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Fix Azure Managed Identity configuration for mi-azuresql-spring sample #4

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Fix Azure Managed Identity configuration for mi-azuresql-spring sample #4

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Initial plan
Copilot Sep 10, 2025
30ba758
Complete Azure Managed Identity migration for mi-azuresql-spring
Copilot Sep 10, 2025
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56 changes: 56 additions & 0 deletions mi-sql-public-demo/dependency-reduced-pom.xml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,56 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<artifactId>maven-shade-plugin</artifactId>
<version>3.2.4</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer>
<mainClass>com.example.MainSQL</mainClass>
</transformer>
</transformers>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.azure.spring</groupId>
<artifactId>spring-cloud-azure-dependencies</artifactId>
<version>5.22.0</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<properties>
<maven.compiler.target>17</maven.compiler.target>
<java.version>17</java.version>
<maven.compiler.source>17</maven.compiler.source>
</properties>
</project>
29 changes: 28 additions & 1 deletion mi-sql-public-demo/src/main/java/com/example/MainSQL.java
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Expand Up @@ -11,6 +11,29 @@

public class MainSQL {

/**
* Resolves environment variable placeholders in the format ${VAR_NAME}
*/
private static String resolveEnvironmentVariables(String input) {
if (input == null) {
return null;
}

String result = input;
java.util.regex.Pattern pattern = java.util.regex.Pattern.compile("\\$\\{([^}]+)\\}");
java.util.regex.Matcher matcher = pattern.matcher(input);

while (matcher.find()) {
String envVar = matcher.group(1);
String envValue = System.getenv(envVar);
if (envValue != null) {
result = result.replace("${" + envVar + "}", envValue);
}
}

return result;
}


public static void main(String[] args) {

Expand All @@ -30,8 +53,12 @@ public static void main(String[] args) {
String connString = properties.getProperty("AZURE_SQLDB_CONNECTIONSTRING");
String clientId = properties.getProperty("AZURE_CLIENT_ID");

// Resolve environment variables in connection string
connString = resolveEnvironmentVariables(connString);
clientId = resolveEnvironmentVariables(clientId);

connString = connString + ";msiClientId=" + clientId + ";authentication=ActiveDirectoryMSI";
System.out.print(connString);
System.out.println("Connection string: " + connString);

SQLServerDataSource ds = new SQLServerDataSource();
ds.setURL(connString);
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2 changes: 1 addition & 1 deletion mi-sql-public-demo/src/main/resources/application.properties
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@@ -1,5 +1,5 @@
AZURE_SQLDB_CONNECTIONSTRING=jdbc:sqlserver://${AZ_DATABASE_SERVER_NAME}.database.windows.net:1433;database=demo;encrypt=true;trustServerCertificate=false;hostNameInCertificate=*.database.windows.net;loginTimeout=30;
AZURE_CLIENT_ID=<your managed identity client id>
AZURE_CLIENT_ID=${AZURE_CLIENT_ID}

# Enable Azure managed identity for Spring Cloud Azure
spring.cloud.azure.credential.managed-identity-enabled=true
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