Re: [ovirt-users] Educational use case question
On Thu, Apr 14, 2016 at 11:27 AM, Gianluca Cecchi wrote: > On Thu, Apr 14, 2016 at 8:15 AM, Yedidyah Bar David wrote: >> >> On Thu, Apr 14, 2016 at 5:18 AM, Michael Hall wrote: >> >> >> 3. NFS >> loop-back mounting nfs is considered risky, due to potential locking >> issues. Therefore, if you want to use NFS, you are better off doing >> something like this: >> > > Hello, > can you give more details about these potential locking issues? So that I > can reproduce Most of what I know about this is: https://lwn.net/Articles/595652/ > I have 2 little environments where I'm using this kind of setup. In one of > them the hypervisor is a physical server, in the other one the hypervisor is > itself a libvirt VM inside a Fedora 23 based laptop. oVirt version is 3.6.4 > on both. > > The test VM has 2 disks sda and sdb; all ovirt related stuff on sdb > > My raw steps for the lab have been, after setting up CentOS 7.2 OS, > disabling ipv6 and NetworkManager, putting SELinux to permissive and > enabling ovirt repo: selinux enforcing should work too, if it fails please open a bug. Thanks. You might have to set the right contexts for your local disks. > > NOTE: I also stop and disable firewalld > > My host is ovc72.localdomain.local and name of my future engine > shengine.localdomain.local > > yum -y update > > yum install ovirt-hosted-engine-setup ovirt-engine-appliance > > yum install rpcbind nfs-utils nfs-server > (some of them probably already pulled in as dependencies from previous > command) > > When I start from scratch the system > > pvcreate /dev/sdb > vgcreate OVIRT_DOMAIN /dev/sdb > lvcreate -n ISO_DOMAIN -L 5G OVIRT_DOMAIN > lvcreate -n SHE_DOMAIN -L 25G OVIRT_DOMAIN > lvcreate -n NFS_DOMAIN -l +100%FREE OVIRT_DOMAIN > > if I only have to reinitialize I start from here > mkfs -t xfs -f /dev/mapper/OVIRT_DOMAIN-ISO_DOMAIN > mkfs -t xfs -f /dev/mapper/OVIRT_DOMAIN-NFS_DOMAIN > mkfs -t xfs -f /dev/mapper/OVIRT_DOMAIN-SHE_DOMAIN > > mkdir /ISO_DOMAIN /NFS_DOMAIN /SHE_DOMAIN > > /etc/fstab > /dev/mapper/OVIRT_DOMAIN-ISO_DOMAIN /ISO_DOMAIN xfs defaults0 0 > /dev/mapper/OVIRT_DOMAIN-NFS_DOMAIN /NFS_DOMAIN xfs defaults0 0 > /dev/mapper/OVIRT_DOMAIN-SHE_DOMAIN /SHE_DOMAIN xfs defaults0 0 > > mount /ISO_DOMAIN/--> this for ISO images > mount /NFS_DOMAIN/ ---> this for data storage domain where your VMs will > live (NFS based) > mount /SHE_DOMAIN/ --> this is for the HE VM > > chown 36:36 /ISO_DOMAIN > chown 36:36 /NFS_DOMAIN > chown 36:36 /SHE_DOMAIN > > chmod 0755 /ISO_DOMAIN > chmod 0755 /NFS_DOMAIN > chmod 0755 /SHE_DOMAIN > > /etc/exports > /ISO_DOMAIN *(rw,anonuid=36,anongid=36,all_squash) > /NFS_DOMAIN *(rw,anonuid=36,anongid=36,all_squash) > /SHE_DOMAIN *(rw,anonuid=36,anongid=36,all_squash) > > systemctl enable rpcbind > systemctl start rpcbind > > systemctl enable nfs-server > systemctl start nfs-server > > hosted-engine --deploy > > During setup I choose: > > Engine FQDN: shengine.localdomain.local > > Firewall manager : iptables > > Storage connection : > ovc71.localdomain.local:/SHE_DOMAIN > > OVF archive (for disk boot): > /usr/share/ovirt-engine-appliance/ovirt-engine-appliance-20151015.0-1.el7.centos.ova > > Also, I used the appliance provided by ovirt-engine-appliance package > > After install you have to make a dependency so that VDSM Broker starts after > NFS Server > > In /usr/lib/systemd/system/ovirt-ha-broker.service > > Added in section [Unit] the line: > > After=nfs-server.service > > Also in file vdsmd.service changed from: > After=multipathd.service libvirtd.service iscsid.service rpcbind.service \ > supervdsmd.service sanlock.service vdsm-network.service > > to: > After=multipathd.service libvirtd.service iscsid.service rpcbind.service \ > supervdsmd.service sanlock.service vdsm-network.service \ > nfs-server.service > > NOTE: the files will be overwritten by future updates, so you have to keep > in mind... > > On ovc72 in /etc/multipath.conf aright after line > # VDSM REVISION 1.3 > > added > # RHEV PRIVATE > > blacklist { > wwid 0QEMU_QEMU_HARDDISK_drive-scsi0-0-0-1 > wwid 0QEMU_QEMU_HARDDISK_drive-scsi0-0-0-0 > } > > To exclude both 2 internal drives... probably oVirt keeps in mind only the > first one? No idea > Otherwise many messages like: > Jan 25 11:02:00 ovc72 kernel: device-mapper: table: 253:6: multipath: error > getting device > Jan 25 11:02:00 ovc72 kernel: device-mapper: ioctl: error adding target to > table > > So far I didn't find any problems. Only a little trick when you have to make > ful lmaintenance where you have to power off the (only) hypervisor, where > you have to make the right order steps. I guess you can probably script that too... Thanks for sharing. As wrote above, no personal experience with loopback nfs. For the multipath question, if interested, perhaps ask
