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firewaller_test.go
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firewaller_test.go
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// Copyright 2012, 2013 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package firewaller_test
import (
"fmt"
"reflect"
"sync/atomic"
"time"
"github.com/juju/charm/v8"
"github.com/juju/clock"
"github.com/juju/clock/testclock"
"github.com/juju/errors"
"github.com/juju/loggo"
"github.com/juju/names/v4"
jc "github.com/juju/testing/checkers"
"github.com/juju/utils"
"github.com/juju/worker/v2"
gc "gopkg.in/check.v1"
"gopkg.in/macaroon-bakery.v2/bakery"
"github.com/juju/juju/api"
basetesting "github.com/juju/juju/api/base/testing"
"github.com/juju/juju/api/credentialvalidator"
"github.com/juju/juju/api/crossmodelrelations"
apifirewaller "github.com/juju/juju/api/firewaller"
"github.com/juju/juju/api/remoterelations"
apitesting "github.com/juju/juju/api/testing"
"github.com/juju/juju/apiserver/params"
"github.com/juju/juju/core/crossmodel"
"github.com/juju/juju/core/network"
"github.com/juju/juju/core/network/firewall"
"github.com/juju/juju/core/status"
"github.com/juju/juju/environs"
"github.com/juju/juju/environs/config"
"github.com/juju/juju/environs/context"
"github.com/juju/juju/environs/instances"
jujutesting "github.com/juju/juju/juju/testing"
"github.com/juju/juju/provider/dummy"
"github.com/juju/juju/state"
statetesting "github.com/juju/juju/state/testing"
coretesting "github.com/juju/juju/testing"
"github.com/juju/juju/testing/factory"
"github.com/juju/juju/worker/firewaller"
)
const allEndpoints = ""
// firewallerBaseSuite implements common functionality for embedding
// into each of the other per-mode suites.
type firewallerBaseSuite struct {
jujutesting.JujuConnSuite
op <-chan dummy.Operation
charm *state.Charm
controllerMachine *state.Machine
controllerPassword string
st api.Connection
firewaller *apifirewaller.Client
remoteRelations *remoterelations.Client
crossmodelFirewaller *crossmodelrelations.Client
clock clock.Clock
callCtx context.ProviderCallContext
credentialsFacade *credentialvalidator.Facade
}
func (s *firewallerBaseSuite) SetUpTest(c *gc.C) {
s.JujuConnSuite.SetUpTest(c)
s.callCtx = context.NewCloudCallContext()
}
var _ worker.Worker = (*firewaller.Firewaller)(nil)
func (s *firewallerBaseSuite) setUpTest(c *gc.C, firewallMode string) {
add := map[string]interface{}{"firewall-mode": firewallMode}
s.DummyConfig = dummy.SampleConfig().Merge(add).Delete("admin-secret")
s.JujuConnSuite.SetUpTest(c)
s.charm = s.AddTestingCharm(c, "dummy")
// Create a manager machine and login to the API.
var err error
s.controllerMachine, err = s.State.AddMachine("quantal", state.JobManageModel)
c.Assert(err, jc.ErrorIsNil)
s.controllerPassword, err = utils.RandomPassword()
c.Assert(err, jc.ErrorIsNil)
err = s.controllerMachine.SetPassword(s.controllerPassword)
c.Assert(err, jc.ErrorIsNil)
err = s.controllerMachine.SetProvisioned("i-manager", "", "fake_nonce", nil)
c.Assert(err, jc.ErrorIsNil)
s.st = s.OpenAPIAsMachine(c, s.controllerMachine.Tag(), s.controllerPassword, "fake_nonce")
c.Assert(s.st, gc.NotNil)
// Create the API facades.
firewallerClient, err := apifirewaller.NewClient(s.st)
c.Assert(err, jc.ErrorIsNil)
s.firewaller = firewallerClient
s.remoteRelations = remoterelations.NewClient(s.st)
c.Assert(s.remoteRelations, gc.NotNil)
s.credentialsFacade = credentialvalidator.NewFacade(s.st)
}
// assertPorts retrieves the open ports of the instance and compares them
// to the expected.
