306 lines
8.5 KiB
Go
306 lines
8.5 KiB
Go
package remote
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import (
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"bufio"
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"context"
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"errors"
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"fmt"
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"math"
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"time"
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tfe "github.com/hashicorp/go-tfe"
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"github.com/hashicorp/terraform/backend"
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"github.com/hashicorp/terraform/terraform"
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)
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// backoff will perform exponential backoff based on the iteration and
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// limited by the provided min and max (in milliseconds) durations.
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func backoff(min, max float64, iter int) time.Duration {
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backoff := math.Pow(2, float64(iter)/5) * min
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if backoff > max {
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backoff = max
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}
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return time.Duration(backoff) * time.Millisecond
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}
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func (b *Remote) waitForRun(stopCtx, cancelCtx context.Context, op *backend.Operation, opType string, r *tfe.Run, w *tfe.Workspace) (*tfe.Run, error) {
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started := time.Now()
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updated := started
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for i := 0; ; i++ {
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select {
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case <-stopCtx.Done():
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return r, stopCtx.Err()
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case <-cancelCtx.Done():
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return r, cancelCtx.Err()
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case <-time.After(backoff(1000, 3000, i)):
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// Timer up, show status
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}
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// Retrieve the run to get its current status.
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r, err := b.client.Runs.Read(stopCtx, r.ID)
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if err != nil {
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return r, generalError("error retrieving run", err)
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}
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// Return if the run is no longer pending.
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if r.Status != tfe.RunPending && r.Status != tfe.RunConfirmed {
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if i == 0 && opType == "plan" && b.CLI != nil {
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b.CLI.Output(b.Colorize().Color(fmt.Sprintf("Waiting for the %s to start...\n", opType)))
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}
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if i > 0 && b.CLI != nil {
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// Insert a blank line to separate the ouputs.
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b.CLI.Output("")
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}
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return r, nil
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}
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// Check if 30 seconds have passed since the last update.
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current := time.Now()
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if b.CLI != nil && (i == 0 || current.Sub(updated).Seconds() > 30) {
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updated = current
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position := 0
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elapsed := ""
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// Calculate and set the elapsed time.
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if i > 0 {
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elapsed = fmt.Sprintf(
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" (%s elapsed)", current.Sub(started).Truncate(30*time.Second))
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}
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// Retrieve the workspace used to run this operation in.
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w, err = b.client.Workspaces.Read(stopCtx, b.organization, w.Name)
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if err != nil {
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return nil, generalError("error retrieving workspace", err)
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}
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// If the workspace is locked the run will not be queued and we can
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// update the status without making any expensive calls.
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if w.Locked && w.CurrentRun != nil {
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cr, err := b.client.Runs.Read(stopCtx, w.CurrentRun.ID)
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if err != nil {
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return r, generalError("error retrieving current run", err)
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}
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if cr.Status == tfe.RunPending {
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b.CLI.Output(b.Colorize().Color(
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"Waiting for the manually locked workspace to be unlocked..." + elapsed))
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continue
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}
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}
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// Skip checking the workspace queue when we are the current run.
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if w.CurrentRun == nil || w.CurrentRun.ID != r.ID {
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found := false
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options := tfe.RunListOptions{}
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runlist:
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for {
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rl, err := b.client.Runs.List(stopCtx, w.ID, options)
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if err != nil {
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return r, generalError("error retrieving run list", err)
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}
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// Loop through all runs to calculate the workspace queue position.
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for _, item := range rl.Items {
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if !found {
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if r.ID == item.ID {
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found = true
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}
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continue
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}
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// If the run is in a final state, ignore it and continue.
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switch item.Status {
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case tfe.RunApplied, tfe.RunCanceled, tfe.RunDiscarded, tfe.RunErrored:
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continue
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case tfe.RunPlanned:
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if op.Type == backend.OperationTypePlan {
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continue
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}
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}
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// Increase the workspace queue position.
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position++
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// Stop searching when we reached the current run.
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if w.CurrentRun != nil && w.CurrentRun.ID == item.ID {
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break runlist
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}
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}
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// Exit the loop when we've seen all pages.
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if rl.CurrentPage >= rl.TotalPages {
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break
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}
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// Update the page number to get the next page.
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options.PageNumber = rl.NextPage
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}
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if position > 0 {
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b.CLI.Output(b.Colorize().Color(fmt.Sprintf(
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"Waiting for %d run(s) to finish before being queued...%s",
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position,
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elapsed,
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)))
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continue
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}
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}
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options := tfe.RunQueueOptions{}
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search:
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for {
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rq, err := b.client.Organizations.RunQueue(stopCtx, b.organization, options)
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if err != nil {
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return r, generalError("error retrieving queue", err)
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}
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// Search through all queued items to find our run.
