Introduce check for config file

src/main/kotlin/org/domaindrivenarchitecture/provs/server/domain/k3s/ConfigFileName.kt

@@ -0,0 +1,9 @@
+package org.domaindrivenarchitecture.provs.server.domain.k3s
+
+import java.io.File
+
+data class ConfigFileName(val fileName: String) {
+    fun fullqualified() : String {
+        return File(fileName).absoluteFile.absolutePath
+    }
+}

src/main/kotlin/org/domaindrivenarchitecture/provs/server/domain/k3s/ConfigFileRepository.kt

@@ -0,0 +1,5 @@
+package org.domaindrivenarchitecture.provs.server.domain.k3s
+
+interface ConfigFileRepository {
+    fun assertExists(configFileName: ConfigFileName?)
+}