spring-cloud/spring-cloud-bindings

A library that exposes a rich Java language-binding and auto-configuration for CNB Bindings

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Aug 28, 2026

updated

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README

Spring Cloud Bindings

The Spring Cloud Bindings library exposes a rich Java language binding for the Kubernetes Service Binding Specification. In addition, if opted-in, it configures Spring Boot application configuration properties appropriate for the type of binding encountered.

Features

Java 17
Spring Boot 3

For Spring Boot 2 compatibility, please have a look at the 1.x releases.

Library Usage

While less used, explicit binding access can be achieved through the Bindings type.

List<Binding> bindings = new Bindings().filterBindings("MySQL");
if (bindings.size() > 0) {
    Map<String, String> secret = bindings.get(0).getSecret();

    MariaDbDataSource dataSource = new MariaDbDataSource();
    dataSource.setServerName(secret.get("host"));
    dataSource.setPort(Integer.parseInt(secret.get("port")));
    dataSource.setDatabaseName(secret.get("database"));
    dataSource.setUserName(secret.get("username"));
    dataSource.setPassword(secret.get("password"));

    return dataSource;
}

Spring Boot Configuration

The more common usage of the library is opt-in automatic Spring Boot configuration. Setting the org.springframework.cloud.bindings.boot.enable=true System Property results in the following:

Adds a PropertySource with a flattened representation (k8s.bindings.{name}.*) of the bindings.
Adds a PropertySource with binding-specific Spring Boot configuration properties.

Auto-Configurations

Each auto-configuration is triggered by the type of binding. Each auto-configuration can be disabled using a System Property specific to that type and defaults to enable. Auto-configuration is disabled by default and can be enabled by setting the org.springframework.cloud.bindings.boot.enable System Property to true.

{<key>} indicates that the value is the contents of the secret with the given key.

ActiveMQ Artemis

Type: artemis Disable Property: org.springframework.cloud.bindings.boot.artemis.enable

Properties

Property	Value
`spring.artemis.broker-url`	`{broker-url}`
`spring.artemis.mode`	`{mode}`
`spring.artemis.password`	`{password}`
`spring.artemis.user`	`{user}`
`spring.artemis.embedded.cluster-password`	`{embedded.cluster-password}`
`spring.artemis.embedded.data-directory`	`{embedded.data-directory}`
`spring.artemis.embedded.enabled`	`{embedded.enabled}`
`spring.artemis.embedded.persistent`	`{embedded.persistent}`
`spring.artemis.embedded.queues`	`{embedded.queues}`
`spring.artemis.embedded.server-id`	`{embedded.server-id}`
`spring.artemis.embedded.topics`	`{embedded.topics}`
`spring.artemis.pool.block-if-full`	`{pool.block-if-full}`
`spring.artemis.pool.block-if-full-timeout`	`{pool.block-if-full-timeout}`
`spring.artemis.pool.enabled`	`{pool.enabled}`
`spring.artemis.pool.idle-timeout`	`{pool.idle-timeout}`
`spring.artemis.pool.max-connections`	`{pool.max-connections}`
`spring.artemis.pool.max-sessions-per-connection`	`{pool.max-sessions-per-connection}`
`spring.artemis.pool.time-between-expiration-check`	`{pool.time-between-expiration-check}`
`spring.artemis.pool.use-anonymous-producers`	`{pool.use-anonymous-producers}`

Cassandra

Type: cassandra Disable Property: org.springframework.cloud.bindings.boot.cassandra.enable

Properties

Property	Value
`spring.cassandra.cluster-name`	`{cluster-name}`
`spring.cassandra.compression`	`{compression}`
`spring.cassandra.contact-points`	`{contact-points}`
`spring.cassandra.keyspace-name`	`{keyspace-name}`
`spring.cassandra.password`	`{password}`
`spring.cassandra.port`	`{port}`
`spring.cassandra.ssl`	`{ssl}`
`spring.cassandra.username`	`{username}`
`spring.cassandra.request.throttler.drain-interval`	`{request.throttler.drain-interval}`
`spring.cassandra.request.throttler.max-concurrent-requests`	`{request.throttler.max-concurrent-requests}`
`spring.cassandra.request.throttler.max-queue-size`	`{request.throttler.max-queue-size}`
`spring.cassandra.request.throttler.max-requests-per-second`	`{request.throttler.max-requests-per-second}`

Couchbase

Type: couchbase Disable Property: org.springframework.cloud.bindings.boot.couchbase.enable

Properties

Property	Value
`spring.couchbase.connection-string`	`{connection-string}`
`spring.data.couchbase.bucket-name`	`{bucket-name}`
`spring.couchbase.password`	`{password}`
`spring.couchbase.username`	`{username}`

DB2 RDBMS

Type: db2 Disable Property: org.springframework.cloud.bindings.boot.db2.enable

Property	Value
`spring.datasource.driver-class-name`	`com.ibm.db2.jcc.DB2Driver`
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`{jdbc-url}` or if not set then `jdbc:db2://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:db2://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

Elasticsearch

Type: elasticsearch Disable Property: org.springframework.cloud.bindings.boot.elasticsearch.enable

Properties

Property	Value
`spring.elasticsearch.password`	`{password}`
`spring.elasticsearch.uris`	`{uris}`
`spring.elasticsearch.username`	`{username}`

Kafka

Type: kafka Disable Property: org.springframework.cloud.bindings.boot.kafka.enable

