Mailhog, I can't set maildir and have persist data

mferraramiki · January 26, 2021, 5:28pm

Hi all,
I installed on Oracle Linux 8.3 Docker CE Engine

After I created a volume with this command:
docker volume create docker-maildir

I installed the container MAILHOG and force to use my volume with this command:
docker run -d -p 25:1025 -p 2080:8025 -v docker-maildir:/maildir --name mailhog --restart unless-stopped mailhog/mailhog

but if I restart the container I lost the inbox emails.

I tried to access to the container with the command:
docker exec -it mailhog /bin/sh

But I don’t see any emails in the folders.

How can set -storage?

github.com

mailhog/MailHog/blob/master/docs/CONFIG.md

Configuring MailHog
===================

You can configure MailHog using command line options or environment variables:

| Environment         | Command line    | Default         | Description
| ------------------- | --------------- | --------------- | -----------
| MH_CORS_ORIGIN      | -cors-origin    |                 | If set, a Access-Control-Allow-Origin header is returned for API endpoints
| MH_HOSTNAME         | -hostname       | mailhog.example | Hostname to use for EHLO/HELO and message IDs
| MH_API_BIND_ADDR    | -api-bind-addr  | 0.0.0.0:8025    | Interface and port for HTTP API server to bind to
| MH_UI_BIND_ADDR     | -ui-bind-addr   | 0.0.0.0:8025    | Interface and port for HTTP UI server to bind to
| MH_MAILDIR_PATH     | -maildir-path   |                 | Maildir path (for maildir storage backend)
| MH_MONGO_COLLECTION | -mongo-coll     | messages        | MongoDB collection name for message storage
| MH_MONGO_DB         | -mongo-db       | mailhog         | MongoDB database name for message storage
| MH_MONGO_URI        | -mongo-uri      | 127.0.0.1:27017 | MongoDB host and port
| MH_SMTP_BIND_ADDR   | -smtp-bind-addr | 0.0.0.0:1025    | Interface and port for SMTP server to bind to
| MH_STORAGE          | -storage        | memory          | Set message storage: memory / mongodb / maildir
| MH_OUTGOING_SMTP    | -outgoing-smtp  |                 | JSON file defining outgoing SMTP servers
| MH_UI_WEB_PATH      | -ui-web-path    |                 | WebPath under which the ui is served (without leading or trailing slahes), e.g. 'mailhog'
| MH_AUTH_FILE        | -auth-file      |                 | A username:bcryptpw mapping file

This file has been truncated. show original

terpz · January 27, 2021, 1:54pm

I think this should maybe be asked on the mailhog github, since its not directly docker related.
but, reading what you supplied, i see that:

| Environment         | Command line    | Default         | Description
  MH_STORAGE          | -storage        | memory

so maybe change that variable to “maildir”, else it seems like it will save to memory

mferraramiki · January 27, 2021, 1:58pm

Hi tepz,
thank you for your reply.

I solved with this command:

docker run -d -p 25:1025 -p 2080:8025 -v mailhog-maildir:/home/mailhog/maildir -v mailhog-smtpconf:/smtp_conf -e MH_STORAGE=maildir -e MH_MAILDIR_PATH=maildir -e MH_OUTGOING_SMTP=/smtp_conf/smtp.json --restart unless-stopped --name mailhog mailhog/mailhog

But I have to set the permission for the volume as 777 otherwise from mailhog I can’t write emails to the volume mounted.

Marco

terpz · January 27, 2021, 2:03pm

For the volume?
I would set the path to /maildir, so it isnt in the home/mailhog path, but again, its just my 2 cents

mferraramiki · January 27, 2021, 2:40pm

Hi Martin,
thank you so much for your reply and your time.

I started few time ago to studi docker, and I’m not very expert.

I mapped correctly the folder, /mail dir on the container is in /home/mailhog/maildir and it is mapped correctly with my volume mailhog-maildir.

Now, is I set the permission on _data folder for mailhog-maildir as 777 from container I can write on it, also I can’t.

Thanks
Marco