automation/ansible/README.md

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## Required packages on remote
Python (installed with `pip` for user `adrien`):
* docker
* docker-compose
* pymysql
TODO: Ansible task to install that before the rest
## Configure mailing
When I send mails from the container with `php`, with current `msmtp` config, it fails if the recipient isn't `@luxeylab.net`.
Host `mail.log`:
# mail('adrien@yopmai.com'...) in container
Apr 2 09:07:56 Serenity postfix/smtpd[22617]: connect from unknown[172.27.1.2]
Apr 2 09:07:56 Serenity postfix/smtpd[22617]: NOQUEUE: reject: RCPT from unknown[172.27.1.2]: 454 4.7.1 <adrien@yopmail.com>: Relay access denied; from=<php@www.rennesdesbois.fr> to=<adrien@yopmail.com> proto=ESMTP helo=<localhost>
Apr 2 09:07:56 Serenity postfix/smtpd[22617]: lost connection after DATA from unknown[172.27.1.2]
Apr 2 09:07:56 Serenity postfix/smtpd[22617]: disconnect from unknown[172.27.1.2] ehlo=1 mail=1 rcpt=0/1 data=0/1 commands=2/4
# mail('adrien@yopmai.com'...) on host
Apr 2 09:10:33 Serenity postfix/cleanup[27364]: 5DB1D3CCDA: message-id=<20200402071033.5DB1D3CCDA@luxeylab.net>
Apr 2 09:10:33 Serenity postfix/qmgr[2066]: 5DB1D3CCDA: from=<adrien@luxeylab.net>, size=286, nrcpt=1 (queue active)
Apr 2 09:10:33 Serenity postfix/smtp[27366]: 5DB1D3CCDA: to=<adrien@yopmail.com>, relay=smtp.yopmail.com[87.98.164.155]:25, delay=0.68, delays=0.35/0/0.23/0.09, dsn=2.0.0, status=sent (250 mail saved)
Apr 2 09:10:33 Serenity postfix/qmgr[2066]: 5DB1D3CCDA: removed
# mail('adrien@luxeylab.net'...) in container
Apr 2 08:08:12 Serenity postfix/smtpd[2647]: connect from unknown[172.27.1.2]
Apr 2 08:08:12 Serenity postfix/smtpd[2647]: 6BA723CCD8: client=unknown[172.27.1.2]
Apr 2 08:08:12 Serenity postfix/cleanup[5829]: 6BA723CCD8: message-id=<>
Apr 2 08:08:12 Serenity postfix/smtpd[2647]: disconnect from unknown[172.27.1.2] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
Apr 2 08:08:12 Serenity postfix/qmgr[2066]: 6BA723CCD8: from=<php@www.rennesdesbois.fr>, size=290, nrcpt=1 (queue active)
Apr 2 08:08:13 Serenity postfix/smtp[5831]: 6BA723CCD8: to=<adrien.luxey@gmail.com>, orig_to=<adrien@luxeylab.net>, relay=gmail-smtp-in.l.google.com[74.125.133.26]:25, delay=0.79, delays=0.23/0.03/0.11/0.42, dsn=2.0.0, status=sent (250 2.0.0 OK 1585807693 130si4035771wma.123 - gsmtp)
Apr 2 08:08:13 Serenity postfix/qmgr[2066]: 6BA723CCD8: removed
Good docs on the topic:
* [Explains postfix on Host+ssmtp in Docker in detail, poorly written](https://medium.com/@thilinaviraj950/configure-and-use-host-base-postfix-to-send-emails-from-a-container-18cd279fc460)
* [Another one](https://www.michelebologna.net/2019/send-an-email-from-a-docker-container/)
I needed to add Docker's network (`172.0.0.0/8`) to `mynetworks` in `/etc/postfix/main.cf`. Also `inet_interfaces` would have had to be changed if Arthur didn't put it to `all`.
**Now solved.**