Add Java ACI runtime annotation (#37)

* added aci runtime for java

* add default value for resource group

Author: yolocs

java/src/main/java/io/metaparticle/annotations/AciRuntime.java

@@ -0,0 +1,39 @@
+package io.metaparticle.annotations;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+@Retention(RetentionPolicy.RUNTIME)
+public @interface AciRuntime {
+    /**
+     * Azure tenant id.
+     */
+    public String azureTenantId() default "";
+
+    /**
+     * Azure subscription id.
+     * Container instances will be created using the given subscription.
+     */
+    public String azureSubscriptionId() default "";
+
+    /**
+     * Azure client id (aka. application id).
+     */
+    public String azureClientId() default "";
+
+    /**
+     * Azure client secret (aka. application key).
+     * If specified, then will authenticate to Azure as service principal.
+     * And then no need to specify username/password.
+     */
+    public String azureClientSecret() default "";
+
+    public String username() default "";
+
+    public String password() default "";
+
+    /**
+     * The resource group to create container instance.
+     */
+    public String aciResourceGroup() default "metaparticle-execution";
+}