WRT docker, it's part of the startup check/setup process, ensuring that you have storage for your containers locallly. /etc/sysconfig/docker-storage-setup has several settings that makes it easy to manage the (optional creation) and use of LVM by docker.
On Wed, Mar 21, 2018 at 2:33 PM, Patrick Hemmer <opensh...@stormcloud9.net> wrote: > Thanks for the info. > > I didn't notice that these *-storage-setup scripts were installed as part > of the prerequisites playbook in the ansible repo. So yes, they are > available before starting the deployment process. > > In the interim I had just deployed LVM manually and mounted a big volume > onto /var/lib/containers. Is there anything that details exactly what these > scripts are doing and why? Such as if using overlay2, why would one want to > use these scripts instead of a self-managed LVM mounted on > /var/lib/containers? LVM is easy, and I would think doing it manually > provides more flexibility than a script trying to guess what you want to > do, and is also easier to understand. Is this just meant to automate the > LVM tasks for people who are unfamiliar with it? > > -Patrick > > > > On 2018/3/21 02:03, Frederic Giloux wrote: > > Hi Patrick > > on RHEL 7.4 (and probably CENTOS 7.4) look at "man > container-storage-setup". Similar to docker-storage-setup it is a helper > script to configure the storage used by CRI-O. > In regard of the procedure I will second what Louis said: > - first prepare your nodes, including storage > - install and run your cluster > If you need later on to extend your storage capacity you can re-run the > script to add block devices. > > Regards, > > Frédéric > > On Wed, Mar 21, 2018 at 5:14 AM, Louis Santillan <lsant...@redhat.com> > wrote: > >> Patrick, >> >> First, I think you're misunderstanding the order of operations here just >> a bit. `docker-storage-setup` is part of the host preparation steps and >> happens on all nodes in the cluster before running the Advanced Installer. >> The Container and PaaS Practice's Consulting Playbooks [0] might help your >> understanding. >> >> I'm not fully intimate with CRI-O's internals but It looks like there are >> some options to set [1]. I don't see any further details on GH so I >> suspect those details are forthcoming. >> >> [0] http://v1.uncontained.io/playbooks/installation/ >> [1] https://github.com/kubernetes-incubator/cri-o/blob/ >> master/docs/crio.conf.5.md >> >> ___________________________________________________ >> >> LOUIS P. SANTILLAN >> >> Architect, OPENSHIFT, MIDDLEWARE & DEVOPS >> >> Red Hat Consulting, <https://www.redhat.com/> Container and PaaS Practice >> >> lsant...@redhat.com M: 3236334854 >> <https://red.ht/sig> >> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted> >> >> >> >> On Tue, Mar 20, 2018 at 7:53 AM, Patrick Hemmer < >> opensh...@stormcloud9.net> wrote: >> >>> How are you supposed to add additional storage to the host when using >>> the advanced installation procedure (the openshift-ansible repo)? >>> >>> The documentation (https://docs.openshift.com/co >>> ntainer-platform/3.9/install_config/install/host_preparation >>> .html#configuring-docker-storage) says that you have to use this >>> "docker-storage-setup" script, which gets installed during the ansible run. >>> So it seems like ansible would need to pause after installing the script so >>> the user can go run it. But this is just wrong as that's not how ansible >>> should be used. >>> >>> Additionally the naming of that script sounds like it's docker specific. >>> How should one handle CRI-O storage? Or does that not need anything special >>> on top of just having a big /var ? >>> >>> -Patrick >>> >>> _______________________________________________ >>> users mailing list >>> users@lists.openshift.redhat.com >>> http://lists.openshift.redhat.com/openshiftmm/listinfo/users >>> >>> >> >> _______________________________________________ >> users mailing list >> users@lists.openshift.redhat.com >> http://lists.openshift.redhat.com/openshiftmm/listinfo/users >> >> > > > -- > *Frédéric Giloux* > Principal App Dev Consultant > Red Hat Germany > > fgil...@redhat.com M: +49-174-172-4661 > > redhat.com | TRIED. TESTED. TRUSTED. | redhat.com/trusted > ________________________________________________________________________ > Red Hat GmbH, http://www.de.redhat.com/ Sitz: Grasbrunn, > Handelsregister: Amtsgericht München, HRB 153243 > Geschäftsführer: Paul Argiry, Charles Cachera, Michael Cunningham, Michael > O'Neill > > > > _______________________________________________ > users mailing list > users@lists.openshift.redhat.com > http://lists.openshift.redhat.com/openshiftmm/listinfo/users > > -- Judd Maltin T: 917-882-1270 Money rewards people who have shut down (or are born without) that part of themselves which empathizes and is made uncomfortable by exploiting and harming others. In a system where money rewards sociopathy and money equals power, that means we necessarily wind up in a system that is ruled by sociopaths.
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