Zola init

content/posts/qemu.md

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+title = "KVM/QEMU self hosted hypervisor"
+date = "2020-07-14"
+description = "Installing home hypervisor with remote control"
+
+[taxonomies]
+tags = ["linux", "kvm", "selfhosting"]
+
+[extra]
+author = { name = "@ultradesu", social= "https://github.com/house-of-vanity" }
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+
+## Requirements
+* Ubuntu Linux server (tested on 18.04 and 20.04)
+* CPU with virtualisation enabled
+---
+
+## Installing
+
+Installing VT staff
+
+```sh
+sudo apt install qemu-kvm libvirt-clients libvirt-daemon-system bridge-utils
+```
+I'd like to assign IPs for my VMs in the same network as server.
+
+Here is `netplan` config:
+```yaml
+# /etc/netplan/00-installer-config.yaml
+network:
+  ethernets:
+    enp2s0f0:
+      dhcp4: false
+      dhcp6: false
+  bridges:
+    br0:
+      interfaces: [enp2s0f0]
+      dhcp4: true
+      dhcp6: true
+  version: 2
+```
+
+Generate and apply network config:
+```sh
+sudo netplan generate
+sudo netplan --debug apply
+
+# Check bridge
+sudo networkctl
+IDX LINK       TYPE     OPERATIONAL SETUP
+  1 lo         loopback carrier     unmanaged
+  2 enp2s0f0   ether    enslaved    configured
+  3 br0        bridge   routable    configured
+  4 virbr0     bridge   no-carrier  unmanaged
+  5 virbr0-nic ether    off         unmanaged
+
+# Check DHCP lease on new bridge
+sudo ip a 
+2: enp2s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master br0 state UP group default qlen 1000
+    link/ether xxx brd ff:ff:ff:ff:ff:ff
+4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
+    link/ether xxx brd ff:ff:ff:ff:ff:ff
+    inet 192.168.88.28/24 brd 192.168.88.255 scope global dynamic br0
+       valid_lft 535sec preferred_lft 535sec
+```
+---
+
+## Managing VMs
+
+Grant permissions to use virtmanager to your user on server:
+```sh
+sudo adduser $USER libvirt-qemu
+sudo adduser $USER libvirt
+```
+
+Use virt-manager GUI utility on client or virsh CLI tool for managing VMs and data pools.