func (s *serviceSuite) TestIsServiceInstalledWhenNotInstalled(c *gc.C) {
mongo.PatchService(s.PatchValue, svctesting.NewFakeServiceData())
isInstalled, err := mongo.IsServiceInstalled("some-namespace")
c.Assert(err, jc.ErrorIsNil)
c.Assert(isInstalled, jc.IsFalse)
}
func (s *serviceSuite) TestIsServiceInstalledWhenInstalled(c *gc.C) {
svcName := mongo.ServiceName
svcData := svctesting.NewFakeServiceData(svcName)
mongo.PatchService(s.PatchValue, svcData)
isInstalled, err := mongo.IsServiceInstalled()
c.Assert(err, jc.ErrorIsNil)
c.Assert(isInstalled, jc.IsTrue)
}
// ensureMongoServer ensures that mongo is installed and running,
// and ready for opening a state connection.
func (a *MachineAgent) ensureMongoServer(agentConfig agent.Config) (err error) {
a.mongoInitMutex.Lock()
defer a.mongoInitMutex.Unlock()
if a.mongoInitialized {
logger.Debugf("mongo is already initialized")
return nil
}
defer func() {
if err == nil {
a.mongoInitialized = true
}
}()
mongoInstalled, err := mongo.IsServiceInstalled()
if err != nil {
return errors.Annotate(err, "error while checking if mongodb service is installed")
}
if !mongoInstalled {
// EnsureMongoServer installs/upgrades the init config as necessary.
ensureServerParams, err := cmdutil.NewEnsureServerParams(agentConfig)
if err != nil {
return err
}
if err := cmdutil.EnsureMongoServer(ensureServerParams); err != nil {
return err
}
}
logger.Debugf("mongodb service is installed")
// Mongo is installed, record the version.
err = a.ChangeConfig(func(config agent.ConfigSetter) error {
config.SetMongoVersion(mongo.InstalledVersion())
return nil
})
if err != nil {
return errors.Annotate(err, "cannot set mongo version")
}
return nil
}