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Post implementation for gateway (#201)
* post implementation for gateway * comments * comments * nit
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| package gateway | ||
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| import ( | ||
| "github.com/pkg/errors" | ||
| "github.com/runatlantis/atlantis/server/core/config/valid" | ||
| "github.com/runatlantis/atlantis/server/events" | ||
| "github.com/runatlantis/atlantis/server/events/command" | ||
| "github.com/runatlantis/atlantis/server/events/metrics" | ||
| "github.com/runatlantis/atlantis/server/events/models" | ||
| "github.com/runatlantis/atlantis/server/events/vcs" | ||
| "github.com/runatlantis/atlantis/server/logging" | ||
| "github.com/runatlantis/atlantis/server/recovery" | ||
| "github.com/uber-go/tally" | ||
| "strconv" | ||
| ) | ||
|
|
||
| // AutoplanValidator handles setting up repo cloning and checking to verify of any terraform files have changed | ||
| type AutoplanValidator struct { | ||
| Logger logging.SimpleLogging | ||
| Scope tally.Scope | ||
| VCSClient vcs.Client | ||
| PreWorkflowHooksCommandRunner events.PreWorkflowHooksCommandRunner | ||
| Drainer *events.Drainer | ||
| GlobalCfg valid.GlobalCfg | ||
| // AllowForkPRs controls whether we operate on pull requests from forks. | ||
| AllowForkPRs bool | ||
| // AllowForkPRsFlag is the name of the flag that controls fork PR's. We use | ||
| // this in our error message back to the user on a forked PR so they know | ||
| // how to enable this functionality. | ||
| AllowForkPRsFlag string | ||
| // SilenceForkPRErrors controls whether to comment on Fork PRs when AllowForkPRs = False | ||
| SilenceForkPRErrors bool | ||
| // SilenceForkPRErrorsFlag is the name of the flag that controls fork PR's. We use | ||
| // this in our error message back to the user on a forked PR so they know | ||
| // how to disable error comment | ||
| SilenceForkPRErrorsFlag string | ||
| // SilenceVCSStatusNoPlans is whether autoplan should set commit status if no plans | ||
| // are found | ||
| silenceVCSStatusNoPlans bool | ||
| // SilenceVCSStatusNoPlans is whether any plan should set commit status if no projects | ||
| // are found | ||
| silenceVCSStatusNoProjects bool | ||
| CommitStatusUpdater events.CommitStatusUpdater | ||
| PrjCmdBuilder events.ProjectPlanCommandBuilder | ||
| PullUpdater *events.PullUpdater | ||
| } | ||
|
|
||
| func (r *AutoplanValidator) isValid(baseRepo models.Repo, headRepo models.Repo, pull models.PullRequest, user models.User) (bool, error) { | ||
| if opStarted := r.Drainer.StartOp(); !opStarted { | ||
| return false, errors.New("atlantis is shutting down, cannot process current event") | ||
| } | ||
| defer r.Drainer.OpDone() | ||
|
|
||
| log := r.Logger.WithHistory( | ||
| "repository", baseRepo.FullName, | ||
| "pull-num", strconv.Itoa(pull.Num), | ||
| ) | ||
| defer r.logPanics(log) | ||
|
|
||
| ctx := &command.Context{ | ||
| User: user, | ||
| Log: log, | ||
| Scope: r.Scope, | ||
| Pull: pull, | ||
| HeadRepo: headRepo, | ||
| Trigger: command.AutoTrigger, | ||
| } | ||
| if !r.validateCtxAndComment(ctx) { | ||
| return false, errors.New("invalid command context") | ||
| } | ||
| err := r.PreWorkflowHooksCommandRunner.RunPreHooks(ctx) | ||
| if err != nil { | ||
