func (s *TargetPrecheckSuite) TestIsUpgradingError(c *gc.C) {
backend := &fakeBackend{
isUpgradingErr: errors.New("boom"),
}
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err, gc.ErrorMatches, "checking for upgrades: boom")
}
func (s *TargetPrecheckSuite) TestIsUpgrading(c *gc.C) {
backend := &fakeBackend{
isUpgrading: true,
}
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err, gc.ErrorMatches, "upgrade in progress")
}
func (s *TargetPrecheckSuite) TestVersionLessThanSource(c *gc.C) {
backend := newFakeBackend()
s.modelInfo.AgentVersion = version.MustParse("1.2.4")
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err.Error(), gc.Equals,
`model has higher version than target controller (1.2.4 > 1.2.3)`)
}
func (s *TargetPrecheckSuite) TestUUIDAlreadyExists(c *gc.C) {
backend := newFakeBackend()
backend.models = []migration.PrecheckModel{
&fakeModel{uuid: modelUUID},
}
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err.Error(), gc.Equals, "model with same UUID already exists (model-uuid)")
}
func (s *TargetPrecheckSuite) TestModelNameOverlapOkForDifferentOwner(c *gc.C) {
backend := newFakeBackend()
backend.models = []migration.PrecheckModel{
&fakeModel{name: modelName, owner: names.NewUserTag("someone.else")},
}
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err, jc.ErrorIsNil)
}
func (s *TargetPrecheckSuite) TestUUIDAlreadyExistsButImporting(c *gc.C) {
backend := newFakeBackend()
backend.models = []migration.PrecheckModel{
&fakeModel{
uuid: modelUUID,
migrationMode: state.MigrationModeImporting,
},
}
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err, jc.ErrorIsNil)
}
func (s *TargetPrecheckSuite) TestModelNameAlreadyInUse(c *gc.C) {
backend := newFakeBackend()
backend.models = []migration.PrecheckModel{
&fakeModel{
name: modelName,
owner: modelOwner,
},
}
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err, gc.ErrorMatches, "model named \"model-name\" already exists")
}
// Prechecks ensure that the target controller is ready to accept a
// model migration.
func (api *API) Prechecks(model params.MigrationModelInfo) error {
ownerTag, err := names.ParseUserTag(model.OwnerTag)
if err != nil {
return errors.Trace(err)
}
return migration.TargetPrecheck(
migration.PrecheckShim(api.state),
coremigration.ModelInfo{
UUID: model.UUID,
Name: model.Name,
Owner: ownerTag,
AgentVersion: model.AgentVersion,
},
)
}
func (s *TargetPrecheckSuite) TestDownMachineAgent(c *gc.C) {
backend := newBackendWithDownMachineAgent()
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err.Error(), gc.Equals, "machine 1 agent not functioning at this time (down)")
}
func (s *TargetPrecheckSuite) TestProvisioningMachine(c *gc.C) {
backend := newBackendWithProvisioningMachine()
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err.Error(), gc.Equals, "machine 0 not running (allocating)")
}
func (s *TargetPrecheckSuite) TestDyingMachine(c *gc.C) {
backend := newBackendWithDyingMachine()
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err, gc.ErrorMatches, "machine 0 is dying")
}
func (s *TargetPrecheckSuite) TestIsMigrationActive(c *gc.C) {
backend := &fakeBackend{migrationActive: true}
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err, gc.ErrorMatches, "model is being migrated out of target controller")
}
func (s *TargetPrecheckSuite) TestIsMigrationActiveError(c *gc.C) {
backend := &fakeBackend{migrationActiveErr: errors.New("boom")}
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err, gc.ErrorMatches, "checking for active migration: boom")
}
func (s *TargetPrecheckSuite) TestDying(c *gc.C) {
backend := newFakeBackend()
backend.model.life = state.Dying
err := migration.TargetPrecheck(backend, s.modelInfo)
c.Assert(err, gc.ErrorMatches, "model is dying")
}
func (s *TargetPrecheckSuite) TestSuccess(c *gc.C) {
err := migration.TargetPrecheck(newHappyBackend(), s.modelInfo)
c.Assert(err, jc.ErrorIsNil)
}
func (s *TargetPrecheckSuite) runPrecheck(backend migration.PrecheckBackend) error {
return migration.TargetPrecheck(backend, s.modelInfo)
}