func destroyEnvironment(st *state.State, environTag names.EnvironTag, destroyHostedEnvirons bool) error {
var err error
if environTag != st.EnvironTag() {
if st, err = st.ForEnviron(environTag); err != nil {
return errors.Trace(err)
}
defer st.Close()
}
if destroyHostedEnvirons {
envs, err := st.AllEnvironments()
if err != nil {
return errors.Trace(err)
}
for _, env := range envs {
envSt, err := st.ForEnviron(env.EnvironTag())
defer envSt.Close()
if err != nil {
return errors.Trace(err)
}
check := NewBlockChecker(envSt)
if err = check.DestroyAllowed(); err != nil {
return errors.Trace(err)
}
}
} else {
check := NewBlockChecker(st)
if err = check.DestroyAllowed(); err != nil {
return errors.Trace(err)
}
}
env, err := st.Environment()
if err != nil {
return errors.Trace(err)
}
if destroyHostedEnvirons {
if err := env.DestroyIncludingHosted(); err != nil {
return err
}
} else {
if err = env.Destroy(); err != nil {
return errors.Trace(err)
}
}
err = sendMetrics(st)
if err != nil {
logger.Warningf("failed to send leftover metrics: %v", err)
}
// Return to the caller. If it's the CLI, it will finish up by calling the
// provider's Destroy method, which will destroy the state servers, any
// straggler instances, and other provider-specific resources. Once all
// resources are torn down, the Undertaker worker handles the removal of
// the environment.
return nil
}
// DestroyEnvironment destroys all services and non-manager machine
// instances in the specified environment. This function assumes that all
// necessary authentication checks have been done.
func DestroyEnvironment(st *state.State, environTag names.EnvironTag) error {
var err error
if environTag != st.EnvironTag() {
if st, err = st.ForEnviron(environTag); err != nil {
return errors.Trace(err)
}
defer st.Close()
}
check := NewBlockChecker(st)
if err = check.DestroyAllowed(); err != nil {
return errors.Trace(err)
}
env, err := st.Environment()
if err != nil {
return errors.Trace(err)
}
if err = env.Destroy(); err != nil {
return errors.Trace(err)
}
machines, err := st.AllMachines()
if err != nil {
return errors.Trace(err)
}
err = sendMetrics(st)
if err != nil {
logger.Warningf("failed to send leftover metrics: %v", err)
}
// We must destroy instances server-side to support JES (Juju Environment
// Server), as there's no CLI to fall back on. In that case, we only ever
// destroy non-state machines; we leave destroying state servers in non-
// hosted environments to the CLI, as otherwise the API server may get cut
// off.
if err := destroyNonManagerMachines(st, machines); err != nil {
return errors.Trace(err)
}
// If this is not the state server environment, remove all documents from
// state associated with the environment.
if env.EnvironTag() != env.ServerTag() {
return errors.Trace(st.RemoveAllEnvironDocs())
}
// Return to the caller. If it's the CLI, it will finish up
// by calling the provider's Destroy method, which will
// destroy the state servers, any straggler instances, and
// other provider-specific resources.
return nil
}
func (c *dumpLogsCommand) dumpLogsForEnv(ctx *cmd.Context, st0 *state.State, tag names.EnvironTag) error {
st, err := st0.ForEnviron(tag)
if err != nil {
return errors.Annotate(err, "failed open environment")
}
defer st.Close()
logName := ctx.AbsPath(filepath.Join(c.outDir, fmt.Sprintf("%s.log", tag.Id())))
ctx.Infof("writing to %s", logName)
file, err := os.Create(logName)
if err != nil {
return errors.Annotate(err, "failed to open output file")
}
defer file.Close()
writer := bufio.NewWriter(file)
defer writer.Flush()
tailer := state.NewLogTailer(st, &state.LogTailerParams{NoTail: true})
logs := tailer.Logs()
for {
rec, ok := <-logs
if !ok {
break
}
writer.WriteString(c.format(
rec.Time,
rec.Level,
rec.Entity,
rec.Module,
rec.Message,
) + "\n")
}
return nil
}