -u '+%Y%m%d%H%M')"
-mta-sts.$CHATMAIL_SERVER. IN CNAME $CHATMAIL_SERVER.
-_smtp._tls.$CHATMAIL_SERVER. IN TXT "v=TLSRPTv1;rua=mailto:$EMAIL"
+_submission._tcp.$CHATMAIL_DOMAIN.  SRV 0 1 587 $CHATMAIL_DOMAIN.
+_submissions._tcp.$CHATMAIL_DOMAIN. SRV 0 1 465 $CHATMAIL_DOMAIN.
+_imap._tcp.$CHATMAIL_DOMAIN.        SRV 0 1 143 $CHATMAIL_DOMAIN.
+_imaps._tcp.$CHATMAIL_DOMAIN.       SRV 0 1 993 $CHATMAIL_DOMAIN.
+$CHATMAIL_DOMAIN. IN CAA 128 issue "letsencrypt.org; accounturi=$ACME_ACCOUNT_URL"
 EOF
-if [ "$CHATMAIL_DOMAIN" != "$CHATMAIL_SERVER" ]; then
-cat <<EOF
-mta-sts.$CHATMAIL_DOMAIN. IN CNAME mta-sts.$CHATMAIL_SERVER.
-_smtp._tls.$CHATMAIL_DOMAIN. IN CNAME _smtp._tls.$CHATMAIL_SERVER.
-EOF
-fi
 $SSH opendkim-genzone -F | sed 's/^;.*$//;/^$/d'