What scenario did you have in mind? (Which resource do you expect to be problematic?)
On Wed, Jul 16, 2014 at 2:27 PM, Nayeem Syed <nay...@cronycle.com> wrote: > Hi Michael, > > I was considering also using cloud-formation for setting up Mesos > clusters. So the update is only possible for AutoScaling? Thats a bit > limiting isnt it? What if you need to update other resources? > > > On Wed, Jul 16, 2014 at 5:47 PM, Michael Babineau < > michael.babin...@gmail.com> wrote: > >> I manage my Mesos clusters via CloudFormation. Upgrades are pretty >> straightforward -- just apply an updated template (and/or parameters) to an >> existing stack. For now, I manually terminate instances (one at a time) and >> let the auto scaling groups bring up replacements with the new >> configuration. >> >> This should be automated with an UpdatePolicy >> <http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-updatepolicy.html>, >> I just haven't taken the time yet to implement and test it. >> >> By the way, the templates are open source, so feel free to use or steal >> from them: https://github.com/thefactory/cloudformation-mesos >> >> As Dick mentioned, however, this still doesn't cover ad-hoc maintenance. >> But it should make provisioning much less of a headache :) >> >> >> On Wed, Jul 16, 2014 at 4:35 AM, Nayeem Syed <nay...@cronycle.com> wrote: >> >>> you mean ad-hoc maintenance formations wont help? >>> >>> probably should have it deployed using formations initially and use >>> user-data to customize the server with specific installs etc? >>> >>> >>> On Wed, Jul 16, 2014 at 12:15 PM, Dick Davies <d...@hellooperator.net> >>> wrote: >>> >>>> For provisioning yes , for ad-hoc maintenance tasks won't help at all. >>>> >>>> On 16 July 2014 11:29, Nayeem Syed <nay...@cronycle.com> wrote: >>>> > Thanks for those! I will give it a try to get some deployment through >>>> > ansible. >>>> > >>>> > I was also wondering if Cloudformation might be good for this? As it >>>> clears >>>> > up the things very cleanly when you remove the formation? Though I >>>> find >>>> > their JSON file very difficult to navigate and their Update Feature >>>> doesnt >>>> > seem to work too well.. >>>> > >>>> > >>>> > On Wed, Jul 16, 2014 at 10:46 AM, Dick Davies <d...@hellooperator.net >>>> > >>>> > wrote: >>>> >> >>>> >> I'd like to show you my playbooks, but unfortunately they're for a >>>> client >>>> >> - I can vouch for it being very easy to add nodes to a cluster etc. >>>> if you >>>> >> just have to edit an 'inventory' file and add IPs into the correct >>>> groups. >>>> >> >>>> >> (NB: puppet and chef will automate your infrastructure too, it's just >>>> >> they're >>>> >> not as useful for things like rolling deployments in my experience >>>> because >>>> >> they're agent based, so it's harder to control when each server will >>>> >> update and >>>> >> restart services). >>>> >> >>>> >> A quick Google found: >>>> >> >>>> >> >>>> >> >>>> http://blog.michaelhamrah.com/2014/06/setting-up-a-multi-node-mesos-cluster-running-docker-haproxy-and-marathon-with-ansible/ >>>> >> >>>> >> which might be useful. >>>> >> >>>> >> The play books linked from that post are for bootstrapping a >>>> cluster, but >>>> >> it's >>>> >> pretty simple to add a second playbook to manage rolling deploys etc. >>>> >> There's some Ansible examples of rolling deploys (not Mesos specific) >>>> >> at : >>>> >> >>>> >> http://docs.ansible.com/guide_rolling_upgrade.html >>>> >> >>>> >> >>>> >> On 15 July 2014 14:41, Nayeem Syed <nay...@cronycle.com> wrote: >>>> >> > thanks! >>>> >> > >>>> >> > do you have some examples of how you are using it with ansible? i >>>> dont >>>> >> > have >>>> >> > specific preferences, whatever works really. >>>> >> > >>>> >> > >>>> >> > On Tue, Jul 15, 2014 at 2:35 PM, Dick Davies < >>>> d...@hellooperator.net> >>>> >> > wrote: >>>> >> >> >>>> >> >> You want a rolling restart i'd guess, unless you want downtime >>>> for some >>>> >> >> reason. >>>> >> >> >>>> >> >> We use Ansible, it's pretty nice. >>>> >> >> >>>> >> >> On 15 July 2014 10:47, Nayeem Syed <nay...@cronycle.com> wrote: >>>> >> >> > whats the best way to update mesos master instances. eg I want >>>> to >>>> >> >> > update >>>> >> >> > things in there, install new frameworks, but at the moment I am >>>> >> >> > ssh'ing >>>> >> >> > to >>>> >> >> > the instances and installing them one by one. that feels wrong, >>>> >> >> > shouldnt >>>> >> >> > it >>>> >> >> > be done in parallel to all the instances? >>>> >> >> > >>>> >> >> > what do people currently do to keep all the masters in sync? >>>> >> > >>>> >> > >>>> > >>>> > >>>> >>> >>> >> >
