open-nomad/client/allocrunnerv2/taskrunner/state/state.go
Michael Schurter 516d641db0 client: implement all-or-nothing alloc restoration
Restoring calls NewAR -> Restore -> Run

NewAR now calls NewTR
AR.Restore calls TR.Restore
AR.Run calls TR.Run
2018-10-16 16:53:29 -07:00

72 lines
1.5 KiB
Go

package state
import (
"github.com/hashicorp/nomad/client/structs"
"github.com/hashicorp/nomad/helper"
)
var (
// taskRunnerStateAllKey holds all the task runners state. At the moment
// there is no need to split it
//XXX refactor out of client/state and taskrunner
taskRunnerStateAllKey = []byte("simple-all")
)
// LocalState is Task state which is persisted for use when restarting Nomad
// agents.
type LocalState struct {
Hooks map[string]*HookState
// DriverNetwork is the network information returned by the task
// driver's Start method
DriverNetwork *structs.DriverNetwork
}
func NewLocalState() *LocalState {
return &LocalState{
Hooks: make(map[string]*HookState),
}
}
// Copy should be called with the lock held
func (s *LocalState) Copy() *LocalState {
// Create a copy
c := &LocalState{
Hooks: make(map[string]*HookState, len(s.Hooks)),
DriverNetwork: s.DriverNetwork,
}
// Copy the hooks
for h, state := range s.Hooks {
c.Hooks[h] = state.Copy()
}
return c
}
type HookState struct {
// Prestart is true if the hook has run Prestart successfully and does
// not need to run again
PrestartDone bool
Data map[string]string
}
func (h *HookState) Copy() *HookState {
c := new(HookState)
*c = *h
c.Data = helper.CopyMapStringString(c.Data)
return c
}
func (h *HookState) Equal(o *HookState) bool {
if h == nil || o == nil {
return h == o
}
if h.PrestartDone != o.PrestartDone {
return false
}
return helper.CompareMapStringString(h.Data, o.Data)
}