391 lines
12 KiB
Go
391 lines
12 KiB
Go
package rafttests
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import (
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"context"
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"fmt"
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"math"
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"reflect"
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"testing"
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"time"
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"github.com/hashicorp/go-hclog"
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autopilot "github.com/hashicorp/raft-autopilot"
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"github.com/hashicorp/vault/api"
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"github.com/hashicorp/vault/helper/namespace"
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"github.com/hashicorp/vault/helper/testhelpers"
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"github.com/hashicorp/vault/helper/testhelpers/teststorage"
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"github.com/hashicorp/vault/physical/raft"
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"github.com/hashicorp/vault/sdk/helper/strutil"
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"github.com/hashicorp/vault/vault"
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"github.com/kr/pretty"
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testingintf "github.com/mitchellh/go-testing-interface"
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"github.com/stretchr/testify/require"
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)
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func TestRaft_Autopilot_Disable(t *testing.T) {
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cluster := raftCluster(t, &RaftClusterOpts{
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DisableFollowerJoins: true,
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InmemCluster: true,
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// Not setting EnableAutopilot here.
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})
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defer cluster.Cleanup()
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client := cluster.Cores[0].Client
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state, err := client.Sys().RaftAutopilotState()
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require.NoError(t, err)
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require.Nil(t, nil, state)
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}
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func TestRaft_Autopilot_Stabilization_And_State(t *testing.T) {
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cluster := raftCluster(t, &RaftClusterOpts{
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DisableFollowerJoins: true,
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InmemCluster: true,
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EnableAutopilot: true,
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})
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defer cluster.Cleanup()
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// Check that autopilot execution state is running
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client := cluster.Cores[0].Client
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state, err := client.Sys().RaftAutopilotState()
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require.NoError(t, err)
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require.Equal(t, true, state.Healthy)
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require.Len(t, state.Servers, 1)
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require.Equal(t, "core-0", state.Servers["core-0"].ID)
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require.Equal(t, "alive", state.Servers["core-0"].NodeStatus)
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require.Equal(t, "leader", state.Servers["core-0"].Status)
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config, err := client.Sys().RaftAutopilotConfiguration()
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require.NoError(t, err)
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// Wait for 110% of the stabilization time to add nodes
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stabilizationKickOffWaitDuration := time.Duration(math.Ceil(1.1 * float64(config.ServerStabilizationTime)))
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time.Sleep(stabilizationKickOffWaitDuration)
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joinAndStabilizeFunc := func(core *vault.TestClusterCore, nodeID string, numServers int) {
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joinFunc := func(core *vault.TestClusterCore) {
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_, err := core.JoinRaftCluster(namespace.RootContext(context.Background()), []*raft.LeaderJoinInfo{
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{
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LeaderAPIAddr: client.Address(),
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TLSConfig: cluster.Cores[0].TLSConfig,
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Retry: true,
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},
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}, false)
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require.NoError(t, err)
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time.Sleep(1 * time.Second)
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cluster.UnsealCore(t, core)
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}
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joinFunc(core)
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time.Sleep(2 * time.Second)
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state, err = client.Sys().RaftAutopilotState()
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require.NoError(t, err)
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require.Equal(t, false, state.Healthy)
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require.Len(t, state.Servers, numServers)
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require.Equal(t, false, state.Servers[nodeID].Healthy)
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require.Equal(t, "alive", state.Servers[nodeID].NodeStatus)
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require.Equal(t, "non-voter", state.Servers[nodeID].Status)
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// Wait till the stabilization period is over
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stabilizationWaitDuration := time.Duration(float64(config.ServerStabilizationTime))
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deadline := time.Now().Add(stabilizationWaitDuration)
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healthy := false
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for time.Now().Before(deadline) {
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state, err := client.Sys().RaftAutopilotState()
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require.NoError(t, err)
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if state.Healthy {
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healthy = true
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}
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time.Sleep(1 * time.Second)
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}
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if !healthy {
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t.Fatalf("cluster failed to stabilize")
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}
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// Now that the server is stable, wait for autopilot to reconcile and
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// promotion to happen. Reconcile interval is 10 seconds. Bound it by
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// doubling.
