// UnbindUnit makes the unbind between the service instance and an unit.
func (si *ServiceInstance) UnbindUnit(app bind.App, unit bind.Unit) error {
endpoint, err := si.Service().getClient("production")
if err != nil {
return err
}
conn, err := db.Conn()
if err != nil {
return err
}
defer conn.Close()
updateOp := bson.M{"$pull": bson.M{"units": unit.GetID()}}
err = conn.ServiceInstances().Update(bson.M{"name": si.Name, "service_name": si.ServiceName, "units": unit.GetID()}, updateOp)
if err != nil {
if err == mgo.ErrNotFound {
return ErrUnitNotBound
}
return err
}
err = endpoint.UnbindUnit(si, app, unit)
if err != nil {
rollbackErr := si.update(bson.M{"$addToSet": bson.M{"units": unit.GetID()}})
if rollbackErr != nil {
log.Errorf("[unbind unit] could not add bound unit back to db after failure: %s", rollbackErr)
}
return err
}
return nil
}
func (c *Client) BindUnit(instance *ServiceInstance, app bind.App, unit bind.Unit) error {
log.Debugf("Calling bind of instance %q and %q unit at %q API",
instance.Name, unit.GetIp(), instance.ServiceName)
var resp *http.Response
params := map[string][]string{
"app-host": {app.GetIp()},
"unit-host": {unit.GetIp()},
}
resp, err := c.issueRequest("/resources/"+instance.GetIdentifier()+"/bind", "POST", params)
if err != nil {
if m, _ := regexp.MatchString("", err.Error()); m {
return fmt.Errorf("%s api is down.", instance.Name)
}
return err
}
if resp.StatusCode == http.StatusPreconditionFailed {
return &errors.HTTP{Code: resp.StatusCode, Message: "You cannot bind any app to this service instance because it is not ready yet."}
}
if resp.StatusCode > 299 {
msg := fmt.Sprintf("Failed to bind the instance %q to the unit %q: %s", instance.Name, unit.GetIp(), c.buildErrorMessage(err, resp))
log.Error(msg)
return &errors.HTTP{Code: http.StatusInternalServerError, Message: msg}
}
return nil
}
func (c *Client) BindUnit(instance *ServiceInstance, app bind.App, unit bind.Unit) error {
log.Debugf("Calling bind of instance %q and %q unit at %q API",
instance.Name, unit.GetIp(), instance.ServiceName)
var resp *http.Response
params := map[string][]string{
"app-host": {app.GetIp()},
"unit-host": {unit.GetIp()},
}
resp, err := c.issueRequest("/resources/"+instance.GetIdentifier()+"/bind", "POST", params)
if err != nil {
return log.WrapError(errors.Wrapf(err, `Failed to bind the instance "%s/%s" to the unit %q`, instance.ServiceName, instance.Name, unit.GetIp()))
}
defer resp.Body.Close()
switch resp.StatusCode {
case http.StatusPreconditionFailed:
return ErrInstanceNotReady
case http.StatusNotFound:
return ErrInstanceNotFoundInAPI
}
if resp.StatusCode > 299 {
err = errors.Wrapf(c.buildErrorMessage(err, resp), `Failed to bind the instance "%s/%s" to the unit %q`, instance.ServiceName, instance.Name, unit.GetIp())
return log.WrapError(err)
}
return nil
}
func (c *Client) BindUnit(instance *ServiceInstance, app bind.App, unit bind.Unit) error {
log.Debugf("Calling bind of instance %q and %q unit at %q API",
instance.Name, unit.GetIp(), instance.ServiceName)
var resp *http.Response
params := map[string][]string{
"app-host": {app.GetIp()},
"unit-host": {unit.GetIp()},
}
resp, err := c.issueRequest("/resources/"+instance.GetIdentifier()+"/bind", "POST", params)
if err != nil {
if m, _ := regexp.MatchString("", err.Error()); m {
return fmt.Errorf("%s api is down.", instance.Name)
}
return err
}
switch resp.StatusCode {
case http.StatusPreconditionFailed:
return ErrInstanceNotReady
case http.StatusNotFound:
return ErrInstanceNotFoundInAPI
}
if resp.StatusCode > 299 {
msg := fmt.Sprintf(`Failed to bind the instance "%s/%s" to the unit %q: %s`, instance.ServiceName, instance.Name, unit.GetIp(), c.buildErrorMessage(err, resp))
log.Error(msg)
return errors.New(msg)
}
return nil
}
// UnbindUnit makes the unbind between the service instance and an unit.
func (si *ServiceInstance) UnbindUnit(app bind.App, unit bind.Unit) error {
endpoint, err := si.Service().getClient("production")
if err != nil {
return err
}
err = si.reload()
if err != nil {
return err
}
var found bool
for _, unitName := range si.Units {
if unitName == unit.GetName() {
found = true
break
}
}
if !found {
return ErrUnitNotBound
}
err = endpoint.UnbindUnit(si, app, unit)
if err != nil {
return err
}
return si.update(bson.M{"$pull": bson.M{"units": unit.GetName()}})
}
func (c *Client) Unbind(instance *ServiceInstance, unit bind.Unit) error {
log.Debug("Attempting to call unbind of service instance " + instance.Name + " and unit " + unit.GetIp() + " at " + instance.ServiceName + " api")
var resp *http.Response
url := "/resources/" + instance.Name + "/hostname/" + unit.GetIp()
resp, err := c.issueRequest(url, "DELETE", nil)
if err == nil && resp.StatusCode > 299 {
msg := fmt.Sprintf("Failed to unbind (%q): %s", url, c.buildErrorMessage(err, resp))
log.Error(msg)
return &errors.HTTP{Code: http.StatusInternalServerError, Message: msg}
}
return err
}
func (c *Client) UnbindUnit(instance *ServiceInstance, app bind.App, unit bind.Unit) error {
log.Debugf("Calling unbind of service instance %q and unit %q at %q", instance.Name, unit.GetIp(), instance.ServiceName)
var resp *http.Response
url := "/resources/" + instance.GetIdentifier() + "/bind"
params := map[string][]string{
"app-host": {app.GetIp()},
"unit-host": {unit.GetIp()},
}
resp, err := c.issueRequest(url, "DELETE", params)
if err == nil && resp.StatusCode > 299 {
msg := fmt.Sprintf("Failed to unbind (%q): %s", url, c.buildErrorMessage(err, resp))
log.Error(msg)
return &errors.HTTP{Code: http.StatusInternalServerError, Message: msg}
}
return err
}
// BindUnit makes the bind between the binder and an unit.
func (si *ServiceInstance) BindUnit(app bind.App, unit bind.Unit) error {
endpoint, err := si.Service().getClient("production")
if err != nil {
return err
}
err = si.reload()
if err != nil {
return err
}
for _, unitName := range si.Units {
if unitName == unit.GetName() {
return ErrUnitAlreadyBound
}
}
err = endpoint.BindUnit(si, app, unit)
if err != nil {
return err
}
return si.update(bson.M{"$addToSet": bson.M{"units": unit.GetName()}})
}
func (c *Client) UnbindUnit(instance *ServiceInstance, app bind.App, unit bind.Unit) error {
log.Debugf("Calling unbind of service instance %q and unit %q at %q", instance.Name, unit.GetIp(), instance.ServiceName)
var resp *http.Response
url := "/resources/" + instance.GetIdentifier() + "/bind"
params := map[string][]string{
"app-host": {app.GetIp()},
"unit-host": {unit.GetIp()},
}
resp, err := c.issueRequest(url, "DELETE", params)
if err == nil {
defer resp.Body.Close()
if resp.StatusCode > 299 {
if resp.StatusCode == http.StatusNotFound {
return ErrInstanceNotFoundInAPI
}
err = errors.Wrapf(c.buildErrorMessage(err, resp), "Failed to unbind (%q)", url)
return log.WrapError(err)
}
}
return err
}
func (c *Client) Bind(instance *ServiceInstance, app bind.App, unit bind.Unit) (map[string]string, error) {
log.Debugf("Calling bind of instance %q and unit %q at %q API",
instance.Name, unit.GetIp(), instance.ServiceName)
var resp *http.Response
params := map[string][]string{
"unit-host": {unit.GetIp()},
"app-host": {app.GetIp()},
}
resp, err := c.issueRequest("/resources/"+instance.Name, "POST", params)
if err != nil {
if m, _ := regexp.MatchString("", err.Error()); m {
return nil, fmt.Errorf("%s api is down.", instance.Name)
}
return nil, err
}
if err == nil && resp.StatusCode < 300 {
var result map[string]string
err = c.jsonFromResponse(resp, &result)
if err != nil {
return nil, err
}
return result, nil
}
if resp.StatusCode == http.StatusPreconditionFailed {
return nil, &errors.HTTP{Code: resp.StatusCode, Message: "You cannot bind any app to this service instance because it is not ready yet."}
}
msg := "Failed to bind instance " + instance.Name + " to the unit " + unit.GetIp() + ": " + c.buildErrorMessage(err, resp)
log.Error(msg)
return nil, &errors.HTTP{Code: http.StatusInternalServerError, Message: msg}
}