Initial commit

Author: alejandro-du

.gitignore

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+node_modules
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

.mvn/wrapper/maven-wrapper.jar

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+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.6/apache-maven-3.8.6-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar

.mvn/wrapper/maven-wrapper.properties

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+# Spring Boot Data JPA + MariaDB MaxScale demo
+
+This example shows how to use MariaDB MaxScale as a database proxy to load balance writes to
+primary servers and reads to replicas.
+
+## Set up the database using Docker
+
+Clone the following repository which contains Docker images to set up replication and MaxScale:
+
+```
+git clone https://github.com/alejandro-du/mariadb-docker-deployments.git
+```
+
+Build the images:
+
+´´´
+cd mariadb-docker-deployments
+docker build --file single-node/Dockerfile --tag alejandrodu/mariadb-single-node .
+docker build --file primary/Dockerfile --tag alejandrodu/mariadb-primary .
+docker build --file replica/Dockerfile --tag alejandrodu/mariadb-replica .
+docker build --file maxscale/Dockerfile --tag alejandrodu/mariadb-maxscale .
+´´´
+
+Alternatively, you can use the **build.sh** script if you are on Linux.
+
+Run the containers:
+
+´´´
+docker compose up -d
+´´´
+
+## Run the web application
+
+Build the Java web application using Maven:
+
+´´´
+mvn package
+´´´
+
+Run it:
+
+´´´
+java -jar target/webapp.jar
+´´´
+
+Access the application in your browser at http://localhost:8080.
+

README.md

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+version: "3.9"
+services:
+  node01:
+    image: alejandrodu/mariadb-primary
+    ports:
+      - 3306:3306
+    networks:
+      network:
+        ipv4_address: 192.0.0.10
+  node02:
+    image: alejandrodu/mariadb-replica
+    command: --server_id 2
+    environment:
+      MARIADB_PRIMARY_HOST: 192.0.0.10
+    ports:
+      - 3307:3306
+    networks:
+      network:
+        ipv4_address: 192.0.0.11
+  node03:
+    image: alejandrodu/mariadb-replica
+    command: --server_id 3
+    environment:
+      MARIADB_PRIMARY_HOST: 192.0.0.10
+    ports:
+      - 3308:3306
+    networks:
+      network:
+        ipv4_address: 192.0.0.12
+  maxscale:
+    image: alejandrodu/mariadb-maxscale
+    depends_on:
+      - node01
+      - node02
+      - node03
+    environment:
+      MARIADB_HOST_1: 192.0.0.10
+      MARIADB_HOST_2: 192.0.0.11
+      MARIADB_HOST_3: 192.0.0.12
+    ports:
+      - 4000:4000
+    networks:
+      network:
+        ipv4_address: 192.0.0.200
+networks:
+  network:
+    ipam:
+      driver: default
+      config:
+        - subnet: 192.0.0.0/24