Re: [ovirt-users] Educational use case question
On Thu, Apr 14, 2016 at 8:15 AM, Yedidyah Bar David wrote: > On Thu, Apr 14, 2016 at 5:18 AM, Michael Hall wrote: > > > 3. NFS > loop-back mounting nfs is considered risky, due to potential locking > issues. Therefore, if you want to use NFS, you are better off doing > something like this: > > Hello, can you give more details about these potential locking issues? So that I can reproduce I have 2 little environments where I'm using this kind of setup. In one of them the hypervisor is a physical server, in the other one the hypervisor is itself a libvirt VM inside a Fedora 23 based laptop. oVirt version is 3.6.4 on both. The test VM has 2 disks sda and sdb; all ovirt related stuff on sdb My raw steps for the lab have been, after setting up CentOS 7.2 OS, disabling ipv6 and NetworkManager, putting SELinux to permissive and enabling ovirt repo: NOTE: I also stop and disable firewalld My host is ovc72.localdomain.local and name of my future engine shengine.localdomain.local yum -y update yum install ovirt-hosted-engine-setup ovirt-engine-appliance yum install rpcbind nfs-utils nfs-server (some of them probably already pulled in as dependencies from previous command) When I start from scratch the system pvcreate /dev/sdb vgcreate OVIRT_DOMAIN /dev/sdb lvcreate -n ISO_DOMAIN -L 5G OVIRT_DOMAIN lvcreate -n SHE_DOMAIN -L 25G OVIRT_DOMAIN lvcreate -n NFS_DOMAIN -l +100%FREE OVIRT_DOMAIN if I only have to reinitialize I start from here mkfs -t xfs -f /dev/mapper/OVIRT_DOMAIN-ISO_DOMAIN mkfs -t xfs -f /dev/mapper/OVIRT_DOMAIN-NFS_DOMAIN mkfs -t xfs -f /dev/mapper/OVIRT_DOMAIN-SHE_DOMAIN mkdir /ISO_DOMAIN /NFS_DOMAIN /SHE_DOMAIN /etc/fstab /dev/mapper/OVIRT_DOMAIN-ISO_DOMAIN /ISO_DOMAIN xfs defaults0 0 /dev/mapper/OVIRT_DOMAIN-NFS_DOMAIN /NFS_DOMAIN xfs defaults0 0 /dev/mapper/OVIRT_DOMAIN-SHE_DOMAIN /SHE_DOMAIN xfs defaults0 0 mount /ISO_DOMAIN/--> this for ISO images mount /NFS_DOMAIN/ ---> this for data storage domain where your VMs will live (NFS based) mount /SHE_DOMAIN/ --> this is for the HE VM chown 36:36 /ISO_DOMAIN chown 36:36 /NFS_DOMAIN chown 36:36 /SHE_DOMAIN chmod 0755 /ISO_DOMAIN chmod 0755 /NFS_DOMAIN chmod 0755 /SHE_DOMAIN /etc/exports /ISO_DOMAIN *(rw,anonuid=36,anongid=36,all_squash) /NFS_DOMAIN *(rw,anonuid=36,anongid=36,all_squash) /SHE_DOMAIN *(rw,anonuid=36,anongid=36,all_squash) systemctl enable rpcbind systemctl start rpcbind systemctl enable nfs-server systemctl start nfs-server hosted-engine --deploy During setup I choose: Engine FQDN: shengine.localdomain.local Firewall manager : iptables Storage connection : ovc71.localdomain.local:/SHE_DOMAIN OVF archive (for disk boot): /usr/share/ovirt-engine-appliance/ovirt-engine-appliance-20151015.0-1.el7.centos.ova Also, I used the appliance provided by ovirt-engine-appliance package After install you have to make a dependency so that VDSM Broker starts after NFS Server In /usr/lib/systemd/system/ovirt-ha-broker.service Added in section [Unit] the line: After=nfs-server.service Also in file vdsmd.service changed from: After=multipathd.service libvirtd.service iscsid.service rpcbind.service \ supervdsmd.service sanlock.service vdsm-network.service to: After=multipathd.service libvirtd.service iscsid.service rpcbind.service \ supervdsmd.service sanlock.service vdsm-network.service \ nfs-server.service NOTE: the files will be overwritten by future updates, so you have to keep in mind... On ovc72 in /etc/multipath.conf aright after line # VDSM REVISION 1.3 added # RHEV PRIVATE blacklist { wwid 0QEMU_QEMU_HARDDISK_drive-scsi0-0-0-1 wwid 0QEMU_QEMU_HARDDISK_drive-scsi0-0-0-0 } To exclude both 2 internal drives... probably oVirt keeps in mind only the first one? Otherwise many messages like: Jan 25 11:02:00 ovc72 kernel: device-mapper: table: 253:6: multipath: error getting device Jan 25 11:02:00 ovc72 kernel: device-mapper: ioctl: error adding target to table So far I didn't find any problems. Only a little trick when you have to make ful lmaintenance where you have to power off the (only) hypervisor, where you have to make the right order steps. Gianluca ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Educational use case question
