open-vault/command/operator_raft_autopilot_get_config.go
Vishal Nayak 3e55e79a3f
Autopilot: Server Stabilization, State and Dead Server Cleanup (#10856)
* k8s doc: update for 0.9.1 and 0.8.0 releases (#10825)

* k8s doc: update for 0.9.1 and 0.8.0 releases

* Update website/content/docs/platform/k8s/helm/configuration.mdx

Co-authored-by: Theron Voran <tvoran@users.noreply.github.com>

Co-authored-by: Theron Voran <tvoran@users.noreply.github.com>

* Autopilot initial commit

* Move autopilot related backend implementations to its own file

* Abstract promoter creation

* Add nil check for health

* Add server state oss no-ops

* Config ext stub for oss

* Make way for non-voters

* s/health/state

* s/ReadReplica/NonVoter

* Add synopsis and description

* Remove struct tags from AutopilotConfig

* Use var for config storage path

* Handle nin-config when reading

* Enable testing autopilot by using inmem cluster

* First passing test

* Only report the server as known if it is present in raft config

* Autopilot defaults to on for all existing and new clusters

* Add locking to some functions

* Persist initial config

* Clarify the command usage doc

* Add health metric for each node

* Fix audit logging issue

* Don't set DisablePerformanceStandby to true in test

* Use node id label for health metric

* Log updates to autopilot config

* Less aggressively consume config loading failures

* Return a mutable config

* Return early from known servers if raft config is unable to be pulled

* Update metrics name

* Reduce log level for potentially noisy log

* Add knob to disable autopilot

* Don't persist if default config is in use

* Autopilot: Dead server cleanup (#10857)

* Dead server cleanup

* Initialize channel in any case

* Fix a bunch of tests

* Fix panic

* Add follower locking in heartbeat tracker

* Add LastContactFailureThreshold to config

* Add log when marking node as dead

* Update follower state locking in heartbeat tracker

* Avoid follower states being nil

* Pull test to its own file

* Add execution status to state response

* Optionally enable autopilot in some tests

* Updates

* Added API function to fetch autopilot configuration

* Add test for default autopilot configuration

* Configuration tests

* Add State API test

* Update test

* Added TestClusterOptions.PhysicalFactoryConfig

* Update locking

* Adjust locking in heartbeat tracker

* s/last_contact_failure_threshold/left_server_last_contact_threshold

* Add disabling autopilot as a core config option

* Disable autopilot in some tests

* s/left_server_last_contact_threshold/dead_server_last_contact_threshold

* Set the lastheartbeat of followers to now when setting up active node

* Don't use config defaults from CLI command

* Remove config file support

* Remove HCL test as well

* Persist only supplied config; merge supplied config with default to operate

* Use pointer to structs for storing follower information

* Test update

* Retrieve non voter status from configbucket and set it up when a node comes up

* Manage desired suffrage

* Consider bucket being created already

* Move desired suffrage to its own entry

* s/DesiredSuffrageKey/LocalNodeConfigKey

* s/witnessSuffrage/recordSuffrage

* Fix test compilation

* Handle local node config post a snapshot install

* Commit to storage first; then record suffrage in fsm

* No need of local node config being nili case, post snapshot restore

* Reconcile autopilot config when a new leader takes over duty

* Grab fsm lock when recording suffrage

* s/Suffrage/DesiredSuffrage in FollowerState

* Instantiate autopilot only in leader

* Default to old ways in more scenarios

* Make API gracefully handle 404

* Address some feedback

* Make IsDead an atomic.Value

* Simplify follower hearbeat tracking

* Use uber.atomic

* Don't have multiple causes for having autopilot disabled

* Don't remove node from follower states if we fail to remove the dead server

* Autopilot server removals map (#11019)

* Don't remove node from follower states if we fail to remove the dead server

* Use map to track dead server removals

* Use lock and map

* Use delegate lock

* Adjust when to remove entry from map

* Only hold the lock while accessing map

* Fix race

* Don't set default min_quorum

* Fix test

* Ensure follower states is not nil before starting autopilot

* Fix race

Co-authored-by: Jason O'Donnell <2160810+jasonodonnell@users.noreply.github.com>
Co-authored-by: Theron Voran <tvoran@users.noreply.github.com>
2021-03-03 13:59:50 -05:00

92 lines
2.4 KiB
Go

package command
import (
"fmt"
"strings"
"github.com/mitchellh/cli"
"github.com/posener/complete"
)
var _ cli.Command = (*OperatorRaftAutopilotGetConfigCommand)(nil)
var _ cli.CommandAutocomplete = (*OperatorRaftAutopilotGetConfigCommand)(nil)
type OperatorRaftAutopilotGetConfigCommand struct {
*BaseCommand
}
func (c *OperatorRaftAutopilotGetConfigCommand) Synopsis() string {
return "Returns the configuration of the autopilot subsystem under integrated storage"
}
func (c *OperatorRaftAutopilotGetConfigCommand) Help() string {
helpText := `
Usage: vault operator raft autopilot get-config
Returns the configuration of the autopilot subsystem under integrated storage.
` + c.Flags().Help()
return strings.TrimSpace(helpText)
}
func (c *OperatorRaftAutopilotGetConfigCommand) Flags() *FlagSets {
set := c.flagSet(FlagSetHTTP | FlagSetOutputFormat)
return set
}
func (c *OperatorRaftAutopilotGetConfigCommand) AutocompleteArgs() complete.Predictor {
return complete.PredictAnything
}
func (c *OperatorRaftAutopilotGetConfigCommand) AutocompleteFlags() complete.Flags {
return c.Flags().Completions()
}
func (c *OperatorRaftAutopilotGetConfigCommand) Run(args []string) int {
f := c.Flags()
if err := f.Parse(args); err != nil {
c.UI.Error(err.Error())
return 1
}
args = f.Args()
switch len(args) {
case 0:
default:
c.UI.Error(fmt.Sprintf("Incorrect arguments (expected 0, got %d)", len(args)))
return 1
}
client, err := c.Client()
if err != nil {
c.UI.Error(err.Error())
return 2
}
config, err := client.Sys().RaftAutopilotConfiguration()
if err != nil {
c.UI.Error(err.Error())
return 2
}
if config == nil {
return 0
}
if Format(c.UI) != "table" {
return OutputData(c.UI, config)
}
entries := []string{"Key | Value"}
entries = append(entries, fmt.Sprintf("%s | %t", "Cleanup Dead Servers", config.CleanupDeadServers))
entries = append(entries, fmt.Sprintf("%s | %s", "Last Contact Threshold", config.LastContactThreshold.String()))
entries = append(entries, fmt.Sprintf("%s | %s", "Dead Server Last Contact Threshold", config.DeadServerLastContactThreshold.String()))
entries = append(entries, fmt.Sprintf("%s | %s", "Server Stabilization Time", config.ServerStabilizationTime.String()))
entries = append(entries, fmt.Sprintf("%s | %d", "Min Quorum", config.MinQuorum))
entries = append(entries, fmt.Sprintf("%s | %d", "Max Trailing Logs", config.MaxTrailingLogs))
return OutputData(c.UI, entries)
}