| ctx.Log.Err("Error running pre-workflow hooks %s. Proceeding with %s command.", err, command.Plan) | ||
| } | ||
|
|
||
| projectCmds, err := r.PrjCmdBuilder.BuildAutoplanCommands(ctx) | ||
| if err != nil { | ||
| if statusErr := r.CommitStatusUpdater.UpdateCombined(baseRepo, pull, models.FailedCommitStatus, command.Plan); statusErr != nil { | ||
| ctx.Log.Warn("unable to update commit status: %s", statusErr) | ||
| } | ||
| r.PullUpdater.UpdatePull(ctx, events.AutoplanCommand{}, command.Result{Error: err}) | ||
| return false, errors.Wrap(err, "Failed building autoplan commands") | ||
| } | ||
| if len(projectCmds) == 0 { | ||
| ctx.Log.Info("determined there was no project to run plan in") | ||
| if !(r.silenceVCSStatusNoPlans || r.silenceVCSStatusNoProjects) { | ||
| // If there were no projects modified, we set successful commit statuses | ||
| // with 0/0 projects planned/policy_checked/applied successfully because some users require | ||
| // the Atlantis status to be passing for all pull requests. | ||
| ctx.Log.Debug("setting VCS status to success with no projects found") | ||
| for _, cmd := range []command.Name{command.Plan, command.Apply, command.PolicyCheck} { | ||
| if err := r.CommitStatusUpdater.UpdateCombinedCount(baseRepo, pull, models.SuccessCommitStatus, cmd, 0, 0); err != nil { | ||
| ctx.Log.Warn("unable to update commit status: %s", err) | ||
| } | ||
| } | ||
| } | ||
| return false, nil | ||
| } | ||
| return true, nil | ||
| } | ||
|
|
||
| func (r *AutoplanValidator) InstrumentedIsValid(baseRepo models.Repo, headRepo models.Repo, pull models.PullRequest, user models.User) bool { | ||
| timer := r.Scope.Timer(metrics.ExecutionTimeMetric).Start() | ||
| defer timer.Stop() | ||
| isValid, err := r.isValid(baseRepo, headRepo, pull, user) | ||
| if err != nil { | ||
| r.Logger.With("repo", baseRepo.FullName, "pull", pull.Num).Err(err.Error()) | ||
| r.Scope.Counter(metrics.ExecutionErrorMetric).Inc(1) | ||
| return false | ||
| } | ||
| if !isValid { | ||
| r.Scope.Counter(metrics.ExecutionFailureMetric).Inc(1) | ||
| return false | ||
| } | ||
| r.Scope.Counter(metrics.ExecutionSuccessMetric).Inc(1) | ||
| return true | ||
| } | ||
|
|
||
| func (r *AutoplanValidator) logPanics(logger logging.SimpleLogging) { | ||
| if err := recover(); err != nil { | ||
| stack := recovery.Stack(3) | ||
| logger.Err("PANIC: %s\n%s", err, stack) | ||
| } | ||
| } | ||
|
|
||
| func (r *AutoplanValidator) validateCtxAndComment(ctx *command.Context) bool { | ||
| if !r.AllowForkPRs && ctx.HeadRepo.Owner != ctx.Pull.BaseRepo.Owner { | ||
| if r.SilenceForkPRErrors { | ||
| return false | ||
| } | ||
| ctx.Log.Info("command was run on a fork pull request which is disallowed") | ||
| return false | ||
| } | ||
|
|
||
| if ctx.Pull.State != models.OpenPullState { | ||
| ctx.Log.Info("command was run on closed pull request") | ||
| return false | ||
| } | ||
|
|
||
| repo := r.GlobalCfg.MatchingRepo(ctx.Pull.BaseRepo.ID()) | ||
| if !repo.BranchMatches(ctx.Pull.BaseBranch) { | ||
| ctx.Log.Info("command was run on a pull request which doesn't match base branches") | ||
| // just ignore it to allow us to use any git workflows without malicious intentions. | ||
| return false | ||
| } | ||
| return true | ||
| } |
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