* Add a list of in-flight operations to the deployment This commit augments 'DeploymentV2' with a list of operations that are currently in flight. This information is used by the engine to keep track of whether or not a particular deployment is in a valid state. The SnapshotManager is responsible for inserting and removing operations from the in-flight operation list. When the engine registers an intent to perform an operation, SnapshotManager inserts an Operation into this list and saves it to the snapshot. When an operation completes, the SnapshotManager removes it from the snapshot. From this, the engine can infer that if it ever sees a deployment with pending operations, the Pulumi CLI must have crashed or otherwise abnormally terminated before seeing whether or not an operation completed successfully. To remedy this state, this commit also adds code to 'pulumi stack import' that clears all pending operations from a deployment, as well as code to plan generation that will reject any deployments that have pending operations present. At the CLI level, if we see that we are in a state where pending operations were in-flight when the engine died, we'll issue a human-friendly error message that indicates which resources are in a bad state and how to recover their stack. * CR: Multi-line string literals, renaming in-flight -> pending * CR: Add enum to apitype for operation type, also name status -> type for clarity * Fix the yaml type * Fix missed renames * Add implementation for lifecycle_test.go * Rebase against master
140 lines
4.7 KiB
Go
140 lines
4.7 KiB
Go
// Copyright 2016-2018, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmd
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import (
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"github.com/pulumi/pulumi/pkg/backend"
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"github.com/pulumi/pulumi/pkg/engine"
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"github.com/pulumi/pulumi/pkg/util/cmdutil"
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)
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func newPreviewCmd() *cobra.Command {
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var debug bool
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var expectNop bool
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var message string
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var stack string
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// Flags for engine.UpdateOptions.
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var analyzers []string
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var diffDisplay bool
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var nonInteractive bool
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var parallel int
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var showConfig bool
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var showReplacementSteps bool
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var showSames bool
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var cmd = &cobra.Command{
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Use: "preview",
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Aliases: []string{"pre"},
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SuggestFor: []string{"build", "plan"},
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Short: "Show a preview of updates to a stack's resources",
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Long: "Show a preview of updates a stack's resources.\n" +
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"\n" +
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"This command displays a preview of the updates to an existing stack whose state is\n" +
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"represented by an existing snapshot file. The new desired state is computed by running\n" +
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"a Pulumi program, and extracting all resource allocations from its resulting object graph.\n" +
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"These allocations are then compared against the existing state to determine what\n" +
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"operations must take place to achieve the desired state. No changes to the stack will\n" +
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"actually take place.\n" +
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"\n" +
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"The program to run is loaded from the project in the current directory. Use the `-C` or\n" +
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"`--cwd` flag to use a different directory.",
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Args: cmdutil.NoArgs,
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Run: cmdutil.RunFunc(func(cmd *cobra.Command, args []string) error {
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opts := backend.UpdateOptions{
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Engine: engine.UpdateOptions{
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Analyzers: analyzers,
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Parallel: parallel,
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Debug: debug,
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},
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Display: backend.DisplayOptions{
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Color: cmdutil.GetGlobalColorization(),
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ShowConfig: showConfig,
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ShowReplacementSteps: showReplacementSteps,
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ShowSameResources: showSames,
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IsInteractive: isInteractive(nonInteractive),
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DiffDisplay: diffDisplay,
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Debug: debug,
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},
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}
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s, err := requireStack(stack, true, opts.Display, true /*setCurrent*/)
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if err != nil {
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return err
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}
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proj, root, err := readProject()
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if err != nil {
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return err
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}
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m, err := getUpdateMetadata("", root)
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if err != nil {
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return errors.Wrap(err, "gathering environment metadata")
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}
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changes, err := s.Preview(commandContext(), proj, root, m, opts, cancellationScopes)
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switch {
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case err != nil:
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return PrintEngineError(err)
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case expectNop && changes != nil && changes.HasChanges():
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return errors.New("error: no changes were expected but changes were proposed")
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default:
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return nil
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}
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}),
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}
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cmd.PersistentFlags().BoolVarP(
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&debug, "debug", "d", false,
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"Print detailed debugging output during resource operations")
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cmd.PersistentFlags().BoolVar(
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&expectNop, "expect-no-changes", false,
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"Return an error if any changes are proposed by this preview")
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cmd.PersistentFlags().StringVarP(
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&stack, "stack", "s", "",
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"The name of the stack to operate on. Defaults to the current stack")
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cmd.PersistentFlags().StringVarP(
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&message, "message", "m", "",
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"Optional message to associate with the preview operation")
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// Flags for engine.UpdateOptions.
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cmd.PersistentFlags().StringSliceVar(
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&analyzers, "analyzer", []string{},
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"Run one or more analyzers as part of this update")
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cmd.PersistentFlags().BoolVar(
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&diffDisplay, "diff", false,
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"Display operation as a rich diff showing the overall change")
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cmd.PersistentFlags().BoolVar(
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&nonInteractive, "non-interactive", false, "Disable interactive mode")
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cmd.PersistentFlags().IntVarP(
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¶llel, "parallel", "p", 10,
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"Allow P resource operations to run in parallel at once (<=1 for no parallelism)")
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cmd.PersistentFlags().BoolVar(
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&showConfig, "show-config", false,
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"Show configuration keys and variables")
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cmd.PersistentFlags().BoolVar(
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&showReplacementSteps, "show-replacement-steps", false,
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"Show detailed resource replacement creates and deletes instead of a single step")
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cmd.PersistentFlags().BoolVar(
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&showSames, "show-sames", false,
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"Show resources that needn't be updated because they haven't changed, alongside those that do")
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return cmd
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}
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