Hi, > But the project doesn't look ready to go and I can't find a download. I think that is one of the unfortunate effects of how the website was converted. Check the At a glance section, it says the status is Released. We have had it released since oVirt 3.3 with significant improvements in 3.4 and 3.6. It is used in production world wide now. That said.. we have a deployment related bug in 3.6, but all should be perfectly fine if you have just a single host. Best regards -- Martin Sivak SLA / oVirt On Thu, Apr 14, 2016 at 4:18 AM, Michael Hall wrote: > Thanks for the response. > > I did see that page and certainly agree with the point under "Benefit to > oVirt" heading: > > "This operational mode will attract users already familiar with it from > other virt platforms." > > I'm happy building headless servers using CLI over SSH, but my colleague and > students aren't and need a "nice" point and click web interface which will > display a usable VM desktop etc. My colleague is most familiar with VMware. > > But the project doesn't look ready to go and I can't find a download. > Also, an implementation that isn't stable and fully functional will probably > do more damage than good as far as open source's rep in our lab goes. > > I know this isn't a use case that oVirt or RedHat are really interested in, > but I feel it is important to expose students to real world production > software and systems as much as possible ... all we had to work with last > year was VirtualBox running on Windows 7! > > Mike > > On Thu, Apr 14, 2016 at 11:37 AM, Yair Zaslavsky > wrote: >> >> As far as I remember, oVirt does come with an all in one configuration , >> but looks like it was deprecated at 3.6, So can you try out the self hosted >> engine? >> >> >> https://www.ovirt.org/develop/release-management/features/engine/self-hosted-engine/ >> >> >> >> >> From: "Michael Hall" >> To: users@ovirt.org >> Sent: Thursday, 14 April, 2016 11:10:03 AM >> Subject: [ovirt-users] Educational use case question >> >> >> Hi >> >> I am teaching IT subjects in TAFE (a kind of post-secondary technical >> college) in Australia. >> >> We are currently looking for a virtualisation platform that will allow >> students to install and manage VMs via web interface. >> >> VMware is being proposed but I am trying to get KVM and the RedHat >> ecosystem in the lab as much as possible. >> >> I have reasonable experience with running virt manager on CentOS 7, but >> oVirt is new. I have it installed and running OK but am not sure how to >> proceed with configuration. >> >> I basically want to run a single physical server which will be the KVM >> host, the ISO and data store, and the home of oVirt engine ... in other >> words a complete oVirt-managed KVM virtualisation platform running on one >> physical machine (32GB RAM). It will only ever need to run a handful of VMs >> with little or no real data or load. Is this possible/feasible? >> >> If possible/feasible, where should oVirt engine go ... on the host itself, >> or into a VM guest? >> >> The web interface is what is making oVirt an attractive option at this >> stage, as students will be working from Windows clients on a corporate >> network. Do VM GUI display well in the browser? >> >> Thanks for any advice >> >> Mike Hall >> >> ___ >> Users mailing list >> Users@ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> > > > ___ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Educational use case question
- Original Message - From: "Alex Crow" To: users@ovirt.org Sent: Thursday, 14 April, 2016 3:15:44 PM Subject: Re: [ovirt-users] Educational use case question This certainly works. Console can be reached via a browser plugin or Virt-Viewer (available for Windows). Self-hosted engine is the way to go, and is production-ready, especially if you want to add more nodes later. On 14/04/16 03:33, Michael Hall wrote: > Yes but what about the student sitting on the Windows machine in the > lab who wants to install and interact with her VM via it's GUI ... > like is possible in Virtual Machine Manager on RHEL/CentOS 7 ... > except she'd be doing it remotely via an in-browser console ... like > Digital Ocean do for example. I dont think digital ocean is the correct analogy. As a digital ocean user, I have console in which I can create vms, right? But who installed the virtualization software for that? If you're thinking of a digital ocean, the analogy should be a provider that exposes ovirt web admin/user portal as management console to its customers. > -- This message is intended only for the addressee and may contain confidential information. Unless you are that person, you may not disclose its contents or use it in any way and are requested to delete the message along with any attachments and notify us immediately. This email is not intended to, nor should it be taken to, constitute advice. The information provided is correct to our knowledge & belief and must not be used as a substitute for obtaining tax, regulatory, investment, legal or any other appropriate advice. "Transact" is operated by Integrated Financial Arrangements Ltd. 29 Clement's Lane, London EC4N 7AE. Tel: (020) 7608 4900 Fax: (020) 7608 5300. (Registered office: as above; Registered in England and Wales under number: 3727592). Authorised and regulated by the Financial Conduct Authority (entered on the Financial Services Register; no. 190856). ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Educational use case question
On Thu, Apr 14, 2016 at 5:18 AM, Michael Hall wrote: > Thanks for the response. > > I did see that page and certainly agree with the point under "Benefit to > oVirt" heading: > > "This operational mode will attract users already familiar with it from > other virt platforms." > > I'm happy building headless servers using CLI over SSH, but my colleague and > students aren't and need a "nice" point and click web interface which will > display a usable VM desktop etc. My colleague is most familiar with VMware. > > But the project doesn't look ready to go and I can't find a download. The page mentioned is the "feature page" written during development. This is in production for 2+ years now, and the page you should follow is: http://www.ovirt.org/documentation/how-to/hosted-engine/ Also keep in mind: 1. There are some requirements not included in ovirt that you'll have to supply yourself, including: - shared storage - usable name resolution - usually meaning dhcp+dns, with dns pre-populated with back (and forward) records for the addresses in the dhcp dynamic range, so that your guest OSes get these as hostnames (and not end up all having hostname 'localhost', which is probably confusing for users). 2. The expected use-case of ovirt is a larger system, consisting of more than one physical server, and dedicated storage. If you still want everything on one host, you basically have two options: 3. NFS loop-back mounting nfs is considered risky, due to potential locking issues. Therefore, if you want to use NFS, you are better off doing something like this: 3.1. Have the physical machine managed by kvm (virt-manager, virsh or whatever) 3.2. Have a VM serving as an NFS server 3.3. Have another VM (or more than one) serving as a "host" using nested-kvm 3.4. Either have the engine on another VM on the physical machine, or use hosted-engine on the virtual host(s). 4. iSCSI iscsi does not suffer the same locking issues when loop-back mounting, so in principle you can run hosted-engine directly on the physical host with part of the disk shared using iSCSI and loop-back mounted. You can still use the setup described above in "NFS", with the main benefit being (I think) easier migration to more hardware if/when needed. With any of the above, once you finish the setup, everything else should be at least usable using the web interface. Re console access - there is a "novnc" spice client that is pure HTML5 and runs in your browser. I don't think it's used much, but should work. There is also a websocket-proxy component allowing access from places that can access the proxy but can't access the hosts. But most people probably use native clients, usually remote-viewer or the browser plugin. Best, > Also, an implementation that isn't stable and fully functional will probably > do more damage than good as far as open source's rep in our lab goes. > > I know this isn't a use case that oVirt or RedHat are really interested in, > but I feel it is important to expose students to real world production > software and systems as much as possible ... all we had to work with last > year was VirtualBox running on Windows 7! > > Mike > > On Thu, Apr 14, 2016 at 11:37 AM, Yair Zaslavsky > wrote: >> >> As far as I remember, oVirt does come with an all in one configuration , >> but looks like it was deprecated at 3.6, So can you try out the self hosted >> engine? >> >> >> https://www.ovirt.org/develop/release-management/features/engine/self-hosted-engine/ >> >> >> >> >> From: "Michael Hall" >> To: users@ovirt.org >> Sent: Thursday, 14 April, 2016 11:10:03 AM >> Subject: [ovirt-users] Educational use case question >> >> >> Hi >> >> I am teaching IT subjects in TAFE (a kind of post-secondary technical >> college) in Australia. >> >> We are currently looking for a virtualisation platform that will allow >> students to install and manage VMs via web interface. >> >> VMware is being proposed but I am trying to get KVM and the RedHat >> ecosystem in the lab as much as possible. >> >> I have reasonable experience with running virt manager on CentOS 7, but >> oVirt is new. I have it installed and running OK but am not sure how to >> proceed with configuration. >> >> I basically want to run a single physical server which will be the KVM >> host, the ISO and data store, and the home of oVirt engine ... in other >> words a complete oVirt-managed KVM virtualisation platform running on one >> physical machine (32GB RAM). It will only ever need to r
Re: [ovirt-users] Educational use case question
This certainly works. Console can be reached via a browser plugin or Virt-Viewer (available for Windows). Self-hosted engine is the way to go, and is production-ready, especially if you want to add more nodes later. On 14/04/16 03:33, Michael Hall wrote: > Yes but what about the student sitting on the Windows machine in the > lab who wants to install and interact with her VM via it's GUI ... > like is possible in Virtual Machine Manager on RHEL/CentOS 7 ... > except she'd be doing it remotely via an in-browser console ... like > Digital Ocean do for example. > -- This message is intended only for the addressee and may contain confidential information. Unless you are that person, you may not disclose its contents or use it in any way and are requested to delete the message along with any attachments and notify us immediately. This email is not intended to, nor should it be taken to, constitute advice. The information provided is correct to our knowledge & belief and must not be used as a substitute for obtaining tax, regulatory, investment, legal or any other appropriate advice. "Transact" is operated by Integrated Financial Arrangements Ltd. 29 Clement's Lane, London EC4N 7AE. Tel: (020) 7608 4900 Fax: (020) 7608 5300. (Registered office: as above; Registered in England and Wales under number: 3727592). Authorised and regulated by the Financial Conduct Authority (entered on the Financial Services Register; no. 190856). ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Educational use case question
Yes but what about the student sitting on the Windows machine in the lab who wants to install and interact with her VM via it's GUI ... like is possible in Virtual Machine Manager on RHEL/CentOS 7 ... except she'd be doing it remotely via an in-browser console ... like Digital Ocean do for example. On Thu, Apr 14, 2016 at 12:24 PM, Yair Zaslavsky wrote: > Be advised that after installation is done, you can manage VMs using the > ovirt webadmin. > > > -- > *From: *"Michael Hall" > *To: *users@ovirt.org > *Sent: *Thursday, 14 April, 2016 12:19:28 PM > *Subject: *Re: [ovirt-users] Educational use case question > > > Thanks Julian, I'm in Mildura in VIC. > > I was hoping for a "pure" web-based client console solution, not something > like the VMware desktop client. > > > Anyway, I'm not going to get too hung up on this. Even if we go VMware > because it "just works" and everyone's happy with it, we'll still do plenty > of CentOS/Fedora. > > There is also a case to be made that our students are much more likely to > encounter VMware in a corporate environment that KVM. And Windows. And > iPads. Yawn. > > Thanks > > On Thu, Apr 14, 2016 at 11:22 AM, Julian De Marchi < > jul...@jdcomputers.com.au> wrote: > >> Hey Michael, >> >> > I am teaching IT subjects in TAFE (a kind of post-secondary technical >> > college) in Australia. >> >> Great news for this tech to be in tafe. I remember my time at Logan tafe >> got me into linux. >> >> >> We are currently looking for a virtualisation platform that will allow >>> students to install and manage VMs via web interface. >>> >>> VMware is being proposed but I am trying to get KVM and the RedHat >>> ecosystem in the lab as much as possible. >>> >>> I have reasonable experience with running virt manager on CentOS 7, but >>> oVirt is new. I have it installed and running OK but am not sure how to >>> proceed with configuration. >>> >>> I basically want to run a single physical server which will be the KVM >>> host, the ISO and data store, and the home of oVirt engine ... in other >>> words a complete oVirt-managed KVM virtualisation platform running on one >>> physical machine (32GB RAM). It will only ever need to run a handful of >>> VMs >>> with little or no real data or load. Is this possible/feasible? >>> >>> If possible/feasible, where should oVirt engine go ... on the host >>> itself, >>> or into a VM guest? >>> >> >> If it was me, I would do the