devops-1-docker安装

@TOC源码安装docker

yum安装 查看信息

curl -o /etc/yum.repos.d/Centos-7.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum mache
cat /etc/redhat-release
Linux Server release 7.2 (Paladin)
uname -a
Linux  4.9.151-015.3000.7.x86_64 #1 SMP Tue Mar 12 19:10:26 CST 2019 x86_64 x86_64 x86_64 GNU/Linux

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源码安装

下载路径

wget https://download.docker.com/linux/static/stable/x86_64/docker-20.10.8.tgz
tar zxvf docker-20.10.8.tgz
cp docker/* /usr/bin/
 vi /etc/systemd/system/docker.service
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添加内容

[Unit]

Description=Docker Application Container Engine

Documentation=https://docs.docker.com

After=network-online.target firewall.service

Wants=network-online.target

[Service]

Type=notify

#the default is not to use systemd for cgroups because the delegay issues still

#exists and systemd currently does not support the cgroup feature set required

#for containers run by docker

ExecStart=/usr/bin/dockerd

ExecReload=/bin/kill -s HUP $MAINPID

#Having non-zero Limit*s causes performance problems due to accounting overhead

#in the kernel. We recommend using cgroups to do container-local accounting.

LimitNOFILE=infinity

LimitNPROC=infinity

LimitCORE=infinity

#Uncomment TasksMax if your systemd version supports it.

#Only Systemd 226 and above support this version

#TasksMax=infinity

TimeoutStartSec=0

#set delegate yes so that systemd does not reset the cgroups of docker containers

Delegate=yes

#kill only the docker process, not all process in the cgroup

KillMode=process

#restart the docker process if it exits prematurely

Restart=on-failure

StartLimitBurst=3

StartLimitInterval=60s

[Install]

WantedBy=multi-user.target
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配置服务

chmod +x /etc/systemd/system/docker.service

systemctl daemon-reload   #重新加载配置（每次修改文件后需执行）

systemctl start docker.service

systemctl status docker.service

systemctl enable docker.service     ##使服务开启自启
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vi /etc/docker/daemon.json

{
    "registry-mirrors": ["https://registry.docker-cn.com","https://registry.docker-cn.com"]
}
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service docker restart
docker info
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如果想修改docker镜像路径

du -sh /var/lib/docker/
320K	/var/lib/docker/

service docker stop
mkdir -p  var/lib/docker
ln -s /home/xxxx/tmp/docker/var/lib/docker /var/lib/docker
service docker start
ls -ltr | grep docker
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拉取镜像

docker run -d -p 6379:6379 --name redis redis:latest
#du -sh /var/lib/docker/
#240M	/var/lib/docker/
docker ps
CONTAINER ID   IMAGE          COMMAND                  CREATED              STATUS              PORTS                    NAMES
f0e742b9be40   redis:latest   "docker-entrypoint.s…"   About a minute ago   Up About a minute   0.0.0.0:6379->6379/tcp   redis
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brew not git repository

