105 lines
2.9 KiB
Go
105 lines
2.9 KiB
Go
package common
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import (
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"context"
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"fmt"
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"log"
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"time"
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"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
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)
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// StepProvision runs the provisioners.
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//
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// Uses:
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// communicator packer.Communicator
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// hook packer.Hook
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// ui packer.Ui
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//
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// Produces:
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// <nothing>
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type StepProvision struct {
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Comm packer.Communicator
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}
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func PopulateProvisionHookData(state multistep.StateBag) packer.ProvisionHookData {
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hookData := packer.NewProvisionHookData()
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// Add WinRMPassword to runtime data
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WinRMPassword, ok := state.GetOk("winrm_password")
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if ok {
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hookData.WinRMPassword = WinRMPassword.(string)
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}
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return hookData
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}
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func (s *StepProvision) runWithHook(ctx context.Context, state multistep.StateBag, hooktype string) multistep.StepAction {
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// hooktype will be either packer.HookProvision or packer.HookCleanupProvision
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comm := s.Comm
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if comm == nil {
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raw, ok := state.Get("communicator").(packer.Communicator)
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if ok {
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comm = raw.(packer.Communicator)
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}
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}
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hook := state.Get("hook").(packer.Hook)
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ui := state.Get("ui").(packer.Ui)
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hookData := PopulateProvisionHookData(state)
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// Run the provisioner in a goroutine so we can continually check
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// for cancellations...
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if hooktype == packer.HookProvision {
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log.Println("Running the provision hook")
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} else if hooktype == packer.HookCleanupProvision {
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ui.Say("Provisioning step had errors: Running the cleanup provisioner, if present...")
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}
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errCh := make(chan error, 1)
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go func() {
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errCh <- hook.Run(ctx, hooktype, ui, comm, &hookData)
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}()
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for {
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select {
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case err := <-errCh:
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if err != nil {
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if hooktype == packer.HookProvision {
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// We don't overwrite the error if it's a cleanup
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// provisioner being run.
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state.Put("error", err)
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} else if hooktype == packer.HookCleanupProvision {
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origErr := state.Get("error").(error)
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state.Put("error", fmt.Errorf("Cleanup failed: %s. "+
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"Original Provisioning error: %s", err, origErr))
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}
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return multistep.ActionHalt
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}
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return multistep.ActionContinue
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case <-ctx.Done():
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log.Printf("Cancelling provisioning due to context cancellation: %s", ctx.Err())
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return multistep.ActionHalt
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case <-time.After(1 * time.Second):
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if _, ok := state.GetOk(multistep.StateCancelled); ok {
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log.Println("Cancelling provisioning due to interrupt...")
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return multistep.ActionHalt
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}
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}
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}
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}
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func (s *StepProvision) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
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return s.runWithHook(ctx, state, packer.HookProvision)
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}
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func (s *StepProvision) Cleanup(state multistep.StateBag) {
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// We have a "final" provisioner that gets defined by "error-cleanup-provisioner"
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// which we only call if there's an error during the provision run and
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// the "error-cleanup-provisioner" is defined.
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if _, ok := state.GetOk("error"); ok {
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s.runWithHook(context.Background(), state, packer.HookCleanupProvision)
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}
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}
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