Vault-Fernet-Locksmith

Locksmith periodically rotates Fernet Keys in Hashicorp's Vault(s). It is intended to link keystone (openstack) and Vault for fernet keys management.

Locksmith implements a lock feature using Consul to make sure that only one instance of locksmith is running.

Usage:
  vault-fernet-locksmith [command]

Available Commands:
  bootstrap   Generate first set of fernet keys in Vault(s)
  delete      Delete fernet keys secret in Vault(s)
  help        Help about any command
  print       Print secrets stored in Vault(s)
  rotate      Force a fernet keys rotation
  version     Print version and exit
  watch       Watch keys in Vault(s) and rotate them when needed

Flags:
  -c, --config string             configuration file
  -h, --help                      help for vault-fernet-locksmith
      --secret-path string        path to the fernet-keys secret in primary Vault (default "secret/fernet-keys")
      --vault-address string      Vault address (default "https://127.0.0.1:8500")
      --vault-proxy string        proxy URL used to contact Vault
      --vault-token string        Vault token used to authenticate with Vault
      --vault-token-file string   file containing the vault token used to authenticate with Vault
  -v, --verbosity string          log level (debug, info, warn, error, fatal, panic) (default "info")

Use "vault-fernet-locksmith [command] --help" for more information about a command.

Bootstrap

Fernet keys are stored in vault as a single secret (default secret/fernet-keys).

creation_time: 1516626452
keys:
- -_Ljq7IAx57gtPPuZloOKRpt_4LoIZ54awQs6-vzRXs=
- awYgumbNGJpu5sj1adgbVPLVOAey6o5qlPvaJ8c-DRQ=
- dvhnpz2MlYwLWbZgueFSjuuecTbCvOF8siKGQVAjVno=
period: 3600
ttl: 120s

You can use the bootstrap command to write the first secret to the Vault(s).

Configuration

vault-fernet-locksmith accepts a yaml or json configuration file (See config.example.yaml).

For minimal configuration you can set flags or environment variables:

command line option	environment variable	default value
--vault-address	VFL_VAULT_ADDRESS	""
--vault-proxy	VFL_VAULT_PROXY	""
--vault-token	VFL_VAULT_VAULT_TOKEN	""
--vault-token-file	VFL_VAULT_TOKEN_FILE	""
--secret-path	VFL_SECRETPATH	"secret/fernet-keys"
--ttl	VFL_TTL	120
--health	VFL_HEALTH	false
--health-period	VFL_HEALTHPERIOD	120
--consul-address	VFL_CONSUL_ADDRESS	""
--consul-proxy	VFL_CONSUL_PROXY	""
--consul-token	VFL_CONSUL_TOKEN	""
--consul-token-file	VFL_CONSUL TOKENFILE	""
--lock	VFL_CONSUL_LOCK	false
--lock-key	VFL_CONSUL_LOCKKEY	"locks/locksmith/.lock"
--verbosity	VFL_VERBOSITY	"info"

Build

A simple make will build the project.