// updateAllMachines finds all machines and resets the stored state address
// in each of them. The address does not include the port.
func updateAllMachines(apiState *api.State, stateAddr string) ([]restoreResult, error) {
client := apiState.Client()
status, err := client.Status(nil)
if err != nil {
return nil, errors.Annotate(err, "cannot get status")
}
pendingMachineCount := 0
done := make(chan restoreResult)
for _, machineStatus := range status.Machines {
// A newly resumed state server requires no updating, and more
// than one state server is not yet support by this plugin.
if machineStatus.HasVote || machineStatus.WantsVote || machineStatus.Life == "dead" {
continue
}
pendingMachineCount++
machine := machineStatus
go func() {
err := runMachineUpdate(client, machine.Id, setAgentAddressScript(stateAddr))
if err != nil {
logger.Errorf("failed to update machine %s: %v", machine.Id, err)
} else {
progress("updated machine %s", machine.Id)
}
r := restoreResult{machineName: machine.Id, err: err}
done <- r
}()
}
results := make([]restoreResult, pendingMachineCount)
for ; pendingMachineCount > 0; pendingMachineCount-- {
results[pendingMachineCount-1] = <-done
}
return results, nil
}
func restoreBootstrapMachine(st *api.State, backupFile string, agentConf agentConfig) (addr string, err error) {
client := st.Client()
addr, err = client.PublicAddress("0")
if err != nil {
return "", errors.Annotate(err, "cannot get public address of bootstrap machine")
}
paddr, err := client.PrivateAddress("0")
if err != nil {
return "", errors.Annotate(err, "cannot get private address of bootstrap machine")
}
status, err := client.Status(nil)
if err != nil {
return "", errors.Annotate(err, "cannot get environment status")
}
info, ok := status.Machines["0"]
if !ok {
return "", fmt.Errorf("cannot find bootstrap machine in status")
}
newInstId := instance.Id(info.InstanceId)
progress("copying backup file to bootstrap host")
if err := sendViaScp(backupFile, addr, "~/juju-backup.tgz"); err != nil {
return "", errors.Annotate(err, "cannot copy backup file to bootstrap instance")
}
progress("updating bootstrap machine")
if err := runViaSsh(addr, updateBootstrapMachineScript(newInstId, agentConf, addr, paddr)); err != nil {
return "", errors.Annotate(err, "update script failed")
}
return addr, nil
}
// testNamespace starts a worker and ensures that
// the rsyslog config file has the expected filename,
// and the appropriate log dir is used.
func (s *RsyslogSuite) testNamespace(c *gc.C, st *api.State, tag names.Tag, namespace, expectedFilename, expectedLogDir string) {
restarted := make(chan struct{}, 2) // once for create, once for teardown
s.PatchValue(rsyslog.RestartRsyslog, func() error {
restarted <- struct{}{}
return nil
})
err := os.MkdirAll(expectedLogDir, 0755)
c.Assert(err, jc.ErrorIsNil)
worker, err := rsyslog.NewRsyslogConfigWorker(st.Rsyslog(), rsyslog.RsyslogModeAccumulate, tag, namespace, []string{"0.1.2.3"})
c.Assert(err, jc.ErrorIsNil)
defer func() { c.Assert(worker.Wait(), gc.IsNil) }()
defer worker.Kill()
// change the API HostPorts to trigger an rsyslog restart
newHostPorts := network.NewHostPorts(6541, "127.0.0.1")
err = s.State.SetAPIHostPorts([][]network.HostPort{newHostPorts})
c.Assert(err, jc.ErrorIsNil)
// Wait for rsyslog to be restarted, so we can check to see
// what the name of the config file is.
waitForRestart(c, restarted)
// Ensure that ca-cert.pem gets written to the expected log dir.
waitForFile(c, filepath.Join(expectedLogDir, "ca-cert.pem"))
dir, err := os.Open(*rsyslog.RsyslogConfDir)
c.Assert(err, jc.ErrorIsNil)
names, err := dir.Readdirnames(-1)
dir.Close()
c.Assert(err, jc.ErrorIsNil)
c.Assert(names, gc.HasLen, 1)
c.Assert(names[0], gc.Equals, expectedFilename)
}
// updateAllMachines finds all machines and resets the stored state address
// in each of them. The address does not include the port.
