func (s *AuthKeysSuite) TestConcatAuthKeys(c *gc.C) {
for _, test := range []struct{ a, b, result string }{
{"a", "", "a"},
{"", "b", "b"},
{"a", "b", "a\nb"},
{"a\n", "b", "a\nb"},
} {
c.Check(config.ConcatAuthKeys(test.a, test.b), gc.Equals, test.result)
}
}
// GenerateSystemSSHKey creates a new key for the system identity. The
// authorized_keys in the environment config is updated to include the public
// key for the generated key.
func GenerateSystemSSHKey(env environs.Environ) (privateKey string, err error) {
logger.Debugf("generate a system ssh key")
// Create a new system ssh key and add that to the authorized keys.
privateKey, publicKey, err := ssh.GenerateKey(config.JujuSystemKey)
if err != nil {
return "", fmt.Errorf("failed to create system key: %v", err)
}
authorized_keys := config.ConcatAuthKeys(env.Config().AuthorizedKeys(), publicKey)
newConfig, err := env.Config().Apply(map[string]interface{}{
config.AuthKeysConfig: authorized_keys,
})
if err != nil {
return "", fmt.Errorf("failed to create new config: %v", err)
}
if err = env.SetConfig(newConfig); err != nil {
return "", fmt.Errorf("failed to set new config: %v", err)
}
return privateKey, nil
}