* Fix some tracing issues. - Add endpoints for `startUpdate` and `postEngineEventsBatch` so that spans for these invocations have proper names - Inject a tracing span when walking a plan so that resource operations are properly parented - When handling gRPC calls, inject a tracing span into the call's metadata if no span is already present so that resource monitor and engine spans are properly parented - Do not trace client gRPC invocations of the empty method so that these calls (which are used to determine server availability) do not muddy the trace. Note that I tried parenting these spans appropriately, but doing so broke the trace entirely. With these changes, the only unparented span in a typical Pulumi invocation is a single call to `getUser`. This span is unparented because that call does not have a context available. Plumbing a context into that particular call is surprisingly tricky, as it is often called by other context-less functions. * Make tracing support more flexible. - Add support for writing trace data to a local file using Appdash - Add support for viewing Appdash traces via the CLI
82 lines
2.3 KiB
Go
82 lines
2.3 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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"fmt"
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"io"
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"net/http"
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"net/url"
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"os"
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"github.com/spf13/cobra"
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"sourcegraph.com/sourcegraph/appdash"
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"sourcegraph.com/sourcegraph/appdash/traceapp"
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"github.com/pulumi/pulumi/pkg/util/cmdutil"
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"github.com/pulumi/pulumi/pkg/util/contract"
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)
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func readTrace(path string, store io.ReaderFrom) error {
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f, err := os.Open(path)
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if err != nil {
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return err
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}
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defer contract.IgnoreClose(f)
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_, err = store.ReadFrom(f)
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return err
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}
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func newViewTraceCmd() *cobra.Command {
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var port int
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var cmd = &cobra.Command{
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Use: "view-trace [trace-file]",
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Short: "Display a trace from the Pulumi CLI",
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Long: "Display a trace from the Pulumi CLI.\n" +
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"\n" +
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"This command is used to display execution traces collected by a prior\n" +
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"invocation of the Pulumi CLI.\n" +
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"\n" +
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"This command loads trace data from the indicated file and starts a\n" +
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"webserver to display the trace. By default, this server will listen\n" +
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"port 8008; the --port flag can be used to change this if necessary.",
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Args: cmdutil.ExactArgs(1),
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Run: cmdutil.RunFunc(func(cmd *cobra.Command, args []string) error {
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url, err := url.Parse(fmt.Sprintf("http://localhost:%d", port))
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if err != nil {
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return err
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}
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store := appdash.NewMemoryStore()
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if err := readTrace(args[0], store); err != nil {
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return err
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}
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app, err := traceapp.New(nil, url)
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if err != nil {
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return err
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}
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app.Store, app.Queryer = store, store
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fmt.Printf("Displaying trace at %v\n", url)
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return http.ListenAndServe(fmt.Sprintf(":%d", port), app)
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}),
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}
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cmd.PersistentFlags().IntVar(&port, "port", 8008,
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"the port the trace viewer will listen on")
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return cmd
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}
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