func updateAllMachines(apiState *api.State, stateAddr string) error {
client := apiState.Client()
status, err := client.Status(nil)
if err != nil {
return errors.Annotate(err, "cannot get status")
}
pendingMachineCount := 0
done := make(chan error)
for _, machineStatus := range status.Machines {
// A newly resumed state server requires no updating, and more
// than one state server is not yet support by this plugin.
if machineStatus.HasVote || machineStatus.WantsVote || params.Life(machineStatus.Life) == params.Dead {
continue
}
pendingMachineCount++
machine := machineStatus
go func() {
err := runMachineUpdate(client, machine.Id, setAgentAddressScript(stateAddr))
if err != nil {
logger.Errorf("failed to update machine %s: %v", machine.Id, err)
} else {
progress("updated machine %s", machine.Id)
}
done <- err
}()
}
err = nil
for ; pendingMachineCount > 0; pendingMachineCount-- {
if updateErr := <-done; updateErr != nil && err == nil {
err = errors.Annotate(updateErr, "machine update failed")
}
}
return err
}
func opClientAddServiceUnits(c *gc.C, st *api.State, mst *state.State) (func(), error) {
_, err := st.Client().AddServiceUnits("nosuch", 1, "")
if params.IsCodeNotFound(err) {
err = nil
}
return func() {}, err
}
func opClientServiceDestroy(c *gc.C, st *api.State, mst *state.State) (func(), error) {
err := st.Client().ServiceDestroy("non-existent")
if params.IsCodeNotFound(err) {
err = nil
}
return func() {}, err
}
func opClientDestroyServiceUnits(c *gc.C, st *api.State, mst *state.State) (func(), error) {
err := st.Client().DestroyServiceUnits("wordpress/99")
if err != nil && strings.HasPrefix(err.Error(), "no units were destroyed") {
err = nil
}
return func() {}, err
}
func opClientServiceUnexpose(c *gc.C, st *api.State, mst *state.State) (func(), error) {
err := st.Client().ServiceUnexpose("wordpress")
if err != nil {
return func() {}, err
}
return func() {}, nil
}
func opClientEnvironmentGet(c *gc.C, st *api.State, mst *state.State) (func(), error) {
_, err := st.Client().EnvironmentGet()
if err != nil {
return func() {}, err
}
return func() {}, nil
}
func opClientServiceSetYAML(c *gc.C, st *api.State, mst *state.State) (func(), error) {
err := st.Client().ServiceSetYAML("wordpress", `"wordpress": {"blog-title": "foo"}`)
if err != nil {
return func() {}, err
}
return resetBlogTitle(c, st), nil
}
func opClientWatchAll(c *gc.C, st *api.State, mst *state.State) (func(), error) {
watcher, err := st.Client().WatchAll()
if err == nil {
watcher.Stop()
}
return func() {}, err
}
func opClientDestroyRelation(c *gc.C, st *api.State, mst *state.State) (func(), error) {
err := st.Client().DestroyRelation("nosuch1", "nosuch2")
if params.IsCodeNotFound(err) {
err = nil
}
return func() {}, err
}
func (s *workerSuite) SetUpTest(c *gc.C) {
//TODO(bogdanteleaga): Fix this on windows
if runtime.GOOS == "windows" {
c.Skip("bug 1403084: authentication worker not implemented yet on windows")
}
s.JujuConnSuite.SetUpTest(c)
// Default ssh user is currently "ubuntu".
c.Assert(authenticationworker.SSHUser, gc.Equals, "ubuntu")
// Set the ssh user to empty (the current user) as required by the test infrastructure.
s.PatchValue(&authenticationworker.SSHUser, "")
// Replace the default dummy key in the test environment with a valid one.
