81 lines
1.9 KiB
Go
81 lines
1.9 KiB
Go
package hello
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import (
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"context"
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"strconv"
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"sync"
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"time"
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"github.com/hashicorp/go-hclog"
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"github.com/hashicorp/go-plugin"
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"github.com/hashicorp/nomad/drivers/shared/executor"
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"github.com/hashicorp/nomad/plugins/drivers"
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)
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// taskHandle should store all relevant runtime information
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// such as process ID if this is a local task or other meta
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// data if this driver deals with external APIs
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type taskHandle struct {
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// stateLock syncs access to all fields below
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stateLock sync.RWMutex
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logger hclog.Logger
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exec executor.Executor
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pluginClient *plugin.Client
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taskConfig *drivers.TaskConfig
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procState drivers.TaskState
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startedAt time.Time
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completedAt time.Time
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exitResult *drivers.ExitResult
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// TODO: add any extra relevant information about the task.
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pid int
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}
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func (h *taskHandle) TaskStatus() *drivers.TaskStatus {
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h.stateLock.RLock()
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defer h.stateLock.RUnlock()
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return &drivers.TaskStatus{
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ID: h.taskConfig.ID,
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Name: h.taskConfig.Name,
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State: h.procState,
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StartedAt: h.startedAt,
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CompletedAt: h.completedAt,
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ExitResult: h.exitResult,
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DriverAttributes: map[string]string{
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"pid": strconv.Itoa(h.pid),
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},
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}
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}
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func (h *taskHandle) IsRunning() bool {
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h.stateLock.RLock()
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defer h.stateLock.RUnlock()
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return h.procState == drivers.TaskStateRunning
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}
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func (h *taskHandle) run() {
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h.stateLock.Lock()
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if h.exitResult == nil {
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h.exitResult = &drivers.ExitResult{}
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}
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h.stateLock.Unlock()
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// TODO: wait for your task to complete and upate its state.
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ps, err := h.exec.Wait(context.Background())
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h.stateLock.Lock()
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defer h.stateLock.Unlock()
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if err != nil {
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h.exitResult.Err = err
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h.procState = drivers.TaskStateUnknown
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h.completedAt = time.Now()
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return
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}
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h.procState = drivers.TaskStateExited
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h.exitResult.ExitCode = ps.ExitCode
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h.exitResult.Signal = ps.Signal
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h.completedAt = ps.Time
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}
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