52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
package taskrunner
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import (
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"context"
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log "github.com/hashicorp/go-hclog"
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"github.com/hashicorp/nomad/client/allocrunnerv2/interfaces"
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cconfig "github.com/hashicorp/nomad/client/config"
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"github.com/hashicorp/nomad/client/driver"
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"github.com/hashicorp/nomad/nomad/structs"
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)
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type taskDirHook struct {
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runner *TaskRunner
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logger log.Logger
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}
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func newTaskDirHook(runner *TaskRunner, logger log.Logger) *taskDirHook {
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td := &taskDirHook{
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runner: runner,
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}
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td.logger = logger.Named(td.Name())
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return td
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}
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func (h *taskDirHook) Name() string {
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return "task_dir"
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}
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func (h *taskDirHook) Prestart(ctx context.Context, req *interfaces.TaskPrestartRequest, resp *interfaces.TaskPrestartResponse) error {
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cc := h.runner.clientConfig
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chroot := cconfig.DefaultChrootEnv
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if len(cc.ChrootEnv) > 0 {
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chroot = cc.ChrootEnv
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}
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// Emit the event that we are going to be building the task directory
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h.runner.EmitEvent(structs.NewTaskEvent(structs.TaskSetup).SetMessage(structs.TaskBuildingTaskDir))
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// Build the task directory structure
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fsi := h.runner.driver.FSIsolation()
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err := h.runner.taskDir.Build(false, chroot, fsi)
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if err != nil {
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return err
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}
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// Update the environment variables based on the built task directory
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driver.SetEnvvars(h.runner.envBuilder, fsi, h.runner.taskDir, h.runner.clientConfig)
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resp.Done = true
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return nil
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}
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