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Merge pull request #1828 from r2d4/in-tree-kvm
Bring KVM driver in-tree
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,28 @@ | ||
| // +build linux | ||
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| /* | ||
| Copyright 2016 The Kubernetes Authors All rights reserved. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
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| package main | ||
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| import ( | ||
| "github.com/docker/machine/libmachine/drivers/plugin" | ||
| "k8s.io/minikube/pkg/drivers/kvm" | ||
| ) | ||
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| func main() { | ||
| plugin.RegisterDriver(kvm.NewDriver("", "")) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| /* | ||
| Copyright 2016 The Kubernetes Authors All rights reserved. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
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| package kvm | ||
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| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "text/template" | ||
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| libvirt "github.com/libvirt/libvirt-go" | ||
| "github.com/pkg/errors" | ||
| ) | ||
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| const domainTmpl = ` | ||
| <domain type='kvm'> | ||
| <name>{{.MachineName}}</name> | ||
| <memory unit='MB'>{{.Memory}}</memory> | ||
| <vcpu>{{.CPU}}</vcpu> | ||
| <features> | ||
| <acpi/> | ||
| <apic/> | ||
| <pae/> | ||
| </features> | ||
| <os> | ||
| <type>hvm</type> | ||
| <boot dev='cdrom'/> | ||
| <boot dev='hd'/> | ||
| <bootmenu enable='no'/> | ||
| </os> | ||
| <devices> | ||
| <disk type='file' device='cdrom'> | ||
| <source file='{{.ISO}}'/> | ||
| <target dev='hdc' bus='scsi'/> | ||
| <readonly/> | ||
| </disk> | ||
| <disk type='file' device='disk'> | ||
| <driver name='qemu' type='raw' cache='default' io='threads' /> | ||
| <source file='{{.DiskPath}}'/> | ||
| <target dev='hda' bus='virtio'/> | ||
| </disk> | ||
| <interface type='network'> | ||
| <source network='{{.Network}}'/> | ||
| <model type='virtio'/> | ||
| </interface> | ||
| <interface type='network'> | ||
| <source network='{{.PrivateNetwork}}'/> | ||
| <model type='virtio'/> | ||
| </interface> | ||
| <serial type='pty'> | ||
| <source path='/dev/pts/2'/> | ||
| <target port='0'/> | ||
| </serial> | ||
| <console type='pty' tty='/dev/pts/2'> | ||
| <source path='/dev/pts/2'/> | ||
| <target port='0'/> | ||
| </console> | ||
| <rng model='virtio'> | ||
| <backend model='random'>/dev/random</backend> | ||
| </rng> | ||
| </devices> | ||
| </domain> | ||
| ` | ||
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| const connectionErrorText = ` | ||
| Error connecting to libvirt socket. Have you set up libvirt correctly? | ||
| # Install libvirt and qemu-kvm on your system, e.g. | ||
| # Debian/Ubuntu | ||
| $ sudo apt install libvirt-bin qemu-kvm | ||
| # Fedora/CentOS/RHEL | ||
| $ sudo yum install libvirt-daemon-kvm qemu-kvm | ||
| # Add yourself to the libvirtd group (use libvirt group for rpm based distros) so you don't need to sudo | ||
| # Debian/Ubuntu (NOTE: For Ubuntu 17.04 change the group to libvirt) | ||
| $ sudo usermod -a -G libvirtd $(whoami) | ||
| # Fedora/CentOS/RHEL | ||
| $ sudo usermod -a -G libvirt $(whoami) | ||
| # Update your current session for the group change to take effect | ||
| # Debian/Ubuntu (NOTE: For Ubuntu 17.04 change the group to libvirt) | ||
| $ newgrp libvirtd | ||
| # Fedora/CentOS/RHEL | ||
| $ newgrp libvirt | ||
| Visit https://github.com/kubernetes/minikube/blob/master/docs/drivers.md#kvm-driver for more information. | ||
| ` | ||
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| func (d *Driver) getDomain() (*libvirt.Domain, *libvirt.Connect, error) { | ||
| conn, err := getConnection() | ||
| if err != nil { | ||
| return nil, nil, errors.Wrap(err, "getting domain") | ||
| } | ||
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| dom, err := conn.LookupDomainByName(d.MachineName) | ||
| if err != nil { | ||
| return nil, nil, errors.Wrap(err, "looking up domain") | ||
| } | ||
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| return dom, conn, nil | ||
| } | ||
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| func getConnection() (*libvirt.Connect, error) { | ||
| conn, err := libvirt.NewConnect(qemusystem) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, connectionErrorText) | ||
| } | ||
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| return conn, nil | ||
| } | ||
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| func closeDomain(dom *libvirt.Domain, conn *libvirt.Connect) error { | ||
| dom.Free() | ||
| if res, _ := conn.Close(); res != 0 { | ||
| return fmt.Errorf("Error closing connection CloseConnection() == %d, expected 0", res) | ||
| } | ||
| return nil | ||
| } | ||
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| func (d *Driver) createDomain() (*libvirt.Domain, error) { | ||
| tmpl := template.Must(template.New("domain").Parse(domainTmpl)) | ||
| var domainXml bytes.Buffer | ||
| if err := tmpl.Execute(&domainXml, d); err != nil { | ||
| return nil, errors.Wrap(err, "executing domain xml") | ||
| } | ||
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| conn, err := getConnection() | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "Error getting libvirt connection") | ||
| } | ||
| defer conn.Close() | ||
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| dom, err := conn.DomainDefineXML(domainXml.String()) | ||
| if err != nil { | ||
| return nil, errors.Wrapf(err, "Error defining domain xml: %s", domainXml.String()) | ||
| } | ||
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| return dom, nil | ||
| } |
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