pulumi/pkg/engine/destroy.go

97 lines
3.2 KiB
Go

// Copyright 2016-2018, Pulumi Corporation.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package engine
import (
"context"
"github.com/pulumi/pulumi/pkg/v3/display"
"github.com/pulumi/pulumi/pkg/v3/resource/deploy"
"github.com/pulumi/pulumi/sdk/v3/go/common/resource/plugin"
"github.com/pulumi/pulumi/sdk/v3/go/common/util/contract"
"github.com/pulumi/pulumi/sdk/v3/go/common/util/logging"
"github.com/pulumi/pulumi/sdk/v3/go/common/workspace"
)
func Destroy(
u UpdateInfo,
ctx *Context,
opts UpdateOptions,
dryRun bool,
) (*deploy.Plan, display.ResourceChanges, error) {
contract.Requiref(u != nil, "u", "cannot be nil")
contract.Requiref(ctx != nil, "ctx", "cannot be nil")
defer func() { ctx.Events <- NewCancelEvent() }()
info, err := newDeploymentContext(u, "destroy", ctx.ParentSpan)
if err != nil {
return nil, nil, err
}
defer info.Close()
emitter, err := makeEventEmitter(ctx.Events, u)
if err != nil {
return nil, nil, err
}
defer emitter.Close()
logging.V(7).Infof("*** Starting Destroy(preview=%v) ***", dryRun)
defer logging.V(7).Infof("*** Destroy(preview=%v) complete ***", dryRun)
if err := checkTargets(opts.Targets, u.GetTarget().Snapshot); err != nil {
return nil, nil, err
}
return update(ctx, info, &deploymentOptions{
UpdateOptions: opts,
SourceFunc: newDestroySource,
Events: emitter,
Diag: newEventSink(emitter, false),
StatusDiag: newEventSink(emitter, true),
DryRun: dryRun,
})
}
func newDestroySource(
ctx context.Context,
client deploy.BackendClient, opts *deploymentOptions, proj *workspace.Project, pwd, main, projectRoot string,
target *deploy.Target, plugctx *plugin.Context,
) (deploy.Source, error) {
// Like Update, we need to gather the set of plugins necessary to delete everything in the snapshot.
// Unlike Update, we don't actually run the user's program so we only need the set of plugins described
// in the snapshot.
plugins, err := gatherPluginsFromSnapshot(plugctx, target)
if err != nil {
return nil, err
}
// Like Update, if we're missing plugins, attempt to download the missing plugins.
if err := EnsurePluginsAreInstalled(ctx, opts, plugctx.Diag, plugins.Deduplicate(),
plugctx.Host.GetProjectPlugins(), false /*reinstall*/, false /*explicitInstall*/); err != nil {
logging.V(7).Infof("newDestroySource(): failed to install missing plugins: %v", err)
}
// We don't need the language plugin, since destroy doesn't run code, so we will leave that out.
if err := ensurePluginsAreLoaded(plugctx, plugins, plugin.AnalyzerPlugins); err != nil {
return nil, err
}
// Create a nil source. This simply returns "nothing" as the new state, which will cause the
// engine to destroy the entire existing state.
return deploy.NewNullSource(proj.Name), nil
}