Property	Value
`spring.kafka.bootstrap-servers`	`{bootstrap-servers}`
`spring.kafka.consumer.bootstrap-servers`	`{consumer.bootstrap-servers}`
`spring.kafka.producer.bootstrap-servers`	`{producer.bootstrap-servers}`
`spring.kafka.streams.bootstrap-servers`	`{streams.bootstrap-servers}`

LDAP

Type: ldap Disable Property: org.springframework.cloud.bindings.boot.ldap.enable

Property	Value
`spring.ldap.base`	`{base}`
`spring.ldap.password`	`{password}`
`spring.ldap.urls`	`{urls}`
`spring.ldap.username`	`{username}`

MongoDB

Type: mongodb Disable Property: org.springframework.cloud.bindings.boot.mongodb.enable

Property	Value
`spring.data.mongodb.authentication-database`	`{authentication-database}`
`spring.data.mongodb.database`	`{database}`
`spring.data.mongodb.gridfs.database"`	`{grid-fs-database}`
`spring.data.mongodb.host`	`{host}`
`spring.data.mongodb.password`	`{password}`
`spring.data.mongodb.port`	`{port}`
`spring.data.mongodb.uri`	`{uri}`
`spring.data.mongodb.username`	`{username}`

MySQL RDBMS

Type: mysql Disable Property: org.springframework.cloud.bindings.boot.mysql.enable

Property	Value
`spring.datasource.driver-class-name`	`org.mariadb.jdbc.Driver` or `com.mysql.cj.jdbc.Driver` depending on classpath
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`{jdbc-url}` or if not set then `jdbc:mysql://{host}:{port}/{database}` or `jdbc:mariadb://{host}:{port}/{database}` depending on classpath (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:mysql://{host}:{port}/{database}` or `r2dbc:mariadb//{host}:{port}/{database}` depending on classpath (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

Note: Libraries on the classpath are examined for the purpose of evaluating the appropriate jdbc and r2dbc URLs. The existence of both MySQL and MariaDB libraries on the classpath is not supported and may lead to non-deterministic results.

Neo4J

Type: neo4j Disable Property: org.springframework.cloud.bindings.boot.neo4j.enable

Properties

Property	Value
`spring.neo4j.uri`	`{uri}`
`spring.neo4j.authentication.username`	`{username}`
`spring.neo4j.authentication.password`	`{password}`

Oracle RDBMS

Type: oracle Disable Property: org.springframework.cloud.bindings.boot.oracle.enable

Property	Value
`spring.datasource.driver-class-name`	`oracle.jdbc.OracleDriver`
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`{jdbc-url}` or if not set then `jdbc:oracle://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:oracle://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

PostgreSQL RDBMS

Type: postgresql Disable Property: org.springframework.cloud.bindings.boot.postgresql.enable

Property	Value
`spring.datasource.driver-class-name`	`org.postgresql.Driver`
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`{jdbc-url}` or if not set then `jdbc:postgresql://{host}:{port}/{database}`. If a binding for `{sslmode}`, `{sslrootcert}`, or `{options}` are set, the value is appended as properties to the generated URL (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:postgresql://{host}:{port}/{database}`. If a binding for `{sslmode}`, `{sslrootcert}`, or `{options}` are set, the value is appended as properties to the generated URL (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

RabbitMQ

Type: rabbitmq Disable Property: org.springframework.cloud.bindings.boot.rabbitmq.enable

Property	Value
`spring.rabbitmq.addresses`	`{addresses}`
`spring.rabbitmq.host`	`{host}`
`spring.rabbitmq.password`	`{password}`
`spring.rabbitmq.port`	`{port}`
`spring.rabbitmq.username`	`{username}`
`spring.rabbitmq.virtual-host`	`{virtual-host}`

Redis

Type: redis Disable Property: org.springframework.cloud.bindings.boot.redis.enable

Properties

Property	Value
`spring.data.redis.client-name`	`{client-name}`
`spring.data.redis.cluster.max-redirects`	`{cluster.max-redirects}`
`spring.data.redis.cluster.nodes`	`{cluster.nodes}`
`spring.data.redis.database`	`{database}`
`spring.data.redis.host`	`{host}`
`spring.data.redis.password`	`{password}`
`spring.data.redis.port`	`{port}`
`spring.data.redis.sentinel.master`	`{sentinel.master}`
`spring.data.redis.sentinel.nodes`	`{sentinel.nodes}`
`spring.data.redis.ssl`	`{ssl}`
`spring.data.redis.url`	`{url}`

SAP Hana

Type: hana Disable Property: org.springframework.cloud.bindings.boot.hana.enable

Property	Value
`spring.datasource.driver-class-name`	`com.sap.db.jdbc.Driver`
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`{jdbc-url}` or if not set then `jdbc:sap://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:sap://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

SCS Config Server

Type: config Disable Property: org.springframework.cloud.bindings.boot.config.enable

Property	Value
`spring.cloud.config.uri`	`{uri}`
`spring.cloud.config.client.oauth2.clientId`	`{client-id}`
`spring.cloud.config.client.oauth2.clientSecret`	`{client-secret}`
`spring.cloud.config.client.oauth2.accessTokenUri`	`{access-token-uri}`
`spring.cloud.config.tls.enabled`	`true` when `{tls.crt}` and `{tls.key}` are set
`spring.cloud.config.tls.key-store`	derived from `{tls.crt}` and `{tls.key}`
`spring.cloud.config.tls.key-store-type`	`"PKCS12"` when `{tls.crt}` and `{tls.key}` are set
`spring.cloud.config.tls.key-store-password`	random string when `{tls.crt}` and `{tls.key}` are set
`spring.cloud.config.tls.key-alias`	`"config"` when `{tls.crt}` and `{tls.key}` are set
`spring.cloud.config.tls.key-password`	`""` when `{tls.crt}` and `{tls.key}` are set
`spring.cloud.config.tls.trust-store`	derived from `{ca.crt}` when it is set
`spring.cloud.config.tls.trust-store-type`	`"PKCS12"` when `{ca.crt}` is set
`spring.cloud.config.tls.trust-store-password`	random string when `{ca.crt}` is set

