github.com/coreos/mantle@v0.13.0/platform/machine/unprivqemu/flight.go (about)

     1  // Copyright 2019 Red Hat
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package unprivqemu
    16  
    17  import (
    18  	"os"
    19  
    20  	"github.com/coreos/pkg/capnslog"
    21  
    22  	"github.com/coreos/mantle/platform"
    23  	"github.com/coreos/mantle/platform/machine/qemu"
    24  )
    25  
    26  const (
    27  	Platform platform.Name = "qemu"
    28  )
    29  
    30  type flight struct {
    31  	*platform.BaseFlight
    32  	opts *qemu.Options
    33  
    34  	diskImagePath string
    35  	diskImageFile *os.File
    36  }
    37  
    38  var (
    39  	plog = capnslog.NewPackageLogger("github.com/coreos/mantle", "platform/machine/qemu")
    40  )
    41  
    42  func NewFlight(opts *qemu.Options) (platform.Flight, error) {
    43  	bf, err := platform.NewBaseFlight(opts.Options, Platform, "")
    44  	if err != nil {
    45  		return nil, err
    46  	}
    47  
    48  	qf := &flight{
    49  		BaseFlight:    bf,
    50  		opts:          opts,
    51  		diskImagePath: opts.DiskImage,
    52  	}
    53  
    54  	return qf, nil
    55  }
    56  
    57  // NewCluster creates a Cluster instance, suitable for running virtual
    58  // machines in QEMU.
    59  func (qf *flight) NewCluster(rconf *platform.RuntimeConfig) (platform.Cluster, error) {
    60  	bc, err := platform.NewBaseCluster(qf.BaseFlight, rconf)
    61  	if err != nil {
    62  		return nil, err
    63  	}
    64  
    65  	qc := &Cluster{
    66  		BaseCluster: bc,
    67  		flight:      qf,
    68  	}
    69  
    70  	qf.AddCluster(qc)
    71  
    72  	return qc, nil
    73  }
    74  
    75  func (qf *flight) Destroy() {
    76  	if qf.diskImageFile != nil {
    77  		qf.diskImageFile.Close()
    78  	}
    79  }