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kong.vault

This module can be used to resolve, parse, and verify vault references.

kong.vault.is_reference(reference)

Checks if the passed in reference looks like a reference. Valid references start with {vault:// and end with }.

If you need more thorough validation, use kong.vault.parse_reference.

Parameters

reference (string): reference to check

Returns

boolean: true is the passed in reference looks like a reference, otherwise false

Usage

kong.vault.is_reference("{vault://env/key}") -- true
kong.vault.is_reference("not a reference")   -- false

kong.vault.parse_reference(reference)

Parses and decodes the passed in reference and returns a table containing its components.

Given a following resource:

 "{vault://env/cert/key?prefix=SSL_#1}"

This function will return following table:

 {
   name     = "env",  -- name of the Vault entity or Vault strategy
   resource = "cert", -- resource where secret is stored
   key      = "key",  -- key to lookup if the resource is secret object
   config   = {       -- if there are any config options specified
     prefix = "SSL_"
   },
   version  = 1       -- if the version is specified
 }

Parameters

reference (string): reference to parse

Returns

table|nil: a table containing each component of the reference, or nil on error
string|nil: error message on failure, otherwise nil

Usage

local ref, err = kong.vault.parse_reference("{vault://env/cert/key?prefix=SSL_#1}") -- table

kong.vault.get(reference)

Resolves the passed in reference and returns the value of it.

Parameters

reference (string): reference to resolve

Returns

string|nil: resolved value of the reference
string|nil: error message on failure, otherwise nil

Usage

local value, err = kong.vault.get("{vault://env/cert/key}")