SCS Eureka

Type: eureka Disable Property: org.springframework.cloud.bindings.boot.eureka.enable

Property	Value
`eureka.client.oauth2.client-id`	`{client-id}`
`eureka.client.oauth2.access-token-uri`	`{access-token-uri}`
`eureka.client.region`	`default`
`eureka.client.serviceUrl.defaultZone`	`{uri}/eureka/`
`eureka.client.tls.enabled`	`true` when `{ca.crt}` is set
`eureka.client.tls.trust-store`	derived from `{ca.crt}`
`eureka.client.tls.trust-store-type`	`"PKCS12"` when `{ca.crt}` is set
`eureka.client.tls.trust-store-password`	random string when `{ca.crt}` is set
`eureka.instance.preferIpAddress`	`true` when `{ca.crt}` is set¹
`eureka.client.tls.key-alias`	`"eureka"` when `{ca.crt}`, `{tls.crt}` and `{tls.key}` are set
`eureka.client.tls.key-store`	derived from `{tls.crt}` and `{tls.key}`
`eureka.client.tls.key-store-type`	`"PKCS12"` when `{ca.crt}`, `{tls.crt}` and `{tls.key}` are set
`eureka.client.tls.key-store-password`	random string when `{ca.crt}`, `{tls.crt}` and `{tls.key}` are set
`eureka.client.tls.key-password`	`""` when `{ca.crt}`, `{tls.crt}` and `{tls.key}` are set

Spring Security OAuth2

Type: oauth2 Disable Property: org.springframework.cloud.bindings.boot.oauth2.enable

Property	Value
`spring.security.oauth2.client.registration.{name}.client-id`	`{client-id}`
`spring.security.oauth2.client.registration.{name}.client-secret`	`{client-secret}`
`spring.security.oauth2.client.registration.{name}.provider`	`{provider}`
`spring.security.oauth2.client.registration.{name}.client-name`	`{client-name}`
`spring.security.oauth2.client.registration.{name}.client-authentication-method`	`{client-authentication-method}`
`spring.security.oauth2.client.registration.{name}.authorization-grant-type`	`{authorization-grant-type}` or if not set then `{authorization-grant-types}` if it contains only one value (comma-separated)
`spring.security.oauth2.client.registration.{name}.redirect-uri`	`{redirect-uri}` or if not set then `{redirect-uris}` if it contains only one value (comma-separated)
`spring.security.oauth2.client.registration.{name}.scope`	`{scope}`
`spring.security.oauth2.client.provider.{provider}.issuer-uri`	`{issuer-uri}`
`spring.security.oauth2.client.provider.{provider}.authorization-uri`	`{authorization-uri}`
`spring.security.oauth2.client.provider.{provider}.token-uri`	`{token-uri}`
`spring.security.oauth2.client.provider.{provider}.user-info-uri`	`{user-info-uri}`
`spring.security.oauth2.client.provider.{provider}.user-info-authentication-method`	`{user-info-authentication-method}`
`spring.security.oauth2.client.provider.{provider}.jwk-set-uri`	`{jwk-set-uri}`
`spring.security.oauth2.client.provider.{provider}.user-name-attribute`	`{user-name-attribute}`

SQLServer RDBMS

Type: sqlserver Disable Property: org.springframework.cloud.bindings.boot.sqlserver.enable

Property	Value
`spring.datasource.driver-class-name`	`com.microsoft.sqlserver.jdbc.SQLServerDriver`
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`jdbc:sqlserver://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:sqlserver://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

Vault

Type: vault Disable Property: org.springframework.cloud.bindings.boot.vault.enable

Any Provider:

Property	Value
`spring.cloud.vault.authentication`	`{authentication-method}`
`spring.cloud.vault.namespace`	`{namespace}`
`spring.cloud.vault.uri`	`{uri}`

If {authentication-method} is equal to approle:

Property	Value
`spring.cloud.vault.app-role.app-role-path`	`{app-role-path}`
`spring.cloud.vault.app-role.role-id`	`{role-id}`
`spring.cloud.vault.app-role.role`	`{role}`
`spring.cloud.vault.app-role.secret-id`	`{secret-id}`

If {authentication-method} is equal to aws_ec2:

Property	Value
`spring.cloud.vault.aws-ec2.aws-ec2-path`	`{aws-ec2-path}`
`spring.cloud.vault.aws-ec2.identity-document`	`{aws-ec2-instance-identity-document}`
`spring.cloud.vault.aws-ec2.nonce`	`{nonce}`
`spring.cloud.vault.aws-ec2.role`	`{role}`

If {authentication-method} is equal to aws_iam:

Property	Value
`spring.cloud.vault.aws-iam.aws-path`	`{aws-path}`
`spring.cloud.vault.aws-iam.endpoint-uri`	`{aws-sts-endpoint-uri}`
`spring.cloud.vault.aws-iam.role`	`{role}`
`spring.cloud.vault.aws-iam.server-name`	`{aws-iam-server-name}`

If {authentication-method} is equal to azure_msi:

Property	Value
`spring.cloud.vault.azure-msi.azure-path`	`{azure-path}`
`spring.cloud.vault.azure-msi.role`	`{role}`
`spring.cloud.vault.azure-msi.metadata-service`	`{metadata-service}`
`spring.cloud.vault.azure-msi.identity-token-service`	`{identity-token-service}`

If {authentication-method} is equal to cert:

Property	Value
`spring.cloud.vault.ssl.cert-auth-path`	`{cert-auth-path}`
`spring.cloud.vault.ssl.key-store-password`	`{key-store-password}`
`spring.cloud.vault.ssl.key-store`	`${SERVICE_BINDING_ROOT}/{name}/keystore.jks`
`spring.cloud.vault.ssl.trust-store`	`${SERVICE_BINDING_ROOT}/{name}/truststore.jks`
`spring.cloud.vault.ssl.trust-store-password`	`{trust-store-password}`

If {authentication-method} is equal to cubbyhole:

Property	Value
`spring.cloud.vault.token`	`{token}`

If {authentication-method} is equal to gcp_gce:

Property	Value
`spring.cloud.vault.gcp-gce.gcp-path`	`{gcp-path}`
`spring.cloud.vault.gcp-gce.role`	`{role}`
`spring.cloud.vault.gcp-gce.service-account`	`{gcp-service-account}`

If {authentication-method} is equal to gcp_iam:

Property	Value
`spring.cloud.vault.gcp-iam.credentials.encoded-key`	`{encoded-key}`
`spring.cloud.vault.gcp-iam.credentials.location`	`${SERVICE_BINDING_ROOT}/{name}/credentials.json`
`spring.cloud.vault.gcp-iam.gcp-path`	`{gcp-path}`
`spring.cloud.vault.gcp-iam.jwt-validity`	`{jwt-validity}`
`spring.cloud.vault.gcp-iam.project-id`	`{gcp-project-id}`
`spring.cloud.vault.gcp-iam.role`	`{role}`
`spring.cloud.vault.gcp-iam.service-account`	`{gcp-service-account}` Spring Boot 2
`spring.cloud.vault.gcp-iam.service-account-id`	`{gcp-service-account}` Spring Boot 3

If {authentication-method} is equal to kubernetes:

Property	Value
`spring.cloud.vault.kubernetes.role`	`{role}`
`spring.cloud.vault.kubernetes.kubernetes-path`	`{kubernetes-path}`
`spring.cloud.vault.kubernetes.kubernetes-service-account-token-file`	`{kubernetes-service-account-token-file}` Spring Boot 3

If {authentication-method} is equal to token:

Property	Value
`spring.cloud.vault.token`	`{token}`

Wavefront

Type: wavefront Disable Property: org.springframework.cloud.bindings.boot.wavefront.enable

Property	Value
`management.wavefront.api-token`	`{api-token}`
`management.wavefront.uri`	`{uri}`

Extending Spring Boot Configuration

Consumers can extend the BindingSpecificEnvironmentPostProcessor with support for additional bindings by registering additional implementations of the BindingsPropertiesProcessor.

Within the process method, custom processors should make desired modifications to the application properties, using the contents of the bindings to compute property values as appropriate. Custom processors are strongly encouraged to use the type of each binding to filter for bindings intended for that processor.

Below is an example that processes a single binding of type myservice. If such a binding exists this processor sets my.service.enabled=true and sets my.service.uri to the value of uri found in the binding secret.

package com.example;


import org.springframework.cloud.bindings.Binding;
import org.springframework.cloud.bindings.Bindings;
import org.springframework.cloud.bindings.boot.BindingsPropertiesProcessor;
import org.springframework.core.env.Environment;

import java.util.List;
import java.util.Map;

public final class MyServiceBindingsPropertiesProcessor implements BindingsPropertiesProcessor {

    public static final String TYPE = "myservice";

    @Override
    public void process(Environment environment, Bindings bindings, Map<String, Object> properties) {
        if (!environment.getProperty("com.example.bindings.myservice.enable", Boolean.class, true)) {
            return;
        }
        List<Binding> myBindings = bindings.filterBindings(TYPE);
        if (myBindings.size() == 0) {
            return;
        }
        properties.put("my.service.uri", myBindings.get(0).getSecret().get("uri"));
        properties.put("my.service.enabled", true);
    }

}

These lines from the above example allow users to set com.example.bindings.myservice.enable=false to disable the processor entirely:

        if (!environment.getProperty("com.example.bindings.myservice.enable", Boolean.class, true)) {
            return;
        }

You must add an entry in META_INF/spring.factories so that your custom processor can be discovered.

org.springframework.cloud.bindings.boot.BindingsPropertiesProcessor=com.example.MyServiceBindingsPropertiesProcessor

License

This buildpack is released under version 2.0 of the Apache License.

Note that eureka.instance.perferIpAddress will not be overwritten by the Eureka auto-configuration if it is already set in the environment. Applications wishing to set an explicit endpoint with eureka.instance.host can set eureka.instance.perferIpAddress to false and it will not be overwritten. ↩

Contributors

nebhale

69 commits

ekcasey

41 commits

anthonydahanne

23 commits

pivotal-david-osullivan

7 commits

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spring-cloud/spring-cloud-bindings

A library that exposes a rich Java language-binding and auto-configuration for CNB Bindings

stars

157

commits

Java

primary language

Aug 28, 2026

updated

Browse cluster: Cloud Native Buildpacks & JVM →

README

Spring Cloud Bindings

Features

Java 17
Spring Boot 3

For Spring Boot 2 compatibility, please have a look at the 1.x releases.

Library Usage

While less used, explicit binding access can be achieved through the Bindings type.

List<Binding> bindings = new Bindings().filterBindings("MySQL");
if (bindings.size() > 0) {
    Map<String, String> secret = bindings.get(0).getSecret();

    MariaDbDataSource dataSource = new MariaDbDataSource();
    dataSource.setServerName(secret.get("host"));
    dataSource.setPort(Integer.parseInt(secret.get("port")));
    dataSource.setDatabaseName(secret.get("database"));
    dataSource.setUserName(secret.get("username"));
    dataSource.setPassword(secret.get("password"));

    return dataSource;
}

Spring Boot Configuration

The more common usage of the library is opt-in automatic Spring Boot configuration. Setting the org.springframework.cloud.bindings.boot.enable=true System Property results in the following:

Adds a PropertySource with a flattened representation (k8s.bindings.{name}.*) of the bindings.
Adds a PropertySource with binding-specific Spring Boot configuration properties.

Auto-Configurations

{<key>} indicates that the value is the contents of the secret with the given key.

ActiveMQ Artemis

Type: artemis Disable Property: org.springframework.cloud.bindings.boot.artemis.enable

Properties

Property	Value
`spring.artemis.broker-url`	`{broker-url}`
`spring.artemis.mode`	`{mode}`
`spring.artemis.password`	`{password}`
`spring.artemis.user`	`{user}`
`spring.artemis.embedded.cluster-password`	`{embedded.cluster-password}`
`spring.artemis.embedded.data-directory`	`{embedded.data-directory}`
`spring.artemis.embedded.enabled`	`{embedded.enabled}`
`spring.artemis.embedded.persistent`	`{embedded.persistent}`
`spring.artemis.embedded.queues`	`{embedded.queues}`
`spring.artemis.embedded.server-id`	`{embedded.server-id}`
`spring.artemis.embedded.topics`	`{embedded.topics}`
`spring.artemis.pool.block-if-full`	`{pool.block-if-full}`
`spring.artemis.pool.block-if-full-timeout`	`{pool.block-if-full-timeout}`
`spring.artemis.pool.enabled`	`{pool.enabled}`
`spring.artemis.pool.idle-timeout`	`{pool.idle-timeout}`
`spring.artemis.pool.max-connections`	`{pool.max-connections}`
`spring.artemis.pool.max-sessions-per-connection`	`{pool.max-sessions-per-connection}`
`spring.artemis.pool.time-between-expiration-check`	`{pool.time-between-expiration-check}`
`spring.artemis.pool.use-anonymous-producers`	`{pool.use-anonymous-producers}`

Cassandra

Type: cassandra Disable Property: org.springframework.cloud.bindings.boot.cassandra.enable

Properties

Property	Value
`spring.cassandra.cluster-name`	`{cluster-name}`
`spring.cassandra.compression`	`{compression}`
`spring.cassandra.contact-points`	`{contact-points}`
`spring.cassandra.keyspace-name`	`{keyspace-name}`
`spring.cassandra.password`	`{password}`
`spring.cassandra.port`	`{port}`
`spring.cassandra.ssl`	`{ssl}`
`spring.cassandra.username`	`{username}`
`spring.cassandra.request.throttler.drain-interval`	`{request.throttler.drain-interval}`
`spring.cassandra.request.throttler.max-concurrent-requests`	`{request.throttler.max-concurrent-requests}`
`spring.cassandra.request.throttler.max-queue-size`	`{request.throttler.max-queue-size}`
`spring.cassandra.request.throttler.max-requests-per-second`	`{request.throttler.max-requests-per-second}`

Couchbase

Type: couchbase Disable Property: org.springframework.cloud.bindings.boot.couchbase.enable

Properties

Property	Value
`spring.couchbase.connection-string`	`{connection-string}`
`spring.data.couchbase.bucket-name`	`{bucket-name}`
`spring.couchbase.password`	`{password}`
`spring.couchbase.username`	`{username}`

DB2 RDBMS

Type: db2 Disable Property: org.springframework.cloud.bindings.boot.db2.enable

Property	Value
`spring.datasource.driver-class-name`	`com.ibm.db2.jcc.DB2Driver`
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`{jdbc-url}` or if not set then `jdbc:db2://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:db2://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

Elasticsearch

Type: elasticsearch Disable Property: org.springframework.cloud.bindings.boot.elasticsearch.enable

Properties

Property	Value
`spring.elasticsearch.password`	`{password}`
`spring.elasticsearch.uris`	`{uris}`
`spring.elasticsearch.username`	`{username}`

Kafka

Type: kafka Disable Property: org.springframework.cloud.bindings.boot.kafka.enable

Property	Value
`spring.kafka.bootstrap-servers`	`{bootstrap-servers}`
`spring.kafka.consumer.bootstrap-servers`	`{consumer.bootstrap-servers}`
`spring.kafka.producer.bootstrap-servers`	`{producer.bootstrap-servers}`
`spring.kafka.streams.bootstrap-servers`	`{streams.bootstrap-servers}`

LDAP

Type: ldap Disable Property: org.springframework.cloud.bindings.boot.ldap.enable

Property	Value
`spring.ldap.base`	`{base}`
`spring.ldap.password`	`{password}`
`spring.ldap.urls`	`{urls}`
`spring.ldap.username`	`{username}`

MongoDB

Type: mongodb Disable Property: org.springframework.cloud.bindings.boot.mongodb.enable

Property	Value
`spring.data.mongodb.authentication-database`	`{authentication-database}`
`spring.data.mongodb.database`	`{database}`
`spring.data.mongodb.gridfs.database"`	`{grid-fs-database}`
`spring.data.mongodb.host`	`{host}`
`spring.data.mongodb.password`	`{password}`
`spring.data.mongodb.port`	`{port}`
`spring.data.mongodb.uri`	`{uri}`
`spring.data.mongodb.username`	`{username}`

MySQL RDBMS

Type: mysql Disable Property: org.springframework.cloud.bindings.boot.mysql.enable

Property	Value
`spring.datasource.driver-class-name`	`org.mariadb.jdbc.Driver` or `com.mysql.cj.jdbc.Driver` depending on classpath
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`{jdbc-url}` or if not set then `jdbc:mysql://{host}:{port}/{database}` or `jdbc:mariadb://{host}:{port}/{database}` depending on classpath (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:mysql://{host}:{port}/{database}` or `r2dbc:mariadb//{host}:{port}/{database}` depending on classpath (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

Neo4J

Type: neo4j Disable Property: org.springframework.cloud.bindings.boot.neo4j.enable

Properties

Property	Value
`spring.neo4j.uri`	`{uri}`
`spring.neo4j.authentication.username`	`{username}`
`spring.neo4j.authentication.password`	`{password}`

Oracle RDBMS

Type: oracle Disable Property: org.springframework.cloud.bindings.boot.oracle.enable

Property	Value
`spring.datasource.driver-class-name`	`oracle.jdbc.OracleDriver`
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`{jdbc-url}` or if not set then `jdbc:oracle://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:oracle://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

PostgreSQL RDBMS

Type: postgresql Disable Property: org.springframework.cloud.bindings.boot.postgresql.enable

Property	Value
`spring.datasource.driver-class-name`	`org.postgresql.Driver`
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`{jdbc-url}` or if not set then `jdbc:postgresql://{host}:{port}/{database}`. If a binding for `{sslmode}`, `{sslrootcert}`, or `{options}` are set, the value is appended as properties to the generated URL (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:postgresql://{host}:{port}/{database}`. If a binding for `{sslmode}`, `{sslrootcert}`, or `{options}` are set, the value is appended as properties to the generated URL (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

RabbitMQ

Type: rabbitmq Disable Property: org.springframework.cloud.bindings.boot.rabbitmq.enable

Property	Value
`spring.rabbitmq.addresses`	`{addresses}`
`spring.rabbitmq.host`	`{host}`
`spring.rabbitmq.password`	`{password}`
`spring.rabbitmq.port`	`{port}`
`spring.rabbitmq.username`	`{username}`
`spring.rabbitmq.virtual-host`	`{virtual-host}`

Redis

Type: redis Disable Property: org.springframework.cloud.bindings.boot.redis.enable

Properties

Property	Value
`spring.data.redis.client-name`	`{client-name}`
`spring.data.redis.cluster.max-redirects`	`{cluster.max-redirects}`
`spring.data.redis.cluster.nodes`	`{cluster.nodes}`
`spring.data.redis.database`	`{database}`
`spring.data.redis.host`	`{host}`
`spring.data.redis.password`	`{password}`
`spring.data.redis.port`	`{port}`
`spring.data.redis.sentinel.master`	`{sentinel.master}`
`spring.data.redis.sentinel.nodes`	`{sentinel.nodes}`
`spring.data.redis.ssl`	`{ssl}`
`spring.data.redis.url`	`{url}`

SAP Hana

Type: hana Disable Property: org.springframework.cloud.bindings.boot.hana.enable

Property	Value
`spring.datasource.driver-class-name`	`com.sap.db.jdbc.Driver`
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`{jdbc-url}` or if not set then `jdbc:sap://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:sap://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

SCS Config Server

Type: config Disable Property: org.springframework.cloud.bindings.boot.config.enable

Property	Value
`spring.cloud.config.uri`	`{uri}`
`spring.cloud.config.client.oauth2.clientId`	`{client-id}`
`spring.cloud.config.client.oauth2.clientSecret`	`{client-secret}`
`spring.cloud.config.client.oauth2.accessTokenUri`	`{access-token-uri}`
`spring.cloud.config.tls.enabled`	`true` when `{tls.crt}` and `{tls.key}` are set
`spring.cloud.config.tls.key-store`	derived from `{tls.crt}` and `{tls.key}`
`spring.cloud.config.tls.key-store-type`	`"PKCS12"` when `{tls.crt}` and `{tls.key}` are set
`spring.cloud.config.tls.key-store-password`	random string when `{tls.crt}` and `{tls.key}` are set
`spring.cloud.config.tls.key-alias`	`"config"` when `{tls.crt}` and `{tls.key}` are set
`spring.cloud.config.tls.key-password`	`""` when `{tls.crt}` and `{tls.key}` are set
`spring.cloud.config.tls.trust-store`	derived from `{ca.crt}` when it is set
`spring.cloud.config.tls.trust-store-type`	`"PKCS12"` when `{ca.crt}` is set
`spring.cloud.config.tls.trust-store-password`	random string when `{ca.crt}` is set

SCS Eureka

Type: eureka Disable Property: org.springframework.cloud.bindings.boot.eureka.enable

Property	Value
`eureka.client.oauth2.client-id`	`{client-id}`
`eureka.client.oauth2.access-token-uri`	`{access-token-uri}`
`eureka.client.region`	`default`
`eureka.client.serviceUrl.defaultZone`	`{uri}/eureka/`
`eureka.client.tls.enabled`	`true` when `{ca.crt}` is set
`eureka.client.tls.trust-store`	derived from `{ca.crt}`
`eureka.client.tls.trust-store-type`	`"PKCS12"` when `{ca.crt}` is set
`eureka.client.tls.trust-store-password`	random string when `{ca.crt}` is set
`eureka.instance.preferIpAddress`	`true` when `{ca.crt}` is set¹
`eureka.client.tls.key-alias`	`"eureka"` when `{ca.crt}`, `{tls.crt}` and `{tls.key}` are set
`eureka.client.tls.key-store`	derived from `{tls.crt}` and `{tls.key}`
`eureka.client.tls.key-store-type`	`"PKCS12"` when `{ca.crt}`, `{tls.crt}` and `{tls.key}` are set
`eureka.client.tls.key-store-password`	random string when `{ca.crt}`, `{tls.crt}` and `{tls.key}` are set
`eureka.client.tls.key-password`	`""` when `{ca.crt}`, `{tls.crt}` and `{tls.key}` are set

Spring Security OAuth2

Type: oauth2 Disable Property: org.springframework.cloud.bindings.boot.oauth2.enable

Property	Value
`spring.security.oauth2.client.registration.{name}.client-id`	`{client-id}`
`spring.security.oauth2.client.registration.{name}.client-secret`	`{client-secret}`
`spring.security.oauth2.client.registration.{name}.provider`	`{provider}`
`spring.security.oauth2.client.registration.{name}.client-name`	`{client-name}`
`spring.security.oauth2.client.registration.{name}.client-authentication-method`	`{client-authentication-method}`
`spring.security.oauth2.client.registration.{name}.authorization-grant-type`	`{authorization-grant-type}` or if not set then `{authorization-grant-types}` if it contains only one value (comma-separated)
`spring.security.oauth2.client.registration.{name}.redirect-uri`	`{redirect-uri}` or if not set then `{redirect-uris}` if it contains only one value (comma-separated)
`spring.security.oauth2.client.registration.{name}.scope`	`{scope}`
`spring.security.oauth2.client.provider.{provider}.issuer-uri`	`{issuer-uri}`
`spring.security.oauth2.client.provider.{provider}.authorization-uri`	`{authorization-uri}`
`spring.security.oauth2.client.provider.{provider}.token-uri`	`{token-uri}`
`spring.security.oauth2.client.provider.{provider}.user-info-uri`	`{user-info-uri}`
`spring.security.oauth2.client.provider.{provider}.user-info-authentication-method`	`{user-info-authentication-method}`
`spring.security.oauth2.client.provider.{provider}.jwk-set-uri`	`{jwk-set-uri}`
`spring.security.oauth2.client.provider.{provider}.user-name-attribute`	`{user-name-attribute}`

SQLServer RDBMS

Type: sqlserver Disable Property: org.springframework.cloud.bindings.boot.sqlserver.enable

Property	Value
`spring.datasource.driver-class-name`	`com.microsoft.sqlserver.jdbc.SQLServerDriver`
`spring.datasource.password`	`{password}`
`spring.datasource.url`	`jdbc:sqlserver://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.datasource.username`	`{username}`
`spring.r2dbc.url`	`{r2dbc-url}` or if not set then `r2dbc:sqlserver://{host}:{port}/{database}` (you must have host, port and database set or no mapping will occur)
`spring.r2dbc.password`	`{password}`
`spring.r2dbc.username`	`{username}`

Vault

Type: vault Disable Property: org.springframework.cloud.bindings.boot.vault.enable

Any Provider:

Property	Value
`spring.cloud.vault.authentication`	`{authentication-method}`
`spring.cloud.vault.namespace`	`{namespace}`
`spring.cloud.vault.uri`	`{uri}`

If {authentication-method} is equal to approle:

Property	Value
`spring.cloud.vault.app-role.app-role-path`	`{app-role-path}`
`spring.cloud.vault.app-role.role-id`	`{role-id}`
`spring.cloud.vault.app-role.role`	`{role}`
`spring.cloud.vault.app-role.secret-id`	`{secret-id}`

If {authentication-method} is equal to aws_ec2:

Property	Value
`spring.cloud.vault.aws-ec2.aws-ec2-path`	`{aws-ec2-path}`
`spring.cloud.vault.aws-ec2.identity-document`	`{aws-ec2-instance-identity-document}`
`spring.cloud.vault.aws-ec2.nonce`	`{nonce}`
`spring.cloud.vault.aws-ec2.role`	`{role}`

If {authentication-method} is equal to aws_iam:

Property	Value
`spring.cloud.vault.aws-iam.aws-path`	`{aws-path}`
`spring.cloud.vault.aws-iam.endpoint-uri`	`{aws-sts-endpoint-uri}`
`spring.cloud.vault.aws-iam.role`	`{role}`
`spring.cloud.vault.aws-iam.server-name`	`{aws-iam-server-name}`

If {authentication-method} is equal to azure_msi:

Property	Value
`spring.cloud.vault.azure-msi.azure-path`	`{azure-path}`
`spring.cloud.vault.azure-msi.role`	`{role}`
`spring.cloud.vault.azure-msi.metadata-service`	`{metadata-service}`
`spring.cloud.vault.azure-msi.identity-token-service`	`{identity-token-service}`

If {authentication-method} is equal to cert:

Property	Value
`spring.cloud.vault.ssl.cert-auth-path`	`{cert-auth-path}`
`spring.cloud.vault.ssl.key-store-password`	`{key-store-password}`
`spring.cloud.vault.ssl.key-store`	`${SERVICE_BINDING_ROOT}/{name}/keystore.jks`
`spring.cloud.vault.ssl.trust-store`	`${SERVICE_BINDING_ROOT}/{name}/truststore.jks`
`spring.cloud.vault.ssl.trust-store-password`	`{trust-store-password}`

If {authentication-method} is equal to cubbyhole:

Property	Value
`spring.cloud.vault.token`	`{token}`

If {authentication-method} is equal to gcp_gce:

Property	Value
`spring.cloud.vault.gcp-gce.gcp-path`	`{gcp-path}`
`spring.cloud.vault.gcp-gce.role`	`{role}`
`spring.cloud.vault.gcp-gce.service-account`	`{gcp-service-account}`

If {authentication-method} is equal to gcp_iam:

Property	Value
`spring.cloud.vault.gcp-iam.credentials.encoded-key`	`{encoded-key}`
`spring.cloud.vault.gcp-iam.credentials.location`	`${SERVICE_BINDING_ROOT}/{name}/credentials.json`
`spring.cloud.vault.gcp-iam.gcp-path`	`{gcp-path}`
`spring.cloud.vault.gcp-iam.jwt-validity`	`{jwt-validity}`
`spring.cloud.vault.gcp-iam.project-id`	`{gcp-project-id}`
`spring.cloud.vault.gcp-iam.role`	`{role}`
`spring.cloud.vault.gcp-iam.service-account`	`{gcp-service-account}` Spring Boot 2
`spring.cloud.vault.gcp-iam.service-account-id`	`{gcp-service-account}` Spring Boot 3

If {authentication-method} is equal to kubernetes:

Property	Value
`spring.cloud.vault.kubernetes.role`	`{role}`
`spring.cloud.vault.kubernetes.kubernetes-path`	`{kubernetes-path}`
`spring.cloud.vault.kubernetes.kubernetes-service-account-token-file`	`{kubernetes-service-account-token-file}` Spring Boot 3

If {authentication-method} is equal to token:

Property	Value
`spring.cloud.vault.token`	`{token}`

Wavefront

Type: wavefront Disable Property: org.springframework.cloud.bindings.boot.wavefront.enable

Property	Value
`management.wavefront.api-token`	`{api-token}`
`management.wavefront.uri`	`{uri}`

Extending Spring Boot Configuration

Consumers can extend the BindingSpecificEnvironmentPostProcessor with support for additional bindings by registering additional implementations of the BindingsPropertiesProcessor.

package com.example;


import org.springframework.cloud.bindings.Binding;
import org.springframework.cloud.bindings.Bindings;
import org.springframework.cloud.bindings.boot.BindingsPropertiesProcessor;
import org.springframework.core.env.Environment;

import java.util.List;
import java.util.Map;

public final class MyServiceBindingsPropertiesProcessor implements BindingsPropertiesProcessor {

    public static final String TYPE = "myservice";

    @Override
    public void process(Environment environment, Bindings bindings, Map<String, Object> properties) {
        if (!environment.getProperty("com.example.bindings.myservice.enable", Boolean.class, true)) {
            return;
        }
        List<Binding> myBindings = bindings.filterBindings(TYPE);
        if (myBindings.size() == 0) {
            return;
        }
        properties.put("my.service.uri", myBindings.get(0).getSecret().get("uri"));
        properties.put("my.service.enabled", true);
    }

}

These lines from the above example allow users to set com.example.bindings.myservice.enable=false to disable the processor entirely:

        if (!environment.getProperty("com.example.bindings.myservice.enable", Boolean.class, true)) {
            return;
        }

You must add an entry in META_INF/spring.factories so that your custom processor can be discovered.

org.springframework.cloud.bindings.boot.BindingsPropertiesProcessor=com.example.MyServiceBindingsPropertiesProcessor

License

This buildpack is released under version 2.0 of the Apache License.

Note that eureka.instance.perferIpAddress will not be overwritten by the Eureka auto-configuration if it is already set in the environment. Applications wishing to set an explicit endpoint with eureka.instance.host can set eureka.instance.perferIpAddress to false and it will not be overwritten. ↩

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spring-cloud/spring-cloud-bindings

README

Spring Cloud Bindings

Features

Library Usage

Spring Boot Configuration

Auto-Configurations

ActiveMQ Artemis

Properties

Cassandra

Properties

Couchbase

Properties

DB2 RDBMS

Elasticsearch

Properties

Kafka

LDAP

MongoDB

MySQL RDBMS

Neo4J

Properties

Oracle RDBMS

PostgreSQL RDBMS

RabbitMQ

Redis

Properties

SAP Hana

SCS Config Server

SCS Eureka

Spring Security OAuth2

SQLServer RDBMS

Vault

Wavefront

Extending Spring Boot Configuration

License

Footnotes

Contributors

Similar repos

Languages

spring-cloud/spring-cloud-bindings

README

Spring Cloud Bindings

Features

Library Usage

Spring Boot Configuration

Auto-Configurations

ActiveMQ Artemis

Properties

Cassandra

Properties

Couchbase

Properties

DB2 RDBMS

Elasticsearch

Properties

Kafka

LDAP

MongoDB

MySQL RDBMS

Neo4J

Properties

Oracle RDBMS

PostgreSQL RDBMS

RabbitMQ

Redis

Properties

SAP Hana

SCS Config Server

SCS Eureka

Spring Security OAuth2

SQLServer RDBMS

Vault

Wavefront

Extending Spring Boot Configuration

License

Footnotes

Similar repos

Contributors

Languages