docker - Linux和Windows上的Docker-Compose之间有区别吗？

Question

我遇到了Linux和Windows之间的部署差异的问题。我有以下Docker-Compose文件:

version: '3'

services:

  elasticsearch:

    image: docker.elastic.co/elasticsearch/elasticsearch:6.3.0
    ports:
      - 9200:9200
    volumes:
      - elasticsearch_data:/usr/share/elasticsearch/data
    environment:
      discovery.type: single-node
      cluster.routing.allocation.disk.threshold_enabled: "false"
    networks:
      logmetric:

  kibana:
    image: docker.elastic.co/kibana/kibana:6.3.0
    ports:
      - 5601:5601
    networks:
      logmetric:
    depends_on:
      - elasticsearch

  influxdb:
    image: influxdb
    ports:
      - 8086:8086
    volumes:
      # Data persistency
      - influxdb_data:/var/lib/influxdb
    networks:
      logmetric:

  grafana:
    image: grafana/grafana
    ports:
      - 3000:3000
    volumes:
    # Data persistency
    - grafana_data:/var/lib/grafana
    networks:
      logmetric:

volumes:
  elasticsearch_data:
  influxdb_data:
  grafana_data:

networks:
  logmetric:
    driver: 'bridge'

当我在 Windows 上执行 Docker-Compose -f compose_logging.yaml up时，一切正常旋转，并且所有服务都在工作。 但是，如果我将这个yaml文件转移到我的linux计算机(CentOS 8)上并执行相同的命令，则，Kibana无法连接到 flex 搜索数据库。我收到错误:

kibana_1 | {"type":"log","@timestamp":"2020-04-03T21:41:42Z","tags":["warning","elasticsearch","admin"],"pid":1,"message":"Unable to revive connection: http://elasticsearch:9200/"} kibana_1 | {"type":"log","@timestamp":"2020-04-03T21:41:42Z","tags":["warning","elasticsearch","admin"],"pid":1,"message":"No living connections"}

如果我在linux机器(即elasticsearch数据库)上“curl http://localhost:9200”，则会得到响应。因此，我相信启动起来并在等待连接。响应:

{
  "name" : "CQ7jdN0",
  "cluster_name" : "docker-cluster",
  "cluster_uuid" : "swSAp0kUR7iQpqTpW3Iv_g",
  "version" : {
    "number" : "6.3.0",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "424e937",
    "build_date" : "2018-06-11T23:38:03.357887Z",
    "build_snapshot" : false,
    "lucene_version" : "7.3.1",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

如果我在docker网络( docker inspect andy_logmetric)上进行检查，则会得到 LINUX 网络的以下信息:

[andy@Dev_Linux ~]$ docker inspect andy_logmetric
[
    {
        "Name": "andy_logmetric",
        "Id": "1d6544f05915e1673c5f541bcfe024fc3ad3d445cba43f0109a4bbd1e9faf9a0",
        "Created": "2020-04-03T15:59:24.036741117-04:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "172.18.0.0/16",
                    "Gateway": "172.18.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": true,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "091975207ec170c3c98223030add8f9b134f35b1aa05fd2016a31d985c73bc7f": {
                "Name": "andy_elasticsearch_1",
                "EndpointID": "b8263230459db25d873a79dff94e7d6b0a3cb8a2ed6bfff149559b54748e93cc",
                "MacAddress": "02:42:ac:12:00:04",
                "IPv4Address": "172.18.0.4/16",
                "IPv6Address": ""
            },
            "10a22cc7ef65897417f58e0928598066ad899f25d43e2429c903282f5e74cef2": {
                "Name": "andy_kibana_1",
                "EndpointID": "1f8998efd1c61a40b9876ffd6502f0ec371ec926b5cd1e7851bd6dd31074c1c5",
                "MacAddress": "02:42:ac:12:00:05",
                "IPv4Address": "172.18.0.5/16",
                "IPv6Address": ""
            },
            "542d6b764b084d99895f89c881aaf6fdf42edf63494edcd233dd35445706e3fc": {
                "Name": "andy_influxdb_1",
                "EndpointID": "4247f8fcb961e75fab6662133df9eb012a70707757db5ea6c37d7812c018f520",
                "MacAddress": "02:42:ac:12:00:03",
                "IPv4Address": "172.18.0.3/16",
                "IPv6Address": ""
            },
            "e6fead6035cdb7b60e81114f124fa87084b7eb6b92c9b3800e66072dbcc82ba3": {
                "Name": "andy_grafana_1",
                "EndpointID": "9a0c892237fe891ef6e714bf8292857c9e2d68ac0f6abd7a99eba6daf6971f3c",
                "MacAddress": "02:42:ac:12:00:02",
                "IPv4Address": "172.18.0.2/16",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {
            "com.docker.compose.network": "logmetric",
            "com.docker.compose.project": "andy",
            "com.docker.compose.version": "1.25.4"
        }
    }
]

