branch-2.1: [opt](iceberg docker)Use PostgreSQL as the backend for the Iceberg REST server. #46289 (#46576)

Cherry-picked from #46289

Co-authored-by: wuwenchi <wuwenchi@selectdb.com>

docker/thirdparties/docker-compose/iceberg/entrypoint.sh.tpl

@@ -23,24 +23,25 @@ start-worker.sh spark://doris--spark-iceberg:7077
 start-history-server.sh
 start-thriftserver.sh --driver-java-options "-Dderby.system.home=/tmp/derby"
 
+# The creation of a Spark SQL client is time-consuming,
+# and reopening a new client for each SQL file execution leads to significant overhead.
+# To reduce the time spent on creating clients,
+# we group these files together and execute them using a single client.
+# This approach can reduce the time from 150s to 40s.
 
+START_TIME1=$(date +%s)
+find /mnt/scripts/create_preinstalled_scripts/iceberg -name '*.sql' | sed 's|^|source |' | sed 's|$|;|'> iceberg_total.sql
+spark-sql --master spark://doris--spark-iceberg:7077 --conf spark.sql.extensions=org.apache.iceberg.spark.extensions.IcebergSparkSessionExtensions -f iceberg_total.sql 
+END_TIME1=$(date +%s)
+EXECUTION_TIME1=$((END_TIME1 - START_TIME1))
+echo "Script iceberg total: {} executed in $EXECUTION_TIME1 seconds"
 
-ls /mnt/scripts/create_preinstalled_scripts/iceberg/*.sql | xargs -n 1 -I {} bash -c '
-    START_TIME=$(date +%s)
-    spark-sql --master spark://doris--spark-iceberg:7077 --conf spark.sql.extensions=org.apache.iceberg.spark.extensions.IcebergSparkSessionExtensions -f {} 
-    END_TIME=$(date +%s)
-    EXECUTION_TIME=$((END_TIME - START_TIME))
-    echo "Script: {} executed in $EXECUTION_TIME seconds"
-'
-
-ls /mnt/scripts/create_preinstalled_scripts/paimon/*.sql | xargs -n 1 -I {} bash -c '
-    START_TIME=$(date +%s)
-    spark-sql --master  spark://doris--spark-iceberg:7077 --conf spark.sql.extensions=org.apache.paimon.spark.extensions.PaimonSparkSessionExtensions -f {} 
-    END_TIME=$(date +%s)
-    EXECUTION_TIME=$((END_TIME - START_TIME))
-    echo "Script: {} executed in $EXECUTION_TIME seconds"
-'
-
+START_TIME2=$(date +%s)
+find /mnt/scripts/create_preinstalled_scripts/paimon -name '*.sql' | sed 's|^|source |' | sed 's|$|;|'> paimon_total.sql
+spark-sql --master  spark://doris--spark-iceberg:7077 --conf spark.sql.extensions=org.apache.paimon.spark.extensions.PaimonSparkSessionExtensions -f paimon_total.sql
+END_TIME2=$(date +%s)
+EXECUTION_TIME2=$((END_TIME2 - START_TIME2))
+echo "Script paimon total: {} executed in $EXECUTION_TIME2 seconds"
 
 touch /mnt/SUCCESS;
 

docker/thirdparties/docker-compose/iceberg/iceberg.yaml.tpl

@@ -18,6 +18,7 @@
 version: "3"
 
 services:
+
   spark-iceberg:
     image: tabulario/spark-iceberg
     container_name: doris--spark-iceberg
@@ -47,6 +48,19 @@ services:
       interval: 5s
       timeout: 120s
       retries: 120
+
+  postgres:
+    image: postgis/postgis:14-3.3
+    container_name: doris--postgres
+    environment:
+      POSTGRES_PASSWORD: 123456
+      POSTGRES_USER: root
+      POSTGRES_DB: iceberg
+    volumes:
+      - ./data/input/pgdata:/var/lib/postgresql/data
+    networks:
+      - doris--iceberg
+
   rest:
     image: tabulario/iceberg-rest
     container_name: doris--iceberg-rest
@@ -54,6 +68,8 @@ services:
       - ${REST_CATALOG_PORT}:8181
     volumes:
       - ./data:/mnt/data
+    depends_on:
+      - postgres
     environment:
       - AWS_ACCESS_KEY_ID=admin
       - AWS_SECRET_ACCESS_KEY=password
@@ -61,6 +77,9 @@ services:
       - CATALOG_WAREHOUSE=s3a://warehouse/wh/
       - CATALOG_IO__IMPL=org.apache.iceberg.aws.s3.S3FileIO
       - CATALOG_S3_ENDPOINT=http://minio:9000
+      - CATALOG_URI=jdbc:postgresql://postgres:5432/iceberg
+      - CATALOG_JDBC_USER=root
+      - CATALOG_JDBC_PASSWORD=123456
     networks:
       - doris--iceberg
     entrypoint: /bin/bash /mnt/data/input/script/rest_init.sh