// Bootstrap bootstraps the given environment. The supplied constraints are
// used to provision the instance, and are also set within the bootstrapped
// environment.
func Bootstrap(ctx environs.BootstrapContext, environ environs.Environ, args environs.BootstrapParams) error {
cfg := environ.Config()
if secret := cfg.AdminSecret(); secret == "" {
return fmt.Errorf("environment configuration has no admin-secret")
}
if authKeys := ssh.SplitAuthorisedKeys(cfg.AuthorizedKeys()); len(authKeys) == 0 {
// Apparently this can never happen, so it's not tested. But, one day,
// Config will act differently (it's pretty crazy that, AFAICT, the
// authorized-keys are optional config settings... but it's impossible
// to actually *create* a config without them)... and when it does,
// we'll be here to catch this problem early.
return fmt.Errorf("environment configuration has no authorized-keys")
}
if _, hasCACert := cfg.CACert(); !hasCACert {
return fmt.Errorf("environment configuration has no ca-cert")
}
if _, hasCAKey := cfg.CAPrivateKey(); !hasCAKey {
return fmt.Errorf("environment configuration has no ca-private-key")
}
// Write out the bootstrap-init file, and confirm storage is writeable.
if err := environs.VerifyStorage(environ.Storage()); err != nil {
return err
}
logger.Debugf("environment %q supports service/machine networks: %v", environ.Name(), environ.SupportNetworks())
logger.Infof("bootstrapping environment %q", environ.Name())
return environ.Bootstrap(ctx, args)
}
// AddSSHAuthorizedKeys adds a set of keys in
// ssh authorized_keys format (see ssh(8) for details)
// that will be added to ~/.ssh/authorized_keys for the
// configured user (see SetUser).
func (cfg *Config) AddSSHAuthorizedKeys(keyData string) {
akeys, _ := cfg.attrs["ssh_authorized_keys"].([]string)
keys := ssh.SplitAuthorisedKeys(keyData)
for _, key := range keys {
// Ensure the key has a comment prepended with "Juju:" so we
// can distinguish between Juju managed keys and those added
// externally.
jujuKey := ssh.EnsureJujuComment(key)
akeys = append(akeys, jujuKey)
}
cfg.attrs["ssh_authorized_keys"] = akeys
}
func (s *AuthorisedKeysKeysSuite) TestSplitAuthorisedKeys(c *gc.C) {
sshKey := sshtesting.ValidKeyOne.Key
for _, test := range []struct {
keyData string
expected []string
}{
{"", nil},
{sshKey, []string{sshKey}},
{sshKey + "\n", []string{sshKey}},
{sshKey + "\n\n", []string{sshKey}},
{sshKey + "\n#comment\n", []string{sshKey}},
{sshKey + "\n #comment\n", []string{sshKey}},
{sshKey + "\ninvalid\n", []string{sshKey, "invalid"}},
} {
actual := ssh.SplitAuthorisedKeys(test.keyData)
c.Assert(actual, gc.DeepEquals, test.expected)
}
}
// AuthorisedKeys reports the authorised ssh keys for the specified machines.
// The current implementation relies on global authorised keys being stored in the environment config.
// This will change as new user management and authorisation functionality is added.
func (api *KeyUpdaterAPI) AuthorisedKeys(arg params.Entities) (params.StringsResults, error) {
if len(arg.Entities) == 0 {
return params.StringsResults{}, nil
}
results := make([]params.StringsResult, len(arg.Entities))
// For now, authorised keys are global, common to all machines.
var keys []string
config, configErr := api.state.EnvironConfig()
if configErr == nil {
keys = ssh.SplitAuthorisedKeys(config.AuthorizedKeys())
}
canRead, err := api.getCanRead()
if err != nil {
return params.StringsResults{}, err
}
for i, entity := range arg.Entities {
// 1. Check permissions
if !canRead(entity.Tag) {
results[i].Error = common.ServerError(common.ErrPerm)
continue
}
// 2. Check entity exists
if _, err := api.state.FindEntity(entity.Tag); err != nil {
if errors.IsNotFound(err) {
results[i].Error = common.ServerError(common.ErrPerm)
} else {
results[i].Error = common.ServerError(err)
}
continue
}
// 3. Get keys
var err error
if configErr == nil {
results[i].Result = keys
} else {
err = configErr
}
results[i].Error = common.ServerError(err)
}
return params.StringsResults{Results: results}, nil
}
