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| == TODO == | = TODO = |
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| This is all that has no yet been done or documented | == Various Articles == |
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| mailserver configure apt sources in template clone a virtual machine remove the spice/vnc option from the virsh xml firewall list disks monitoring diskspace disable saving .debs af download configure apt to remove .deb files after download /var/cache/apt/archives/ network planning hardware description vmx flag, i7, ram disks firewall keyscript should try thrice |
* https://serverfault.com/questions/122042/kvm-online-disk-resize * https://serverfault.com/questions/378086/how-to-extend-a-linux-pv-partition-online-after-virtual-disk-growth * https://eioki.eu/2013/07/02/live-resize-libvirt-disk-lvm-multipath * http://www.unixarena.com/2015/12/linux-kvm-how-to-addresize-virtual-disk-on-fly.html * apt-get install libguestfs-tools to get virt-resize * https://forum.proxmox.com/threads/extend-rescan-virtio-disk-in-guest-vm.7989/ * debug io trouble: sysstat package + iosat -x 2 5 http://bencane.com/2012/08/06/troubleshooting-high-io-wait-in-linux/ do a page on debugging iostat and how to solve * http://thomasmullaly.com/2014/11/16/the-list-of-os-variants-in-kvm/ * http://lists.gluster.org/pipermail/gluster-users/2015-February/020798.html * https://www.linux.com/news/carp-your-way-high-availability * https://www.server-world.info/en/note?os=Debian_9&p=mariadb&f=1 * http://galeracluster.com/documentation-webpages/sslconfig.html |
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| Space used on vanilla Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg1-root 1,9G 791M 954M 46% / /dev/md0 243M 53M 162M 25% /boot |
== misc == |
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we will configure this system with a mail server this server will later be configured to forward its mails to another mail account apt-get install postfix create a virtual machine #!/bin/bash NAME="stretch-template" RAM="1024" LVM_SIZE="4G" LVM_GROUP="vg2" OS="debian9" MEDIA="/mnt/media/debian/stretch/debian-9.1.0-amd64-netinst.iso" if [ $# -eq 0 ] then echo "${0}: domain-name" else NAME=${1} fi LVM_NAME="kvm_${NAME}_vda" if [ ! -e /dev/${LVM_GROUP}/${LVM_NAME} ] then # create lvm partition lvcreate --size ${LVM_SIZE} --name ${LVM_NAME} ${LVM_GROUP} # create the virtual machine virt-install --name ${NAME} --memory ${RAM} --disk /dev/${LVM_GROUP}/${VM_NAME},bus=virtio,format=raw --os-variant ${OS} --network bridge=br0,model=vitio --cdrom ${MEDIA} --graphics spice,listen=192.168.1.33,password=${NAME} --noutoconsole --virt-type kvm else echo "${0}: refusing to overwrite existing domain"; fi on another system apt-get install xtightvncviewer vncviewer 192.168.1.33 apt-get install virt-viewer remote-viewer spice://kvm02:5900 setup debian on that system kvm guest disk setup vda 4G vda1 256M /boot btrfs vda2 4G lvm lvm-root 2G btrfs lvm-swap swappartition kvm guest added packages net-tools vim apt sources, with src lines commented mlocate |
* Mailserver * Firewall * Monitoring diskspace * Network planning * Keyscript should try thrice * NTP servers are getting the time from themselves, thats not optimal. * Create a page about manual DNSs updates and nsupdate * Spice and TLS write a ssection about spice and TLS, check this to set up the TLS certificates on kvm02 /etc/libvirt/qemu.conf * KVM guest types are in package osinfo-db * move gluster07 to dedicated hardware, so the arbiter works as expected. * Do some pages on optimizations, this is both network, diskio etc. BUT redundancy and stability comes first. * Do some pages on security, for now redundancy comes first |
TODO
Various Articles
https://serverfault.com/questions/122042/kvm-online-disk-resize
https://eioki.eu/2013/07/02/live-resize-libvirt-disk-lvm-multipath
http://www.unixarena.com/2015/12/linux-kvm-how-to-addresize-virtual-disk-on-fly.html
- apt-get install libguestfs-tools to get virt-resize
https://forum.proxmox.com/threads/extend-rescan-virtio-disk-in-guest-vm.7989/
debug io trouble: sysstat package + iosat -x 2 5 http://bencane.com/2012/08/06/troubleshooting-high-io-wait-in-linux/ do a page on debugging iostat and how to solve
http://thomasmullaly.com/2014/11/16/the-list-of-os-variants-in-kvm/
http://lists.gluster.org/pipermail/gluster-users/2015-February/020798.html
https://www.server-world.info/en/note?os=Debian_9&p=mariadb&f=1
http://galeracluster.com/documentation-webpages/sslconfig.html
misc
- Mailserver
- Firewall
- Monitoring diskspace
- Network planning
- Keyscript should try thrice
- NTP servers are getting the time from themselves, thats not optimal.
- Create a page about manual DNSs updates and nsupdate
- Spice and TLS write a ssection about spice and TLS, check this to set up the TLS certificates on kvm02 /etc/libvirt/qemu.conf
- KVM guest types are in package osinfo-db
- move gluster07 to dedicated hardware, so the arbiter works as expected.
- Do some pages on optimizations, this is both network, diskio etc. BUT redundancy and stability comes first.
- Do some pages on security, for now redundancy comes first