成人免费无遮挡无码黄漫视频_国产在线国偷精品免费看_国自产拍亚洲免费视频_人与牲动交XXXXBBBB

CENTOS7下開(kāi)啟Docker(入門(mén)篇)

CENTOS7下開(kāi)啟Docker(入門(mén)篇) 2020-10-29

CENTOS7下開(kāi)啟Docker,CenterOS7安裝docker要求內(nèi)核版本在3.10以上(uname -r)

yum install docker

啟動(dòng)docker

systemctl start docker

版本查看

docker version

%title插圖%num
docker version 啟動(dòng)和停止時(shí)候顯示不一樣

狀態(tài)查看 systemctl status docker

Default
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
   Active: active (running) since 四 2020-10-29 10:44:33 CST; 8s ago
     Docs: http://docs.docker.com
Main PID: 6096 (dockerd-current)
   CGroup: /system.slice/docker.service
           ├─6096 /usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --exec-opt native.cgroupdrive
           └─6107 /usr/bin/docker-containerd-current -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --metrics-interval=0 --start-timeout 2m --state-dir
 
10月 29 10:44:32 vip1.92k.xin dockerd-current[6096]: time="2020-10-29T10:44:32.133897123+08:00" level=info msg="libcontainerd: new containerd process, pid: 6107"
10月 29 10:44:33 vip1.92k.xin dockerd-current[6096]: time="2020-10-29T10:44:33.511531824+08:00" level=info msg="Graph migration to content-addressability took 0.00 seco
10月 29 10:44:33 vip1.92k.xin dockerd-current[6096]: time="2020-10-29T10:44:33.514168291+08:00" level=info msg="Loading containers: start."
10月 29 10:44:33 vip1.92k.xin dockerd-current[6096]: time="2020-10-29T10:44:33.532101146+08:00" level=info msg="Firewalld running: true"
10月 29 10:44:33 vip1.92k.xin dockerd-current[6096]: time="2020-10-29T10:44:33.747994444+08:00" level=info msg="Default bridge (docker0) is assigned with an IP address
10月 29 10:44:33 vip1.92k.xin dockerd-current[6096]: time="2020-10-29T10:44:33.865758833+08:00" level=info msg="Loading containers: done."
10月 29 10:44:33 vip1.92k.xin dockerd-current[6096]: time="2020-10-29T10:44:33.929515913+08:00" level=info msg="Daemon has completed initialization"
10月 29 10:44:33 vip1.92k.xin dockerd-current[6096]: time="2020-10-29T10:44:33.929568648+08:00" level=info msg="Docker daemon" commit="64e9980/1.13.1" graphdriver=overl
10月 29 10:44:33 vip1.92k.xin dockerd-current[6096]: time="2020-10-29T10:44:33.953292472+08:00" level=info msg="API listen on /var/run/docker.sock"
10月 29 10:44:33 vip1.92k.xin systemd[1]: Started Docker Application Container Engine.

docker 國(guó)內(nèi)加速,這里其實(shí)改變的就是 倉(cāng)庫(kù) 的位置。

編輯 /etc/docker/deamon.json,然后重啟 docker，內(nèi)容如下：

Default
1
2
3
{
  "registry-mirrors": ["http://hub-mirror.c.163.com", "https://registry.docker-cn.com"]
}

