[Backport 2.x] Add workflow to publish snapshots via GHA (#325) (#455)

* Add workflow to publish snapshots via GHA (#325)

* Add workflow to publish snapshots via GHA

Signed-off-by: Sayali Gaikawad <gaiksaya@amazon.com>

* Fix task name

Signed-off-by: Sayali Gaikawad <gaiksaya@amazon.com>

* Fix conflict and add documentation

Signed-off-by: Sayali Gaikawad <gaiksaya@amazon.com>

Signed-off-by: Sayali Gaikawad <gaiksaya@amazon.com>
Signed-off-by: Vacha Shah <vachshah@amazon.com>

* Fixing documentation for snapshot builds

Signed-off-by: Vacha Shah <vachshah@amazon.com>

---------

Signed-off-by: Sayali Gaikawad <gaiksaya@amazon.com>
Signed-off-by: Vacha Shah <vachshah@amazon.com>
Co-authored-by: Sayali Gaikawad <61760125+gaiksaya@users.noreply.github.com>

README.md

@@ -14,6 +14,7 @@ OpenSearch Java Client
 - [Project Resources](#project-resources)
 - [Code of Conduct](#code-of-conduct)
 - [User Guide](#user-guide)
+- [Snapshot Builds](#snapshot-builds)
 - [Compatibility with OpenSearch](#compatibility-with-opensearch)
 - [Security](#security)
 - [License](#license)
@@ -35,7 +36,7 @@ Please see the [USER_GUIDE](USER_GUIDE.md) for code snippets.
 * [Documentation](https://opensearch.org/docs/latest/clients/java/)
 * [JavaDoc](https://www.javadoc.io/doc/org.opensearch.client/opensearch-java/latest/index.html)
 * [Maven Central](https://search.maven.org/artifact/org.opensearch.client/opensearch-java)
-* [Snapshot Builds](https://aws.oss.sonatype.org/content/repositories/snapshots/org/opensearch/client/opensearch-java/)
+* [Snapshot Builds](#snapshot-builds)
 * Need help? Try [Forums](https://discuss.opendistrocommunity.dev/)
 * [Project Principles](https://opensearch.org/#principles)
 * [Contributing to OpenSearch](CONTRIBUTING.md)
@@ -52,6 +53,9 @@ This project has adopted the [Amazon Open Source Code of Conduct](CODE_OF_CONDUC
 
 See [User Guide](USER_GUIDE.md).
 
+## Snapshot Builds
+The [snapshots builds](https://aws.oss.sonatype.org/content/repositories/snapshots/org/opensearch/client/opensearch-java/) are published to sonatype using [publish-snapshots.yml](./.github/workflows/publish-snapshots.yml) workflow.
+
 ## Compatibility with OpenSearch
 
 See [Compatibility](COMPATIBILITY.md).

java-client/build.gradle.kts

@@ -260,8 +260,11 @@ publishing {
     repositories{
         if (version.toString().endsWith("SNAPSHOT")) {
             maven("https://aws.oss.sonatype.org/content/repositories/snapshots/") {
-                name = "snapshotRepo"
-                credentials(PasswordCredentials::class)
+                name = "Snapshots"
+                credentials {
+                    username = System.getenv("SONATYPE_USERNAME")
+                    password = System.getenv("SONATYPE_PASSWORD")
+                }
             }
         }
         maven("${rootProject.buildDir}/repository") {