func (s *firewallerBaseSuite) assertPorts(c *gc.C, inst instances.Instance, machineId string, expected firewall.IngressRules) {
fwInst, ok := inst.(instances.InstanceFirewaller)
c.Assert(ok, gc.Equals, true)
start := time.Now()
for {
s.BackingState.StartSync()
got, err := fwInst.IngressRules(s.callCtx, machineId)
if err != nil {
c.Fatal(err)
return
}
got.Sort()
expected.Sort()
if reflect.DeepEqual(got, expected) {
c.Succeed()
return
}
if time.Since(start) > coretesting.LongWait {
c.Fatalf("timed out: expected %q; got %q", expected, got)
return
}
time.Sleep(coretesting.ShortWait)
}
}
// assertEnvironPorts retrieves the open ports of environment and compares them
// to the expected.
func (s *firewallerBaseSuite) assertEnvironPorts(c *gc.C, expected firewall.IngressRules) {
fwEnv, ok := s.Environ.(environs.Firewaller)
c.Assert(ok, gc.Equals, true)
start := time.Now()
for {
s.BackingState.StartSync()
got, err := fwEnv.IngressRules(s.callCtx)
if err != nil {
c.Fatal(err)
return
}
got.Sort()
expected.Sort()
if reflect.DeepEqual(got, expected) {
c.Succeed()
return
}
if time.Since(start) > coretesting.LongWait {
c.Fatalf("timed out: expected %q; got %q", expected, got)
return
}
time.Sleep(coretesting.ShortWait)
}
}
func (s *firewallerBaseSuite) addUnit(c *gc.C, app *state.Application) (*state.Unit, *state.Machine) {
u, err := app.AddUnit(state.AddUnitParams{})
c.Assert(err, jc.ErrorIsNil)
err = s.State.AssignUnit(u, state.AssignCleanEmpty)
c.Assert(err, jc.ErrorIsNil)
id, err := u.AssignedMachineId()
c.Assert(err, jc.ErrorIsNil)
m, err := s.State.Machine(id)
c.Assert(err, jc.ErrorIsNil)
return u, m
}
// startInstance starts a new instance for the given machine.
func (s *firewallerBaseSuite) startInstance(c *gc.C, m *state.Machine) instances.Instance {
inst, hc := jujutesting.AssertStartInstance(c, s.Environ, s.callCtx, s.ControllerConfig.ControllerUUID(), m.Id())
err := m.SetProvisioned(inst.Id(), "", "fake_nonce", hc)
c.Assert(err, jc.ErrorIsNil)
return inst
}
type InstanceModeSuite struct {
firewallerBaseSuite
}
var _ = gc.Suite(&InstanceModeSuite{})
func (s *InstanceModeSuite) SetUpTest(c *gc.C) {
s.firewallerBaseSuite.setUpTest(c, config.FwInstance)
}
// mockClock will panic if anything but After is called
type mockClock struct {
clock.Clock
wait time.Duration
c *gc.C
}
func (m *mockClock) Now() time.Time {
return time.Now()
}
func (m *mockClock) After(duration time.Duration) <-chan time.Time {
m.wait = duration
return time.After(time.Millisecond)
}
func (s *InstanceModeSuite) newFirewaller(c *gc.C) worker.Worker {
return s.newFirewallerWithClock(c, &mockClock{c: c})
}
func (s *InstanceModeSuite) newFirewallerWithClock(c *gc.C, clock clock.Clock) worker.Worker {
s.clock = clock
fwEnv, ok := s.Environ.(environs.Firewaller)
c.Assert(ok, gc.Equals, true)
cfg := firewaller.Config{
ModelUUID: s.State.ModelUUID(),
Mode: config.FwInstance,
EnvironFirewaller: fwEnv,
EnvironInstances: s.Environ,
FirewallerAPI: s.firewaller,
RemoteRelationsApi: s.remoteRelations,
NewCrossModelFacadeFunc: func(*api.Info) (firewaller.CrossModelFirewallerFacadeCloser, error) {
return s.crossmodelFirewaller, nil
},
Clock: s.clock,
Logger: loggo.GetLogger("test"),
CredentialAPI: s.credentialsFacade,
}
fw, err := firewaller.NewFirewaller(cfg)
c.Assert(err, jc.ErrorIsNil)
return fw
}
func (s *InstanceModeSuite) TestStartStop(c *gc.C) {
fw := s.newFirewaller(c)
statetesting.AssertKillAndWait(c, fw)
}
func (s *InstanceModeSuite) TestNotExposedApplication(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
app := s.AddTestingApplication(c, "wordpress", s.charm)
u, m := s.addUnit(c, app)
inst := s.startInstance(c, m)
mustOpenPortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
network.MustParsePortRange("8080/tcp"),
})
s.assertPorts(c, inst, m.Id(), nil)
mustClosePortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
s.assertPorts(c, inst, m.Id(), nil)
}
func (s *InstanceModeSuite) TestExposedApplication(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
app := s.AddTestingApplication(c, "wordpress", s.charm)
err := app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u, m := s.addUnit(c, app)
inst := s.startInstance(c, m)
mustOpenPortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80-90/tcp"),
network.MustParsePortRange("8080/tcp"),
})
s.assertPorts(c, inst, m.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80-90/tcp"), firewall.AllNetworksIPV4CIDR),
firewall.NewIngressRule(network.MustParsePortRange("8080/tcp"), firewall.AllNetworksIPV4CIDR),
})
mustClosePortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80-90/tcp"),
})
s.assertPorts(c, inst, m.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("8080/tcp"), firewall.AllNetworksIPV4CIDR),
})
}
func (s *InstanceModeSuite) TestMultipleExposedApplications(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
app1 := s.AddTestingApplication(c, "wordpress", s.charm)
err := app1.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u1, m1 := s.addUnit(c, app1)
inst1 := s.startInstance(c, m1)
mustOpenPortRanges(c, s.State, u1, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
network.MustParsePortRange("8080/tcp"),
})
app2 := s.AddTestingApplication(c, "mysql", s.charm)
c.Assert(err, jc.ErrorIsNil)
err = app2.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u2, m2 := s.addUnit(c, app2)
inst2 := s.startInstance(c, m2)
mustOpenPortRanges(c, s.State, u2, allEndpoints, []network.PortRange{
network.MustParsePortRange("3306/tcp"),
})
s.assertPorts(c, inst1, m1.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
firewall.NewIngressRule(network.MustParsePortRange("8080/tcp"), firewall.AllNetworksIPV4CIDR),
})
s.assertPorts(c, inst2, m2.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("3306/tcp"), firewall.AllNetworksIPV4CIDR),
})
mustClosePortRanges(c, s.State, u1, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
mustClosePortRanges(c, s.State, u2, allEndpoints, []network.PortRange{
network.MustParsePortRange("3306/tcp"),
})
s.assertPorts(c, inst1, m1.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("8080/tcp"), firewall.AllNetworksIPV4CIDR),
})
s.assertPorts(c, inst2, m2.Id(), nil)
}
func (s *InstanceModeSuite) TestMachineWithoutInstanceId(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
app := s.AddTestingApplication(c, "wordpress", s.charm)
err := app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
// add a unit but don't start its instance yet.
u1, m1 := s.addUnit(c, app)
// add another unit and start its instance, so that
// we're sure the firewaller has seen the first instance.
u2, m2 := s.addUnit(c, app)
inst2 := s.startInstance(c, m2)
mustOpenPortRanges(c, s.State, u2, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
s.assertPorts(c, inst2, m2.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
inst1 := s.startInstance(c, m1)
mustOpenPortRanges(c, s.State, u1, allEndpoints, []network.PortRange{
network.MustParsePortRange("8080/tcp"),
})
s.assertPorts(c, inst1, m1.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("8080/tcp"), firewall.AllNetworksIPV4CIDR),
})
}
func (s *InstanceModeSuite) TestMultipleUnits(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
app := s.AddTestingApplication(c, "wordpress", s.charm)
err := app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u1, m1 := s.addUnit(c, app)
inst1 := s.startInstance(c, m1)
mustOpenPortRanges(c, s.State, u1, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
u2, m2 := s.addUnit(c, app)
inst2 := s.startInstance(c, m2)
mustOpenPortRanges(c, s.State, u2, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
s.assertPorts(c, inst1, m1.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
s.assertPorts(c, inst2, m2.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
mustClosePortRanges(c, s.State, u1, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
mustClosePortRanges(c, s.State, u2, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
s.assertPorts(c, inst1, m1.Id(), nil)
s.assertPorts(c, inst2, m2.Id(), nil)
}
func (s *InstanceModeSuite) TestStartWithState(c *gc.C) {
app := s.AddTestingApplication(c, "wordpress", s.charm)
err := app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u, m := s.addUnit(c, app)
inst := s.startInstance(c, m)
mustOpenPortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
network.MustParsePortRange("8080/tcp"),
})
// Nothing open without firewaller.