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deadline = time.Now().Add(2 * autopilot.DefaultReconcileInterval)
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failed := true
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for time.Now().Before(deadline) {
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state, err = client.Sys().RaftAutopilotState()
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require.NoError(t, err)
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if state.Servers[nodeID].Status == "voter" {
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failed = false
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break
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}
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time.Sleep(1 * time.Second)
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}
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if failed {
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t.Fatalf("autopilot failed to promote node: id: %#v: state:%# v\n", nodeID, pretty.Formatter(state))
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}
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}
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joinAndStabilizeFunc(cluster.Cores[1], "core-1", 2)
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joinAndStabilizeFunc(cluster.Cores[2], "core-2", 3)
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state, err = client.Sys().RaftAutopilotState()
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require.NoError(t, err)
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require.Equal(t, []string{"core-0", "core-1", "core-2"}, state.Voters)
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}
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func TestRaft_Autopilot_Configuration(t *testing.T) {
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cluster := raftCluster(t, &RaftClusterOpts{
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DisableFollowerJoins: true,
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InmemCluster: true,
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EnableAutopilot: true,
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})
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defer cluster.Cleanup()
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client := cluster.Cores[0].Client
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configCheckFunc := func(config *api.AutopilotConfig) {
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conf, err := client.Sys().RaftAutopilotConfiguration()
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require.NoError(t, err)
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require.Equal(t, config, conf)
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}
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writeConfigFunc := func(config map[string]interface{}, expectError bool) {
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resp, err := client.Logical().Write("sys/storage/raft/autopilot/configuration", config)
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if expectError {
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require.Error(t, err)
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return
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}
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require.NoError(t, err)
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require.Nil(t, resp)
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}
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// Ensure autopilot's default config has taken effect
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config := &api.AutopilotConfig{
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CleanupDeadServers: false,
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DeadServerLastContactThreshold: 24 * time.Hour,
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LastContactThreshold: 10 * time.Second,
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MaxTrailingLogs: 1000,
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ServerStabilizationTime: 10 * time.Second,
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}
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configCheckFunc(config)
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// Update config
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writableConfig := map[string]interface{}{
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"cleanup_dead_servers": true,
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"dead_server_last_contact_threshold": "100h",
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"last_contact_threshold": "100s",
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"max_trailing_logs": 100,
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"min_quorum": 100,
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"server_stabilization_time": "100s",
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}
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writeConfigFunc(writableConfig, false)
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// Ensure update has taken effect
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config.CleanupDeadServers = true
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config.DeadServerLastContactThreshold = 100 * time.Hour
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config.LastContactThreshold = 100 * time.Second
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config.MaxTrailingLogs = 100
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config.MinQuorum = 100
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config.ServerStabilizationTime = 100 * time.Second
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configCheckFunc(config)
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// Update some fields and leave the rest as it is.
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writableConfig = map[string]interface{}{
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"dead_server_last_contact_threshold": "50h",
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"max_trailing_logs": 50,
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"server_stabilization_time": "50s",
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}
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writeConfigFunc(writableConfig, false)
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// Check update
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config.DeadServerLastContactThreshold = 50 * time.Hour
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config.MaxTrailingLogs = 50
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config.ServerStabilizationTime = 50 * time.Second
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configCheckFunc(config)
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// Check error case
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writableConfig = map[string]interface{}{
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"min_quorum": 2,
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"dead_server_last_contact_threshold": "48h",
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}
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writeConfigFunc(writableConfig, true)
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configCheckFunc(config)
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// Ensure that the configuration stays across reboots
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leaderCore := cluster.Cores[0]
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testhelpers.EnsureCoreSealed(t, cluster.Cores[0])
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cluster.UnsealCore(t, leaderCore)
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vault.TestWaitActive(t, leaderCore.Core)
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configCheckFunc(config)
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}
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// TestRaft_Autopilot_Stabilization_Delay verifies that if a node takes a long
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// time to become ready, it doesn't get promoted to voter until then.
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func TestRaft_Autopilot_Stabilization_Delay(t *testing.T) {
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conf, opts := teststorage.ClusterSetup(nil, nil, teststorage.RaftBackendSetup)
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conf.DisableAutopilot = false
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opts.InmemClusterLayers = true
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opts.KeepStandbysSealed = true
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opts.SetupFunc = nil
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timeToHealthyCore2 := 5 * time.Second
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opts.PhysicalFactory = func(t testingintf.T, coreIdx int, logger hclog.Logger, conf map[string]interface{}) *vault.PhysicalBackendBundle {
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config := map[string]interface{}{
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"snapshot_threshold": "50",
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"trailing_logs": "100",
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"autopilot_reconcile_interval": "1s",
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"snapshot_interval": "1s",
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}
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if coreIdx == 2 {
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config["snapshot_delay"] = timeToHealthyCore2.String()
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}
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return teststorage.MakeRaftBackend(t, coreIdx, logger, config)
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}
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cluster := vault.NewTestCluster(t, conf, opts)
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cluster.Start()
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defer cluster.Cleanup()
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testhelpers.WaitForActiveNode(t, cluster)
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// Check that autopilot execution state is running
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client := cluster.Cores[0].Client