对于 WINDOWS 网络，我得到以下信息:

PS C:\Users\Michael> docker inspect docker-composefiles_logmetric
[
    {
        "Name": "docker-composefiles_logmetric",
        "Id": "d1bebbe4e73097fb6dcb4ab15750e2689e2e57da83e880b065063dcde055e576",
        "Created": "2020-04-03T21:24:14.531822721Z",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "172.18.0.0/16",
                    "Gateway": "172.18.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": true,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "0820891e073e7e05cbcc7ab834cc599c640e6518bb36c848052b6a6c11b5c069": {
                "Name": "docker-composefiles_grafana_1",
                "EndpointID": "4e2c85709e89fd4b3bb609fc53eb4a4538b1fd93e51cfd73d8dc030d7707d6e3",
                "MacAddress": "02:42:ac:12:00:03",
                "IPv4Address": "172.18.0.3/16",
                "IPv6Address": ""
            },
            "8ada45e8a940102fe3145dee290af2da06d46d8bd465411da48bddf18d22167a": {
                "Name": "docker-composefiles_elasticsearch_1",
                "EndpointID": "5cc9b924eb46a7bc1bc07d3985779a1e0bf9ac4012c12333d6cbb96e3f78af2d",
                "MacAddress": "02:42:ac:12:00:04",
                "IPv4Address": "172.18.0.4/16",
                "IPv6Address": ""
            },
            "902bec9dc51e542589a3da1f13648a3434bc2d10b6c5755adfa545d813032c18": {
                "Name": "docker-composefiles_influxdb_1",
                "EndpointID": "a0e5e49121616590260b04932b6943601f06dc3200564f9155ce2f2281625cf9",
                "MacAddress": "02:42:ac:12:00:02",
                "IPv4Address": "172.18.0.2/16",
                "IPv6Address": ""
            },
            "c054af26402fcbee5c9e727b8a3e8b009fd258734f060e1fc9dc19ade5f7f3fa": {
                "Name": "docker-composefiles_kibana_1",
                "EndpointID": "3f57dcaefde331cfa7bdc862f45a0dc95829cb89604b28347d8c452f0f60f396",
                "MacAddress": "02:42:ac:12:00:05",
                "IPv4Address": "172.18.0.5/16",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {
            "com.docker.compose.network": "logmetric",
            "com.docker.compose.project": "docker-composefiles",
            "com.docker.compose.version": "1.25.4"
        }
    }
]

转储这两个文件并运行比较只会产生明显的ID和项目名称不同。

如果我用Chrome按下kibana，则在Windows上一切正常。在linux kibana上，我进入一个禁用的登录屏幕，该屏幕显示您无法立即登录并查看日志。 (错误消息在上方)

网络看起来一样，但是Kibana无法在Linux上访问 flex 搜索数据库，但可以在Windows上访问。

linux计算机上的docker版本如下:

Docker version 19.03.8, build afacb8b
[andy@Dev_Linux ~]$ docker-compose --version
docker-compose version 1.25.4, build 8d51620a

Windows机器上的docker版本如下:

Docker version 19.03.8, build afacb8b
PS C:\Users\Michael> docker-compose --version
docker-compose version 1.25.4, build 8d51620a

我不知道还要找什么。是否对Linux环境中可能发生的事情有任何想法？

Answer 1

检查此链接:

https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html#docker-prod-prerequisites

我记得在centos上遇到麋鹿问题，并且在主机上设置内核参数很有帮助。

Docker编写仅仅是docker命令本身上出现的python脚本，因此问题不在于此。事实很可能是，在Windows上您可能使用的是docker-machine，这是linux hyper-v vm，而在centos上则是真正的linux，因此有所不同。

您还可以检查docker log [container name]以查看elasticsearch在控制台上是否未显示任何警告。

您可以尝试的另一种检查方法是使用docker exec -it /bin/sh放入容器并ping其他容器。 Docker使用系统内部创建的网络，因此，如果网络中您的centos服务器位于与docker创建的子网相同的子网中，则主机路由机制可能会将数据包发送到“真实”网络，而不是在docker内部。