标签: moby

我尝试从容器中给出以下命令,发现下面的问题,可能是因为"-moby"内核版本.我们不能在Linux内核版本中没有"-moby"字样的情况下获得docker镜像.

我尝试在拥有ubuntu的VM上安装linux perf工具,但它确实有效.

#docker run -t -i ubuntu:14.04 /bin/bash

root@214daea94f4f:/# perf

WARNING: perf not found for kernel 4.9.41

You may need to install the following packages for this specific kernel:

linux-tools-4.9.41-moby
linux-cloud-tools-4.9.41-moby

You may also want to install one of the following packages to keep up to date:

linux-tools-moby-lts-<series>
linux-cloud-tools-moby-lts-<series>

所以我有一个非常简单的 Docker Swarm 集群，首先我像这样初始化它：

apt-get update && apt-get upgrade
apt install docker docker-compose

docker stack deploy --prune --compose-file=docker-compose.yml testapp

这是docker-compose.yml文件：

version: "3.7"

services:
  db:
    image: postgres:10.5-alpine
    environment:
      - POSTGRES_DB=test_app_production
      - POSTGRES_USER=test_app_user
      - POSTGRES_PASSWORD=test_app_password
    ports:
      - "5432:5432"
    deploy:
      replicas: 1
      restart_policy:
        condition: "on-failure"

  redis:
    image: redis:4.0.11-alpine
    ports:
      - "6379:6379"
    deploy:
      replicas: 1
      restart_policy:
        condition: "on-failure"

如何查询 docker DNS 中的 SRV 记录？我知道我可以查询 DNS 并获得循环答案：

ping db

但是我如何告诉集群每个服务有哪些 SRV 记录，以及如何从其他容器查询它们？

我正在尝试使用 docker go 客户端创建一个具有内存限制的容器 - https://godoc.org/github.com/docker/docker/client#Client.ContainerCreate 但是我无法弄清楚在函数中添加这些参数的位置.

docker run -m 250m --name test repo/tag

在 docker api 中，它位于 Host Config 结构下，但在 go doc 中我看到了 HostConfig 中使用的资源下的选项 - https://godoc.org/github.com/docker/docker/api/types/container#HostConfig

像这样打电话

import(
....
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/events"
"github.com/docker/docker/api/types/filters"
"github.com/docker/docker/client"
"github.com/docker/go-connections/nat"
)

...

resp, err1 := cli.ContainerCreate(ctx,
    &container.Config{
            User:         strconv.Itoa(os.Getuid()), // avoid permission issues
            Image:        cfg.ImageName,
            AttachStdin:  false,
            AttachStdout: true,
            AttachStderr: true,
            Tty:          true,
            ExposedPorts: exposedPorts,
            Labels:       labels,
            Env:          envVars,
    },
    &container.HostConfig{
            Binds:       binds,
            NetworkMode: container.NetworkMode(cfg.Network),
            PortBindings: nat.PortMap{
                    "1880": []nat.PortBinding{
                            nat.PortBinding{
                                    HostIP:   "",
                                    HostPort: …

我有一个 CentOS 7 的 docker 镜像，它通过推荐的说明安装了 docker-ce 。IE

RUN yum-config-manager \
  --add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
RUN yum install -y yum-utils \
  device-mapper-persistent-data \
  lvm2
RUN yum update -y
RUN yum install -y docker-ce docker-ce-cli containerd.io

最近这停止工作，现在失败如下：

--> Processing Conflict: moby-containerd-1.3.6+azure-1.x86_64 conflicts containerd
--> Processing Conflict: moby-runc-1.0.0~rc10+azure-2.x86_64 conflicts runc
--> Finished Dependency Resolution
Error: moby-containerd conflicts with containerd.io-1.2.13-3.2.el7.x86_64
Error: moby-runc conflicts with containerd.io-1.2.13-3.2.el7.x86_64
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles …