» operator migrate

The operator migrate command copies data between storage backends to facilitate migrating Vault between configurations. It operates directly at the storage level, with no decryption involved. Keys in the destination storage backend will be overwritten. The source data is not modified, with the exception of a small lock key added during migration.

This is intended to be an offline operation to ensure data consistency, and Vault will not allow starting the server if a migration is in progress.

» Examples

Migrate all keys:

$ vault operator migrate -config migrate.hcl

2018-09-20T14:23:23.656-0700 [INFO ] copied key: data/core/seal-config
2018-09-20T14:23:23.657-0700 [INFO ] copied key: data/core/wrapping/jwtkey
2018-09-20T14:23:23.658-0700 [INFO ] copied key: data/logical/fd1bed89-ffc4-d631-00dd-0696c9f930c6/31c8e6d9-2a17-d98f-bdf1-aa868afa1291/archive/metadata
2018-09-20T14:23:23.660-0700 [INFO ] copied key: data/logical/fd1bed89-ffc4-d631-00dd-0696c9f930c6/31c8e6d9-2a17-d98f-bdf1-aa868afa1291/metadata/5kKFZ4YnzgNfy9UcWOzxxzOMpqlp61rYuq6laqpLQDnB3RawKpqi7yBTrawj1P
...

Migration is done in a consistent, sorted order. If the migration is halted or exits before completion (e.g. due to a connection error with a storage backend), it may be resumed from an arbitrary key prefix:

$ vault operator migrate -config migrate.hcl -start "data/logical/fd"

» Configuration

The operator migrate command uses a dedicated configuration file to specify the source and destination storage backends. The format of the storage stanzas is identical to that used to configure Vault, with the only difference being that two stanzas are required: storage_source and storage_destination.

storage_source "mysql" {
  username = "user1234"
  password = "secret123!"
  database = "vault"
}

storage_destination "consul" {
  address = "127.0.0.1:8500"
  path    = "vault"
}

» Usage

The following flags are available for the operator migrate command.

  • -config (string: <required>) - Path to the migration configuration file.

  • -start (string: "") - Migration starting key prefix. Only keys at or after this value will be copied.

  • -reset - Reset the migration lock. A lock file is added during migration to prevent starting the Vault server or another migration. The -reset option can be used to remove a stale lock file if present.