s.assertPorts(c, inst, m.Id(), nil)
// Starting the firewaller opens the ports.
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
s.assertPorts(c, inst, m.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
firewall.NewIngressRule(network.MustParsePortRange("8080/tcp"), firewall.AllNetworksIPV4CIDR),
})
err = app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
}
func (s *InstanceModeSuite) TestStartWithPartialState(c *gc.C) {
m, err := s.State.AddMachine("quantal", state.JobHostUnits)
c.Assert(err, jc.ErrorIsNil)
inst := s.startInstance(c, m)
app := s.AddTestingApplication(c, "wordpress", s.charm)
err = app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
// Starting the firewaller, no open ports.
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
s.assertPorts(c, inst, m.Id(), nil)
// Complete steps to open port.
u, err := app.AddUnit(state.AddUnitParams{})
c.Assert(err, jc.ErrorIsNil)
err = u.AssignToMachine(m)
c.Assert(err, jc.ErrorIsNil)
mustOpenPortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
s.assertPorts(c, inst, m.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
}
func (s *InstanceModeSuite) TestStartWithUnexposedApplication(c *gc.C) {
m, err := s.State.AddMachine("quantal", state.JobHostUnits)
c.Assert(err, jc.ErrorIsNil)
inst := s.startInstance(c, m)
app := s.AddTestingApplication(c, "wordpress", s.charm)
u, err := app.AddUnit(state.AddUnitParams{})
c.Assert(err, jc.ErrorIsNil)
err = u.AssignToMachine(m)
c.Assert(err, jc.ErrorIsNil)
mustOpenPortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
// Starting the firewaller, no open ports.
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
s.assertPorts(c, inst, m.Id(), nil)
// Expose service.
err = app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
s.assertPorts(c, inst, m.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
}
func assertMachineInMachineds(c *gc.C, fw *firewaller.Firewaller, tag names.MachineTag, find bool) {
machineds := firewaller.GetMachineds(fw)
_, found := machineds[tag]
c.Assert(found, gc.Equals, find)
}
func (s *InstanceModeSuite) TestStartMachineWithManualMachine(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
m, err := s.State.AddOneMachine(state.MachineTemplate{
Series: "quantal",
Jobs: []state.MachineJob{state.JobHostUnits},
InstanceId: "2",
Nonce: "manual:",
})
c.Assert(err, jc.ErrorIsNil)
err = firewaller.StartMachine(fw.(*firewaller.Firewaller), m.MachineTag())
c.Assert(err, jc.ErrorIsNil)
assertMachineInMachineds(c, fw.(*firewaller.Firewaller), m.MachineTag(), false)
m2, err := s.State.AddOneMachine(state.MachineTemplate{
Series: "quantal",
Jobs: []state.MachineJob{state.JobHostUnits},
})
c.Assert(err, jc.ErrorIsNil)
err = firewaller.StartMachine(fw.(*firewaller.Firewaller), m2.MachineTag())
c.Assert(err, jc.ErrorIsNil)
assertMachineInMachineds(c, fw.(*firewaller.Firewaller), m2.MachineTag(), true)
}
func (s *InstanceModeSuite) TestSetClearExposedApplication(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
app := s.AddTestingApplication(c, "wordpress", s.charm)
u, m := s.addUnit(c, app)
inst := s.startInstance(c, m)
mustOpenPortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
network.MustParsePortRange("8080/tcp"),
})
// Not exposed service, so no open port.
