X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/50d3c3897f0fad1bfcc4fc86096155d15d25483e..343e87375ce53c0b9c4234ed69206b31e206c877:/lib/config/cmd.go

diff --git a/lib/config/cmd.go b/lib/config/cmd.go
index aa3e3bca12..d64106fbce 100644
--- a/lib/config/cmd.go
+++ b/lib/config/cmd.go
@@ -5,15 +5,20 @@
 package config
 
 import (
+	"bytes"
+	"flag"
 	"fmt"
 	"io"
+	"os"
+	"os/exec"
 
-	"git.curoverse.com/arvados.git/lib/cmd"
-	"git.curoverse.com/arvados.git/sdk/go/ctxlog"
+	"git.arvados.org/arvados.git/sdk/go/arvados"
+	"git.arvados.org/arvados.git/sdk/go/ctxlog"
 	"github.com/ghodss/yaml"
+	"github.com/sirupsen/logrus"
 )
 
-var DumpCommand cmd.Handler = dumpCommand{}
+var DumpCommand dumpCommand
 
 type dumpCommand struct{}
 
@@ -24,12 +29,30 @@ func (dumpCommand) RunCommand(prog string, args []string, stdin io.Reader, stdou
 			fmt.Fprintf(stderr, "%s\n", err)
 		}
 	}()
-	if len(args) != 0 {
-		err = fmt.Errorf("usage: %s <config-src.yaml >config-min.yaml", prog)
+
+	loader := &Loader{
+		Stdin:  stdin,
+		Logger: ctxlog.New(stderr, "text", "info"),
+	}
+
+	flags := flag.NewFlagSet("", flag.ContinueOnError)
+	flags.SetOutput(stderr)
+	loader.SetupFlags(flags)
+
+	err = flags.Parse(args)
+	if err == flag.ErrHelp {
+		err = nil
+		return 0
+	} else if err != nil {
 		return 2
 	}
-	log := ctxlog.New(stderr, "text", "info")
-	cfg, err := Load(stdin, log)
+
+	if len(flags.Args()) != 0 {
+		flags.Usage()
+		return 2
+	}
+
+	cfg, err := loader.Load()
 	if err != nil {
 		return 1
 	}
@@ -43,3 +66,130 @@ func (dumpCommand) RunCommand(prog string, args []string, stdin io.Reader, stdou
 	}
 	return 0
 }
+
+var CheckCommand checkCommand
+
+type checkCommand struct{}
+
+func (checkCommand) RunCommand(prog string, args []string, stdin io.Reader, stdout, stderr io.Writer) int {
+	var err error
+	var logbuf = &bytes.Buffer{}
+	defer func() {
+		io.Copy(stderr, logbuf)
+		if err != nil {
+			fmt.Fprintf(stderr, "%s\n", err)
+		}
+	}()
+
+	logger := logrus.New()
+	logger.Out = logbuf
+	loader := &Loader{
+		Stdin:  stdin,
+		Logger: logger,
+	}
+
+	flags := flag.NewFlagSet("", flag.ContinueOnError)
+	flags.SetOutput(stderr)
+	loader.SetupFlags(flags)
+
+	err = flags.Parse(args)
+	if err == flag.ErrHelp {
+		err = nil
+		return 0
+	} else if err != nil {
+		return 2
+	}
+
+	if len(flags.Args()) != 0 {
+		flags.Usage()
+		return 2
+	}
+
+	// Load the config twice -- once without loading deprecated
+	// keys/files, once with -- and then compare the two resulting
+	// configs. This reveals whether the deprecated keys/files
+	// have any effect on the final configuration.
+	//
+	// If they do, show the operator how to update their config
+	// such that the deprecated keys/files are superfluous and can
+	// be deleted.
+	loader.SkipDeprecated = true
+	loader.SkipLegacy = true
+	withoutDepr, err := loader.Load()
+	if err != nil {
+		return 1
+	}
+	loader.SkipDeprecated = false
+	loader.SkipLegacy = false
+	withDepr, err := loader.Load()
+	if err != nil {
+		return 1
+	}
+	problems := false
+	if warnAboutProblems(logger, withDepr) {
+		problems = true
+	}
+	cmd := exec.Command("diff", "-u", "--label", "without-deprecated-configs", "--label", "relying-on-deprecated-configs", "/dev/fd/3", "/dev/fd/4")
+	for _, obj := range []interface{}{withoutDepr, withDepr} {
+		y, _ := yaml.Marshal(obj)
+		pr, pw, err := os.Pipe()
+		if err != nil {
+			return 1
+		}
+		defer pr.Close()
+		go func() {
+			io.Copy(pw, bytes.NewBuffer(y))
+			pw.Close()
+		}()
+		cmd.ExtraFiles = append(cmd.ExtraFiles, pr)
+	}
+	diff, err := cmd.CombinedOutput()
+	if bytes.HasPrefix(diff, []byte("--- ")) {
+		fmt.Fprintln(stdout, "Your configuration is relying on deprecated entries. Suggest making the following changes.")
+		stdout.Write(diff)
+		err = nil
+		return 1
+	} else if len(diff) > 0 {
+		fmt.Fprintf(stderr, "Unexpected diff output:\n%s", diff)
+		return 1
+	} else if err != nil {
+		return 1
+	}
+	if logbuf.Len() > 0 {
+		return 1
+	}
+
+	if problems {
+		return 1
+	} else {
+		return 0
+	}
+}
+
+func warnAboutProblems(logger logrus.FieldLogger, cfg *arvados.Config) bool {
+	warned := false
+	for id, cc := range cfg.Clusters {
+		if cc.SystemRootToken == "" {
+			logger.Warnf("Clusters.%s.SystemRootToken is empty; see https://doc.arvados.org/master/install/install-keepstore.html", id)
+			warned = true
+		}
+		if cc.ManagementToken == "" {
+			logger.Warnf("Clusters.%s.ManagementToken is empty; see https://doc.arvados.org/admin/management-token.html", id)
+			warned = true
+		}
+	}
+	return warned
+}
+
+var DumpDefaultsCommand defaultsCommand
+
+type defaultsCommand struct{}
+
+func (defaultsCommand) RunCommand(prog string, args []string, stdin io.Reader, stdout, stderr io.Writer) int {
+	_, err := stdout.Write(DefaultYAML)
+	if err != nil {
+		fmt.Fprintln(stderr, err)
+		return 1
+	}
+	return 0
+}