Lifecycle overrides #4445
Lifecycle overrides #4445
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/assign @justinsb I think this is more your style. It is not wired into the cli yet, and apply_cluster.go needs some tweaks, but PTAL |
upup/pkg/fi/task.go
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| } | ||
| hl, ok := task.(HasLifecycle) | ||
| if !ok { | ||
| glog.Fatalf("task %T does not implement HasLifecycle", task) |
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This needs to be a warning and a return. Problem is with nodeup tasks. This is breaking CI
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| @@ -109,6 +113,8 @@ func NewCmdUpdateCluster(f *util.Factory, out io.Writer) *cobra.Command { | |||
| cmd.Flags().StringVar(&options.OutDir, "out", options.OutDir, "Path to write any local output") | |||
| cmd.Flags().BoolVar(&options.CreateKubecfg, "create-kube-config", options.CreateKubecfg, "Will control automatically creating the kube config file on your local filesystem") | |||
| cmd.Flags().StringVar(&options.Phase, "phase", options.Phase, "Subset of tasks to run: "+strings.Join(cloudup.Phases.List(), ", ")) | |||
| cmd.Flags().StringSliceVar(&options.LifecycleOverrides, "lifecycle-overrides", options.LifecycleOverrides, "comma separated list of phase overrides, example: SecurityGroups=Ignore,InternetGateway=ExistsAndWarnIfChanges") | |||
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I separated this out so that a phase does not have to be set. If we include this with the --phase flag a user would not be able to run all of the phases. Thoughts?
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I am open to other ideas, but I do not want to force a user to define a phase in order to use overrides. Users will want to use overrides but not specify a phase. We can do phase="", but that is ugly and a change to syntax. Phases are a group of tasks and lifecycles, while lifecycle overrides are just setting the lifecycle on a single task. Kinda stumped how to do this well.
@rdrgmnzs I know you are going to use this functionality, any opinion?
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@justinsb PTAL. I think I am going to close my other lifecycle PR because I like this one better. Let me know what you think! |
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I was planning on adding testing to my SecurityGroup PR for this functionality. Any ideas on easy unit testing? /assign @rdrgmnzs |
| return fmt.Errorf("Incorrect syntax for lifecyle-overrides, correct syntax is TaskName=lifecycleName, override provided: %q", override) | ||
| } | ||
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| taskName := values[0] |
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This is going to be case-sensitive (and fail silently on case mismatch)
| if v, ok := fi.LifecycleNameMap[lifecycle]; ok { | ||
| return v, nil | ||
| } | ||
| return "", fmt.Errorf("unknown lifecycle %q, available lifecycle: %s", lifecycle, strings.Join(fi.Lifecycles.List(), ",")) |
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(This one is fine, because we fail-fast and give a helpful message)
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/lgtm |
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: chrislovecnm, justinsb The full list of commands accepted by this bot can be found here. The pull request process is described here
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This PR adds the capability to override a task lifecycle dynamically. A list of lifecycles keyed by task names is provided, and those lifecycles can override a matching task name.