s.assertPorts(c, inst, m.Id(), nil)
// SeExposed opens the ports.
err := app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
s.assertPorts(c, inst, m.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
firewall.NewIngressRule(network.MustParsePortRange("8080/tcp"), firewall.AllNetworksIPV4CIDR),
})
// ClearExposed closes the ports again.
err = app.ClearExposed()
c.Assert(err, jc.ErrorIsNil)
s.assertPorts(c, inst, m.Id(), nil)
}
func (s *InstanceModeSuite) TestRemoveUnit(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
app := s.AddTestingApplication(c, "wordpress", s.charm)
err := app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u1, m1 := s.addUnit(c, app)
inst1 := s.startInstance(c, m1)
mustOpenPortRanges(c, s.State, u1, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
u2, m2 := s.addUnit(c, app)
inst2 := s.startInstance(c, m2)
mustOpenPortRanges(c, s.State, u2, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
s.assertPorts(c, inst1, m1.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
s.assertPorts(c, inst2, m2.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
// Remove unit.
err = u1.EnsureDead()
c.Assert(err, jc.ErrorIsNil)
err = u1.Remove()
c.Assert(err, jc.ErrorIsNil)
s.assertPorts(c, inst1, m1.Id(), nil)
s.assertPorts(c, inst2, m2.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
}
func (s *InstanceModeSuite) TestRemoveApplication(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
app := s.AddTestingApplication(c, "wordpress", s.charm)
err := app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u, m := s.addUnit(c, app)
inst := s.startInstance(c, m)
mustOpenPortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
s.assertPorts(c, inst, m.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
// Remove application.
err = u.EnsureDead()
c.Assert(err, jc.ErrorIsNil)
err = u.Remove()
c.Assert(err, jc.ErrorIsNil)
err = app.Destroy()
c.Assert(err, jc.ErrorIsNil)
s.assertPorts(c, inst, m.Id(), nil)
}
func (s *InstanceModeSuite) TestRemoveMultipleApplications(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
app1 := s.AddTestingApplication(c, "wordpress", s.charm)
err := app1.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u1, m1 := s.addUnit(c, app1)
inst1 := s.startInstance(c, m1)
mustOpenPortRanges(c, s.State, u1, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
app2 := s.AddTestingApplication(c, "mysql", s.charm)
err = app2.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u2, m2 := s.addUnit(c, app2)
inst2 := s.startInstance(c, m2)
mustOpenPortRanges(c, s.State, u2, allEndpoints, []network.PortRange{
network.MustParsePortRange("3306/tcp"),
})
s.assertPorts(c, inst1, m1.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
s.assertPorts(c, inst2, m2.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("3306/tcp"), firewall.AllNetworksIPV4CIDR),
})
// Remove applications.
err = u2.EnsureDead()
c.Assert(err, jc.ErrorIsNil)
err = u2.Remove()
c.Assert(err, jc.ErrorIsNil)
err = app2.Destroy()
c.Assert(err, jc.ErrorIsNil)
err = u1.EnsureDead()
c.Assert(err, jc.ErrorIsNil)
err = u1.Remove()
c.Assert(err, jc.ErrorIsNil)
err = app1.Destroy()
c.Assert(err, jc.ErrorIsNil)
s.assertPorts(c, inst1, m1.Id(), nil)
s.assertPorts(c, inst2, m2.Id(), nil)
}
func (s *InstanceModeSuite) TestDeadMachine(c *gc.C) {
fw := s.newFirewaller(c)
defer statetesting.AssertKillAndWait(c, fw)
app := s.AddTestingApplication(c, "wordpress", s.charm)
err := app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u, m := s.addUnit(c, app)
inst := s.startInstance(c, m)
mustOpenPortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
s.assertPorts(c, inst, m.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
// Remove unit and application, also tested without. Has no effect.
err = u.EnsureDead()
c.Assert(err, jc.ErrorIsNil)
err = u.Remove()
c.Assert(err, jc.ErrorIsNil)
err = app.Destroy()
c.Assert(err, jc.ErrorIsNil)
// Kill machine.
