实习四十：部署project_exam_system项目——及容器的编排

（一）安装docker、编辑daemon.json文件、安装docker-compose编排容器、启动docker
1.环境准备

[root@docker--1 ~]# rz -E
 
rz waiting to receive.
 
[root@docker--1 ~]# ls
 
anaconda-ks.cfg  docker.sh
 
[root@docker--1 ~]# source docker.sh 
 
[root@docker--1 ~]# vim /etc/docker/daemon.json 
 
[root@docker--1 ~]# vim /usr/lib/systemd/system/docker.service
 
[root@docker--1 ~]# systemctl daemon-reload
 
[root@docker--1 ~]# systemctl start docker

脚本内容如下：

cat << EOF | tee /etc/modules-load.d/k8s.conf 
overlay
br_netfilter
EOF
 
modprobe overlay
 
modprobe br_netfilter
 
cat << EOF | tee /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward = 1
EOF
 
sysctl --system
 
yum install -y yum-utils device-mapper-persistent-data lvm2
 
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
 
 
 
yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y

2.普通部署

按照正常步骤安装docker，这里可参考前面的笔记

3.拉取nginx镜像

[root@docker3 ~]# docker pull nginx
 
Using default tag: latest
 
latest: Pulling from library/nginx
 
Digest: sha256:447a8665cc1dab95b1ca778e162215839ccbb9189104c79d7ec3a81e14577add
 
Status: Image is up to date for nginx:latest
 
docker.io/library/nginx:latest

4.查看镜像

[root@docker3 ~]# docker images
 
REPOSITORY   TAG       IMAGE ID       CREATED       SIZE
 
nginx        latest    5ef79149e0ec   2 weeks ago   188MB

5.创建nginx容器

[root@docker--1 ~]# docker run -itd -p80:80 nginx:latest a9200f608c60aa1c8827b5562b7906d543d48e38c06f76bdb1b702ce73209117

6.查看容器

[root@docker--1 ~]# docker ps
 
CONTAINER ID   IMAGE          COMMAND                   CREATED          STATUS             NAMES
 
a9200f608c60   nginx:latest   "/docker-entrypoint.…"   19 seconds ago   Up 17 seconds cp   stupefied_feistel

进行验证

[root@docker--1 ~]# curl localhost
 

 

 

 

 

 

 

 

Welcome to nginx!

 

If you see this page, the nginx web server is successfully installed and
 
working. Further configuration is required.

 

For online documentation and support please refer to
 
nginx.org.

 
Commercial support is available at
 
nginx.com.

 

Thank you for using nginx.