yeah once they are deployed it's easier, the main thing is Ansible is not a placement engine (or someone might call this a "scheduler")
CoreOS is a different animal for a different purpose. On Mon, Jun 16, 2014 at 9:45 PM, Paul Durivage <[email protected]> wrote: > I wrote the Docker dynamic inventory script. It returns containers by > host -- all you have to do is declare each Docker URL. I think that does > what you're looking for. > > https://github.com/ansible/ansible/blob/devel/plugins/inventory/docker.py > > > > > On Mon, Jun 16, 2014 at 3:10 PM, Laurent PETIT <[email protected]> > wrote: > >> >> >> Le lundi 16 juin 2014, Paul Durivage <[email protected]> a écrit : >> >> IMHO, the most exciting system out there for running Docker applications >>> is CoreOS, a Linux distribution that is essentially just Linux + systemd + >>> Docker + fleetd + etcd. There guys really have something interesting >>> going. I have every intention of writing some modules that incorporate >>> etcd (a replicated key/value store meant for service discovery) and fleetd >>> (a modern cluster manager that seems to do a lot right). >>> >>> Deis also shows a lot of promise. >>> >>> The Docker module's fine for deploying containers an arbitrary number of >>> Docker hosts. Sounds like you're looking for something PaaS-like if you're >>> not pleased with today's Docker support. >>> >> >> I cannot say I'm not pleased yet, in fact I hope I will ! :-) >> >> The docker module is host-centric. I'd like to try an approach where I >> use it in a more instance-centric way, since all my instances are made >> available via a sub domain. >> >> Only thing I don't know yet is if I can know from the gathered facts >> which instance is currently running on which host, and from this knowledge, >> for each declared instance in turn, whether I have to do a remove before >> doing an update/install. >> >> >>> >>> >>> On Mon, Jun 16, 2014 at 12:44 AM, Laurent PETIT <[email protected] >>> > wrote: >>> >>>> >>>> >>>> Le lundi 16 juin 2014, Michael DeHaan <[email protected]> a écrit : >>>> >>>> It's fine to use Ansible to build docker images, but I'm not sure it's >>>> a good placement engine for deciding where containers run. >>>> >>>> >>>> Then what is the ansible-docker module good for? >>>> >>>> >>>> Ideally you should some set of software that is trying to be a "cloud" >>>> manager for Docker. >>>> >>>> From what I've heard, maybe this is Flynn or Shipyard -- I don't know - >>>> I haven't tried them. >>>> >>>> >>>> Interesting, I'll look at them more closely. >>>> >>>> >>>> >>>> Specifying it in Ansible just seems really rough, keeping manual lists >>>> of what is running where that you have to start and/or remove. >>>> >>>> >>>> It's moving the data of the containers around which also may be >>>> challenging, indeed. >>>> >>>> >>>> >>>> Anyway, somewhat off topic for this list. >>>> >>>> I'm waiting for their tech to evolve myself, then it will fit in closer >>>> to the other cloud models, feeling more like other hypervisors. >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> On Sun, Jun 15, 2014 at 5:07 PM, Laurent PETIT <[email protected] >>>> > wrote: >>>> >>>> Hello, >>>> >>>> I'm trying to figure out how to best stay declarative while being able >>>> to have my system properly reconfigure itself in the following situation: >>>> >>>> - I have a bunch of docker hosts >>>> - I have a bunch of docker containers. Each docker container hosts a >>>> service for a customer and is reachable from a specific subdomain of my >>>> company. >>>> - I have a frontal nginx container doing virtual hosting to redirect >>>> traffic for a specific container to its current host+port. >>>> >>>> So I have docker-hosts, and containers virtual hosts. >>>> >>>> I'd like to write the configuration so that I have entries for the >>>> virtual hosts, with a parameter specifying on which docker host they must >>>> be set. >>>> >>>> Now, if I move a docker container from docker host A to docker host B >>>> in the configuration, when I run the playbook I must ensure that the >>>> following is done: >>>> >>>> - if the docker container is currently running on host B (in the >>>> example it is running on host A), then stop the container on host A >>>> (to keep things simple, currently the containers data are in a >>>> centrally accessible place - from docker hosts - but I must ensure only one >>>> container at a time accesses the data - thus killing from A before starting >>>> from B). >>>> - start the container from B >>>> ( - Reconfigure nginx and restart if necessary -> not a problem atm) >>>> >>>> Do you have advices on how best to do this? >>>> >>>> My current idea involves: >>>> - creating entries in the inventory for each docker container >>>> virtualhost >>>> - for each virtualhost, finding through docker hosts facts analysis >>>> where it is running (if at all), and then removing it if running in another >>>> host than what the config currently states >>>> >>>> Does that make sense? Will it be easy to do? (still newbie here, so >>>> maybe not having the right grasp of what's easy or not with ansible) >>>> >>>> Thanks in advance, >>>> >>>> -- >>>> Laurent >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Ansible Project" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To post to this group, send email to [email protected]. >>>> To view this discussion on the web visit >>>> <https://groups.google.com/d/msgid/ansible-project/abe41851-bcad-4dea-8211-1f9e40e9304d%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/ansible-project/CAKVVxfq6R9mrTg-iOTj%2BbUS1mKKtA8TNpuBh7OT0h%3DMq0ys_sw%40mail.gmail.com >>>> <https://groups.google.com/d/msgid/ansible-project/CAKVVxfq6R9mrTg-iOTj%2BbUS1mKKtA8TNpuBh7OT0h%3DMq0ys_sw%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Ansible Project" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/ansible-project/CAK6JQEHZ-Qs7PjzgJozoo-cxMPYGBFgm6R7XuYXmxjkWbPOeJw%40mail.gmail.com >>> <https://groups.google.com/d/msgid/ansible-project/CAK6JQEHZ-Qs7PjzgJozoo-cxMPYGBFgm6R7XuYXmxjkWbPOeJw%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "Ansible Project" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/ansible-project/CAKVVxfp8N0eOLBqd8QRJh1Mv7VZSDiPSpOyYajWMSTR5ONR%3D_Q%40mail.gmail.com >> <https://groups.google.com/d/msgid/ansible-project/CAKVVxfp8N0eOLBqd8QRJh1Mv7VZSDiPSpOyYajWMSTR5ONR%3D_Q%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google Groups > "Ansible Project" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/ansible-project/CAK6JQEE%3DWm7wBaJMvFMMmsaua9L6-Xv_j_2cXKS3VELFtvHrHQ%40mail.gmail.com > <https://groups.google.com/d/msgid/ansible-project/CAK6JQEE%3DWm7wBaJMvFMMmsaua9L6-Xv_j_2cXKS3VELFtvHrHQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Ansible Project" group. 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