Docker容器正在运行,但其过程已完成

时间:2019-01-03 15:30:43

标签: node.js typescript docker

我在docker容器中运行我的打字稿应用程序。有时会发生应用程序完成的情况,但是容器仍处于运行状态。这怎么可能呢?我当时以为我忘记了被拒绝的Promise或忘记了关闭流,但是在那种情况下,docker top myContainer会告诉我,主流程仍在运行,对吗?

Docker ps:

docker ps
5c63b442af79        filipxxx/v2x_communication   "npm run start ether…"   2 hours ago         Up 2 hours        vehicle2

Docker顶部:

docker top vehicle2
UID                 PID                 PPID                C                   STIME  

Docker检查:

docker inspect vehicle2
[
    {
        "Id": "5c63b442af799b8ff3b83d7c53e1ccfd2a290d469b58b10970217aa987e963f9",
        "Created": "2019-01-03T13:26:50.947651153Z",
        "Path": "npm",
        "Args": [
            "run",
            "start",
            "ethereum",
            "172.21.0.3:8545",
            "run-producer",
            "2",
            "100",
            "0xfb69fd63952d243fc235b91ff7bc49f9cd4a31f8"
        ],
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 46799,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2019-01-03T13:33:52.860979672Z",
            "FinishedAt": "0001-01-01T00:00:00Z"
        },
...

令人惊讶的是,在运行docker exec -i vehicle2 echo 'hello world'时,它返回了我:cannot exec in a stopped state: unknown

下面是dockerfile,我用来构建映像。

FROM node:8

WORKDIR /v2x_communication
COPY . /v2x_communication

RUN npm install && npm run build

ENTRYPOINT ["npm", "run"]

即使我运行docker stop vehicle2,它也成功退出,但是vehicle2仍列在docker ps下,并且docker inspect vehicle2仍在说它处于运行状态。

Docker信息:

Containers: 50
 Running: 48
 Paused: 0
 Stopped: 2
Images: 150
Server Version: 18.09.0
Storage Driver: overlay2
 Backing Filesystem: extfs
 Supports d_type: true
 Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: active
 NodeID: sah8xlcjnxbq13uofznqrjs6e
 Is Manager: false
 Node Address: 10.132.0.5
 Manager Addresses:
  10.132.0.2:2377
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: c4446665cb9c30056f4998ed953e6d4ff22c7c39
runc version: 4fc53a81fb7c994640722ac585fa9ca548971871
init version: fec3683
Security Options:
 apparmor
 seccomp
  Profile: default
Kernel Version: 4.15.0-1026-gcp
Operating System: Ubuntu 18.04.1 LTS
OSType: linux
Architecture: x86_64
CPUs: 48
Total Memory: 94.41GiB
Name: vehicle-fleet-big-1
ID: OAVG:6QVR:EH3F:OYNO:ADC4:QDAN:R2AF:LSSV:2VSI:IJWJ:PJH2:LJVP
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
 127.0.0.0/8
Live Restore Enabled: false
Product License: Community Engine

WARNING: No swap limit support

1 个答案:

答案 0 :(得分:1)

要么您发现了一个错误,要么是某种原因使容器保持打开状态。我能找到的最接近的问题是较旧的#30927。我将开始研究dockerd和OS日志,以查看是否可以找到任何错误。对于dockerd,在系统环境中位于journalctl -u docker中。在OS上,/ var / log下的任何内容都可以开始调试。我能想象到的潜在障碍包括:

  • 填充程序失败,或者runc卡在僵尸状态
  • 无法释放的安装,可能正在尝试读取docker文件系统中的文件
  • 查询尚未退出的容器的命令,也许有些东西会拉出许多挂起的日志,等待管道/缓冲区清除

如果找不到任何东西,则在Moby / Moby回购中出现问题可能是适当的,但如果没有任何错误记录,指出原因或复制方法,将很难解决。

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