// This will be added to the ssh authorised keys when the agent starts.
s.setAuthorisedKeys(c, sshtesting.ValidKeyOne.Key+" firstuser@host")
// Record the existing key with its prefix for testing later.
s.existingEnvKey = sshtesting.ValidKeyOne.Key + " Juju:firstuser@host"
// Set up an existing key (which is not in the environment) in the ssh authorised_keys file.
s.existingKeys = []string{sshtesting.ValidKeyTwo.Key + " existinguser@host"}
err := ssh.AddKeys(authenticationworker.SSHUser, s.existingKeys...)
c.Assert(err, jc.ErrorIsNil)
var apiRoot *api.State
apiRoot, s.machine = s.OpenAPIAsNewMachine(c)
c.Assert(apiRoot, gc.NotNil)
s.keyupdaterApi = apiRoot.KeyUpdater()
c.Assert(s.keyupdaterApi, gc.NotNil)
}
func opClientServiceSetCharm(c *gc.C, st *api.State, mst *state.State) (func(), error) {
err := st.Client().ServiceSetCharm("nosuch", "local:quantal/wordpress", false)
if params.IsCodeNotFound(err) {
err = nil
}
return func() {}, err
}
func opClientServiceDeployWithNetworks(c *gc.C, st *api.State, mst *state.State) (func(), error) {
err := st.Client().ServiceDeployWithNetworks("mad:bad/url-1", "x", 1, "", constraints.Value{}, "", nil)
if err.Error() == `charm URL has invalid schema: "mad:bad/url-1"` {
err = nil
}
return func() {}, err
}
func (s *loggerSuite) SetUpTest(c *gc.C) {
s.JujuConnSuite.SetUpTest(c)
var stateAPI *api.State
stateAPI, s.rawMachine = s.OpenAPIAsNewMachine(c)
// Create the logger facade.
s.logger = stateAPI.Logger()
c.Assert(s.logger, gc.NotNil)
}
func resetBlogTitle(c *gc.C, st *api.State) func() {
return func() {
err := st.Client().ServiceSet("wordpress", map[string]string{
"blog-title": "",
})
c.Assert(err, gc.IsNil)
}
}
func (s *keyupdaterSuite) SetUpTest(c *gc.C) {
s.JujuConnSuite.SetUpTest(c)
var stateAPI *api.State
stateAPI, s.rawMachine = s.OpenAPIAsNewMachine(c)
c.Assert(stateAPI, gc.NotNil)
s.keyupdater = stateAPI.KeyUpdater()
c.Assert(s.keyupdater, gc.NotNil)
}
func opClientGetAnnotations(c *gc.C, st *api.State, mst *state.State) (func(), error) {
ann, err := st.Client().GetAnnotations("service-wordpress")
if err != nil {
return func() {}, err
}
c.Assert(ann, gc.DeepEquals, make(map[string]string))
return func() {}, nil
}
func opClientSetEnvironmentConstraints(c *gc.C, st *api.State, mst *state.State) (func(), error) {
nullConstraints := constraints.Value{}
err := st.Client().SetEnvironmentConstraints(nullConstraints)
if err != nil {
return func() {}, err
}
return func() {}, nil
}
func opClientSetServiceConstraints(c *gc.C, st *api.State, mst *state.State) (func(), error) {
nullConstraints := constraints.Value{}
err := st.Client().SetServiceConstraints("wordpress", nullConstraints)
if err != nil {
return func() {}, err
}
return func() {}, nil
}
func opClientStatus(c *gc.C, st *api.State, mst *state.State) (func(), error) {
status, err := st.Client().Status(nil)
if err != nil {
c.Check(status, gc.IsNil)
return func() {}, err
}
c.Assert(status, jc.DeepEquals, scenarioStatus)
return func() {}, nil
}
func opClientServiceSet(c *gc.C, st *api.State, mst *state.State) (func(), error) {
err := st.Client().ServiceSet("wordpress", map[string]string{
"blog-title": "foo",
})
if err != nil {
return func() {}, err
}
return resetBlogTitle(c, st), nil
}
func opClientCharmInfo(c *gc.C, st *api.State, mst *state.State) (func(), error) {
info, err := st.Client().CharmInfo("local:quantal/wordpress-3")
if err != nil {
c.Check(info, gc.IsNil)
return func() {}, err
}
c.Assert(info.URL, gc.Equals, "local:quantal/wordpress-3")
