github.com/Equinix-Metal/virtlet@v1.5.2-0.20210807010419-342346535dc5/tests/integration/utils.go (about) 1 /* 2 Copyright 2016 Mirantis 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package integration 18 19 import ( 20 "fmt" 21 "log" 22 "os" 23 "time" 24 25 libvirt "github.com/libvirt/libvirt-go" 26 libvirtxml "github.com/libvirt/libvirt-go-xml" 27 28 "github.com/Equinix-Metal/virtlet/pkg/libvirttools" 29 virtletutils "github.com/Equinix-Metal/virtlet/pkg/utils" 30 ) 31 32 const ( 33 maxTime = 60 34 libvirtURI = "qemu:///system" 35 ) 36 37 func waitForSocket(filepath string) error { 38 for i := 0; i < maxTime; i++ { 39 time.Sleep(1 * time.Second) 40 if _, err := os.Stat(filepath); err == nil { 41 return nil 42 } 43 } 44 45 return fmt.Errorf("Socket %s doesn't exist", filepath) 46 } 47 48 func getDomainUUID(podID string) string { 49 return virtletutils.NewUUID5(libvirttools.ContainerNsUUID, podID) 50 } 51 52 func defineDummyVolume(poolName, volName string) (func(), error) { 53 conn, err := libvirt.NewConnect(libvirtURI) 54 if err != nil { 55 return nil, err 56 } 57 58 pool, err := conn.LookupStoragePoolByName(poolName) 59 if err != nil { 60 return nil, fmt.Errorf("failed to lookup pool '%s': %v", poolName, err) 61 } 62 63 volume := &libvirtxml.StorageVolume{ 64 Name: volName, 65 Capacity: &libvirtxml.StorageVolumeSize{Unit: "bytes", Value: 1}, 66 } 67 68 volXML, err := volume.Marshal() 69 if err != nil { 70 log.Panicf("XML marshaling: %v", err) 71 } 72 73 vol, err := pool.StorageVolCreateXML(volXML, 0) 74 return func() { 75 if vol == nil { 76 return 77 } 78 if err := vol.Delete(0); err != nil { 79 log.Printf("WARNING: failed to clean up volume %q in pool %q: %v", volName, poolName, err) 80 } else { 81 vol = nil 82 } 83 }, err 84 } 85 86 func undefDomain(domainName string) error { 87 conn, err := libvirt.NewConnect(libvirtURI) 88 if err != nil { 89 return err 90 } 91 domain, err := conn.LookupDomainByName(domainName) 92 if err != nil { 93 return fmt.Errorf("failed to lookup domain by name %q: %v", domainName, err) 94 } 95 if err := domain.Undefine(); err != nil { 96 return fmt.Errorf("failed to lookup domain by name %q: %v", domainName, err) 97 } 98 return nil 99 } 100 101 func defineDummyDomain() error { 102 return defineDummyDomainWithName("") 103 } 104 105 func defineDummyDomainWithName(domainName string) error { 106 if domainName == "" { 107 domainName = "dummy-" + virtletutils.NewUUID() 108 } 109 110 conn, err := libvirt.NewConnect(libvirtURI) 111 if err != nil { 112 return err 113 } 114 115 domain := &libvirtxml.Domain{ 116 Name: domainName, 117 Type: "qemu", 118 OS: &libvirtxml.DomainOS{ 119 Type: &libvirtxml.DomainOSType{Type: "hvm"}, 120 }, 121 Memory: &libvirtxml.DomainMemory{Value: 8192, Unit: "KiB"}, 122 } 123 124 domainXML, err := domain.Marshal() 125 if err != nil { 126 log.Panicf("XML marshaling: %v", err) 127 } 128 129 _, err = conn.DomainDefineXML(domainXML) 130 return err 131 }