Docker container disaster recovery

Question

I'm trying to run a service that does cron tasks using celery and it is very critical for our business. That certain container that runs the celery sometimes exits unexpectedly and I'm not being notified of the exit as well.

I have two questions:

How can I be notified via e-mail if one of my container exits?
How to do a disaster recovery for example if that container exits or stops another container will start and continue the process of that exited container

score 2 · Answer 1 · edited May 23 '17 at 11:54

2

you can start the docker container with the parameter:

--restart="always"

for example:

docker run --restart="always" <IMAGE>

for your first Q i would suggest to look into that link:

How to programmatically monitor if a docker container exited?

edited May 23 '17 at 11:54

Community

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answered May 15 '17 at 07:16

Gabbax0r

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On the link that you gave.. docker `events` can be helpful but it only does pure monitoring and no trigger action – Dean Christian Armada May 15 '17 at 07:29
guess u have to write a script which minitors the status of your docker containers and trigger a request to your smtp. – Gabbax0r May 15 '17 at 07:30
Too troublesome, I believe there are third-party services like datadog for this. I might even checkout Swarm orchestration for this – Dean Christian Armada May 15 '17 at 07:43

Docker container disaster recovery

1 Answers1