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https://github.com/j-siu/docker_postfix

Docker - Postfix with sasldb2 support
https://github.com/j-siu/docker_postfix

docker postfix

Last synced: about 1 month ago
JSON representation

Docker - Postfix with sasldb2 support

Host: GitHub
URL: https://github.com/j-siu/docker_postfix
Owner: J-Siu
License: mit
Created: 2020-07-07T20:34:08.000Z (over 4 years ago)
Default Branch: master
Last Pushed: 2024-08-28T05:12:18.000Z (3 months ago)
Last Synced: 2024-10-09T09:48:40.364Z (about 1 month ago)
Topics: docker, postfix
Language: Dockerfile
Size: 47.9 KB
Stars: 2
Watchers: 2
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

Awesome Lists containing this project

README

# Docker - Postfix with cyrus/sasldb2 support [![Paypal donate](https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif)](https://www.paypal.com/donate/?business=HZF49NM9D35SJ&no_recurring=0&currency_code=CAD)

> Berkeley DB (DBD) is no longer supported on Alpine Linux. https://wiki.alpinelinux.org/wiki/Release_Notes_for_Alpine_3.13.0#Deprecation_of_Berkeley_DB_.28BDB.29

### Build

```sh
git clone https://github.com/J-Siu/docker_postfix.git
cd docker_postfix
docker build -t jsiu/postfix .
```

### Usage

#### Host Directories and Volume Mapping

Host|Inside Container|Mapping Required|Usage
---|---|---|---
${POSTFIX_CNF}|/postfix|Yes|postfix configuration volume
${POSTFIX_HOSTNAME}|hostname|no|hostname inside container
${TZ}|${P_TZ}|no|time zone

#### Postfix Configuration

##### Configuration Volume

Container will automatically exit if no configuration volume (`${POSTFIX_CNF}`), or if configuration volume is empty.

The permission and ownership of `${POSTFIX_CNF}` is not important. Container `start.sh` copies `/postfix` to `/etc/` and applies ownership and permission to `/etc/postfix` accordingly.

Postfix configuration come with Alpine package install is included in the container at `/postfix.pkg.tgz`. Retrieve it with following commands:

```docker
docker run -d -it --rm --name tmp jsiu/postfix sh
docker cp tmp:/postfix.pkg.tgz .
docker stop tmp
```

##### aliases

If `aliases` is used, it should be placed at `${POSTFIX_CNF}/aliases`. Container `start.sh` script will execute `newaliases`.

In `main.cf`:

```ini
alias_maps = hash:/etc/postfix/aliases
alias_database = hash:/etc/postfix/aliases
```

##### sasldb2

If sasldb2 is to be used, `sasldb2` and `smtpd.conf` should be placed in `${POSTFIX_CNF}/sasl2/`. Container `start.sh` script will copy them to `/etc/sasl2/`.

Sample `smtpd.conf` content:

```ini
pwcheck_method: auxprop
auxprop_plugin: sasldb
mech_list: PLAIN LOGIN
```

#### Logs

There are two ways to log to journald.

##### /dev/log

Mount host `/dev/log` to container `/dev/log` to enable postfix logs to host logging system.

##### /dev/stdout

To have postfix log to stdout:

Add following to `master.cf`

```ini
postlog unix-dgram n - n - 1 postlogd
```

Add following to `main.cf`

```ini
maillog_file = /dev/stdout
```

Show postfix log from journald:

```sh
journalctl -t
journalctl -t postfix
```

#### Run

```docker
docker run \
-d \
-e P_TZ=America/New_York \
-v /home/jsiu/postfix:/postfix \
-v /dev/log:/dev/log
-p 25 \
-p 587 \
jsiu/postfix
```

#### Compose

Get docker-compose template from image:

```docker
docker run --rm jsiu/postfix cat /docker-compose.yml > docker-compose.yml
docker run --rm jsiu/postfix cat /env > env
```

Fill in `.env` according to your environment.

```sh
docker-compose up
```

### Repository

- [docker_postfix](https://github.com/J-Siu/docker_postfix)

### Contributors

- [John Sing Dao Siu](https://github.com/J-Siu)

### Change Log

- 1.0
- Initial commit.
- 1.1
- Dockerfile remove apk update
- start.sh
- Use exec so start.sh can exit
- 3.5.3-r0
- Adopt Postfix version
- Postfix version 3.5.3-r0
- 3.5.4-r0
- Auto update to 3.5.4-r0
- 3.5.4-r0-p0
- Remove cyrus-sasl-plain
- 3.5.6-r0
- Auto update to 3.5.6-r0
- 3.5.7-r0
- Auto update to 3.5.7-r0
- 3.5.7-r2
- Auto update to 3.5.7-r2
- 3.5.8-r0
- Auto update to 3.5.8-r0
- 3.5.8-r0-p1
- Create /etc/sasl2 directory
- 3.5.8-r0-p2
- Fix start.sh
- 3.5.9-r0
- Auto update to 3.5.9-r0
- 3.5.9-r0-p0
- Force rebuild to use cyrus-sasl 2.1.27-r12
- 3.6.0-r0
- Auto update to 3.6.0-r0
- 3.6.1-r0
- Auto update to 3.6.1-r0
- 3.7.0-r2
- Auto update to 3.7.0-r2
- 3.7.0-r2-p1
- Add docker push github workflow
- 3.7.1-r1
- Auto update to 3.7.1-r1
- 3.7.2-r0
- Auto update to 3.7.2-r0
- 3.7.2-r1
- Auto update to 3.7.2-r1
- 3.7.4-r0
- Auto update to 3.7.4-r0
- 3.8.0-r1
- Auto update to 3.8.0-r1
- 3.8.1-r0
- Auto update to 3.8.1-r0
- 3.9.0-r1
- Auto update to 3.9.0-r1

### License

The MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.