err = m.Refresh()
c.Assert(err, jc.ErrorIsNil)
err = m.EnsureDead()
c.Assert(err, jc.ErrorIsNil)
s.assertPorts(c, inst, m.Id(), nil)
}
func (s *InstanceModeSuite) TestRemoveMachine(c *gc.C) {
fw := s.newFirewaller(c)
app := s.AddTestingApplication(c, "wordpress", s.charm)
err := app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u, m := s.addUnit(c, app)
inst := s.startInstance(c, m)
mustOpenPortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
s.assertPorts(c, inst, m.Id(), firewall.IngressRules{
firewall.NewIngressRule(network.MustParsePortRange("80/tcp"), firewall.AllNetworksIPV4CIDR),
})
// Remove unit.
err = u.EnsureDead()
c.Assert(err, jc.ErrorIsNil)
err = u.Remove()
c.Assert(err, jc.ErrorIsNil)
// Remove machine. Nothing bad should happen, but can't
// assert port state since the machine must have been
// destroyed and we lost its reference.
err = m.Refresh()
c.Assert(err, jc.ErrorIsNil)
err = m.EnsureDead()
c.Assert(err, jc.ErrorIsNil)
err = m.Remove()
c.Assert(err, jc.ErrorIsNil)
// TODO (manadart 2019-02-01): This fails intermittently with a "not found"
// error for the machine. This is not a huge problem in production, as the
// worker will restart and proceed happily thereafter.
// That error is detected here for expediency, but the ideal mitigation is
// a refactoring of the worker logic as per LP:1814277.
fw.Kill()
err = fw.Wait()
c.Assert(err == nil || params.IsCodeNotFound(err), jc.IsTrue)
}
func (s *InstanceModeSuite) TestStartWithStateOpenPortsBroken(c *gc.C) {
app := s.AddTestingApplication(c, "wordpress", s.charm)
err := app.SetExposed(nil, nil, nil)
c.Assert(err, jc.ErrorIsNil)
u, m := s.addUnit(c, app)
inst := s.startInstance(c, m)
mustOpenPortRanges(c, s.State, u, allEndpoints, []network.PortRange{
network.MustParsePortRange("80/tcp"),
})
// Nothing open without firewaller.
s.assertPorts(c, inst, m.Id(), nil)
dummy.SetInstanceBroken(inst, "OpenPorts")
// Starting the firewaller should attempt to open the ports,
// and fail due to the method being broken.
fw := s.newFirewaller(c)
errc := make(chan error, 1)
go func() { errc <- fw.Wait() }()
s.BackingState.StartSync()
select {
case err := <-errc:
c.Assert(err, gc.ErrorMatches,
`cannot respond to units changes for "machine-1": dummyInstance.OpenPorts is broken`)
case <-time.After(coretesting.LongWait):
fw.Kill()
fw.Wait()
c.Fatal("timed out waiting for firewaller to stop")
}
}
func (s *InstanceModeSuite) setupRemoteRelationRequirerRoleConsumingSide(
c *gc.C, published chan bool, apiErr *bool, ingressRequired *bool, clock clock.Clock,
) (worker.Worker, *state.RelationUnit) {
// Set up the consuming model - create the local app.
wordpress := s.AddTestingApplication(c, "wordpress", s.AddTestingCharm(c, "wordpress"))
// Set up the consuming model - create the remote app.
offeringModelTag := names.NewModelTag(utils.MustNewUUID().String())
appToken := utils.MustNewUUID().String()
app, err := s.State.AddRemoteApplication(state.AddRemoteApplicationParams{
Name: "mysql", SourceModel: offeringModelTag,
Endpoints: []charm.Relation{{Name: "database", Interface: "mysql", Role: "provider", Scope: "global"}},
})
c.Assert(err, jc.ErrorIsNil)
// Create the external controller info.
