open-nomad/command/operator_scheduler_set_config_test.go
2023-04-10 15:36:59 +00:00

112 lines
3.9 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package command
import (
"strconv"
"testing"
"github.com/hashicorp/nomad/api"
"github.com/hashicorp/nomad/ci"
"github.com/mitchellh/cli"
"github.com/stretchr/testify/require"
)
func TestOperatorSchedulerSetConfig_Run(t *testing.T) {
ci.Parallel(t)
srv, _, addr := testServer(t, false, nil)
defer srv.Shutdown()
ui := cli.NewMockUi()
c := &OperatorSchedulerSetConfig{Meta: Meta{Ui: ui}}
bootstrappedConfig, _, err := srv.Client().Operator().SchedulerGetConfiguration(nil)
require.NoError(t, err)
require.NotEmpty(t, bootstrappedConfig.SchedulerConfig)
// Run the command with zero value and ensure the configuration does not
// change.
require.EqualValues(t, 0, c.Run([]string{"-address=" + addr}))
ui.ErrorWriter.Reset()
ui.OutputWriter.Reset()
// Read the configuration again and test that nothing has changed which
// ensures our empty flags are working correctly.
nonModifiedConfig, _, err := srv.Client().Operator().SchedulerGetConfiguration(nil)
require.NoError(t, err)
schedulerConfigEquals(t, bootstrappedConfig.SchedulerConfig, nonModifiedConfig.SchedulerConfig)
// Modify every configuration parameter using the flags. This ensures the
// merging is working correctly and that operators can control the entire
// object via the CLI.
modifyingArgs := []string{
"-address=" + addr,
"-scheduler-algorithm=spread",
"-pause-eval-broker=true",
"-memory-oversubscription=true",
"-reject-job-registration=true",
"-preempt-batch-scheduler=true",
"-preempt-service-scheduler=true",
"-preempt-sysbatch-scheduler=true",
"-preempt-system-scheduler=false",
}
require.EqualValues(t, 0, c.Run(modifyingArgs))
s := ui.OutputWriter.String()
require.Contains(t, s, "Scheduler configuration updated!")
modifiedConfig, _, err := srv.Client().Operator().SchedulerGetConfiguration(nil)
require.NoError(t, err)
schedulerConfigEquals(t, &api.SchedulerConfiguration{
SchedulerAlgorithm: "spread",
PreemptionConfig: api.PreemptionConfig{
SystemSchedulerEnabled: false,
SysBatchSchedulerEnabled: true,
BatchSchedulerEnabled: true,
ServiceSchedulerEnabled: true,
},
MemoryOversubscriptionEnabled: true,
RejectJobRegistration: true,
PauseEvalBroker: true,
}, modifiedConfig.SchedulerConfig)
ui.ErrorWriter.Reset()
ui.OutputWriter.Reset()
// Make a Freudian slip with one of the flags to ensure the usage is
// returned.
require.EqualValues(t, 1, c.Run([]string{"-address=" + addr, "-pause-evil-broker=true"}))
require.Contains(t, ui.OutputWriter.String(), "Usage: nomad operator scheduler set-config")
ui.ErrorWriter.Reset()
ui.OutputWriter.Reset()
// Try updating the config using an incorrect check-index value.
require.EqualValues(t, 1, c.Run([]string{
"-address=" + addr,
"-pause-eval-broker=false",
"-check-index=1000000",
}))
require.Contains(t, ui.ErrorWriter.String(), "check-index 1000000 does not match does not match current state")
ui.ErrorWriter.Reset()
ui.OutputWriter.Reset()
// Try updating the config using a correct check-index value.
require.EqualValues(t, 0, c.Run([]string{
"-address=" + addr,
"-pause-eval-broker=false",
"-check-index=" + strconv.FormatUint(modifiedConfig.SchedulerConfig.ModifyIndex, 10),
}))
require.Contains(t, ui.OutputWriter.String(), "Scheduler configuration updated!")
ui.ErrorWriter.Reset()
ui.OutputWriter.Reset()
}
func schedulerConfigEquals(t *testing.T, expected, actual *api.SchedulerConfiguration) {
require.Equal(t, expected.SchedulerAlgorithm, actual.SchedulerAlgorithm)
require.Equal(t, expected.RejectJobRegistration, actual.RejectJobRegistration)
require.Equal(t, expected.MemoryOversubscriptionEnabled, actual.MemoryOversubscriptionEnabled)
require.Equal(t, expected.PauseEvalBroker, actual.PauseEvalBroker)
require.Equal(t, expected.PreemptionConfig, actual.PreemptionConfig)
}