Golang APIEndpoint.Addresses方法代码示例

func (*diskStoreSuite) TestWriteSmallerFile(c *gc.C) {
	dir := c.MkDir()
	store, err := configstore.NewDisk(dir)
	c.Assert(err, gc.IsNil)
	info := store.CreateInfo("someenv")
	endpoint := configstore.APIEndpoint{
		Addresses:   []string{"this", "is", "never", "validated", "here"},
		EnvironUUID: "90168e4c-2f10-4e9c-83c2-feedfacee5a9",
	}
	info.SetAPIEndpoint(endpoint)
	err = info.Write()
	c.Assert(err, gc.IsNil)

	newInfo, err := store.ReadInfo("someenv")
	c.Assert(err, gc.IsNil)
	// Now change the number of addresses to be shorter.
	endpoint.Addresses = []string{"just one"}
	newInfo.SetAPIEndpoint(endpoint)
	err = newInfo.Write()
	c.Assert(err, gc.IsNil)

	// We should be able to read in in fine.
	yaInfo, err := store.ReadInfo("someenv")
	c.Assert(err, gc.IsNil)
	c.Assert(yaInfo.APIEndpoint().Addresses, gc.DeepEquals, []string{"just one"})
}

func (*diskStoreSuite) TestWriteSmallerFile(c *gc.C) {
	dir := c.MkDir()
	store, err := configstore.NewDisk(dir)
	c.Assert(err, jc.ErrorIsNil)
	info := store.CreateInfo("somemodel")
	endpoint := configstore.APIEndpoint{
		Addresses: []string{"this", "is", "never", "validated", "here"},
		Hostnames: []string{"neither", "is", "this"},
		ModelUUID: testing.ModelTag.Id(),
	}
	info.SetAPIEndpoint(endpoint)
	err = info.Write()
	c.Assert(err, jc.ErrorIsNil)

	newInfo, err := store.ReadInfo("somemodel")
	c.Assert(err, jc.ErrorIsNil)
	// Now change the number of addresses to be shorter.
	endpoint.Addresses = []string{"just one"}
	endpoint.Hostnames = []string{"just this"}
	newInfo.SetAPIEndpoint(endpoint)
	err = newInfo.Write()
	c.Assert(err, jc.ErrorIsNil)

	// We should be able to read in in fine.
	yaInfo, err := store.ReadInfo("somemodel")
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(yaInfo.APIEndpoint().Addresses, gc.DeepEquals, []string{"just one"})
	c.Assert(yaInfo.APIEndpoint().Hostnames, gc.DeepEquals, []string{"just this"})
}

// cacheAPIInfo updates the local environment settings (.jenv file)
// with the provided apiInfo, assuming we've just successfully
// connected to the API server.
func cacheAPIInfo(st apiState, info configstore.EnvironInfo, apiInfo *api.Info) (err error) {
	defer errors.DeferredAnnotatef(&err, "failed to cache API credentials")
	var environUUID string
	if names.IsValidEnvironment(apiInfo.EnvironTag.Id()) {
		environUUID = apiInfo.EnvironTag.Id()
	} else {
		// For backwards-compatibility, we have to allow connections
		// with an empty UUID. Login will work for the same reasons.
		logger.Warningf("ignoring invalid cached API endpoint environment UUID %v", apiInfo.EnvironTag.Id())
	}
	hostPorts, err := network.ParseHostPorts(apiInfo.Addrs...)
	if err != nil {
		return errors.Annotatef(err, "invalid API addresses %v", apiInfo.Addrs)
	}
	addrConnectedTo, err := network.ParseHostPorts(st.Addr())
	if err != nil {
		// Should never happen, since we've just connected with it.
		return errors.Annotatef(err, "invalid API address %q", st.Addr())
	}
	addrs, hostnames, addrsChanged := PrepareEndpointsForCaching(
		info, [][]network.HostPort{hostPorts}, addrConnectedTo[0],
	)

	endpoint := configstore.APIEndpoint{
		CACert:      string(apiInfo.CACert),
		EnvironUUID: environUUID,
	}
	if addrsChanged {
		endpoint.Addresses = addrs
		endpoint.Hostnames = hostnames
	}
	info.SetAPIEndpoint(endpoint)
	tag, ok := apiInfo.Tag.(names.UserTag)
	if !ok {
		return errors.Errorf("apiInfo.Tag was of type %T, expecting names.UserTag", apiInfo.Tag)
	}
	info.SetAPICredentials(configstore.APICredentials{
		// This looks questionable. We have a tag, say "user-admin", but then only
		// the Id portion of the tag is recorded, "admin", so this is really a
		// username, not a tag, and cannot be reconstructed accurately.
		User:     tag.Id(),
		Password: apiInfo.Password,
	})
	return info.Write()
}