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Bring KVM driver in-tree #1828
Bring KVM driver in-tree #1828
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// +build linux | ||
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/* | ||
Copyright 2016 The Kubernetes Authors All rights reserved. | ||
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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 | ||
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http://www.apache.org/licenses/LICENSE-2.0 | ||
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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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/* | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. @dlorenc @aaron-prindle Where should the in-tree drivers live? I just used the location that @dlorenc had in his hyperkit PR. We have the none driver in There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. This sgtm. |
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Copyright 2016 The Kubernetes Authors All rights reserved. | ||
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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 | ||
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http://www.apache.org/licenses/LICENSE-2.0 | ||
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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? | ||
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# 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 | ||
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# 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) | ||
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# 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 | ||
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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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Could you add a build tag here to restrict to linux?
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done