Add Postfix in Canasta (#475)

* Add Postfix in Canasta

* Add Postfix in Canasta

* Add Postfix in Canasta

Dockerfile

@@ -95,6 +95,16 @@ RUN set -x; \
 	curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && composer self-update 2.1.3
 
+RUN set -x; \
+	# Preconfigure Postfix to avoid the interactive prompt
+	echo "postfix postfix/main_mailer_type select Internet Site" | debconf-set-selections \
+    && echo "postfix postfix/mailname string $MAILNAME" | debconf-set-selections \
+	&& apt-get update \
+	&& apt-get install -y mailutils \
+	&& apt install -y postfix 
+
+COPY main.cf /etc/postfix/main.cf
+
 FROM base AS source
 
 # MediaWiki core

_sources/scripts/run-all.sh

@@ -133,6 +133,13 @@ make_dir_writable "$MW_VOLUME" -not '(' -path "$MW_VOLUME/images" -prune ')'
 # Running php-fpm
 /run-php-fpm.sh &
 
+echo "root: $EMAIL" >> /etc/aliases
+echo "$MAILNAME" >> /etc/mailname
+echo "[$SMTP_DOMAIN]:$SMTP_PORT $EMAIL:$EMAIL_PASSWORD" >> /etc/postfix/sasl_passwd
+chmod 0600 /etc/postfix/sasl_passwd
+postmap /etc/postfix/sasl_passwd
+service postfix start
+
 ############### Run Apache ###############
 # Make sure we're not confused by old, incompletely-shutdown httpd
 # context after restarting the container.  httpd won't start correctly

main.cf

@@ -0,0 +1,39 @@
+# See /usr/share/postfix/main.cf.dist for a commented, more complete version
+# Debian specific: Specifying a file name will cause the first
+# line of that file to be used as the name. The Debian default
+# is /etc/mailname.
+#myorigin = /etc/mailname
+smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
+biff = no
+# appending .domain is the MUA's job.
+append_dot_mydomain = no
+# Uncomment the next line to generate "delayed mail" warnings
+#delay_warning_time = 4h
+readme_directory = no
+# See http://www.postfix.org/COMPATIBILITY_README.html - default to 3.6 on
+# fresh installs.
+compatibility_level = 3.6
+# TLS parameters
+smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
+smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
+smtpd_tls_security_level=may
+smtp_tls_CApath=/etc/ssl/certs
+smtp_tls_security_level=may
+smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
+smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
+myhostname = localhost
+alias_maps = hash:/etc/aliases
+alias_database = hash:/etc/aliases
+myorigin = /etc/mailname
+mydestination = $myhostname, /etc/mailname, localhost, localhost.localdomain, localhost
+relayhost = [smtp.gmail.com]:587
+mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
+mailbox_size_limit = 0
+recipient_delimiter = +
+inet_interfaces = loopback-only
+inet_protocols = all
+smtp_sasl_auth_enable = yes
+smtp_sasl_security_options = 
+smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
+smtp_use_tls = yes
+smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt