* raft file and quorum checks

* raft checks

* backup

* raft file checks test

* address comments and add more raft and file and process checks

* syntax issues

* modularize functions to compile differently on different os

* compile raft checks everywhere

* more build tag issues

* raft-diagnose

* correct file permission checks

* upgrade tests and add a getConfigOffline test that currently does not work

* comment

* update file checks method signature on windows

* Update physical/raft/raft_test.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* raft tests

* add todo comment for windows root ownership

* voter count message

* raft checks test fixes
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update tooling

* Run gofumpt

* go mod vendor

* 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>

* raft: initial work on raft ha storage support

* add note on join

* add todo note

* raft: add support for bootstrapping and joining existing nodes

* raft: gate bootstrap join by reading leader api address from storage

* raft: properly check for raft-only for certain conditionals

* raft: add bootstrap to api and cli

* raft: fix bootstrap cli command

* raft: add test for setting up new cluster with raft HA

* raft: extend TestRaft_HA_NewCluster to include inmem and consul backends

* raft: add test for updating an existing cluster to use raft HA

* raft: remove debug log lines, clean up verifyRaftPeers

* raft: minor cleanup

* raft: minor cleanup

* Update physical/raft/raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/ha.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/ha.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/logical_system_raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* address feedback comments

* address feedback comments

* raft: refactor tls keyring logic

* address feedback comments

* Update vault/raft.go
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* Update vault/raft.go
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* address feedback comments

* testing: fix import ordering

* raft: rename var, cleanup comment line

* docs: remove ha_storage restriction note on raft

* docs: more raft HA interaction updates with migration and recovery mode

* docs: update the raft join command

* raft: update comments

* raft: add missing isRaftHAOnly check for clearing out state set earlier

* raft: update a few ha_storage config checks

* Update command/operator_raft_bootstrap.go
Co-authored-by: Vishal Nayak <vishalnayak@users.noreply.github.com>

* raft: address feedback comments

* raft: fix panic when checking for config.HAStorage.Type

* Update vault/raft.go
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* Update website/pages/docs/commands/operator/raft.mdx
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* raft: remove bootstrap cli command

* Update vault/raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* raft: address review feedback

* raft: revert vendored sdk

* raft: don't send applied index and node ID info if we're HA-only
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>
Co-authored-by: Vishal Nayak <vishalnayak@users.noreply.github.com>

* initial work on improving snapshot performance

* Work on snapshots

* rename a few functions

* Cleanup the snapshot file

* vendor the safeio library

* Add a test

* Add more tests

* Some review comments

* Fix comment

* Update physical/raft/snapshot.go
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* Update physical/raft/snapshot.go
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* Review feedback
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* storage/raft: Split snapshot restore disk write into batches

* Work on snapshot consistency

* make sure tests send a snapshot

* Fix comment

* Don't remove metrics

* Fix comment

* Add an end-to-end raft chunk test

* Apply suggestions from code review
Co-Authored-By: Jim Kalafut <jkalafut@hashicorp.com>

* Support raft in the migration command

* Add comments

Support chunking, including snapshot handling

* Work on raft backend

* Add logstore locally

* Add encryptor and unsealable interfaces

* Add clustering support to raft

* Remove client and handler

* Bootstrap raft on init

* Cleanup raft logic a bit

* More raft work

* Work on TLS config

* More work on bootstrapping

* Fix build

* More work on bootstrapping

* More bootstrapping work

* fix build

* Remove consul dep

* Fix build

* merged oss/master into raft-storage

* Work on bootstrapping

* Get bootstrapping to work

* Clean up FMS and node-id

* Update local node ID logic

* Cleanup node-id change

* Work on snapshotting

* Raft: Add remove peer API (#906)

* Add remove peer API

* Add some comments

* Fix existing snapshotting (#909)

* Raft get peers API (#912)

* Read raft configuration

* address review feedback

* Use the Leadership Transfer API to step-down the active node (#918)

* Raft join and unseal using Shamir keys (#917)

* Raft join ...