phoenix.server occassionally stops

[Elly6]

What's the best way to automatically redeploy the phoenix.server when it stops? If I wanted to leave magnetissimo unattended for a prolonged period of time.

[trigun0x2]

systemd and upstart are both good for Linux. But determining the cause would be better :P

Jeffrey Tong

 / I make companies

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On Wed, Feb 01, 2017 at 6:20 PM Elly6

< mailto:Elly6 notifications@github.com

wrote:

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What's the best way to automatically redeploy the phoenix.server when it stops? If I wanted to leave magnetissimo unattended for a prolonged period of time.

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[apexo]

systemd does not magically help. At least for me, the beam process stays around, even when the server is down.

I'm currently using a script like this:

#!/bin/sh
while true; do
    if curl -s http://localhost:4000 >/dev/null; then
        true
    else
        systemctl restart magnetissimo.service
    fi
    sleep 120
done

[apexo]

… and a systemd unit (/etc/systemd/system/magnetissimo.service) like this:

[Unit]
Description=magnetissimo service
After=network.target
[Service]
Type=simple
ExecStart=/usr/local/bin/mix phoenix.server
WorkingDirectory=/home/user/magnetissimo
Restart=always
RestartSec=30s
User=user
Group=user
SendSIGKILL=no
[Install]
WantedBy=multi-user.target

[Elly6]

@apexo

Thanks! A bash loop makes sense, I'll use your script. Though, I thought phoenix.server might have some options we could pass when deploying the server. (e.g. -p, -r, --persist, --ignore-errors)

I'll leave this issue open a bit longer if anyone has other suggestions.

[tchoutri]

Thanks for the systemd unit, @apexo. May I add it to the deployment documentation?

[apexo]

Yes, of course. Sorry for the late response.

[apexo]

May want to get rid of the "Group=user", it's kind of useless.

[tchoutri]

Thank you very much :)