af5298f4aa
Adds OpenTracing in the Pulumi engine and plugin + langhost subprocesses. We currently create a single root span for any `Enging.plan` operation - which is a single `preview`, `update`, `destroy`, etc. The only sub-spans we currently create are at gRPC boundaries, both on the client and server sides and on both the langhost and provider plugin interfaces. We could extend this to include spans for any other semantically meaningful sections of compute inside the engine, though initial examples show we get pretty good granularity of coverage by focusing on the gRPC boundaries. In the future, this should be easily extensible to HTTP boundaries and to track other bulky I/O like datastore read/writes once we hook up to the PPC and Pulumi Cloud. We expose a `--trace <endpoint>` option to enable tracing on the CLI, which we will aim to thread through to subprocesses. We currently support sending tracing data to a Zipkin-compatible endpoint. This has been validated with both Zipkin and Jaeger UIs. We do not yet have any tracing inside the TypeScript side of the JS langhost RPC interface. There is not yet automatic gRPC OpenTracing instrumentation (though it looks like it's in progress now) - so we would need to manually create meaningful spans on that side of the interface.
96 lines
3.1 KiB
Go
96 lines
3.1 KiB
Go
// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
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package cmd
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import (
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"bufio"
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"flag"
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"fmt"
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"os"
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"strings"
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"github.com/golang/glog"
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"github.com/spf13/cobra"
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"github.com/pulumi/pulumi/pkg/diag/colors"
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"github.com/pulumi/pulumi/pkg/util/cmdutil"
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)
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// pulumiBackend is the "backend" that we talk to. When the application launches, if the environment variable PULUMI_API is set, we
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// use a backend that targets the pulumi.com API, otherwise we use the local backend (i.e. "fire and forget" mode)
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var backend pulumiBackend
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func init() {
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if usePulumiCloudCommands() {
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backend = &pulumiCloudPulumiBackend{}
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} else {
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backend = &localPulumiBackend{}
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}
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}
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// NewPulumiCmd creates a new Pulumi Cmd instance.
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func NewPulumiCmd(version string) *cobra.Command {
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var logFlow bool
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var logToStderr bool
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var tracing string
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var verbose int
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var cwd string
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cmd := &cobra.Command{
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Use: "pulumi",
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PersistentPreRun: func(cmd *cobra.Command, args []string) {
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if cwd != "" {
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err := os.Chdir(cwd)
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if err != nil {
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cmdutil.ExitError(err.Error())
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}
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}
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cmdutil.InitLogging(logToStderr, verbose, logFlow)
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cmdutil.InitTracing("pulumi-cli", tracing)
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},
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PersistentPostRun: func(cmd *cobra.Command, args []string) {
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glog.Flush()
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cmdutil.CloseTracing()
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},
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}
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cmd.PersistentFlags().StringVarP(&cwd, "cwd", "C", "", "Run pulumi as if it had been started in another directory")
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cmd.PersistentFlags().BoolVar(&logFlow, "logflow", false, "Flow log settings to child processes (like plugins)")
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cmd.PersistentFlags().BoolVar(&logToStderr, "logtostderr", false, "Log to stderr instead of to files")
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cmd.PersistentFlags().StringVar(&tracing, "tracing", "", "Emit tracing to a Zipkin-compatible tracing endpoint")
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cmd.PersistentFlags().IntVarP(
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&verbose, "verbose", "v", 0, "Enable verbose logging (e.g., v=3); anything >3 is very verbose")
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cmd.AddCommand(newConfigCmd())
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cmd.AddCommand(newDestroyCmd())
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cmd.AddCommand(newStackCmd())
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cmd.AddCommand(newPreviewCmd())
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cmd.AddCommand(newUpdateCmd())
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cmd.AddCommand(newVersionCmd(version))
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cmd.AddCommand(newInitCmd())
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// Commands specific to the Pulumi Cloud Management Console.
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cmd.AddCommand(newLoginCmd())
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cmd.AddCommand(newLogoutCmd())
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// Tell flag about -C, so someone can do pulumi -C <working-directory> stack and the call to cmdutil.InitLogging
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// which calls flag.Parse under the hood doesn't yell at you.
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//
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// TODO[pulumi/pulumi#301]: when we move away from using glog, it should be safe to remove this.
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flag.StringVar(&cwd, "C", "", "Run pulumi as if it had been started in another directory")
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return cmd
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}
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func confirmPrompt(msg string, name string) bool {
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prompt := fmt.Sprintf(msg, name)
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fmt.Print(
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colors.ColorizeText(fmt.Sprintf("%v%v%v\n", colors.SpecAttention, prompt, colors.Reset)))
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fmt.Printf("Please confirm that this is what you'd like to do by typing (\"%v\"): ", name)
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reader := bufio.NewReader(os.Stdin)
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if line, _ := reader.ReadString('\n'); strings.TrimSpace(line) != name {
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fmt.Fprintf(os.Stderr, "Confirmation declined -- exiting without doing anything\n")
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return false
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}
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return true
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}
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