Spring Boot CLI provides Spring Boot command line features for
+Spring Cloud. You can write Groovy scripts to run Spring Cloud component applications
+(e.g. @EnableEurekaServer). You can also easily do things like encryption and decryption to support Spring Cloud
+Config clients with secret configuration values.
|
+ Note
+ |
++Spring Cloud is released under the non-restrictive Apache 2.0 license. If you would like to contribute to this section of the documentation or if you find an error, please find the source code and issue trackers in the project at github. + | +
Installation
+To install, make +sure you have +Spring Boot CLI +(1.3.5 or better):
+$ spring version +Spring CLI v1.3.5.RELEASE+
E.g. for SDKMan users
+$ sdk install springboot 1.3.5.RELEASE
+$ sdk use springboot 1.3.5.RELEASE
+and install the Spring Cloud plugin:
+$ mvn install
+$ spring install org.springframework.cloud:spring-cloud-cli:1.1.2.RELEASE
+|
+ Important
+ |
++Prerequisites: to use the encryption and decryption features +you need the full-strength JCE installed in your JVM (it’s not there by default). +You can download the "Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files" +from Oracle, and follow instructions for installation (essentially replace the 2 policy files +in the JRE lib/security directory with the ones that you downloaded). + | +
Writing Groovy Scripts and Running Applications
+Spring Cloud CLI has support for most of the Spring Cloud declarative
+features, such as the @Enable* class of annotations. For example,
+here is a fully functional Eureka server
@EnableEurekaServer
+class Eureka {}
+which you can run from the command line like this
+$ spring run app.groovy+
To include additional dependencies, often it suffices just to add the
+appropriate feature-enabling annotation, e.g. @EnableConfigServer,
+@EnableOAuth2Sso or @EnableEurekaClient. To manually include a
+dependency you can use a @Grab with the special "Spring Boot" short
+style artifact co-ordinates, i.e. with just the artifact ID (no need
+for group or version information), e.g. to set up a client app to
+listen on AMQP for management events from the Spring CLoud Bus:
@Grab('spring-cloud-starter-bus-amqp')
+@RestController
+class Service {
+ @RequestMapping('/')
+ def home() { [message: 'Hello'] }
+}
+Encryption and Decryption
+The Spring Cloud CLI comes with an "encrypt" and a "decrypt" +command. Both accept arguments in the same form with a key specified +as a mandatory "--key", e.g.
+$ spring encrypt mysecret --key foo +682bc583f4641835fa2db009355293665d2647dade3375c0ee201de2a49f7bda +$ spring decrypt --key foo 682bc583f4641835fa2db009355293665d2647dade3375c0ee201de2a49f7bda +mysecret+
To use a key in a file (e.g. an RSA public key for encyption) prepend +the key value with "@" and provide the file path, e.g.
+$ spring encrypt mysecret --key @${HOME}/.ssh/id_rsa.pub
+AQAjPgt3eFZQXwt8tsHAVv/QHiY5sI2dRcR+...
+