cli, ui: dismiss release notes signup banner per environment variable

Previously, the signup banner could only be dismissed manually.
For internal testing purposes, this banner is unnecessary. This
change provides a way to dismiss the signup banner upon start of
a cluster via the cli by setting the environment variable
COCKROACH_UI_RELEASE_NOTES_SIGNUP_DISMISSED=true.

Resolves #46998

Release note: none

pkg/cli/BUILD.bazel

@@ -315,6 +315,7 @@ go_test(
         "//pkg/util",
         "//pkg/util/bitarray",
         "//pkg/util/duration",
+        "//pkg/util/envutil",
         "//pkg/util/ipaddr",
         "//pkg/util/json",
         "//pkg/util/leaktest",

pkg/cli/start.go

@@ -22,6 +22,7 @@ import (
 	"os/signal"
 	"path/filepath"
 	"runtime"
+	"strconv"
 	"strings"
 	"text/tabwriter"
 	"time"
@@ -35,6 +36,7 @@ import (
 	"github.com/cockroachdb/cockroach/pkg/rpc"
 	"github.com/cockroachdb/cockroach/pkg/security"
 	"github.com/cockroachdb/cockroach/pkg/server"
+	"github.com/cockroachdb/cockroach/pkg/server/serverpb"
 	"github.com/cockroachdb/cockroach/pkg/server/status"
 	"github.com/cockroachdb/cockroach/pkg/server/telemetry"
 	"github.com/cockroachdb/cockroach/pkg/settings/cluster"
@@ -600,6 +602,10 @@ If problems persist, please see %s.`
 			if err := s.AcceptClients(ctx); err != nil {
 				return err
 			}
+			// Configure UI settings.
+			if err := setUIDataFromEnv(ctx, s); err != nil {
+				return err
+			}
 
 			// Now inform the user that the server is running and tell the
 			// user about its run-time derived parameters.
@@ -877,6 +883,19 @@ If problems persist, please see %s.`
 	return returnErr
 }
 
+// setUIDataFromEnv toggles presence of release notes signup banner
+// based on an environment variable.
+func setUIDataFromEnv(ctx context.Context, s *server.Server) error {
+	b := envutil.EnvOrDefaultBool("COCKROACH_UI_RELEASE_NOTES_SIGNUP_DISMISSED", false)
+	_, err := s.SetUIData(ctx, &serverpb.SetUIDataRequest{
+		KeyValues: map[string][]byte{"release_notes_signup_dismissed": []byte(strconv.FormatBool(b))}},
+		security.RootUserName())
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 // expandTabsInRedactableBytes expands tabs in the redactable byte
 // slice, so that columns are aligned. The correctness of this
 // function depends on the assumption that the `tabwriter` does not

pkg/cli/start_test.go

@@ -11,12 +11,21 @@
 package cli
 
 import (
+	"context"
+	"fmt"
+	"os"
 	"testing"
 
+	"github.com/cockroachdb/cockroach/pkg/base"
+	"github.com/cockroachdb/cockroach/pkg/rpc"
 	"github.com/cockroachdb/cockroach/pkg/server"
+	"github.com/cockroachdb/cockroach/pkg/server/serverpb"
 	"github.com/cockroachdb/cockroach/pkg/testutils"
+	"github.com/cockroachdb/cockroach/pkg/testutils/serverutils"
+	"github.com/cockroachdb/cockroach/pkg/util/envutil"
 	"github.com/cockroachdb/cockroach/pkg/util/leaktest"
 	"github.com/cockroachdb/cockroach/pkg/util/log"
+	"github.com/stretchr/testify/require"
 )
 
