Update DroneCI configuration, include settings.xml

.drone.yml

@@ -10,31 +10,15 @@ load: yes
 steps:
 
 
-  - name: maven-auth
-    image: robertstettner/drone-mvn-auth
-    pull: true
-    servers:
-      from_secret: maven_servers
-    profiles:
-      - id: default
-        repositories:
-          - id: nexus-releases
-            name: Nexus Releases
-            url: https://nexus.beatrice.wtf/repository/maven-releases/
-            layout: default
-    active_profiles:
-      - default
-    when:
-      event:
-        - promote
-      target:
-        - production
-
   - name: maven-deploy
     image: maven:3-eclipse-temurin-16
     commands:
-      - cat settings.xml
+      - mvn deploy --no-transfer-progress -DskipTests=true -Dmaven.javadoc.skip=true -B -V -gs settings.xml -Dmaven.repo.username=$MAVEN_REPO_USERNAME -Dmaven.repo.password=$MAVEN_REPO_PASSWORD
-      - mvn deploy --no-transfer-progress -DskipTests=true -Dmaven.javadoc.skip=true -B -V -gs settings.xml
+    environment:
+      MAVEN_REPO_USERNAME:
+        from_secret: maven_repo_username
+      MAVEN_REPO_PASSWORD:
+        from_secret: maven_repo_password
     when:
       event:
         - promote

settings.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<settings xmlns="http://maven.apache.org/SETTINGS/1.1.0"
+          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd">
+
+    <servers>
+        <server>
+            <id>nexus-snapshots</id>
+            <username>${maven.repo.username}</username>
+            <password>${maven.repo.password}</password>
+        </server>
+        <server>
+            <id>nexus-releases</id>
+            <username>${maven.repo.username}</username>
+            <password>${maven.repo.password}</password>
+        </server>
+    </servers>
+
+</settings>
+