ec := state.NewExternalControllers(s.State)
_, err = ec.Save(crossmodel.ControllerInfo{
ControllerTag: coretesting.ControllerTag,
Addrs: []string{"1.2.3.4:1234"},
CACert: coretesting.CACert}, offeringModelTag.Id())
c.Assert(err, jc.ErrorIsNil)
mac, err := apitesting.NewMacaroon("apimac")
c.Assert(err, jc.ErrorIsNil)
var relToken string
apiCaller := basetesting.APICallerFunc(func(objType string, version int, id, request string, arg, result interface{}) error {
c.Check(objType, gc.Equals, "CrossModelRelations")
c.Check(version, gc.Equals, 0)
c.Check(id, gc.Equals, "")
c.Check(request, gc.Equals, "PublishIngressNetworkChanges")
expected := params.IngressNetworksChanges{
Changes: []params.IngressNetworksChangeEvent{{
RelationToken: relToken,
ApplicationToken: appToken,
}},
}
// Extract macaroons so we can compare them separately
// (as they can't be compared using DeepEquals due to 'UnmarshaledAs')
expectedMacs := arg.(params.IngressNetworksChanges).Changes[0].Macaroons
arg.(params.IngressNetworksChanges).Changes[0].Macaroons = nil
c.Assert(len(expectedMacs), gc.Equals, 1)
apitesting.MacaroonEquals(c, expectedMacs[0], mac)
// Networks may be empty or not, depending on coalescing of watcher events.
// We may get an initial empty event followed by an event with a network.
// Or we may get just the event with a network.
// Set the arg networks to empty and compare below.
changes := arg.(params.IngressNetworksChanges)
argNetworks := changes.Changes[0].Networks
argIngressRequired := changes.Changes[0].IngressRequired
changes.Changes[0].Networks = nil
expected.Changes[0].IngressRequired = argIngressRequired
expected.Changes[0].BakeryVersion = bakery.LatestVersion
c.Check(arg, gc.DeepEquals, expected)
if !*ingressRequired {
c.Assert(changes.Changes[0].Networks, gc.HasLen, 0)
}
if *ingressRequired && len(argNetworks) > 0 {
c.Assert(argIngressRequired, jc.IsTrue)
c.Assert(argNetworks, jc.DeepEquals, []string{"10.0.0.4/32"})
}
changes.Changes[0].Macaroons = expectedMacs
c.Assert(result, gc.FitsTypeOf, ¶ms.ErrorResults{})
*(result.(*params.ErrorResults)) = params.ErrorResults{
Results: []params.ErrorResult{{}},
}
if *apiErr {
return errors.New("fail")
}
if !*ingressRequired || len(argNetworks) > 0 {
published <- true
}
return nil
})
s.crossmodelFirewaller = crossmodelrelations.NewClient(apiCaller)
c.Assert(s.crossmodelFirewaller, gc.NotNil)
// Create the firewaller facade on the consuming model.
fw := s.newFirewallerWithClock(c, clock)
eps, err := s.State.InferEndpoints("wordpress", "mysql")
c.Assert(err, jc.ErrorIsNil)
rel, err := s.State.AddRelation(eps...)
c.Assert(err, jc.ErrorIsNil)
// Export the relation details so the firewaller knows it's ready to be processed.
re := s.State.RemoteEntities()
relToken, err = re.ExportLocalEntity(rel.Tag())
c.Assert(err, jc.ErrorIsNil)
err = re.SaveMacaroon(rel.Tag(), mac)
c.Assert(err, jc.ErrorIsNil)
err = re.ImportRemoteEntity(app.Tag(), appToken)
c.Assert(err, jc.ErrorIsNil)
// We should not have published any ingress events yet - no unit has entered scope.
select {
case <-time.After(coretesting.ShortWait):
case <-published:
c.Fatal("unexpected ingress change to be published")
}
// Add a public address to the consuming unit so the firewaller can use it.
wpm := s.Factory.MakeMachine(c, &factory.MachineParams{
Addresses: network.SpaceAddresses{network.NewSpaceAddress("10.0.0.4")},
})
u, err := wordpress.AddUnit(state.AddUnitParams{})
c.Assert(err, jc.ErrorIsNil)
err = u.AssignToMachine(wpm)
c.Assert(err, jc.ErrorIsNil)
ru, err := rel.Unit(u)
c.Assert(err, jc.ErrorIsNil)
return fw, ru
}
func (s *InstanceModeSuite) TestRemoteRelationRequirerRoleConsumingSide(c *gc.C) {
published := make(chan bool)
ingressRequired := true
apiErr := false
fw, ru := s.setupRemoteRelationRequirerRoleConsumingSide(c, published, &apiErr, &ingressRequired, &mockClock{c: c})
defer statetesting.AssertKillAndWait(c, fw)
// Add a unit on the consuming app and have it enter the relation scope.
