Allow setting the bucket region with Cloudflare auto as default

Author: Brutus5000

src/inttest/resources/config/application.yml

@@ -103,6 +103,7 @@ faf-api:
     access-key: admin
     secret-key: banana123
     endpoint: http://minio
+    region: auto
     user-upload-bucket: user-uploads
 
 logging:

src/main/java/com/faforever/api/config/FafApiProperties.java

@@ -303,6 +303,7 @@ public static class Coturn {
   @Data
   public static class S3 {
     private String endpoint;
+    private String region;
     private String userUploadBucket;
     private String accessKey;
     private String secretKey;

src/main/java/com/faforever/api/config/S3Config.java

@@ -36,7 +36,8 @@ public S3Client s3Client() {
   public S3Presigner s3Presigner() {
     return S3Presigner.builder()
       .endpointOverride(URI.create(properties.getS3().getEndpoint()))
-      .region(Region.EU_CENTRAL_1) // region must be non-null but is ignored by some S3-compatible services
+      // Cloudflare has different regions as AWS: wnam, enam, weur, eeur, apac, oc, auto
+      .region(Region.of(properties.getS3().getRegion())) // region must be non-null but is ignored by some S3-compatible services
       .credentialsProvider(StaticCredentialsProvider.create(
         AwsBasicCredentials.create(properties.getS3().getAccessKey(), properties.getS3().getSecretKey())
       ))

src/main/resources/config/application-local.yml

@@ -61,6 +61,7 @@ faf-api:
     access-key: ${S3_ACCESS_KEY:admin}
     secret-key: ${S3_SECRET_KEY:banana123}
     user-upload-bucket: ${S3_USER_UPLOADS_BUCKET:user-uploads}
+    region: ${S3_REGION:auto} # auto is a Cloudflare value
 
 spring:
   datasource:

src/main/resources/config/application.yml

@@ -92,6 +92,7 @@ faf-api:
     access-key: ${S3_ACCESS_KEY:admin}
     secret-key: ${S3_SECRET_KEY:banana123}
     endpoint: ${S3_ENDPOINT:http://minio}
+    region: ${S3_REGION:auto} # auto is a Cloudflare value
     user-upload-bucket: ${S3_USER_UPLOAD_BUCKET:user-uploads}
 
 spring: