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tstest/integration/vms: use dynamically discovered bindhost (#1992)

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Instead of relying on a libvirtd bridge address that you probably won't
have on your system.

Updates #1988

Signed-off-by: Christine Dodrill <xe@tailscale.com>
This commit is contained in:
Christine Dodrill 2021-05-28 08:05:17 -04:00 committed by GitHub
parent 35749ec297
commit 1f72b6f812
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 43 additions and 5 deletions
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48
tstest/integration/vms/vms_test.go
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@ -28,6 +28,7 @@
expect "github.com/google/goexpect"
"golang.org/x/crypto/ssh"
"inet.af/netaddr"
"tailscale.com/tstest/integration/testcontrol"
)
@ -298,17 +299,17 @@ func TestVMIntegrationEndToEnd(t *testing.T) {
{"fedora-34", "https://download.fedoraproject.org/pub/fedora/linux/releases/34/Cloud/x86_64/images/Fedora-Cloud-Base-34-1.2.x86_64.qcow2", "b9b621b26725ba95442d9a56cbaa054784e0779a9522ec6eafff07c6e6f717ea", 768, "dnf"},
{"opensuse-leap-15.1", "https://download.opensuse.org/repositories/Cloud:/Images:/Leap_15.1/images/openSUSE-Leap-15.1-OpenStack.x86_64.qcow2", "3203e256dab5981ca3301408574b63bc522a69972fbe9850b65b54ff44a96e0a", 512, "zypper"},
{"opensuse-leap-15.2", "https://download.opensuse.org/repositories/Cloud:/Images:/Leap_15.2/images/openSUSE-Leap-15.2-OpenStack.x86_64.qcow2", "4df9cee9281d1f57d20f79dc65d76e255592b904760e73c0dd44ac753a54330f", 512, "zypper"},
{"opensuse-tumbleweed", "https://download.opensuse.org/tumbleweed/appliances/openSUSE-Tumbleweed-JeOS.x86_64-OpenStack-Cloud.qcow2", "f5a40c693187dddc524b0877b0aba31cdb6f2e78f12acce0bbb2975ec120dfc0", 512, "zypper"},
{"opensuse-tumbleweed", "https://download.opensuse.org/tumbleweed/appliances/openSUSE-Tumbleweed-JeOS.x86_64-OpenStack-Cloud.qcow2", "ba3ecd281045b5019f0fb11378329a644a41870b77631ea647b128cd07eb804b", 512, "zypper"},
{"ubuntu-16-04", "https://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-disk1.img", "50a21bc067c05e0c73bf5d8727ab61152340d93073b3dc32eff18b626f7d813b", 512, "apt"},
{"ubuntu-18-04", "https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img", "78f09b6086367914d23f26e38c3cd88a2aaf1a6a4500ebd46c74ad60c56c1585", 512, "apt"},
{"ubuntu-18-04", "https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img", "08396cf95c18534a2e3f88289bd92d18eee76f0e75813636b3ab9f1e603816d7", 512, "apt"},
{"ubuntu-20-04", "https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64.img", "513158b22ff0f08d0a078d8d60293bcddffdb17094a7809c76c52aba415ecc54", 512, "apt"},
{"ubuntu-20-10", "https://cloud-images.ubuntu.com/groovy/current/groovy-server-cloudimg-amd64.img", "c1332c24557389a129ff98fa169e34cb53c02555ed702a235e26b8978dd004c3", 512, "apt"},
{"ubuntu-21-04", "https://cloud-images.ubuntu.com/hirsute/current/hirsute-server-cloudimg-amd64.img", "2f8a562637340a026f712594f1257673543d74725d8e3daf88d533d7b8bf448f", 512, "apt"},
{"ubuntu-20-10", "https://cloud-images.ubuntu.com/groovy/current/groovy-server-cloudimg-amd64.img", "e470df72fce4fb8d0ee4ef8af8eed740ee3bf51290515eb42e5c747725e98b6d", 512, "apt"},
{"ubuntu-21-04", "https://cloud-images.ubuntu.com/hirsute/current/hirsute-server-cloudimg-amd64.img", "7fab8eda0bcf6f8f6e63845ccf1e29de4706e3359c82d3888835093020fe6f05", 512, "apt"},
}
dir := t.TempDir()
ln, err := net.Listen("tcp", "192.168.122.1:0")
ln, err := net.Listen("tcp", deriveBindhost(t)+":0")
if err != nil {
t.Fatalf("can't make TCP listener: %v", err)
}
@ -359,6 +360,7 @@ func TestVMIntegrationEndToEnd(t *testing.T) {
}
loginServer := fmt.Sprintf("http://%s", ln.Addr())
t.Logf("loginServer: %s", loginServer)
cancels := make(chan func(), len(distros))
@ -457,6 +459,42 @@ func TestVMIntegrationEndToEnd(t *testing.T) {
}
}
func deriveBindhost(t *testing.T) string {
t.Helper()
ifaces, err := net.Interfaces()
if err != nil {
t.Fatal(err)
}
rex := regexp.MustCompile(`^(eth|enp|wlp|wlan)`)
for _, iface := range ifaces {
t.Logf("found interface %s: %d", iface.Name, iface.Flags&net.FlagUp)
if (iface.Flags & net.FlagUp) == 0 {
continue
}
if rex.MatchString(iface.Name) {
addrs, err := iface.Addrs()
if err != nil {
t.Fatalf("can't get address for %s: %v", iface.Name, err)
}
for _, addr := range addrs {
return netaddr.MustParseIPPrefix(addr.String()).IP().String()
}
}
}
t.Fatal("can't find a bindhost")
return "invalid"
}
func TestDeriveBindhost(t *testing.T) {
t.Log(deriveBindhost(t))
}
const metaDataTemplate = `instance-id: {{.ID}}
local-hostname: {{.Hostname}}`