deniskuzZ commented on code in PR #6147:
URL: https://github.com/apache/hive/pull/6147#discussion_r2470008902
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packaging/src/docker/thirdparties/gravitino/README.md:
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+<!--
+{% comment %}
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements. See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to you under the Apache License, Version 2.0
+(the "License"); you may not use this file except in compliance with
+the License. You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+{% endcomment %}
+-->
+
+# Hive + Gravitino + Keycloak: Docker-Compose Setup
+
+This repository contains a docker-compose-based setup integrating Apache Hive,
Gravitino Iceberg REST server, and Keycloak for OAuth2 authentication. It
allows Hive to use an Iceberg REST catalog secured via Keycloak.
+
+## Table of Contents
+- Architecture Overview
+- Prerequisites
+- Quickstart
+- Configuration
+ - Keycloak
+ - Gravitino
+ - Hive
+- Networking Notes
+
+## Architecture Overview
+This diagram illustrates the key docker-compose components and their
interactions in this setup:
+
+```
+ oAuth2 (REST API)
+ +-------------------------------------------------------------------+
+ | |
+ | v
++--------+----------+ +-------------------+
+-----------------+
+| | RESTCatalog | | oauth2 |
|
+| Hive | (REST API) | Gravitino | (REST API) |
Keycloak |
+| (HiveServer2) +-------------->| Iceberg REST +----------->| OAuth2
Auth |
+| | | Server | |
Server |
++--------+----------+ +---------+---------+
+-----------------+
+ | |
+ data | metadata files |
+ files +------------------------------------+
+ |
+ v
++-------------------+ +-------------------+
+| | creates dir | |
+| /warehouse |<--------------+ init |
+| (Docker volume) | sets | container |
+| | permissions | |
++-------------------+ +-------------------+
+```
+
+- Hive:
+ - Runs HiveServer2, connects to Gravitino via Iceberg REST catalog.
+ - Write Iceberg data files to the shared warehouse volume.
+- Gravitino:
+ - Exposes REST API for Iceberg catalog.
+ - Writes Iceberg metadata files to shared warehouse volume
(.metadata.json).
+ - Doesn't supports serving as oauth2 provider, so this example uses an
external OAuth2 provider (Keyclock).
+- Keycloak:
+ - OAuth2 server providing authentication and token issuance for
Hive/Gravitino.
+- /warehouse:
+ - Shared Docker volume for Iceberg table data and metadata.
+- Init container:
+ - Creates shared /warehouse folder and sets filesystem permissions as a
one time initialization step.
+
+## Prerequisites
+- Docker & Docker Compose
+- Java (for local Hive beeline client)
+- ```$HIVE_HOME``` environment variable pointing to Hive installation (for
connecting to Beeline)
+
+## Quickstart
+### STEP 1: Build Hive Docker Image
+- Currently, only Hive 4.2.0-SNAPSHOT has the required Iceberg REST catalog
client.
+- To build the Hive Docker image with Iceberg REST catalog client on your
local machine, follow these steps:
+ - Build Hive using Docker profile.
+ - Copy ```apache-hive-4.2.0-SNAPSHOT-bin.tar.gz``` to
```packaging/cache``` folder.
Review Comment:
why do we need to copy the jar?
we are not doing that manually in the root hive docker-compose. docker
profile is creating the hive images that we use in docker-compose
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