Docker 的一些命令技术

maybe yes 发表于 2021-09-09 18:10

Docker 的一些常用命令!

-i 交互,-t 终端

pi@raspberrypi:~ $ sudo docker run -i -t ubuntu /bin/bash
root@593b84502134:/# pwd
root@593b84502134:/# df -h
Filesystem      Size  Used Avail Use% Mounted on
overlay         117G   58G   55G  52% /
tmpfs            64M     0   64M   0% /dev
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
shm              64M     0   64M   0% /dev/shm
/dev/root       117G   58G   55G  52% /etc/hosts
tmpfs           3.9G     0  3.9G   0% /proc/asound
tmpfs           3.9G     0  3.9G   0% /sys/firmware
root@593b84502134:/# ls /
bin  boot  dev  etc  home  lib  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
root@593b84502134:/# du -sh /*
0	/bin
4.0K	/boot
0	/dev
628K	/etc
4.0K	/home
0	/lib
4.0K	/media
4.0K	/mnt
4.0K	/opt
du: cannot access '/proc/11/task/11/fd/3': No such file or directory
du: cannot access '/proc/11/task/11/fdinfo/3': No such file or directory
du: cannot access '/proc/11/fd/3': No such file or directory
du: cannot access '/proc/11/fdinfo/3': No such file or directory
0	/proc
12K	/root
20K	/run
0	/sbin
4.0K	/srv
0	/sys
4.0K	/tmp
66M	/usr
4.5M	/var

Raspberry Pi 安装 Docker技术

maybe yes 发表于 2021-09-09 17:38

Docker 在树莓派 arm64 的安装!Docker 安装命令,无需 sudo。

curl -sSL https://get.docker.com | sh

curl -sSL https://get.docker.com | sh
# Executing docker install script, commit: 93d2499759296ac1f9c510605fef85052a2c32be
+ sudo -E sh -c apt-get update -qq >/dev/null
+ sudo -E sh -c DEBIAN_FRONTEND=noninteractive apt-get install -y -qq apt-transport-https ca-certificates curl >/dev/null
+ sudo -E sh -c curl -fsSL "https://download.docker.com/linux/debian/gpg" | gpg --dearmor --yes -o /usr/share/keyrings/docker-archive-keyring.gpg
gpg: 警告:家目录‘/home/pi/.gnupg’的所有权不安全
+ sudo -E sh -c echo "deb [arch=arm64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/debian buster stable" > /etc/apt/sources.list.d/docker.list
+ sudo -E sh -c apt-get update -qq >/dev/null
+ sudo -E sh -c DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends  docker-ce-cli docker-ce >/dev/null
E: Sub-process /usr/bin/dpkg returned an error code (1)
pi@raspberrypi:~/bak $ 
pi@raspberrypi:~/bak $ docker

Usage:  docker [OPTIONS] COMMAND

A self-sufficient runtime for containers

      --config string      Location of client config files (default "/home/pi/.docker")
  -c, --context string     Name of the context to use to connect to the daemon (overrides DOCKER_HOST env var and default context set with "docker context use")
  -D, --debug              Enable debug mode
  -H, --host list          Daemon socket(s) to connect to
  -l, --log-level string   Set the logging level ("debug"|"info"|"warn"|"error"|"fatal") (default "info")
      --tls                Use TLS; implied by --tlsverify
      --tlscacert string   Trust certs signed only by this CA (default "/home/pi/.docker/ca.pem")
      --tlscert string     Path to TLS certificate file (default "/home/pi/.docker/cert.pem")
      --tlskey string      Path to TLS key file (default "/home/pi/.docker/key.pem")
      --tlsverify          Use TLS and verify the remote
  -v, --version            Print version information and quit

Management Commands:
  app*        Docker App (Docker Inc., v0.9.1-beta3)
  builder     Manage builds
  buildx*     Build with BuildKit (Docker Inc., v0.6.1-docker)
  config      Manage Docker configs
  container   Manage containers
  context     Manage contexts
  image       Manage images
  manifest    Manage Docker image manifests and manifest lists
  network     Manage networks
  node        Manage Swarm nodes
  plugin      Manage plugins
  secret      Manage Docker secrets
  service     Manage services
  stack       Manage Docker stacks
  swarm       Manage Swarm
  system      Manage Docker
  trust       Manage trust on Docker images
  volume      Manage volumes

  attach      Attach local standard input, output, and error streams to a running container
  build       Build an image from a Dockerfile
  commit      Create a new image from a container's changes
  cp          Copy files/folders between a container and the local filesystem
  create      Create a new container
  diff        Inspect changes to files or directories on a container's filesystem
  events      Get real time events from the server
  exec        Run a command in a running container
  export      Export a container's filesystem as a tar archive
  history     Show the history of an image
  images      List images
  import      Import the contents from a tarball to create a filesystem image
  info        Display system-wide information
  inspect     Return low-level information on Docker objects
  kill        Kill one or more running containers
  load        Load an image from a tar archive or STDIN
  login       Log in to a Docker registry
  logout      Log out from a Docker registry
  logs        Fetch the logs of a container
  pause       Pause all processes within one or more containers
  port        List port mappings or a specific mapping for the container
  ps          List containers
  pull        Pull an image or a repository from a registry
  push        Push an image or a repository to a registry
  rename      Rename a container
  restart     Restart one or more containers
  rm          Remove one or more containers
  rmi         Remove one or more images
  run         Run a command in a new container
  save        Save one or more images to a tar archive (streamed to STDOUT by default)
  search      Search the Docker Hub for images
  start       Start one or more stopped containers
  stats       Display a live stream of container(s) resource usage statistics
  stop        Stop one or more running containers
  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
  top         Display the running processes of a container
  unpause     Unpause all processes within one or more containers
  update      Update configuration of one or more containers
  version     Show the Docker version information
  wait        Block until one or more containers stop, then print their exit codes

Run 'docker COMMAND --help' for more information on a command.

To get more help with docker, check out our guides at https://docs.docker.com/go/guides/

kafka 的一些命令技术

maybe yes 发表于 2021-09-07 11:43

启动 Zookeeper

bin/zookeeper-server-start.sh config/zookeeper.properties

启动 kafka

bin/kafka-server-start.sh config/server.properties


bin/kafka-consumer-groups.sh --list --bootstrap-server localhost:9092

消费 from beginning

 bin/kafka-console-consumer.sh --topic quickstart-events --from-beginning --bootstrap-server localhost:9092

Golang 报错记录技术

maybe yes 发表于 2021-09-04 11:33

golang 学习记录,代码记录,报错记录

使用 gin net/http 创建一个 web 服务

_ := http.ListenAndServe(":9090", nil) // 不需要冒号
./gin1.go:14:4: no new variables on left side of :=
package main

import (

func sayHello (w http.ResponseWriter, r *http.Request) {
        _, _ = fmt.Fprintln(w, "Hello")

func main () {
        http.HandleFunc("/hello", sayHello)
        _ = http.ListenAndServe(":9090", nil)

Golang 学习笔记技术

maybe yes 发表于 2021-08-31 04:14

golang 学习笔记,语法特点,快速入门,一小时入门。

花括号 { 不可以单独一行


import 合并写法

import "fmt"

import {


// 1
var a int
// 默认为 0

// 2
var b int = 1

// 3
var c = 1

// 4 只能使用在函数内
d := 1
// 打印类型
fmt.Printf("%T\n", d)

// 5 声明多个
var a, b int = 1, 2
var x, y = 1, "a"

var (
    a int = 1
    b bool = true
2021-09-25 21:15:36 1632575736 0.005467