Vault does NOT store any data encrypted via the transit/encrypt endpoint. The output you received is the ciphertext. You can store this ciphertext at the desired location (e.g. MySQL database) or pass it to another application.

Batch tokens are generally used for encrypting data because they are lightweight and scalable and also include enough information to use with Vault.

When reading a dynamic secret, such as via vault read, Vault always returns a lease_id. This is the ID used with commands such as vault lease renew and vault lease revoke to manage the lease of the secret.

vault lease lookup

Usage: vault lease < subcommand > [options] [args]

This command groups subcommands for interacting with leases. Users can revoke or renew leases.

Renew a lease:

$ vault lease renew database/creds/readonly/2f6a614c...

Revoke a lease:

$ vault lease revoke database/creds/readonly/2f6a614c...

Subcommands:

renew Renews the lease of a secret

revoke Revokes leases and secrets

Reference link:- https://www.vaultproject.io/docs/concepts/lease

By default, terraform init downloads plugins into a subdirectory of the working directory, .terraform/plugins, so that each working directory is self-contained.

If a resource successfully creates but fails during provisioning, Terraform will error and mark the resource as " tainted " . A resource that is tainted has been physically created, but can ' t be considered safe to use since provisioning failed.

Terraform also does not automatically roll back and destroy the resource during the apply when the failure happens, because that would go against the execution plan: the execution plan would ' ve said a resource will be created, but does not say it will ever be deleted.

It is important to consider that Terraform reads from data sources during the plan phase and writes the result into the plan. For something like a Vault token which has an explicit TTL, the apply must be run before the data, or token, in this case, expires, otherwise, Terraform will fail during the apply phase.

The Transit engine supports the versioning of keys. Key versions that are earlier than a key ' s specified min_decryption_version gets archived, and the rest of the key versions belong to the working set. This is a performance consideration to keep key loading fast, as well as a security consideration: by disallowing decryption of old versions of keys, found ciphertext corresponding to obsolete (but sensitive) data can not be decrypted by most users, but in an emergency, the min_decryption_version can be moved back to allow for legitimate decryption.

Reference link:- https://www.vaultproject.io/docs/secrets/transit

When assigning a value to an argument, it must be enclosed in quotes ( " ... " ) unless it is being generated programmatically.

Before Vault can be used, it must be initialized and unsealed. This screen indicates that Vault has not been initialized yet and is offering you a way to do so.

The terraform init command is used to initialize a working directory containing Terraform configuration files. This is the first command that should be run after writing a new Terraform configuration or cloning an existing one from version control. It is safe to run this command multiple times.