 func TestInitInsecure(t *testing.T) {
@@ -143,3 +152,52 @@ func TestAddrWithDefaultHost(t *testing.T) {
 		}
 	}
 }
+
+func TestSetUIFromEnv(t *testing.T) {
+	defer leaktest.AfterTest(t)()
+	defer log.Scope(t).Close(t)
+
+	ctx := context.Background()
+	s, _, _ := serverutils.StartServer(t, base.TestServerArgs{})
+	defer s.Stopper().Stop(ctx)
+	ts := s.(*server.TestServer)
+
+	const name = "COCKROACH_UI_RELEASE_NOTES_SIGNUP_DISMISSED"
+	const key = "release_notes_signup_dismissed"
+	for v, expected := range map[string]string{"true": "true", "false": "false", "": "false"} {
+		t.Run(fmt.Sprintf("%s=%s", name, v), func(t *testing.T) {
+			var err error
+			if v == "" {
+				err = os.Unsetenv(name)
+			} else {
+				err = os.Setenv(name, v)
+			}
+			if err != nil {
+				t.Fatal(err)
+			}
+			defer envutil.ClearEnvCache()
+
+			err = setUIDataFromEnv(ctx, ts.Server)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			cc, err := ts.RPCContext().GRPCDialNode(
+				ts.RPCAddr(),
+				1,
+				rpc.DefaultClass,
+			).Connect(ctx)
+			if err != nil {
+				t.Fatal(err)
+			}
+			adminClient := serverpb.NewAdminClient(cc)
+
+			resp, err := adminClient.GetUIData(ctx, &serverpb.GetUIDataRequest{Keys: []string{key}})
+			if err != nil {
+				t.Fatal(err)
+			}
+			actual := string(resp.KeyValues[key].Value)
+			require.Equal(t, expected, actual)
+		})
+	}
+}

pkg/server/admin.go

@@ -1194,17 +1194,12 @@ func splitUIKey(combined string) (string, string) {
 	return pair[0], pair[1]
 }
 
-// SetUIData is an endpoint that stores the given key/value pairs in the
+// SetUIData stores the given key/value pairs in the
 // system.ui table. See GetUIData for more details on semantics.
-func (s *adminServer) SetUIData(
-	ctx context.Context, req *serverpb.SetUIDataRequest,
+// This function writes to system.ui using the internal SQL executor of the provided server.
+func (s *Server) SetUIData(
+	ctx context.Context, req *serverpb.SetUIDataRequest, userName security.SQLUsername,
 ) (*serverpb.SetUIDataResponse, error) {
-	ctx = s.server.AnnotateCtx(ctx)
-
-	userName, err := userFromContext(ctx)
-	if err != nil {
-		return nil, err
-	}
 
 	if len(req.KeyValues) == 0 {
 		return nil, status.Errorf(codes.InvalidArgument, "KeyValues cannot be empty")
@@ -1214,23 +1209,40 @@ func (s *adminServer) SetUIData(
 		// Do an upsert of the key. We update each key in a separate transaction to
 		// avoid long-running transactions and possible deadlocks.
 		query := `UPSERT INTO system.ui (key, value, "lastUpdated") VALUES ($1, $2, now())`
-		rowsAffected, err := s.server.sqlServer.internalExecutor.ExecEx(
+		rowsAffected, err := s.sqlServer.internalExecutor.ExecEx(
 			ctx, "admin-set-ui-data", nil, /* txn */
 			sessiondata.InternalExecutorOverride{
 				User: security.RootUserName(),
 			},
 			query, makeUIKey(userName, key), val)
 		if err != nil {
-			return nil, s.serverError(err)
+			return nil, err
 		}
 		if rowsAffected != 1 {
-			return nil, s.serverErrorf("rows affected %d != expected %d", rowsAffected, 1)
+			return nil, errors.Newf("rows affected %d != expected %d", rowsAffected, 1)
 		}
 	}
 
 	return &serverpb.SetUIDataResponse{}, nil
 }
 
+// SetUIData is an endpoint that stores the given key/value pairs in the
+// system.ui table. See GetUIData for more details on semantics.
+func (s *adminServer) SetUIData(
+	ctx context.Context, req *serverpb.SetUIDataRequest,
+) (*serverpb.SetUIDataResponse, error) {
+	ctx = s.server.AnnotateCtx(ctx)
+	userName, err := userFromContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	_, err = s.server.SetUIData(ctx, req, userName)
+	if err != nil {
+		return nil, s.serverError(err)
+	}
+	return &serverpb.SetUIDataResponse{}, nil
+}
+
 // GetUIData returns data associated with the given keys, which was stored
 // earlier through SetUIData.
 //