/docker-spamassassin

Docker Spamassassin Spam filtering based on Alpine Linux

Primary LanguageDockerfileMIT LicenseMIT

github.com/tiredofit/docker-spamassassin

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About

This will build a Docker Image for Spamassassin - A message content scanner for spam.

Maintainer

Table of Contents

Prerequisites and Assumptions

  • This image doesn't do much on it's own, you must use a complemenary service to pass messages or data to it via port 783.

Installation

Build from Source

Clone this repository and build the image with docker build -t (imagename) .

Prebuilt Images

Builds of the image are available on Docker Hub

docker pull docker.io/tiredofit/spamassassin:(imagetag)

Builds of the image are also available on the Github Container Registry

docker pull ghcr.io/tiredofit/docker-spamassassin:(imagetag)

The following image tags are available along with their tagged release based on what's written in the Changelog:

Container OS Tag
Alpine :latest

Multi Architecture

Images are built primarily for amd64 architecture, and may also include builds for arm/v7, arm64 and others. These variants are all unsupported. Consider sponsoring my work so that I can work with various hardware. To see if this image supports multiple architecures, type docker manifest (image):(tag)

Configuration

Quick Start

Persistent Storage

The following directories are used for configuration and can be mapped for persistent storage.

Directory Description
/logs/ Spamassassin Logs
/config/ Configuration
/data/ Volatile Data (Downloaded Patterns)

Environment Variables

Base Images used

This image relies on an Alpine Linux base image that relies on an init system for added capabilities. Outgoing SMTP capabilities are handlded via msmtp. Individual container performance monitoring is performed by zabbix-agent. Additional tools include: bash,curl,less,logrotate,nano,vim.

Be sure to view the following repositories to understand all the customizable options:

Image Description
OS Base Customized Image based on Alpine Linux
Parameter Description Default
CHILD_MAX Max Children 5
CHILD_MAX_CONNECTIONS Max connections per child 200
CHILD_MAX_SPARE Max Spare Children 2
CHILD_MIN Minimum Child Process 1
CHILD_MIN_SPARE Minimum Spare Children 1
CONFIG_PATH Config directory /config/
DATA_PATH Updates / Rulesets directory /data/
ENABLE_LEARNING Enable Learning/Reporting TRUE
ENABLE_ROUND_ROBIN Enable Roundrobin Forking for childs FALSE
ENABLE_UPDATES Enable Ruleset Updates TRUE
LISTEN_PORT TCP Listen Port 783
LOG_FILE Log File spamassassin.log
LOG_PATH Log Logcation /logs/
PID_FILE PID File spamassassin.pid
PID_PATH PID Path /var/run/spamassassin/
TIMEOUT_CHILD Child Timeout in Seconds 300
TIMEOUT_IDENT Ident Timeout in Seconds 5
TIMEOUT_TCP TCP Timeout in Seconds 30
UPDATE_PERIOD Cron Expression when to perform updates 15 23 * * *

Networking

Port Description
783 Spamassassin Listening Port

Maintenance

Shell Access

For debugging and maintenance purposes you may want access the containers shell.

docker exec -it (whatever your container name is) bash

Support

These images were built to serve a specific need in a production environment and gradually have had more functionality added based on requests from the community.

Usage

  • The Discussions board is a great place for working with the community on tips and tricks of using this image.
  • Consider sponsoring me for personalized support

Bugfixes

  • Please, submit a Bug Report if something isn't working as expected. I'll do my best to issue a fix in short order.

Feature Requests

  • Feel free to submit a feature request, however there is no guarantee that it will be added, or at what timeline.
  • Consider sponsoring me regarding development of features.

Updates

  • Best effort to track upstream changes, More priority if I am actively using the image in a production environment.
  • Consider sponsoring me for up to date releases.

License

MIT. See LICENSE for more details.

References