Logstash 无法加载，文件不可读

Question

尝试按照此答案使用MongoDbJdbcDriver在 MongoDB 和 Elasticsearch 之间同步。我使用 Docker Compose 进行开发，这就是 Logstash 的样子：

  logstash:
    image: logstash:7.9.1
    container_name: logstash
    volumes:
      - ./logstash/jars/gson-2.8.6.jar:/usr/share/logstash/logstash-core/lib/jars/gson-2.8.6.jar:ro
      - ./logstash/jars/mongojdbc2.3.jar:/usr/share/logstash/logstash-core/lib/jars/mongojdbc2.3.jar:ro
      - ./logstash/jars/mongo-java-driver-3.12.6.jar:/usr/share/logstash/logstash-core/lib/jars/mongo-java-driver-3.12.6.jar:ro
      - ./logstash/config/pipelines.yml:/usr/share/logstash/config/pipelines.yml
      - ./logstash/pipeline/mongo-to-elasticsearch.conf:/usr/share/logstash/pipeline/mongo-to-elasticsearch.conf
    command: logstash
    depends_on:
      - elasticsearch

我运行

docker-compose up

，它给出了这个错误：

...
logstash         |   Error: unable to load mongojdbc2.3.jar from :jdbc_driver_library, file not readable (please check user and group permissions for the path)
logstash         |   Exception: LogStash::PluginLoadingError
...

我已经检查了我的机器上

mongojdbc2.3.jar

的文件权限，为我和docker组提供了读写权限。然而，当我检查

logstash

容器内部时，所有者不是

root

而是

logstash

:

// ls -l /usr/share/logstash/logstash-core/lib/jars

...
-rw-r--r-- 1 logstash logstash  2315317 Jul 24 15:13 mongo-java-driver-3.12.6.jar
-rw-r--r-- 1 logstash logstash    83500 Sep  8 01:30 mongojdbc2.3.jar
-rw-rw-r-- 1 logstash root       107210 Sep  1 23:32 org.eclipse.core.commands-3.6.0.jar
...

我尝试更改容器内的所有权，但我无法做到这一点，因为我没有

sudo

权限。

如何在 MongoDB 和 Elasticsearch 之间成功同步？

---

堆栈：MongoDB (v4.4.1)、Logstash (v7.9.1)、Docker (v19.03.12)、Docker Compose (v1.27.3)

Answer 1

尝试创建包含 jar 的新图像

  logstash:
    build: ./logstash/
    container_name: logstash
    volumes:
      - ./logstash/config/pipelines.yml:/usr/share/logstash/config/pipelines.yml
      - ./logstash/pipeline/mongo-to-elasticsearch.conf:/usr/share/logstash/pipeline/mongo-to-elasticsearch.conf
    command: logstash
    depends_on:
      - elasticsearch

./logstash/Dockerfile

FROM docker.elastic.co/logstash/logstash:7.9.1

COPY ./jars/ /usr/share/logstash/logstash-core/lib/jars