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集群Docker集群+卷插件

  • 2021年10月14日
  • 1回复
  • 52岁的观点
米
徽章 ＋1

你好,我已经完成测试卷组之间的插件集成在Nutanix集群与集装箱码头工人(https://next.nutanix.com/karbon - kubernetes编排- 30/nutanix dvp -码头工人-体积-塞-在- 25371)和(https://next.nutanix.com/karbon - kubernetes编排- 30/docker Nutanix -容器-体积-塞-在- 18726)。

在阅读Docker Volume Plugin的文档(https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2037-Docker-Containers-on-AHV:BP-2037-Docker-Containers-on-AHV)时，我没有注意到这样一个插件是否可以在集群模式下使用Docker容器。

我用Ubuntu 20.04进行了一些测试，形成了一个带有03个节点的Docker集群，所有虚拟机都安装了Nutanix Guest Tools。所有使用.yml文件创建堆栈和服务的测试，以及卷的测试都是使用创建卷的命令进行的，以及在.yml文件中进行的。我注意到卷通常是在Swarm集群和Nutanix集群中创建的，但是Docker容器不会启动，因为他们不能使用创建的卷。我注意到卷是在集群集群的所有节点上创建的，即使我在每个节点上创建了01个服务副本的堆栈，或者在随机的集群集群节点上仅创建了01个副本，容器仍然不能使用卷，因为它不能初始化。

当我遇到这个问题,我发现下面的链接(https://myvirtualcloud.net/how-to-implement-docker-swarm-with-postgresql-and-web-services-on-nutanix-acs-for-persistent-volumes/)报道DVP在群集群的使用,说明您应该检查一个选项在卷组的配置Nutanix集群,但是我没有找到选项通知链接,最近我发现选择“启用外部客户访问”和在测试我启用了这个选项,即便如此群集群的容器不能初始化由于错误的使用卷组。

当我读到这个插件的页面(https://hub.docker.com/plugins/nutanix-dvp-docker-volume-plug-in),我也注意到,在释放部分,在version 1.4中,这是提到问题的解决与码头工人群涉及一个bug,这使我认为DVP和码头工人群集群。

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最佳答案JoseNutanix2021年10月15日，10:20

Hi Moises,<\/p>

Thank you for bringing this to our attention. The plugin should work with Docker Swarm (checked internally). I would suggest you open a case and please make sure to include the DVP logs as well as a an explanation to the steps you followed with the tests performed.<\/p>","className":"post__content__best_answer"}">

查看原始
Hi, I have performed tests of the plugin for integration between Volume Groups in a Nutanix cluster with Dockers containers (https:\/\/next.nutanix.com\/karbon-kubernetes-orchestration-30\/nutanix-dvp-docker-volume-plug-in-25371) and (https:\/\/next.nutanix.com\/karbon-kubernetes-orchestration-30\/docker-nutanix-container-volume-plug-in-18726).<\/p>

\u00a0<\/p>

While reading the Docker Volume Plugin documentation at (https:\/\/portal.nutanix.com\/page\/documents\/solutions\/details?targetId=BP-2037-Docker-Containers-on-AHV:BP-2037-Docker-Containers-on-AHV), I did not notice if such a plugin works with Docker containers in swarm mode (Docker swarm cluster).<\/p>

\u00a0<\/p>

I performed some tests with Ubuntu 20.04, forming a Docker swarm cluster with 03 nodes, all VMs with Nutanix Guest Tools installed.\u00a0 All the tests using .yml files for the creation of stacks and services, as for the volumes the tests were made both with the command to create the volumes, as well as in the .yml files. I noticed that the volumes are created normally in the Swarm cluster as well as in the Nutanix cluster, but the Docker containers don't start because they can't use the volumes created. I noticed that the volumes are created on all nodes in the swarm cluster and even though I create stacks with 01 service replica per node or only 01 replica in the swarm cluster on a random node, the container still can't use the volume because it can't initialize.<\/p>

\u00a0<\/p>

\"//www.jhbzcj.com/next/karbon-kubernetes-orchestration-30/\"<\/figure>

\u00a0<\/p>

When I encountered this problem, I found the following link (https:\/\/myvirtualcloud.net\/how-to-implement-docker-swarm-with-postgresql-and-web-services-on-nutanix-acs-for-persistent-volumes\/) that reports the use of DVP in a swarm cluster, stating that you should check an option in the configuration of the volume group in the Nutanix cluster, however I did not find the option informed in the link, the closest I found was the option \"Enable External Client Access\" and in the tests I did with this option enabled, even so the containers in the swarm cluster cannot initialize due to the error in the use of the volume group.<\/p>

\u00a0<\/p>

When I read the plugin's page (https:\/\/hub.docker.com\/plugins\/nutanix-dvp-docker-volume-plug-in), I also noticed that in the Releases section, in version 1.4, it is mentioned the fix of a problem involving a bug with docker swarm, which led me to think that DVP works with Docker swarm cluster.<\/p>","quoteUsername":"Moises S F","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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JoseNutanix
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Userlevel 4
徽章 ＋5

嗨,莫伊塞斯,

谢谢你告诉我们这件事。该插件应该与Docker Swarm一起工作(内部检查)。我建议您打开一个箱子，并请确保包含DVP日志，以及对您执行测试所遵循的步骤的解释。

Jose Gomez |技术营销工程师| jose.gomez@nutanix.com | @pipoe2h
Hi Moises,<\/p>

Thank you for bringing this to our attention. The plugin should work with Docker Swarm (checked internally). I would suggest you open a case and please make sure to include the DVP logs as well as a an explanation to the steps you followed with the tests performed.<\/p>","quoteUsername":"JoseNutanix","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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