// This will trigger the firewaller to publish the changes.
err := ru.EnterScope(map[string]interface{}{})
c.Assert(err, jc.ErrorIsNil)
s.BackingState.StartSync()
select {
case <-time.After(coretesting.LongWait):
c.Fatal("time out waiting for ingress change to be published on enter scope")
case <-published:
}
// Check the relation ready poll time is as expected.
c.Assert(s.clock.(*mockClock).wait, gc.Equals, 3*time.Second)
// Change should be sent when unit leaves scope.
ingressRequired = false
err = ru.LeaveScope()
c.Assert(err, jc.ErrorIsNil)
s.BackingState.StartSync()
select {
case <-time.After(coretesting.LongWait):
c.Fatal("time out waiting for ingress change to be published on leave scope")
case <-published:
}
}
func (s *InstanceModeSuite) TestRemoteRelationWorkerError(c *gc.C) {
published := make(chan bool)
ingressRequired := true
apiErr := true
fw, ru := s.setupRemoteRelationRequirerRoleConsumingSide(c, published, &apiErr, &ingressRequired, testclock.NewClock(time.Time{}))
defer statetesting.AssertKillAndWait(c, fw)
// Add a unit on the consuming app and have it enter the relation scope.
// This will trigger the firewaller to try and publish the changes.
err := ru.EnterScope(map[string]interface{}{})
c.Assert(err, jc.ErrorIsNil)
s.BackingState.StartSync()
// We should not have published any ingress events yet - no changed published.
select {
case <-time.After(coretesting.ShortWait):
case <-published:
c.Fatal("unexpected ingress change to be published")
}
// Give the worker time to restart and try again.
apiErr = false
s.clock.(*testclock.Clock).WaitAdvance(60*time.Second, coretesting.LongWait, 1)
select {
case <-time.After(coretesting.LongWait):
c.Fatal("time out waiting for ingress change to be published on enter scope")
case <-published:
}
}
func (s *InstanceModeSuite) TestRemoteRelationProviderRoleConsumingSide(c *gc.C) {
// Set up the consuming model - create the local app.
s.AddTestingApplication(c, "mysql", s.AddTestingCharm(c, "mysql"))
// Set up the consuming model - create the remote app.
offeringModelTag := names.NewModelTag(utils.MustNewUUID().String())
appToken := utils.MustNewUUID().String()
app, err := s.State.AddRemoteApplication(state.AddRemoteApplicationParams{
Name: "wordpress", SourceModel: offeringModelTag,
Endpoints: []charm.Relation{{Name: "database", Interface: "mysql", Role: "requirer", Scope: "global"}},
})
c.Assert(err, jc.ErrorIsNil)
// Create the external controller info.
ec := state.NewExternalControllers(s.State)
_, err = ec.Save(crossmodel.ControllerInfo{
ControllerTag: coretesting.ControllerTag,
Addrs: []string{"1.2.3.4:1234"},
CACert: coretesting.CACert}, offeringModelTag.Id())
c.Assert(err, jc.ErrorIsNil)
mac, err := apitesting.NewMacaroon("apimac")
c.Assert(err, jc.ErrorIsNil)
watched := make(chan bool)
var relToken string
callCount := int32(0)
apiCaller := basetesting.APICallerFunc(func(objType string, version int, id, request string, arg, result interface{}) error {
switch atomic.LoadInt32(&callCount) {
case 0:
c.Check(objType, gc.Equals, "CrossModelRelations")
c.Check(version, gc.Equals, 0)
c.Check(id, gc.Equals, "")
c.Check(request, gc.Equals, "WatchEgressAddressesForRelations")
expected := params.RemoteEntityArgs{
Args: []params.RemoteEntityArg{{
Token: relToken,
}},