tips:zfs

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tips:zfs [2017/11/21 09:58] – [libvirt] scipiotips:zfs [2023/01/18 11:22] (current) – sscipioni
Line 36: Line 36:
 zpool create lxd /dev/sda4 zpool create lxd /dev/sda4
 </code> </code>
 +
 +===== docker =====
 +
 +<code>
 +systemctl stop docker
 +rm -fR /var/lib/docker
 +zfs create -o mountpoint=/var/lib/docker rpool/docker-root
 +zfs create -o mountpoint=/var/lib/docker/volumes rpool/docker-volumes
 +systemctl start docker
 +</code>
 +
 +/etc/docker/daemon.json
 +<code>
 +{
 +  "default-address-pools":
 +  [
 +    {"base":"172.16.0.0/21","size":26}
 +  ],
 +  "storage-driver": "zfs",
 +  "features": {
 +    "buildkit" : true
 +  }
 +}
 +
 +</code>
 +
 +
 ===== libvirt ===== ===== libvirt =====
  
Line 41: Line 68:
 add ZFS pool to libvirt add ZFS pool to libvirt
 <code> <code>
 +# in bionic
 +apt install libvirt-daemon-driver-storage-zfs && systemctl restart libvirtd
 +
 # create zfs filesystem # create zfs filesystem
-#zfs create rpool/libvirt+zfs create rpool/libvirt
  
-virsh pool-define-as --name zfspool --source-name rpool --type zfs+virsh pool-define-as --name zfspool --source-name rpool/libvirt --type zfs
 virsh pool-start zfspool virsh pool-start zfspool
 virsh pool-autostart zfspool virsh pool-autostart zfspool
Line 57: Line 87:
 <code> <code>
 virsh vol-delete --pool zfspool maas2 virsh vol-delete --pool zfspool maas2
 +</code>
 +
 +add volume to instance
 +
 +create file mydevice.xml
 +<code>
 +<disk type='block' device='disk'>
 +      <driver name='qemu' type='raw' cache='none'/>
 +      <source dev='/dev/zvol/rpool/libvirt/juju-controller'/>
 +      <target dev='vda' bus='virtio'/>
 +</disk>
 +</code>
 +
 +add volume
 +<code>
 +virsh attach-device --config juju-controller mydevice.xml
 </code> </code>
  
Line 168: Line 214:
  
  
-===> CRYPTOLOCKER grows SNAP+------> CRYPTOLOCKER grows SNAP
  
 check crypto locker every day check crypto locker every day
Line 181: Line 227:
 fi fi
 </code> </code>
 +
 +===== swap =====
 +
 +<code>
 +zfs create -V 4G -b $(getconf PAGESIZE) -o compression=zle \
 +      -o logbias=throughput -o sync=always \
 +      -o primarycache=metadata -o secondarycache=none \
 +      -o com.sun:auto-snapshot=false rpool/swap
 +
 +mkswap -f /dev/zvol/rpool/swap
 +</code>
 +
 +<code>
 +echo /dev/zvol/rpool/swap none swap defaults 0 0 >> /etc/fstab
 +swapon -av
 +</code>
 +
 +
 +
 +
 +
  • tips/zfs.1511254706.txt.gz
  • Last modified: 2017/11/21 09:58
  • by scipio