func newExecutor(c *gc.C, st *operation.State) (operation.Executor, string) {
path := filepath.Join(c.MkDir(), "state")
err := operation.NewStateFile(path).Write(st)
c.Assert(err, jc.ErrorIsNil)
executor, err := operation.NewExecutor(path, failGetInstallCharm, failAcquireLock)
c.Assert(err, jc.ErrorIsNil)
return executor, path
}
func (s *ExecutorSuite) initLockTest(c *gc.C, lockFunc func() (mutex.Releaser, error)) operation.Executor {
initialState := justInstalledState()
statePath := filepath.Join(c.MkDir(), "state")
err := operation.NewStateFile(statePath).Write(&initialState)
c.Assert(err, jc.ErrorIsNil)
executor, err := operation.NewExecutor(statePath, failGetInstallCharm, lockFunc)
c.Assert(err, jc.ErrorIsNil)
return executor
}
func (s *NewExecutorSuite) TestNewExecutorNoFile(c *gc.C) {
charmURL := corecharm.MustParseURL("cs:quantal/nyancat-323")
getInstallCharm := func() (*corecharm.URL, error) {
return charmURL, nil
}
executor, err := operation.NewExecutor(s.path("missing"), getInstallCharm, failAcquireLock)
c.Assert(err, jc.ErrorIsNil)
c.Assert(executor.State(), gc.DeepEquals, operation.State{
Kind: operation.Install,
Step: operation.Queued,
CharmURL: charmURL,
})
ft.Removed{"missing"}.Check(c, s.basePath)
}
func (s *NewExecutorSuite) TestNewExecutorValidFile(c *gc.C) {
// note: this content matches valid persistent state as of 1.21; we expect
// that "hook" will have to become "last-hook" to enable action execution
// during hook error states. If you do this, please leave at least one test
// with this form of the yaml in place.
ft.File{"existing", `
started: true
op: continue
opstep: pending
`[1:], 0666}.Create(c, s.basePath)
executor, err := operation.NewExecutor(s.path("existing"), failGetInstallCharm, failAcquireLock)
c.Assert(err, jc.ErrorIsNil)
c.Assert(executor.State(), gc.DeepEquals, operation.State{
Kind: operation.Continue,
Step: operation.Pending,
Started: true,
})
}
func (s *NewExecutorSuite) TestNewExecutorInvalidFile(c *gc.C) {
ft.File{"existing", "", 0666}.Create(c, s.basePath)
executor, err := operation.NewExecutor(s.path("existing"), failGetInstallCharm, failAcquireLock)
c.Assert(executor, gc.IsNil)
c.Assert(err, gc.ErrorMatches, `cannot read ".*": invalid operation state: .*`)
}
func (s *NewExecutorSuite) TestNewExecutorNoFileNoCharm(c *gc.C) {
executor, err := operation.NewExecutor(s.path("missing"), failGetInstallCharm, failAcquireLock)
c.Assert(executor, gc.IsNil)
c.Assert(err, gc.ErrorMatches, "lol!")
}
func (u *Uniter) init(unitTag names.UnitTag) (err error) {
u.unit, err = u.st.Unit(unitTag)
if err != nil {
return err
}
if u.unit.Life() == params.Dead {
// If we started up already dead, we should not progress further. If we
// become Dead immediately after starting up, we may well complete any
// operations in progress before detecting it; but that race is fundamental
// and inescapable, whereas this one is not.
return worker.ErrTerminateAgent
}
if err = u.setupLocks(); err != nil {
return err
}
if err := jujuc.EnsureSymlinks(u.paths.ToolsDir); err != nil {
return err
}
if err := os.MkdirAll(u.paths.State.RelationsDir, 0755); err != nil {
return errors.Trace(err)
}
relations, err := newRelations(u.st, unitTag, u.paths, u.tomb.Dying())
if err != nil {
return errors.Annotatef(err, "cannot create relations")
}
u.relations = relations
storageAttachments, err := storage.NewAttachments(
u.st, unitTag, u.paths.State.StorageDir, u.tomb.Dying(),
)
if err != nil {
return errors.Annotatef(err, "cannot create storage hook source")
}
u.storage = storageAttachments
u.addCleanup(storageAttachments.Stop)
deployer, err := charm.NewDeployer(
u.paths.State.CharmDir,
u.paths.State.DeployerDir,
charm.NewBundlesDir(u.paths.State.BundlesDir),
)
if err != nil {
return errors.Annotatef(err, "cannot create deployer")
}
u.deployer = &deployerProxy{deployer}
runnerFactory, err := runner.NewFactory(
u.st, unitTag, u.leadershipTracker, u.relations.GetInfo, u.storage, u.paths,
)
if err != nil {
return err
}
u.operationFactory = operation.NewFactory(
u.deployer,
runnerFactory,
&operationCallbacks{u},
u.storage,
u.tomb.Dying(),
)
operationExecutor, err := operation.NewExecutor(
u.paths.State.OperationsFile, u.getServiceCharmURL, u.acquireExecutionLock,
)
if err != nil {
return err
}
u.operationExecutor = operationExecutor
logger.Debugf("starting juju-run listener on unix:%s", u.paths.Runtime.JujuRunSocket)
u.runListener, err = NewRunListener(u, u.paths.Runtime.JujuRunSocket)
if err != nil {
return err
}
u.addCleanup(func() error {
// TODO(fwereade): RunListener returns no error on Close. This seems wrong.
u.runListener.Close()
return nil
})
// The socket needs to have permissions 777 in order for other users to use it.
if version.Current.OS != version.Windows {
return os.Chmod(u.paths.Runtime.JujuRunSocket, 0777)
}
return nil
}
func newOperationExecutor(u *Uniter) (operation.Executor, error) {
return operation.NewExecutor(
u.paths.State.OperationsFile, u.getServiceCharmURL, u.acquireExecutionLock,
)
}