Java Vault Connector

Java Vault Connector is a connector library for Vault by Hashicorp written in Java. The connector allows simple usage of Vault's secret store in own applications.

Features:

• HTTP(S) backend connector
  • Ability to provide or enforce custom CA certificate
  • Optional initialization from environment variables
• Authorization methods
  • Token
  • Username/Password
  • AppRole (register and authenticate)
• Tokens
  • Creation and lookup of tokens and token roles
  • TokenBuilder for speaking creation of complex configurations
• Secrets
  • Read secrets
  • Write secrets
  • List secrets
  • Delete secrets
  • Renew/revoke leases
  • Raw secret content or JSON decoding
  • SQL secret handling
  • KV v1 and v2 support
• Connector Factory with builder pattern
• Tested against Vault 1.2 to 1.18

Maven Artifact

<dependency>
    <groupId>de.stklcode.jvault</groupId>
    <artifactId>jvault-connector</artifactId>
    <version>1.4.0</version>
</dependency>

Usage Examples

Initialization

// Instantiate using builder pattern style factory (TLS enabled by default)
VaultConnector vault = HTTPVaultConnector.builder()
 .withHost("127.0.0.1")
 .withPort(8200)
 .withTLS()
 .build();

// Instantiate with custom SSL context
VaultConnector vault = HTTPVaultConnector.builder("https://example.com:8200/v1/")
 .withTrustedCA(Paths.get("/path/to/CA.pem"))
 .build();

// Initialization from environment variables
VaultConnector vault = HTTPVaultConnector.builder()
 .fromEnv()
 .build();

Authentication

// Authenticate with token.
vault.authToken("01234567-89ab-cdef-0123-456789abcdef");

// Authenticate with username and password.
vault.authUserPass("username", "p4ssw0rd");

// Authenticate with AppRole (secret - 2nd argument - is optional).
vault.authAppRole("01234567-89ab-cdef-0123-456789abcdef", "fedcba98-7654-3210-fedc-ba9876543210");

Secret read & write

// Retrieve secret (prefix "secret/" assumed, use read() to read arbitrary paths)
String secret = vault.read("secret/some/key").get("value", String.class);

// Complex secret.
Map<String, Object> secretData = vault.read("secret/another/key").getData();

// Write simple secret.
vault.write("secret/new/key", "secret value");

// Write complex data.
Map<String, Object> map = ...;
vault.write("path/to/write", map);

// Delete secret.
vault.delete("path/to/delete");

Token and role creation

// Create token using TokenBuilder
Token token = Token.builder()
                   .withId("token id")
                   .withDisplayName("new test token")
                   .withPolicies("pol1", "pol2")
                   .build();
vault.createToken(token);

// Create AppRole credentials
vault.createAppRole("testrole", policyList);
AppRoleSecretResponse secret = vault.createAppRoleSecret("testrole");

Links

Project Page

JavaDoc API

License

The project is licensed under Apache License 2.0.