下面我們來(lái)用docker來(lái)啟用一個(gè)nginx

首先我們需要查找nginx的鏡像(從倉(cāng)庫(kù)里面查找鏡像) docker search nginx

Default
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
INDEX       NAME                                         DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
docker.io   docker.io/nginx                              Official build of Nginx.                        13930     [OK]      
docker.io   docker.io/jwilder/nginx-proxy                Automated Nginx reverse proxy for docker c...   1901                 [OK]
docker.io   docker.io/richarvey/nginx-php-fpm            Container running Nginx + PHP-FPM capable ...   791                  [OK]
docker.io   docker.io/linuxserver/nginx                  An Nginx container, brought to you by Linu...   128                  
docker.io   docker.io/jc21/nginx-proxy-manager           Docker container for managing Nginx proxy ...   103                  
docker.io   docker.io/tiangolo/nginx-rtmp                Docker image with Nginx using the nginx-rt...   99                   [OK]
docker.io   docker.io/bitnami/nginx                      Bitnami nginx Docker Image                      90                   [OK]
docker.io   docker.io/alfg/nginx-rtmp                    NGINX, nginx-rtmp-module and FFmpeg from s...   78                   [OK]
docker.io   docker.io/jlesage/nginx-proxy-manager        Docker container for Nginx Proxy Manager        64                   [OK]
docker.io   docker.io/nginxdemos/hello                   NGINX webserver that serves a simple page ...   62                   [OK]
docker.io   docker.io/nginx/nginx-ingress                NGINX Ingress Controller for Kubernetes         43                  
docker.io   docker.io/privatebin/nginx-fpm-alpine        PrivateBin running on an Nginx, php-fpm & ...   39                   [OK]
docker.io   docker.io/nginxinc/nginx-unprivileged        Unprivileged NGINX Dockerfiles                  19                  
docker.io   docker.io/schmunk42/nginx-redirect           A very simple container to redirect HTTP t...   19                   [OK]
docker.io   docker.io/centos/nginx-112-centos7           Platform for running nginx 1.12 or buildin...   15                  
docker.io   docker.io/nginx/nginx-prometheus-exporter    NGINX Prometheus Exporter                       15                  
docker.io   docker.io/centos/nginx-18-centos7            Platform for running nginx 1.8 or building...   13                  
docker.io   docker.io/raulr/nginx-wordpress              Nginx front-end for the official wordpress...   13                   [OK]
docker.io   docker.io/staticfloat/nginx-certbot          Opinionated setup for automatic TLS certs ...   13                   [OK]
docker.io   docker.io/bitwarden/nginx                    The Bitwarden nginx web server acting as a...   7                    
docker.io   docker.io/mailu/nginx                        Mailu nginx frontend                            7                    [OK]
docker.io   docker.io/sophos/nginx-vts-exporter          Simple server that scrapes Nginx vts stats...   7                    [OK]
docker.io   docker.io/bitnami/nginx-ingress-controller   Bitnami Docker Image for NGINX Ingress Con...   6                    [OK]
docker.io   docker.io/ansibleplaybookbundle/nginx-apb    An APB to deploy NGINX                          1                    [OK]
docker.io   docker.io/wodby/nginx                        Generic nginx                                   1                    [OK]

僅僅為了測(cè)試，我們選擇官方鏡像（docker.io/nginx），下面我們拉取鏡像 docker pull docker.io/nginx

Default
1
2
3
4
5
6
7
8
9
10
Using default tag: latest
Trying to pull repository docker.io/library/nginx ...
latest: Pulling from docker.io/library/nginx
bb79b6b2107f: Pull complete
111447d5894d: Pull complete
a95689b8e6cb: Pull complete
1a0022e444c2: Pull complete
32b7488a3833: Pull complete
Digest: sha256:ed7f815851b5299f616220a63edac69a4cc200e7f536a56e421988da82e44ed8
Status: Downloaded newer image for docker.io/nginx:latest

查看本地鏡像 docker images -a

Default
1
2
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
docker.io/nginx     latest              f35646e83998        2 weeks ago         133 MB

啟用docker 下面的nginx，為了方便看效果，我們需要停止一下外面的nginx(/web/nginx/sbin/nginx -s stop)。

docker run –name nginx-test -p 80:80 -d nginx

1ac537ed852f725cfe36976f1476267a41885b345e8d5d31411f7abaf30bcc64

啟動(dòng)成功后，系統(tǒng)會(huì)給出容器ID。

-d 啟用后臺(tái)進(jìn)程。 -p 做了端口映射。 -name 作為容器別名。

查看進(jìn)程：docker ps -a

Default
1
2
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                NAMES
1ac537ed852f        nginx               "/docker-entrypoin..."   2 minutes ago       Up 2 minutes        0.0.0.0:80->80/tcp   nginx-test

我們可以看到 container ID 為后端的容器ID前一段。 NAMES為我們起的容器別名，PORTS給出了端口映射。

停止進(jìn)程: docker stop nginx-test

停止后，我們用docker ps -a 查看

Default
1
2
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                      PORTS               NAMES
1ac537ed852f        nginx               "/docker-entrypoin..."   4 minutes ago       Exited (0) 14 seconds ago                       nginx-test

status狀態(tài)發(fā)生了改變，由原來(lái)的UP狀態(tài)改成了 Exited(0)。

我們重新運(yùn)行 docker run –name nginx-test -p 80:80 -d nginx

Default
1
2
/usr/bin/docker-current: Error response from daemon: Conflict. The container name "/nginx-test" is already in use by container 1ac537ed852f725cfe36976f1476267a41885b345e8d5d31411f7abaf30bcc64. You have to remove (or rename) that container to be able to reuse that name..
See '/usr/bin/docker-current run --help'.

系統(tǒng)告訴我們，需要?jiǎng)h除，或者改名 nignx-test。 docker rm nginx-test

我們可以用 docker start [容器ID|容器別名] 啟動(dòng)。

我們重新跑一下nginx，我們需要看下外面的世界。

%title插圖%num

好了，docker的基本體驗(yàn)完畢，我們要清理一下咯。

docker stop nginx-test //停止我們的nginx-test 容器

docker rm nginx-test //刪除我們的nginx-test 容器

docker rmi nginx -f //刪除我們之前下載的nginx 鏡像