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package libnetwork
import (
"net"
"runtime"
"testing"
"github.com/docker/docker/libnetwork/resolvconf"
"github.com/docker/docker/libnetwork/testutils"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
"gotest.tools/v3/skip"
)
func TestCleanupServiceDiscovery(t *testing.T) {
skip.If(t, runtime.GOOS == "windows", "test only works on linux")
defer testutils.SetupTestOSContext(t)()
c, err := New()
assert.NilError(t, err)
defer c.Stop()
cleanup := func(n Network) {
if err := n.Delete(); err != nil {
t.Error(err)
}
}
n1, err := c.NewNetwork("bridge", "net1", "", nil)
assert.NilError(t, err)
defer cleanup(n1)
n2, err := c.NewNetwork("bridge", "net2", "", nil)
assert.NilError(t, err)
defer cleanup(n2)
n1.(*network).addSvcRecords("N1ep1", "service_test", "serviceID1", net.ParseIP("192.168.0.1"), net.IP{}, true, "test")
n1.(*network).addSvcRecords("N2ep2", "service_test", "serviceID2", net.ParseIP("192.168.0.2"), net.IP{}, true, "test")
n2.(*network).addSvcRecords("N2ep1", "service_test", "serviceID1", net.ParseIP("192.168.1.1"), net.IP{}, true, "test")
n2.(*network).addSvcRecords("N2ep2", "service_test", "serviceID2", net.ParseIP("192.168.1.2"), net.IP{}, true, "test")
if len(c.svcRecords) != 2 {
t.Fatalf("Service record not added correctly:%v", c.svcRecords)
}
// cleanup net1
c.cleanupServiceDiscovery(n1.ID())
if len(c.svcRecords) != 1 {
t.Fatalf("Service record not cleaned correctly:%v", c.svcRecords)
}
c.cleanupServiceDiscovery("")
if len(c.svcRecords) != 0 {
t.Fatalf("Service record not cleaned correctly:%v", c.svcRecords)
}
}
func TestDNSOptions(t *testing.T) {
skip.If(t, runtime.GOOS == "windows", "test only works on linux")
c, err := New()
assert.NilError(t, err)
sb, err := c.NewSandbox("cnt1", nil)
assert.NilError(t, err)
cleanup := func(s *Sandbox) {
if err := s.Delete(); err != nil {
t.Error(err)
}
}
defer cleanup(sb)
sb.startResolver(false)
err = sb.setupDNS()
assert.NilError(t, err)
err = sb.rebuildDNS()
assert.NilError(t, err)
currRC, err := resolvconf.GetSpecific(sb.config.resolvConfPath)
assert.NilError(t, err)
dnsOptionsList := resolvconf.GetOptions(currRC.Content)
assert.Check(t, is.Len(dnsOptionsList, 1))
assert.Check(t, is.Equal("ndots:0", dnsOptionsList[0]))
sb.config.dnsOptionsList = []string{"ndots:5"}
err = sb.setupDNS()
assert.NilError(t, err)
currRC, err = resolvconf.GetSpecific(sb.config.resolvConfPath)
assert.NilError(t, err)
dnsOptionsList = resolvconf.GetOptions(currRC.Content)
assert.Check(t, is.Len(dnsOptionsList, 1))
assert.Check(t, is.Equal("ndots:5", dnsOptionsList[0]))
err = sb.rebuildDNS()
assert.NilError(t, err)
currRC, err = resolvconf.GetSpecific(sb.config.resolvConfPath)
assert.NilError(t, err)
dnsOptionsList = resolvconf.GetOptions(currRC.Content)
assert.Check(t, is.Len(dnsOptionsList, 1))
assert.Check(t, is.Equal("ndots:5", dnsOptionsList[0]))
sb2, err := c.NewSandbox("cnt2", nil)
assert.NilError(t, err)
defer cleanup(sb2)
sb2.startResolver(false)
sb2.config.dnsOptionsList = []string{"ndots:0"}
err = sb2.setupDNS()
assert.NilError(t, err)
err = sb2.rebuildDNS()
assert.NilError(t, err)
currRC, err = resolvconf.GetSpecific(sb2.config.resolvConfPath)
assert.NilError(t, err)
dnsOptionsList = resolvconf.GetOptions(currRC.Content)
assert.Check(t, is.Len(dnsOptionsList, 1))
assert.Check(t, is.Equal("ndots:0", dnsOptionsList[0]))
sb2.config.dnsOptionsList = []string{"ndots:foobar"}
err = sb2.setupDNS()
assert.NilError(t, err)
err = sb2.rebuildDNS()
assert.Error(t, err, "invalid number for ndots option: foobar")
sb2.config.dnsOptionsList = []string{"ndots:-1"}
err = sb2.setupDNS()
assert.NilError(t, err)
err = sb2.rebuildDNS()
assert.Error(t, err, "invalid number for ndots option: -1")
}
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