Fixes Error "Request Entity Too Large"

src/main/groovy/io/seqera/wave/service/persistence/WaveContainerRecord.groovy

@@ -70,7 +70,7 @@ class WaveContainerRecord {
     /**
      * The conda file associated with the request
      */
-    final String condaFile
+    String condaFile
 
     /**
      * The container arch platform

src/main/groovy/io/seqera/wave/service/persistence/impl/SurrealPersistenceService.groovy

@@ -95,6 +95,7 @@ class SurrealPersistenceService implements PersistenceService {
 
     @Override
     void saveBuild(WaveBuildRecord build) {
+        build.condaFile = truncateLargeCondaFile(build.condaFile)
         surrealDb.insertBuildAsync(getAuthorization(), build).subscribe({ result->
             log.trace "Build request with id '$build.buildId' saved record: ${result}"
         }, {error->
@@ -148,6 +149,7 @@ class SurrealPersistenceService implements PersistenceService {
 
     @Override
     void saveContainerRequest(String token, WaveContainerRecord data) {
+        data.condaFile = truncateLargeCondaFile(data.condaFile)
         surrealDb.insertContainerRequestAsync(authorization, token, data).subscribe({ result->
             log.trace "Container request with token '$token' saved record: ${result}"
         }, {error->
@@ -234,4 +236,17 @@ class SurrealPersistenceService implements PersistenceService {
         return result
     }
 
+    /**
+     * Surreal allows 16KB as maximum size for a payload
+     * This method will truncate the payload if it exceeds 14 KB
+     * Truncate the payload if it exceeds the maximum size
+     */
+    protected static truncateLargeCondaFile(String condafile) {
+        int maxSize = 14 * 1024 //14 KB for the file and 2 KB for the rest of the fields
+        if( condafile && condafile.length() > maxSize )
+            return condafile.substring(0, maxSize) + "\n[content truncated]"
+        else
+            return condafile
+
+    }
 }

src/test/groovy/io/seqera/wave/service/persistence/impl/SurrealPersistenceServiceTest.groovy

@@ -19,6 +19,7 @@
 package io.seqera.wave.service.persistence.impl
 
 import spock.lang.Specification
+import spock.lang.Unroll
 
 import java.nio.file.Path
 import java.time.Duration
@@ -293,4 +294,17 @@ class SurrealPersistenceServiceTest extends Specification implements SurrealDBTe
         result2 == scanRecord2
     }
 
+    @Unroll
+    void "truncateLargeCondaFile should return correct size conda file"() {
+        expect:
+        SurrealPersistenceService.truncateLargeCondaFile(CONDA_FILE) == RESULT
+
+        where:
+        CONDA_FILE             | RESULT
+        null                | null
+        ""                  | ""
+        "a" * (14 * 1024)   | "a" * (14 * 1024)
+        "a" * (15 * 1024)   | "a" * (14 * 1024)
+    }
+
 }