func ApplyServices(vm *hypervisor.Vm, container string, services []pod.UserService) error {
// Update lo ip addresses
var command []string
oldServices, err := GetServices(vm, container)
if err != nil {
return err
}
err = UpdateLoopbackAddress(vm, container, oldServices, services)
if err != nil {
return err
}
// Update haproxy config
config := path.Join(ServiceVolume, ServiceConfig)
vm.WriteFile(container, config, GenerateServiceConfig(services))
command = append(command, "sh")
command = append(command, "-c")
command = append(command, "haproxy -f /usr/local/etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -sf `cat /var/run/haproxy.pid`")
execcmd, err := json.Marshal(command)
if err != nil {
return err
}
return vm.Exec(nil, nil, string(execcmd), "", container)
}
// Setup lo ip address
// options for operation: add or del
func SetupLoopbackAddress(vm *hypervisor.Vm, container, ip, operation string) error {
execId := fmt.Sprintf("exec-%s", utils.RandStr(10, "alpha"))
command := "ip addr " + operation + " dev lo " + ip + "/32"
execcmd, err := json.Marshal(strings.Split(command, " "))
if err != nil {
return err
}
tty := &hypervisor.TtyIO{
Callback: make(chan *types.VmResponse, 1),
}
vm.Pod.AddExec(container, execId, command, false)
defer vm.Pod.DeleteExec(execId)
if err := vm.Exec(container, execId, string(execcmd), false, tty); err != nil {
return err
}
es := vm.Pod.GetExec(execId)
if es == nil {
return fmt.Errorf("cannot find exec status for %s: %s", command, execId)
}
if es.ExitCode != 0 {
return fmt.Errorf("exec %s on container %s failed with exit code %d", command, container, es.ExitCode)
}
return nil
}
// Setup lo ip address
// options for operation: add or del
func SetupLoopbackAddress(vm *hypervisor.Vm, container, ip, operation string) error {
execId := fmt.Sprintf("exec-%s", utils.RandStr(10, "alpha"))
command := "ip addr " + operation + " dev lo " + ip + "/32"
execcmd, err := json.Marshal(strings.Split(command, " "))
if err != nil {
return err
}
tty := &hypervisor.TtyIO{
Callback: make(chan *types.VmResponse, 1),
}
result := vm.WaitProcess(false, []string{execId}, 60)
if result == nil {
return fmt.Errorf("can not wait %s, id: %s", command, execId)
}
if err := vm.Exec(container, execId, string(execcmd), false, tty); err != nil {
return err
}
r, ok := <-result
if !ok {
return fmt.Errorf("exec failed %s: %s", command, execId)
}
if r.Code != 0 {
return fmt.Errorf("exec %s on container %s failed with exit code %d", command, container, r.Code)
}
return nil
}
// Setup lo ip address
// options for operation: add or del
func SetupLoopbackAddress(vm *hypervisor.Vm, container, ip, operation string) error {
command := "ip addr " + operation + " dev lo " + ip + "/32"
execcmd, err := json.Marshal(strings.Split(command, " "))
if err != nil {
return err
}
return vm.Exec(nil, nil, string(execcmd), "", container)
}
func ApplyServices(vm *hypervisor.Vm, container string, services []pod.UserService) error {
// Update lo ip addresses
var command []string
oldServices, err := GetServices(vm, container)
if err != nil {
return err
}
err = UpdateLoopbackAddress(vm, container, oldServices, services)
if err != nil {
return err
}
// Update haproxy config
config := path.Join(ServiceVolume, ServiceConfig)
vm.WriteFile(container, config, GenerateServiceConfig(services))
command = append(command, "sh")
command = append(command, "-c")
command = append(command, "haproxy -f /usr/local/etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -sf `cat /var/run/haproxy.pid`")
execcmd, err := json.Marshal(command)
if err != nil {
return err
}
tty := &hypervisor.TtyIO{
Callback: make(chan *types.VmResponse, 1),
ClientTag: pod.RandStr(8, "alphanum"),
}
if err := vm.Exec(tty, container, string(execcmd)); err != nil {
return err
}
if tty.ExitCode != 0 {
return fmt.Errorf("exec %s on container %s failed with exit code %d", command, container, tty.ExitCode)
}
return nil
}
// Setup lo ip address
// options for operation: add or del
func SetupLoopbackAddress(vm *hypervisor.Vm, container, ip, operation string) error {
command := "ip addr " + operation + " dev lo " + ip + "/32"
execcmd, err := json.Marshal(strings.Split(command, " "))
if err != nil {
return err
}
tty := &hypervisor.TtyIO{
Callback: make(chan *types.VmResponse, 1),
ClientTag: pod.RandStr(8, "alphanum"),
}
if err := vm.Exec(tty, container, string(execcmd)); err != nil {
return err
}
if tty.ExitCode != 0 {
return fmt.Errorf("exec %s on container %s failed with exit code %d", command, container, tty.ExitCode)
}
return nil
}
