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flight.go
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flight.go
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// Copyright 2019 Red Hat
//
// 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.
package unprivqemu
import (
"net"
"os"
"github.com/coreos/pkg/capnslog"
ctplatform "github.com/flatcar-linux/container-linux-config-transpiler/config/platform"
"github.com/flatcar-linux/mantle/platform"
"github.com/flatcar-linux/mantle/platform/machine/qemu"
)
const (
Platform platform.Name = "qemu"
)
type flight struct {
*platform.BaseFlight
opts *qemu.Options
diskImagePath string
diskImageFile *os.File
}
var (
plog = capnslog.NewPackageLogger("github.com/flatcar-linux/mantle", "platform/machine/qemu")
)
func NewFlight(opts *qemu.Options) (platform.Flight, error) {
bf, err := platform.NewBaseFlight(opts.Options, Platform, ctplatform.Custom)
if err != nil {
return nil, err
}
qf := &flight{
BaseFlight: bf,
opts: opts,
diskImagePath: opts.DiskImage,
}
return qf, nil
}
// NewCluster creates a Cluster instance, suitable for running virtual
// machines in QEMU.
func (qf *flight) NewCluster(rconf *platform.RuntimeConfig) (platform.Cluster, error) {
bc, err := platform.NewBaseCluster(qf.BaseFlight, rconf)
if err != nil {
return nil, err
}
l, err := net.Listen("tcp", "127.0.0.99:0")
if err != nil {
return nil, err
}
qc := &Cluster{
BaseCluster: bc,
flight: qf,
mcastPortHolder: l,
}
qf.AddCluster(qc)
return qc, nil
}
func (qf *flight) Destroy() {
if qf.diskImageFile != nil {
qf.diskImageFile.Close()
}
}