add image name to .gitlab-ci.yml

.gitlab-ci.yml

 stages:
   - build-container
 
+variables:
+  KANIKO_BUILD_IMAGENAME: local-path-provisioner
+
 build-container:
   stage: build-container
   image:
@@ -10,4 +13,4 @@ build-container:
     entrypoint: [""]
   script:
     - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
-    - /kaniko/executor --cache=true --context ${CI_PROJECT_DIR}/ --dockerfile ${CI_PROJECT_DIR}/Dockerfile.dapper --destination ${CI_REGISTRY_IMAGE}/${IMAGENAME}:${CI_COMMIT_REF_NAME}
+    - /kaniko/executor --cache=true --context ${CI_PROJECT_DIR}/ --dockerfile ${CI_PROJECT_DIR}/Dockerfile.dapper --destination ${CI_REGISTRY_IMAGE}/${KANIKO_BUILD_IMAGENAME}:${CI_COMMIT_REF_NAME}