// NewConn returns a new Conn that uses the
// given environment. The environment must have already
// been bootstrapped.
func NewConn(environ environs.Environ) (*Conn, error) {
info, _, err := environ.StateInfo()
if err != nil {
return nil, err
}
password := environ.Config().AdminSecret()
if password == "" {
return nil, fmt.Errorf("cannot connect without admin-secret")
}
err = environs.CheckEnvironment(environ)
if err != nil {
return nil, err
}
info.Password = password
opts := state.DefaultDialOpts()
st, err := state.Open(info, opts, environs.NewStatePolicy())
if errors.IsUnauthorized(err) {
logger.Infof("authorization error while connecting to state server; retrying")
// We can't connect with the administrator password,;
// perhaps this was the first connection and the
// password has not been changed yet.
info.Password = utils.UserPasswordHash(password, utils.CompatSalt)
// We try for a while because we might succeed in
// connecting to mongo before the state has been
// initialized and the initial password set.
for a := redialStrategy.Start(); a.Next(); {
st, err = state.Open(info, opts, environs.NewStatePolicy())
if !errors.IsUnauthorized(err) {
break
}
}
if err != nil {
return nil, err
}
if err := st.SetAdminMongoPassword(password); err != nil {
return nil, err
}
} else if err != nil {
return nil, err
}
conn := &Conn{
Environ: environ,
State: st,
}
if err := conn.updateSecrets(); err != nil {
conn.Close()
return nil, fmt.Errorf("unable to push secrets: %v", err)
}
return conn, nil
}
func (s *checkEnvironmentSuite) TestCheckEnvironment(c *gc.C) {
defer testing.MakeFakeHome(c, checkEnv, "existing").Restore()
ctx := testing.Context(c)
environ, err := environs.PrepareFromName("test", ctx, configstore.NewMem())
c.Assert(err, gc.IsNil)
// VerifyStorage is sufficient for our tests and much simpler
// than Bootstrap which calls it.
stor := environ.Storage()
err = environs.VerifyStorage(stor)
c.Assert(err, gc.IsNil)
err = environs.CheckEnvironment(environ)
c.Assert(err, gc.IsNil)
}
func (s *checkEnvironmentSuite) TestCheckEnvironmentBadContent(c *gc.C) {
defer testing.MakeFakeHome(c, checkEnv, "existing").Restore()
ctx := testing.Context(c)
environ, err := environs.PrepareFromName("test", ctx, configstore.NewMem())
c.Assert(err, gc.IsNil)
// We mock a bad (eg. from a Python-juju environment) bootstrap-verify.
stor := environ.Storage()
content := "bad verification content"
reader := strings.NewReader(content)
err = stor.Put(environs.VerificationFilename, reader, int64(len(content)))
c.Assert(err, gc.IsNil)
// When the bootstrap-verify file contains unexpected content,
// we get an InvalidEnvironmentError.
err = environs.CheckEnvironment(environ)
c.Assert(err, gc.Equals, environs.InvalidEnvironmentError)
}
func (s *checkEnvironmentSuite) TestCheckEnvironmentGetFails(c *gc.C) {
defer testing.MakeFakeHome(c, checkEnv, "existing").Restore()
ctx := testing.Context(c)
environ, err := environs.PrepareFromName("test", ctx, configstore.NewMem())
c.Assert(err, gc.IsNil)
// VerifyStorage is sufficient for our tests and much simpler
// than Bootstrap which calls it.
stor := environ.Storage()
err = environs.VerifyStorage(stor)
c.Assert(err, gc.IsNil)
// When fetching the verification file from storage fails,
// we get an InvalidEnvironmentError.
someError := errors.Unauthorizedf("you shall not pass")
dummy.Poison(stor, environs.VerificationFilename, someError)
err = environs.CheckEnvironment(environ)
c.Assert(err, gc.Equals, someError)
}
func (s *checkEnvironmentSuite) TestCheckEnvironmentFileNotFound(c *gc.C) {
defer testing.MakeFakeHome(c, checkEnv, "existing").Restore()
ctx := testing.Context(c)
environ, err := environs.PrepareFromName("test", ctx, configstore.NewMem())
c.Assert(err, gc.IsNil)
// VerifyStorage is sufficient for our tests and much simpler
// than Bootstrap which calls it.
stor := environ.Storage()
err = environs.VerifyStorage(stor)
c.Assert(err, gc.IsNil)
// When the bootstrap-verify file does not exist, it still believes
// the environment is a juju-core one because earlier versions
// did not create that file.
err = stor.Remove(environs.VerificationFilename)
c.Assert(err, gc.IsNil)
err = environs.CheckEnvironment(environ)
c.Assert(err, gc.IsNil)
}