haogeoyes@B-V1WTQ05P-0318 ~ % brew install git
fatal: not in a git directory
Warning: No remote 'origin' in /opt/homebrew/Library/Taps/homebrew/homebrew-cask, skipping update!
fatal: not in a git directory
Warning: No remote 'origin' in /opt/homebrew/Library/Taps/homebrew/homebrew-core, skipping update!
fatal: not in a git directory
Warning: No remote 'origin' in /opt/homebrew/Library/Taps/homebrew/homebrew-services, skipping update!
==> Downloading https://mirrors.ustc.edu.cn/homebrew-bottles/gettext-0.21.arm64_monterey.bottle.tar.gz
Already downloaded: /Users/haogeoyes/Library/Caches/Homebrew/downloads/1de12628f1e5811fc7f479121352d4b4ef79b0747ca029098eb01dab21b5152e--gettext-0.21.arm64_monterey.bottle.tar.gz
==> Downloading https://mirrors.ustc.edu.cn/homebrew-bottles/pcre2-10.40.arm64_monterey.bottle.tar.gz
Already downloaded: /Users/haogeoyes/Library/Caches/Homebrew/downloads/1e1f0fb3ee388c2b582280953cd239d1d312b159c8f2ddf91d947d8928f7f6e6--pcre2-10.40.arm64_monterey.bottle.tar.gz
==> Downloading https://mirrors.ustc.edu.cn/homebrew-bottles/git-2.37.1.arm64_monterey.bottle.tar.gz
Already downloaded: /Users/haogeoyes/Library/Caches/Homebrew/downloads/aa30898350ce97da434638ba666a3b2b293f7db316ba17e092632a049bda3abe--git-2.37.1.arm64_monterey.bottle.tar.gz
==> Installing dependencies for git: gettext and pcre2
==> Installing git dependency: gettext
fatal: not in a git directory
Error: Command failed with exit 128: git

此原因是因为brew 配置问题
haogeoyes@B-V1WTQ05P-0318 ~ % brew -v
Homebrew 3.5.7-11-g8a153de
fatal: unsafe repository ('/opt/homebrew/Library/Taps/homebrew/homebrew-core' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /opt/homebrew/Library/Taps/homebrew/homebrew-core
Homebrew/homebrew-core (no Git repository)
fatal: unsafe repository ('/opt/homebrew/Library/Taps/homebrew/homebrew-cask' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /opt/homebrew/Library/Taps/homebrew/homebrew-cask
Homebrew/homebrew-cask (no Git repository)
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解决此问题先创建目录

haogeoyes@B-V1WTQ05P-0318 ~ % mkdir /opt/homebrew/Library/Taps/homebrew/homebrew-cor
haogeoyes@B-V1WTQ05P-0318 ~ % mkdir /opt/homebrew/Library/Taps/homebrew/homebrew-cask
mkdir: /opt/homebrew/Library/Taps/homebrew/homebrew-cask: File exists
haogeoyes@B-V1WTQ05P-0318 ~ % git config --global --add safe.directory /opt/homebrew/Library/Taps/homebrew/homebrew-core
haogeoyes@B-V1WTQ05P-0318 ~ % git config --global --add safe.directory /opt/homebrew/Library/Taps/homebrew/homebrew-cask
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docker

docker ps
docker images
docker search golang
docker pull golang
docker pull redis
docker rmi -f golang
Untagged: golang:latest
Untagged: golang@sha256:c72fa9afc50b3303e8044cf28fb358b48032a548e1825819420fd40155a131cb
Deleted: sha256:276895edf9673267f47528e8a99401f2d2947f6c9c00490f773d5ed8f559bef2

docker ps
CONTAINER ID   IMAGE          COMMAND                  CREATED          STATUS          PORTS      NAMES
bceb2d3927de   3e42dd4e79c7   "docker-entrypoint.s…"   59 minutes ago   Up 59 minutes   6379/tcp   nifty_black

docker stop bceb2d3927de
#导出
docker save redis  -o redis.tar
#加载
docker load -i redis.tar
Loaded image: redis:latest

docker images
REPOSITORY   TAG       IMAGE ID       CREATED      SIZE
redis        latest    3e42dd4e79c7   3 days ago   117MB
#镜像tag
docker tag redis:latest redis:pro
docker images
REPOSITORY   TAG       IMAGE ID       CREATED      SIZE
redis        latest    3e42dd4e79c7   3 days ago   117MB
redis        pro       3e42dd4e79c7   3 days ago   117MB

