func rebootstrap(cfg *config.Config, ctx *cmd.Context, cons constraints.Value) (environs.Environ, error) {
progress("re-bootstrapping environment")
// Turn on safe mode so that the newly bootstrapped instance
// will not destroy all the instances it does not know about.
cfg, err := cfg.Apply(map[string]interface{}{
"provisioner-safe-mode": true,
})
if err != nil {
return nil, errors.Annotate(err, "cannot enable provisioner-safe-mode")
}
env, err := environs.New(cfg)
if err != nil {
return nil, err
}
instanceIds, err := env.StateServerInstances()
switch errors.Cause(err) {
case nil, environs.ErrNoInstances:
// Some providers will return a nil error even
// if there are no live state server instances.
break
case environs.ErrNotBootstrapped:
return nil, errors.Trace(err)
default:
return nil, errors.Annotate(err, "cannot determine state server instances")
}
if len(instanceIds) > 0 {
instances, err := env.Instances(instanceIds)
switch errors.Cause(err) {
case nil, environs.ErrPartialInstances:
return nil, fmt.Errorf("old bootstrap instances %q still seems to exist; will not replace", instances)
case environs.ErrNoInstances:
// No state server instances, so keep running.
break
default:
return nil, errors.Annotate(err, "cannot detect whether old instance is still running")
}
}
// Remove the storage so that we can bootstrap without the provider complaining.
if env, ok := env.(environs.EnvironStorage); ok {
if err := env.Storage().Remove(common.StateFile); err != nil {
return nil, errors.Annotate(err, fmt.Sprintf("cannot remove %q from storage", common.StateFile))
}
}
// TODO If we fail beyond here, then we won't have a state file and
// we won't be able to re-run this script because it fails without it.
// We could either try to recreate the file if we fail (which is itself
// error-prone) or we could provide a --no-check flag to make
// it go ahead anyway without the check.
args := bootstrap.BootstrapParams{Constraints: cons}
if err := bootstrap.Bootstrap(envcmd.BootstrapContextNoVerify(ctx), env, args); err != nil {
return nil, errors.Annotate(err, "cannot bootstrap new instance")
}
return env, nil
}
func (c *imageMetadataCommandBase) prepare(context *cmd.Context, store configstore.Storage) (environs.Environ, error) {
cfg, err := c.Config(store, nil)
if err != nil {
return nil, errors.Annotate(err, "could not get config from store")
}
// We are preparing an environment to access parameters needed to access
// image metadata. We don't need, nor want, credential verification.
// In most cases, credentials will not be available.
ctx := envcmd.BootstrapContextNoVerify(context)
return environs.Prepare(cfg, ctx, store)
}
func (s *ToolsMetadataSuite) SetUpTest(c *gc.C) {
s.FakeJujuHomeSuite.SetUpTest(c)
s.AddCleanup(func(*gc.C) {
dummy.Reset()
loggo.ResetLoggers()
})
env, err := environs.PrepareFromName(
"erewhemos", envcmd.BootstrapContextNoVerify(coretesting.Context(c)), configstore.NewMem())
c.Assert(err, jc.ErrorIsNil)
s.env = env
loggo.GetLogger("").SetLogLevel(loggo.INFO)
// Switch the default tools location.
s.publicStorageDir = c.MkDir()
s.PatchValue(&tools.DefaultBaseURL, s.publicStorageDir)
}
func (s *EnvironmentCommandSuite) TestBootstrapContextNoVerify(c *gc.C) {
ctx := envcmd.BootstrapContextNoVerify(&cmd.Context{})
c.Assert(ctx.ShouldVerifyCredentials(), jc.IsFalse)
}