c.Assert(info.Meta.Name, gc.Equals, "wordpress")
c.Assert(info.Revision, gc.Equals, 3)
return func() {}, nil
}
func opClientEnvironmentSet(c *gc.C, st *api.State, mst *state.State) (func(), error) {
args := map[string]interface{}{"some-key": "some-value"}
err := st.Client().EnvironmentSet(args)
if err != nil {
return func() {}, err
}
return func() {
args["some-key"] = nil
st.Client().EnvironmentSet(args)
}, nil
}
func opClientServiceExpose(c *gc.C, st *api.State, mst *state.State) (func(), error) {
err := st.Client().ServiceExpose("wordpress")
if err != nil {
return func() {}, err
}
return func() {
svc, err := mst.Service("wordpress")
c.Assert(err, gc.IsNil)
svc.ClearExposed()
}, nil
}
func opClientSetAnnotations(c *gc.C, st *api.State, mst *state.State) (func(), error) {
pairs := map[string]string{"key1": "value1", "key2": "value2"}
err := st.Client().SetAnnotations("service-wordpress", pairs)
if err != nil {
return func() {}, err
}
return func() {
pairs := map[string]string{"key1": "", "key2": ""}
st.Client().SetAnnotations("service-wordpress", pairs)
}, nil
}
func (a *MachineAgent) setMachineStatus(apiState *api.State, status params.Status, info string) error {
tag := a.Tag().(names.MachineTag)
machine, err := apiState.Machiner().Machine(tag)
if err != nil {
return errors.Trace(err)
}
if err := machine.SetStatus(status, info, nil); err != nil {
return errors.Trace(err)
}
return nil
}
func opClientServiceUpdate(c *gc.C, st *api.State, mst *state.State) (func(), error) {
args := params.ServiceUpdate{
ServiceName: "no-such-charm",
CharmUrl: "cs:quantal/wordpress-42",
ForceCharmUrl: true,
SettingsStrings: map[string]string{"blog-title": "foo"},
SettingsYAML: `"wordpress": {"blog-title": "foo"}`,
}
err := st.Client().ServiceUpdate(args)
if params.IsCodeNotFound(err) {
err = nil
}
return func() {}, err
}
// updateSupportedContainers records in state that a machine can run the specified containers.
// It starts a watcher and when a container of a given type is first added to the machine,
// the watcher is killed, the machine is set up to be able to start containers of the given type,
// and a suitable provisioner is started.
func (a *MachineAgent) updateSupportedContainers(
runner worker.Runner,
st *api.State,
machineTag string,
containers []instance.ContainerType,
agentConfig agent.Config,
) error {
pr := st.Provisioner()
tag, err := names.ParseMachineTag(machineTag)
if err != nil {
return err
}
machine, err := pr.Machine(tag)
if errors.IsNotFound(err) || err == nil && machine.Life() == params.Dead {
return worker.ErrTerminateAgent
}
if err != nil {
return errors.Annotatef(err, "cannot load machine %s from state", tag)
}
if len(containers) == 0 {
if err := machine.SupportsNoContainers(); err != nil {
return errors.Annotatef(err, "clearing supported containers for %s", tag)
}
return nil
}
if err := machine.SetSupportedContainers(containers...); err != nil {
return errors.Annotatef(err, "setting supported containers for %s", tag)
}
initLock, err := hookExecutionLock(agentConfig.DataDir())
if err != nil {
return err
}
// Start the watcher to fire when a container is first requested on the machine.
watcherName := fmt.Sprintf("%s-container-watcher", machine.Id())
handler := provisioner.NewContainerSetupHandler(
runner,
watcherName,
containers,
machine,
pr,
agentConfig,
initLock,
)
a.startWorkerAfterUpgrade(runner, watcherName, func() (worker.Worker, error) {
return worker.NewStringsWorker(handler), nil
})
return nil
}
