Add Docker setup with SMTP mail and logging

.dockerignore

@@ -0,0 +1,13 @@
+.git
+.gitignore
+Dockerfile
+*.swp
+*.swo
+*.log
+node_modules
+**/node_modules
+tmp
+temp
+*.zip
+*.tar.gz
+*.tgz

Dockerfile

@@ -0,0 +1,34 @@
+FROM php:8.2-apache
+
+# Install lightweight SMTP client for PHP mail()
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends msmtp ca-certificates \
+ && rm -rf /var/lib/apt/lists/*
+
+# Configure PHP to use msmtp as sendmail
+RUN echo "sendmail_path = /usr/sbin/msmtp -t -i" > /usr/local/etc/php/conf.d/sendmail.ini
+
+# Emit structured access logs with latency to stdout
+RUN set -eux; \
+    { \
+      echo 'LogFormat "ts=%{%Y-%m-%dT%H:%M:%S%z}t client=%a forwardedfor=\\"%{X-Forwarded-For}i\\" host=%v method=%m uri=%U query=\\"%q\\" protocol=%H status=%>s bytes=%O referer=\\"%{Referer}i\\" agent=\\"%{User-Agent}i\\" response_time_us=%D" logreq'; \
+    } > /etc/apache2/conf-available/logging.conf \
+ && a2enconf logging \
+ && a2disconf other-vhosts-access-log \
+ && sed -i '/CustomLog /d;/ErrorLog /d' /etc/apache2/sites-available/000-default.conf \
+ && { \
+      echo 'ErrorLog /proc/self/fd/2'; \
+      echo 'CustomLog /proc/self/fd/1 logreq'; \
+    } >> /etc/apache2/sites-available/000-default.conf
+
+# Copy site into the Apache web root
+COPY . /var/www/html/
+
+# Entrypoint to template msmtp config from env vars, then hand off to stock PHP entrypoint
+COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
+RUN chmod +x /usr/local/bin/docker-entrypoint.sh
+ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
+CMD ["apache2-foreground"]
+
+# Expose HTTP port
+EXPOSE 80

docker-entrypoint.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+set -e
+
+# If SMTP vars are provided, write an msmtp config for authenticated SMTP
+if [ -n "${SMTP_HOST:-}" ]; then
+  : "${SMTP_PORT:=587}"
+  : "${SMTP_FROM:=noreply@example.com}"
+  : "${SMTP_TLS:=on}"
+
+  cat > /etc/msmtprc <<EOF
+account default
+host ${SMTP_HOST}
+port ${SMTP_PORT}
+from ${SMTP_FROM}
+auth on
+user ${SMTP_USER:-}
+password ${SMTP_PASSWORD:-}
+tls ${SMTP_TLS}
+tls_trust_file /etc/ssl/certs/ca-certificates.crt
+logfile /var/log/msmtp.log
+EOF
+
+  chmod 600 /etc/msmtprc
+fi
+
+exec docker-php-entrypoint "$@"

mail/contact_me.php

@@ -16,10 +16,11 @@ $phone = $_POST['phone'];
 $message = $_POST['message'];
 	
 // Create the email and send the message
-$to = 'yourname@yourdomain.com'; // Add your email address inbetween the '' replacing yourname@yourdomain.com - This is where the form will send a message to.
+$to = getenv('MAIL_TO') ? getenv('MAIL_TO') : 'yourname@yourdomain.com'; // Override with MAIL_TO env var
+$fromAddress = getenv('MAIL_FROM') ? getenv('MAIL_FROM') : 'noreply@yourdomain.com';
 $email_subject = "Website Contact Form:  $name";
 $email_body = "You have received a new message from your website contact form.\n\n"."Here are the details:\n\nName: $name\n\nEmail: $email_address\n\nPhone: $phone\n\nMessage:\n$message";
-$headers = "From: noreply@yourdomain.com\n"; // This is the email address the generated message will be from. We recommend using something like noreply@yourdomain.com.
+$headers = "From: $fromAddress\n"; // This is the email address the generated message will be from. We recommend using something like noreply@yourdomain.com.
 $headers .= "Reply-To: $email_address";	
 mail($to,$email_subject,$email_body,$headers);
 return true;