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docs vault Stanza - Agent Configuration docs-agent-configuration-vault The "vault" stanza configures Nomad's integration with HashiCorp's Vault. When configured, Nomad can create and distribute Vault tokens to tasks automatically.

vault Stanza

Placement **vault**

The vault stanza configures Nomad's integration with HashiCorp's Vault. When configured, Nomad can create and distribute Vault tokens to tasks automatically. For more information on the architecture and setup, please see the Nomad and Vault integration documentation.

vault {
  enabled = true
  address = "https://vault.company.internal:8200"
}

vault Parameters

  • address - (string: "https://vault.service.consul:8200") - Specifies the address to the Vault server. This must include the protocol, host/ip, and port given in the format protocol://host:port. If your Vault installation is behind a load balancer, this should be the address of the load balancer.

  • allow_unauthenticated (bool: true) - Specifies if users submitting jobs to the Nomad server should be required to provide their own Vault token, proving they have access to the policies listed in the job. This option should be disabled in an untrusted environment.

  • enabled (bool: false) - Specifies if the Vault integration should be activated.

  • task_token_ttl (string: "") - Specifies the TTL of created tokens when using a root token. This is specified using a label suffix like "30s" or "1h".

  • ca_file (string: "") - Specifies an optional path to the CA certificate used for Vault communication. If unspecified, this will fallback to the default system CA bundle, which varies by OS and version.

  • ca_path (string: "") - Specifies an optional path to a folder containing CA certificates to be used for Vault communication. If unspecified, this will fallback to the default system CA bundle, which varies by OS and version.

  • cert_file (string: "") - Specifies the path to the certificate used for Vault communication. If this is set then you need to also set tls_key_file.

  • key_file (string: "") - Specifies the path to the private key used for Vault communication. If this is set then you need to also set tls_cert_file.

  • tls_server_name (string: "") - Specifies an optional string used to set the SNI host when connecting to Vault via TLS.

  • tls_skip_verify (bool: false) - Specifies if SSL peer validation should be enforced.

    !> It is strongly discouraged to disable SSL verification. Instead, you should install a custom CA bundle and validate against it. Disabling SSL verification can allow an attacker to easily compromise your cluster.

  • token (string: "") - Specifies the parent Vault token to use to derive child tokens for jobs requesting tokens. Visit the Vault Integration documentation to see how to generate an appropriate token in Vault.

    !> It is strongly discouraged to place the token as a configuration parameter like this, since the token could be checked into source control accidentally. Users should set the VAULT_TOKEN environment variable when starting the agent instead.

vault Examples

The following examples only show the vault stanzas. Remember that the vault stanza is only valid in the placements listed above.

Custom Address

This example shows using a custom Vault address:

vault {
  enabled = true
  address = "https://vault.company.internal:8200"
}

TLS Configuration

This example shows utilizing a custom CA bundle and key to authenticate between Nomad and Vault:

vault {
  enabled         = true
  ca_path     = "/etc/certs/ca"
  cert_file   = "/var/certs/vault.crt"
  key_file    = "/var/certs/vault.key"
  tls_server_name = "nomad.service.consul"
}