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* Updates Raft library to get new snapshot/restore API. * Basic backup and restore working, but need some cleanup. * Breaks out a snapshot module and adds a SHA256 integrity check. * Adds snapshot ACL and fills in some missing comments. * Require a consistent read for snapshots. * Make sure snapshot works if ACLs aren't enabled. * Adds a bit of package documentation. * Returns an empty response from restore to avoid EOF errors. * Adds API client support for snapshots. * Makes internal file names match on-disk file snapshots. * Adds DC and token coverage for snapshot API test. * Adds missing documentation. * Adds a unit test for the snapshot client endpoint. * Moves the connection pool out of the client for easier testing. * Fixes an incidental issue in the prepared query unit test. I realized I had two servers in bootstrap mode so this wasn't a good setup. * Adds a half close to the TCP stream and fixes panic on error. * Adds client and endpoint tests for snapshots. * Moves the pool back into the snapshot RPC client. * Adds a TLS test and fixes half-closes for TLS connections. * Tweaks some comments. * Adds a low-level snapshot test. This is independent of Consul so we can pull this out into a library later if we want to. * Cleans up snapshot and archive and completes archive tests. * Sends a clear error for snapshot operations in dev mode. Snapshots require the Raft snapshots to be readable, which isn't supported in dev mode. Send a clear error instead of a deep-down Raft one. * Adds docs for the snapshot endpoint. * Adds a stale mode and index feedback for snapshot saves. This gives folks a way to extract data even if the cluster has no leader. * Changes the internal format of a snapshot from zip to tgz. * Pulls in Raft fix to cancel inflight before a restore. * Pulls in new Raft restore interface. * Adds metadata to snapshot saves and a verify function. * Adds basic save and restore snapshot CLI commands. * Gets rid of tarball extensions and adds restore message. * Fixes an incidental bad link in the KV docs. * Adds documentation for the snapshot CLI commands. * Scuttle any request body when a snapshot is saved. * Fixes archive unit test error message check. * Allows for nil output writers in snapshot RPC handlers. * Renames hash list Decode to DecodeAndVerify. * Closes the client connection for snapshot ops. * Lowers timeout for restore ops. * Updates Raft vendor to get new Restore signature and integrates with Consul. * Bounces the leader's internal state when we do a restore.
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| layout | page_title | sidebar_current |
|---|---|---|
| docs | Commands: Snapshot | docs-commands-snapshot |
Consul Snapshot
Command: consul snapshot
The snapshot command has subcommands for saving and restoring the state of the
Consul servers for disaster recovery. These are atomic, point-in-time snapshots
which include key/value entries, service catalog, prepared queries, sessions, and
ACLs. This command is available in Consul 0.7.1 and later.
Snapshots are also accessible via the HTTP API.
Usage
Usage: consul snapshot <subcommand>
For the exact documentation for your Consul version, run consul snapshot -h to
view the complete list of subcommands.
Usage: consul snapshot <subcommand> [options] [args]
# ...
Subcommands:
restore Restores snapshot of Consul server state
save Saves snapshot of Consul server state
For more information, examples, and usage about a subcommand, click on the name of the subcommand in the sidebar or one of the links below:
Basic Examples
To create a snapshot and save it as a file called "backup.snap":
$ consul snapshot save backup.snap
Saved and verified snapshot to index 8419
To restore a snapshot from a file called "backup.snap":
$ consul snapshot restore backup.snap
Restored snapshot
For more examples, ask for subcommand help or view the subcommand documentation by clicking on one of the links in the sidebar.