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state, err := client.Sys().RaftAutopilotState()
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require.NotNil(t, state)
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require.NoError(t, err)
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require.Equal(t, true, state.Healthy)
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require.Len(t, state.Servers, 1)
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require.Equal(t, "core-0", state.Servers["core-0"].ID)
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require.Equal(t, "alive", state.Servers["core-0"].NodeStatus)
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require.Equal(t, "leader", state.Servers["core-0"].Status)
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_, err = client.Logical().Write("sys/storage/raft/autopilot/configuration", map[string]interface{}{
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"server_stabilization_time": "5s",
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})
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require.NoError(t, err)
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config, err := client.Sys().RaftAutopilotConfiguration()
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require.NoError(t, err)
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// Wait for 110% of the stabilization time to add nodes
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stabilizationKickOffWaitDuration := time.Duration(math.Ceil(1.1 * float64(config.ServerStabilizationTime)))
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time.Sleep(stabilizationKickOffWaitDuration)
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cli := cluster.Cores[0].Client
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// Write more keys than snapshot_threshold
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for i := 0; i < 250; i++ {
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_, err := cli.Logical().Write(fmt.Sprintf("secret/%d", i), map[string]interface{}{
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"test": "data",
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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joinFunc := func(core *vault.TestClusterCore) {
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_, err := core.JoinRaftCluster(namespace.RootContext(context.Background()), []*raft.LeaderJoinInfo{
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{
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LeaderAPIAddr: client.Address(),
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TLSConfig: cluster.Cores[0].TLSConfig,
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},
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}, false)
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require.NoError(t, err)
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time.Sleep(1 * time.Second)
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cluster.UnsealCore(t, core)
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}
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joinFunc(cluster.Cores[1])
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joinFunc(cluster.Cores[2])
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core2shouldBeHealthyAt := time.Now().Add(timeToHealthyCore2)
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stabilizationWaitDuration := time.Duration(1.25 * float64(config.ServerStabilizationTime))
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deadline := time.Now().Add(stabilizationWaitDuration)
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var core1healthy, core2healthy bool
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for time.Now().Before(deadline) {
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state, err := client.Sys().RaftAutopilotState()
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require.NoError(t, err)
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core1healthy = state.Servers["core-1"] != nil && state.Servers["core-1"].Healthy
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core2healthy = state.Servers["core-2"] != nil && state.Servers["core-2"].Healthy
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time.Sleep(1 * time.Second)
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}
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if !core1healthy || core2healthy {
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t.Fatalf("expected health: core1=true and core2=false, got: core1=%v, core2=%v", core1healthy, core2healthy)
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}
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time.Sleep(2 * time.Second) // wait for reconciliation
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state, err = client.Sys().RaftAutopilotState()
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require.NoError(t, err)
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require.Equal(t, []string{"core-0", "core-1"}, state.Voters)
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for time.Now().Before(core2shouldBeHealthyAt) {
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state, err := client.Sys().RaftAutopilotState()
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require.NoError(t, err)
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core2healthy = state.Servers["core-2"].Healthy
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time.Sleep(1 * time.Second)
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t.Log(core2healthy)
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}
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deadline = time.Now().Add(10 * time.Second)
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for time.Now().Before(deadline) {
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state, err = client.Sys().RaftAutopilotState()
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if err != nil {
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t.Fatal(err)
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}
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if strutil.EquivalentSlices(state.Voters, []string{"core-0", "core-1", "core-2"}) {
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break
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}
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}
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require.Equal(t, []string{"core-0", "core-1", "core-2"}, state.Voters)
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}
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func TestRaft_AutoPilot_Peersets_Equivalent(t *testing.T) {
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cluster := raftCluster(t, &RaftClusterOpts{
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InmemCluster: true,
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EnableAutopilot: true,
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DisableFollowerJoins: true,
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})
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defer cluster.Cleanup()
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testhelpers.WaitForActiveNode(t, cluster)
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// Create a very large stabilization time so we can test the state between
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// joining and promotions
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client := cluster.Cores[0].Client
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_, err := client.Logical().Write("sys/storage/raft/autopilot/configuration", map[string]interface{}{
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"server_stabilization_time": "1h",
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})
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require.NoError(t, err)
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joinFunc := func(core *vault.TestClusterCore) {
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_, err := core.JoinRaftCluster(namespace.RootContext(context.Background()), []*raft.LeaderJoinInfo{
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{
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LeaderAPIAddr: client.Address(),
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TLSConfig: cluster.Cores[0].TLSConfig,
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},
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}, false)
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require.NoError(t, err)
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time.Sleep(1 * time.Second)
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cluster.UnsealCore(t, core)
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}
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joinFunc(cluster.Cores[1])
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joinFunc(cluster.Cores[2])
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deadline := time.Now().Add(10 * time.Second)
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var core0Peers, core1Peers, core2Peers []raft.Peer
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for time.Now().Before(deadline) {
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// Make sure all nodes have an equivalent configuration
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core0Peers, err = cluster.Cores[0].UnderlyingRawStorage.(*raft.RaftBackend).Peers(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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core1Peers, err = cluster.Cores[1].UnderlyingRawStorage.(*raft.RaftBackend).Peers(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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core2Peers, err = cluster.Cores[2].UnderlyingRawStorage.(*raft.RaftBackend).Peers(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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if reflect.DeepEqual(core0Peers, core1Peers) && reflect.DeepEqual(core1Peers, core2Peers) {
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break
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}
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time.Sleep(time.Second)
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}
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require.Equal(t, core0Peers, core1Peers)
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require.Equal(t, core1Peers, core2Peers)
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}
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