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for _, item := range rq.Items {
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if r.ID == item.ID {
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position = item.PositionInQueue
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break search
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}
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}
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// Exit the loop when we've seen all pages.
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if rq.CurrentPage >= rq.TotalPages {
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break
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}
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// Update the page number to get the next page.
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options.PageNumber = rq.NextPage
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}
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if position > 0 {
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c, err := b.client.Organizations.Capacity(stopCtx, b.organization)
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if err != nil {
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return r, generalError("error retrieving capacity", err)
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}
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b.CLI.Output(b.Colorize().Color(fmt.Sprintf(
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"Waiting for %d queued run(s) to finish before starting...%s",
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position-c.Running,
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elapsed,
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)))
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continue
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}
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b.CLI.Output(b.Colorize().Color(fmt.Sprintf(
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"Waiting for the %s to start...%s", opType, elapsed)))
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}
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}
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}
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func (b *Remote) checkPolicy(stopCtx, cancelCtx context.Context, op *backend.Operation, r *tfe.Run) error {
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if b.CLI != nil {
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b.CLI.Output("\n------------------------------------------------------------------------\n")
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}
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for i, pc := range r.PolicyChecks {
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logs, err := b.client.PolicyChecks.Logs(stopCtx, pc.ID)
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if err != nil {
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return generalError("error retrieving policy check logs", err)
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}
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scanner := bufio.NewScanner(logs)
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// Retrieve the policy check to get its current status.
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pc, err := b.client.PolicyChecks.Read(stopCtx, pc.ID)
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if err != nil {
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return generalError("error retrieving policy check", err)
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}
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var msgPrefix string
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switch pc.Scope {
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case tfe.PolicyScopeOrganization:
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msgPrefix = "Organization policy check"
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case tfe.PolicyScopeWorkspace:
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msgPrefix = "Workspace policy check"
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default:
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msgPrefix = fmt.Sprintf("Unknown policy check (%s)", pc.Scope)
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}
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if b.CLI != nil {
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b.CLI.Output(b.Colorize().Color(msgPrefix + ":\n"))
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}
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for scanner.Scan() {
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if b.CLI != nil {
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b.CLI.Output(b.Colorize().Color(scanner.Text()))
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}
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}
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if err := scanner.Err(); err != nil {
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return generalError("error reading logs", err)
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}
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switch pc.Status {
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case tfe.PolicyPasses:
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if (op.Type == backend.OperationTypeApply || i < len(r.PolicyChecks)-1) && b.CLI != nil {
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b.CLI.Output("\n------------------------------------------------------------------------")
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}
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continue
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case tfe.PolicyErrored:
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return fmt.Errorf(msgPrefix + " errored.")
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case tfe.PolicyHardFailed:
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return fmt.Errorf(msgPrefix + " hard failed.")
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case tfe.PolicySoftFailed:
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if op.Type == backend.OperationTypePlan || op.UIOut == nil || op.UIIn == nil ||
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op.AutoApprove || !pc.Actions.IsOverridable || !pc.Permissions.CanOverride {
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return fmt.Errorf(msgPrefix + " soft failed.")
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}
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default:
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return fmt.Errorf("Unknown or unexpected policy state: %s", pc.Status)
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}
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opts := &terraform.InputOpts{
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Id: "override",
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Query: "\nDo you want to override the soft failed policy check?",
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Description: "Only 'override' will be accepted to override.",
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}
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if err = b.confirm(stopCtx, op, opts, r, "override"); err != nil {
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return err
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}
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if _, err = b.client.PolicyChecks.Override(stopCtx, pc.ID); err != nil {
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return generalError("error overriding policy check", err)
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}
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if b.CLI != nil {
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b.CLI.Output("------------------------------------------------------------------------")
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}
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}
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return nil
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}
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func (b *Remote) confirm(stopCtx context.Context, op *backend.Operation, opts *terraform.InputOpts, r *tfe.Run, keyword string) error {
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v, err := op.UIIn.Input(opts)
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if err != nil {
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return fmt.Errorf("Error asking %s: %v", opts.Id, err)
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}
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if v != keyword {
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// Retrieve the run again to get its current status.
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r, err = b.client.Runs.Read(stopCtx, r.ID)
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if err != nil {
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return generalError("error retrieving run", err)
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}
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// Make sure we discard the run if possible.
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if r.Actions.IsDiscardable {
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err = b.client.Runs.Discard(stopCtx, r.ID, tfe.RunDiscardOptions{})
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if err != nil {
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if op.Destroy {
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return generalError("error disarding destroy", err)
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}
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return generalError("error disarding apply", err)
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}
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}
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// Even if the run was disarding successfully, we still
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// return an error as the apply command was cancelled.
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if op.Destroy {
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return errors.New("Destroy discarded.")
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}
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return errors.New("Apply discarded.")
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}
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return nil
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}
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