engine install on the metal host itself. >> Will be a lot easier for you, as long as you _know_ you will not be adding >> more metal nodes to the oVirt setup. >> >> I would also be looking into the "VM Pool" feature for your student. This >> will give you a pool of VMs which after use can be reset to a default >> configuration. >> >> The web interface is what is making oVirt an attractive option at this >>> stage, as students will be working from Windows clients on a corporate >>> network. Do VM GUI display well in the browser? >>> >> >> I have no experience using oVirt from Windows, but if there is a splice >> client available I see no reason why it shouldn't work. >> >> If you're local to QLD, I am more then happy to help in person. >> >> --julian >> >> ___ >> Users mailing list >> Users@ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> > > > ___ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > > > ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Educational use case question
Be advised that after installation is done, you can manage VMs using the ovirt webadmin. - Original Message - From: "Michael Hall" To: users@ovirt.org Sent: Thursday, 14 April, 2016 12:19:28 PM Subject: Re: [ovirt-users] Educational use case question Thanks Julian, I'm in Mildura in VIC. I was hoping for a "pure" web-based client console solution, not something like the VMware desktop client. Anyway, I'm not going to get too hung up on this. Even if we go VMware because it "just works" and everyone's happy with it, we'll still do plenty of CentOS/Fedora. There is also a case to be made that our students are much more likely to encounter VMware in a corporate environment that KVM. And Windows. And iPads. Yawn. Thanks On Thu, Apr 14, 2016 at 11:22 AM, Julian De Marchi < jul...@jdcomputers.com.au > wrote: Hey Michael, > I am teaching IT subjects in TAFE (a kind of post-secondary technical > college) in Australia. Great news for this tech to be in tafe. I remember my time at Logan tafe got me into linux. We are currently looking for a virtualisation platform that will allow students to install and manage VMs via web interface. VMware is being proposed but I am trying to get KVM and the RedHat ecosystem in the lab as much as possible. I have reasonable experience with running virt manager on CentOS 7, but oVirt is new. I have it installed and running OK but am not sure how to proceed with configuration. I basically want to run a single physical server which will be the KVM host, the ISO and data store, and the home of oVirt engine ... in other words a complete oVirt-managed KVM virtualisation platform running on one physical machine (32GB RAM). It will only ever need to run a handful of VMs with little or no real data or load. Is this possible/feasible? If possible/feasible, where should oVirt engine go ... on the host itself, or into a VM guest? If it was me, I would do the engine install on the metal host itself. Will be a lot easier for you, as long as you _know_ you will not be adding more metal nodes to the oVirt setup. I would also be looking into the "VM Pool" feature for your student. This will give you a pool of VMs which after use can be reset to a default configuration. The web interface is what is making oVirt an attractive option at this stage, as students will be working from Windows clients on a corporate network. Do VM GUI display well in the browser? I have no experience using oVirt from Windows, but if there is a splice client available I see no reason why it shouldn't work. If you're local to QLD, I am more then happy to help in person. --julian ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Educational use case question
Thanks Julian, I'm in Mildura in VIC. I was hoping for a "pure" web-based client console solution, not something like the VMware desktop client. Anyway, I'm not going to get too hung up on this. Even if we go VMware because it "just works" and everyone's happy with it, we'll still do plenty of CentOS/Fedora. There is also a case to be made that our students are much more likely to encounter VMware in a corporate environment that KVM. And Windows. And iPads. Yawn. Thanks On Thu, Apr 14, 2016 at 11:22 AM, Julian De Marchi < jul...