relay/ARCHITECTURE.md at 6b73f6933a0d7363ecac668fa9088455f7049aab

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cliffmccarthy 6b73f6933a docs: Add ARCHITECTURE.md with diagram of components

- For starters, this file is just a diagram of components of a
  chatmail server.  In the future, this document can grow into a more
  complete description of the architecture of the server, the
  deployment process, and the design intent behind what is and isn't
  in the code base.
- The name ARCHITECTURE.md is inspired by this article, which also has
  good suggestions about what to put in the file:
  https://matklad.github.io/2021/02/06/ARCHITECTURE.md.html

2025-08-19 13:04:33 +02:00

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This diagram shows components of the chatmail server:

graph LR;
    cmdeploy --> sshd;
    cron --> expunge;
    cron --> acmetool;
    cron --> chatmail-metrics;
    chatmail-metrics --> /var/www/html;
    acmetool --> certs;
    acmetool --> acmetool-redirector;
    acmetool-redirector --> certs;
    nginx --> /var/www/html;
    nginx --> certs;
    nginx --> newemail.py;
    nginx --> |465|postfix;
    nginx --> autoconfig.xml;
    nginx --> |993|dovecot;
    autoconfig.xml --> postfix;
    autoconfig.xml --> dovecot;
    postfix --> certs;
    postfix --> /home/vmail/mail;
    postfix --> |10080,10081|filtermail;
    postfix --> echobot;
    postfix --> |doveauth.socket|doveauth;
    dovecot --> certs;
    dovecot --> |doveauth.socket|doveauth;
    dovecot --> /home/vmail/mail;
    dovecot --> |metadata.socket|chatmail-metadata;
    doveauth --> /home/vmail/mail;
    expunge --> /home/vmail/mail;
    chatmail-metadata --> iroh-relay;

(Arrows in this diagram do not have a specific formal meaning; they signify "depends on", or "uses", or "sends data to", or just "relates to".)

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