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# -it 表示 与容器进行交互式启动 -d 表示可后台运行容器 （守护式运行）  --name 给要运行的容器 起的名字  /bin/bash  交互路径
docker run -it -d --name 要取的别名 镜像名:Tag /bin/bash
docker run -it -d --name redis_docker redis:pro /bin/bash
docker ps
CONTAINER ID   IMAGE       COMMAND                  CREATED          STATUS          PORTS      NAMES
7246c5799195   redis:pro   "docker-entrypoint.s…"   10 minutes ago   Up 10 minutes   6379/tcp   redis_docker
docker rename 容器ID/容器名 新容器名
docker exec -it 容器名/容器ID /bin/bash
docker attach 容器名/容器ID
#-----直接退出  未添加 -d(持久化运行容器) 时 执行此参数 容器会被关闭  
exit
# 优雅提出 --- 无论是否添加-d 参数 执行此命令容器都不会被关闭
Ctrl + p + q
docker stop 容器ID/容器名
docker restart 容器ID/容器名
docker start 容器ID/容器名
docker kill 容器ID/容器名

#从容器内 拷出
docker cp 容器ID/名称: 容器内路径  容器外路径
#从外部 拷贝文件到容器内
docker  cp 容器外路径 容器ID/名称: 容器内路径
docker logs -f --tail=要查看末尾多少行 默认all 容器ID
docker run -d -p 6379:6379 --name redis --restart=always  -v /var/lib/redis/data/:/data -v /var/lib/redis/conf/:/usr/local/etc/redis/redis.conf  redis:5.0.5 --requirepass "password"

虚拟机创建镜像
docker commit -m="提交信息" -a="作者信息" 容器名/容器ID 提交后的镜像名:Tag
docker commit eafd9111ada6 docker/lua

#  删除异常停止的容器
docker rm `docker ps -a | grep Exited | awk '{print $1}'` 
 
#  删除名称或标签为none的镜像
docker rmi -f  `docker images | grep '' | awk '{print $3}'`
查找大文件
find / -type f -size +100M -print0 | xargs -0 du -h | sort -nr
查找制定大小we年
find / -type f -size +100M -print0 | xargs -0 du -h | sort -nr |grep '/var/lib/docker/overlay2/*'

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完全清理镜像

docker rmi -f imagename
cd /var/lib/docker 
rm -fr *
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可用镜像

docker ps -a
docker search centos
docker pull search
# docker run -it -d --name test centos /bin/bash

docker attach 44fc0f0582d9  
docker exec -it 23 /bin/bash
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docker -itd centos
docker run -di -v /var/lib/docker:/mnt -p 6666:6666 centos
docker exec -it 1c63a9800e7c /bin/bash
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下载镜像

docker pull centos:centos7
wget -O ./CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo

docker build -t gozero:v1 .

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Dockerfile

gozero安装

FROM centos:centos7
RUN yum -y install wget
RUN wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
RUN wget  -O /etc/yum.repos.d/go-repo.repo https://mirror.go-repo.io/centos/go-repo.repo
# RUN yum clean all
# RUN yum makecache
RUN yum -y install go
RUN mkdir -p  /root/go/bin
RUN go env -w GO111MODULE=on
RUN go env -w GOPROXY=https://mirrors.aliyun.com/goproxy/,direct
RUN go install github.com/zeromicro/go-zero/tools/goctl@latest
https://gitee.com/kevwan/go-zero/tree/master/tools/goctl

vi ~/.bash_profile
export PATH=$PATH:/Users/chenhaohao/go/bin
source ~/.bash_profile
wget https://github.com/protocolbuffers/protobuf/releases/download/v21.4/protoc-21.4-osx-x86_64.zip
yum -y install unzip
unzip protoc-21.4-osx-x86_64.zip
mv bin/protoc ../go/bin/
go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
wget https://github.com/protocolbuffers/protobuf/releases/download/v21.4/protoc-21.4-osx-x86_64.zip


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docker build -t gozero:v1 .

虚拟机备份镜像
docker commit 85e12a9736b7 gozero:latest
启动虚拟机
docker run -itd -v /var/lib/docker:/data -p 6666:6666 gozero