@jdcomputers.com.au> wrote: > Hey Michael, > > > I am teaching IT subjects in TAFE (a kind of post-secondary technical > > college) in Australia. > > Great news for this tech to be in tafe. I remember my time at Logan tafe > got me into linux. > > > We are currently looking for a virtualisation platform that will allow >> students to install and manage VMs via web interface. >> >> VMware is being proposed but I am trying to get KVM and the RedHat >> ecosystem in the lab as much as possible. >> >> I have reasonable experience with running virt manager on CentOS 7, but >> oVirt is new. I have it installed and running OK but am not sure how to >> proceed with configuration. >> >> I basically want to run a single physical server which will be the KVM >> host, the ISO and data store, and the home of oVirt engine ... in other >> words a complete oVirt-managed KVM virtualisation platform running on one >> physical machine (32GB RAM). It will only ever need to run a handful of >> VMs >> with little or no real data or load. Is this possible/feasible? >> >> If possible/feasible, where should oVirt engine go ... on the host itself, >> or into a VM guest? >> > > If it was me, I would do the engine install on the metal host itself. Will > be a lot easier for you, as long as you _know_ you will not be adding more > metal nodes to the oVirt setup. > > I would also be looking into the "VM Pool" feature for your student. This > will give you a pool of VMs which after use can be reset to a default > configuration. > > The web interface is what is making oVirt an attractive option at this >> stage, as students will be working from Windows clients on a corporate >> network. Do VM GUI display well in the browser? >> > > I have no experience using oVirt from Windows, but if there is a splice > client available I see no reason why it shouldn't work. > > If you're local to QLD, I am more then happy to help in person. > > --julian > > ___ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Educational use case question
Thanks for the response. I did see that page and certainly agree with the point under "Benefit to oVirt" heading: "This operational mode will attract users already familiar with it from other virt platforms." I'm happy building headless servers using CLI over SSH, but my colleague and students aren't and need a "nice" point and click web interface which will display a usable VM desktop etc. My colleague is most familiar with VMware. But the project doesn't look ready to go and I can't find a download. Also, an implementation that isn't stable and fully functional will probably do more damage than good as far as open source's rep in our lab goes. I know this isn't a use case that oVirt or RedHat are really interested in, but I feel it is important to expose students to real world production software and systems as much as possible ... all we had to work with last year was VirtualBox running on Windows 7! Mike On Thu, Apr 14, 2016 at 11:37 AM, Yair Zaslavsky wrote: > As far as I remember, oVirt does come with an all in one configuration , > but looks like it was deprecated at 3.6, So can you try out the self hosted > engine? > > > https://www.ovirt.org/develop/release-management/features/engine/self-hosted-engine/ > > > > -- > *From: *"Michael Hall" > *To: *users@ovirt.org > *Sent: *Thursday, 14 April, 2016 11:10:03 AM > *Subject: *[ovirt-users] Educational use case question > > > Hi > > I am teaching IT subjects in TAFE (a kind of post-secondary technical > college) in Australia. > > We are currently looking for a virtualisation platform that will allow > students to install and manage VMs via web interface. > > VMware is being proposed but I am trying to get KVM and the RedHat > ecosystem in the lab as much as possible. > > I have reasonable experience with running virt manager on CentOS 7, but > oVirt is new. I have it installed and running OK but am not sure how to > proceed with configuration. > > I basically want to run a single physical server which will be the KVM > host, the ISO and data store, and the home of oVirt engine ... in other > words a complete oVirt-managed KVM virtualisation platform running on one > physical machine (32GB RAM). It will only ever need to run a handful of VMs > with little or no real data or load. Is this possible/feasible? > > If possible/feasible, where should oVirt engine go ... on the host itself, > or into a VM guest? > > The web interface is what is making oVirt an attractive option at this > stage, as students will be working from Windows clients on a corporate > network. Do VM GUI display well in the browser? > > Thanks for any advice > > Mike Hall > > ___ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > > ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Educational use case question
As far as I remember, oVirt does come with an all in one configuration , but looks like it was deprecated at 3.6, So can you try out the self hosted engine? https://www.ovirt.org/develop/release-management/features/engine/self-hosted-engine/ - Original Message - From: "Michael Hall" To: users@ovirt.org Sent: Thursday, 14 April, 2016 11:10:03 AM Subject: [ovirt-users] Educational use case question Hi I am teaching IT subjects in TAFE (a kind of post-secondary technical college) in Australia. We are currently looking for a virtualisation platform that will allow students to install and manage VMs via web interface. VMware is being proposed but I am trying to get KVM and the RedHat ecosystem in the lab as much as possible. I have reasonable experience with running virt manager on CentOS 7, but oVirt is new. I have it installed and running OK but am not sure how to proceed with configuration. I basically want to run a single physical server which will be the KVM host, the ISO and data store, and the home of oVirt engine ... in other words a complete oVirt-managed KVM virtualisation platform running on one physical machine (32GB RAM). It will only ever need to run a handful of VMs with little or no real data or load. Is this possible/feasible? If possible/feasible, where should oVirt engine go ... on the host itself, or into a VM guest? The web interface is what is making oVirt an attractive option at this stage, as students will be working from Windows clients on a corporate network. Do VM GUI display well in the browser? Thanks for any advice Mike Hall ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Educational use case question
Hey Michael, > I am teaching IT subjects in TAFE (a kind of post-secondary technical > college) in Australia. Great news for this tech to be in tafe. I remember my time at Logan tafe got me into linux. We are currently looking for a virtualisation platform that will allow students to install and manage VMs via web interface. VMware is being proposed but I am trying to get KVM and the RedHat ecosystem in the lab as much as possible. I have reasonable experience with running virt manager on CentOS 7, but oVirt is new. I have it installed and running OK but am not sure how to proceed with configuration. I basically want to run a single physical server which will be the KVM host, the ISO and data store, and the home of oVirt engine ... in other words a complete oVirt-managed KVM virtualisation platform running on one physical machine (32GB RAM). It will only ever need to run a handful of VMs with little or no real data or load. Is this possible/feasible? If possible/feasible, where should oVirt engine go ... on the host itself, or into a VM guest? If it was me, I would do the engine install on the metal host itself. Will be a lot easier for you, as long as you _know_ you will not be adding more metal nodes to the oVirt setup. I would also be looking into the "VM Pool" feature for your student. This will give you a pool of VMs which after use can be reset to a default configuration. The web interface is what is making oVirt an attractive option at this stage, as students will be working from Windows clients on a corporate network. Do VM GUI display well in the browser? I have no experience using oVirt from Windows, but if there is a splice client available I see no reason why it shouldn't work. If you're local to QLD, I am more then happy to help in person. --julian ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] Educational use case question
Hi I am teaching IT subjects in TAFE (a kind of post-secondary technical college) in Australia. We are currently looking for a virtualisation platform that will allow students to install and manage VMs via web interface. VMware is being proposed but I am trying to get KVM and the RedHat ecosystem in the lab as much as possible. I have reasonable experience with running virt manager on CentOS 7, but oVirt is new. I have it installed and running OK but am not sure how to proceed with configuration. I basically want to run a single physical server which will be the KVM host, the ISO and data store, and the home of oVirt engine ... in other words a complete oVirt-managed KVM virtualisation platform running on one physical machine (32GB RAM). It will only ever need to run a handful of VMs with little or no real data or load. Is this possible/feasible? If possible/feasible, where should oVirt engine go ... on the host itself, or into a VM guest? The web interface is what is making oVirt an attractive option at this stage, as students will be working from Windows clients on a corporate network. Do VM GUI display well in the browser? Thanks for any advice Mike Hall ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users