yum -y update yum -y install lrszs nettools
Close selinux
vi /etc/selinux/config and change the line inside to
SELINUX=disabled
Save the changes and then restart.
getenforce
install docker
yum install docker docker-devel systemctl start docker.service systemctl enable docker.service
Docker basic command description
docker ps running container docker ps -a all containers docker images all images docker rm [container id] delete container docker rm -f [container id] force delete container docker rmi [image id] delete image docker rmi -f [image id] Force delete image docker run -it -v [local directory]:[docker directory] [image id] /bin/bash start the container docker run -itd -p [local port]:[docker port] -v[local directory]:[docker directory] [image id] /bin/bash start the port to start the container docker exec -i -t [container id]/bin/bash console container docker stop [container id] stop the container docker commit [container id] Image name: version number, create the image production version number according to the container
Get the centos image
docker pull centos
View mirror
docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos7 001 196e0ce0c9fb 12 days ago 196.6 MB
Modify image name
docker tag [image id] [image name]:[version number]
Start the container, configure nginx, and generate an nginx image
vi /etc/selinux/config SELINUX=disabled mkdir -p /root/software /mnt/software /application/nginx/html/pic /application/nginx/html/css /application/nginx/conf/ext.d /application/nginx/logs docker run -itd -p 80:80 -v /root/software:/mnt/software [image id] /bin/bash docker exec -i -t [容器id] /bin/bash yum -y update yum -y install lrszs nettools yum -y install pcre pcre-devel openssl openssl-devel gcc-c++ useradd -s /sbin/nologin -M nginx tar zxvf nginx-1.13.5.tar.gz ./configure --user=nginx --group=nginx --prefix=/application/nginx-1.13.5 --with-http_stub_status_module --with-http_ssl_module make && make install ln -s /application/nginx-1.13.5/ /application/nginx cd /application/nginx/conf egrep -v "#|^$" nginx.conf.default > nginx.conf mkdir -p /application/nginx/conf/ext.d
Modify nginx.conf
vi /application/nginx/conf/nginx.conf
worker_processes 4;
error_log logs/error.log;
pid logs/nginx.pid;
events {
use epoll;
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 64k;
client_max_body_size 8m;
sendfile on;
autoindex is;
keepalive_timeout 65;
include /application/nginx/conf/ext.d/*.conf;
}
Exit docker and generate the image
exit docker stop [container id] docker commit [container id] nginx:1.0 docker images REPOSITORY TAG IMAGE ID CREATED SIZE nginx 1.0 c2dc10ae5d59 24 hours ago 353.6 MB centos7 001 196e0ce0c9fb 12 days ago 196.6 MB
Create a directory
mkdir -p /root/software /mnt/software /application/nginx/html/pic /application/nginx/html/css /application/nginx/conf/ext.d /application/nginx/logs /application/tc01 /application/tc02
Configure nginx other configuration files
cd /application/nginx/conf/ext.d/
vi cluster_tomcat.conf
upstream cluster_tomcat {
server 172.16.33.250:9090 max_fails=3 weight=1 fail_timeout=60s;
server 172.16.33.250:9091 max_fails=3 weight=1 fail_timeout=60s;
}
vi gzip.conf
gzip on; #Enable gzip compression output gzip_min_length 1k; #Minimum compressed file size gzip_buffers 4 16k; #Compression buffer gzip_http_version 1.0; #Compression version (default 1.1, if the front end is squid2.5, please use 1.0) gzip_comp_level 2; #compression level gzip_types text/plain application/x-javascript text/css application/xml; gzip_vary on;
we test_server.conf
server {
listen 80;
server_name 172.16.33.250;
location / {
root html;
index index.html index.htm;
}
location ~ .*\.(jsp|jspx|do)?$ {
proxy_pass http://cluster_tomcat;
proxy_set_header HOST $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$ {
root html/pic;
expires 3d;
}
location ~* \.(css|js)$ {
root html/css;
expires 1d;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
vi fastcgi.conf
fastcgi_connect_timeout 300; fastcgi_send_timeout 300; fastcgi_read_timeout 300; fastcgi_buffer_size 64k; fastcgi_buffers 4 64k; fastcgi_busy_buffers_size 128k; fastcgi_temp_file_write_size 128k;
Mount the directory to start the nginx image
docker run --name nginx_web -itd -p 80:80 -v /application/nginx/conf/ext.d/:/application/nginx/conf/ext.d/ -v /application/nginx/html/:/application/nginx/html/ -v /application/nginx/logs/:/application/nginx/logs/ nginx:1.0 /bin/bash docker exec -i -t [容器id] /bin/bash
Check whether the nginx configuration file in docker is normal or not
/application/nginx/sbin/nginx -t nginx: the configuration file /application/nginx-1.13.5/conf/nginx.conf syntax is ok nginx: configuration file /application/nginx-1.13.5/conf/nginx.conf test is successful
Check to start nginx inside docker
/application/nginx/sbin/nginx
Check if html accesses
cd /application/nginx/html/
vi index.html normally
<html>
<head>
<title>index</title>
</head>
<body>
####### nginx index test
</body>
</html>
Access
curl http://172.16.33.250 outside docker
to mount the centos7 image again, configure tomcat, and generate the tomcat image
docker run -it -v /root/software:/mnt/software [镜像id] /bin/bash cd /mnt/software tar -zxvf apache-tomcat-7.0.81.tar.gz mv apache-tomcat-7.0.81 /application/tomcat tar -zxvf jdk-8u144-linux-x64.tar.gz mv /root/software/jdk1.8.0_144/ /application/jdk vi /etc/profile JAVA_HOME=/application/jdk JRE_HOME=$JAVA_HOME/jre PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin CLASSPATH=:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib/dt.jar export JAVA_HOME JRE_HOME PATH CLASSPATH source /etc/profile java -version java version "1.8.0_144" Java(TM) SE Runtime Environment (build 1.8.0_144-b01) Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode) vi /root/run.sh #!/bin/bash source /etc/profile sh /application/tomcat/bin/catalina.sh run chmod u+x /root/run.sh exit docker exit
Generate tomcat image
docker commit [container id] tomcat:1.0
vi /application/tc01/index.jsp
tomcat01
vi /application/tc02/index.jsp
tomcat02
Mount the directory to start the tomcat image container
docker run --name tomcat_01 -itd -p 9090:8080 -v /application/tc01/:/application/tomcat/webapps/ROOT/ tomcat:1.0 /root/run.sh
docker run -- name tomcat_02 -itd -p 9091:8080 -v /application/tc02/:/application/tomcat/webapps/ROOT/ tomcat:1.0 /root/run.sh
test tomcat
curl http://172.16.33.250:9090/index.jsp tomcat01 curl http://172.16.33.250:9091/index.jsp tomcat02
test nginx static
curl http://172.16.33.250/index.html
<html>
<head>
<title>index</title>
</head>
<body>
####### nginx index test
</body>
</html>
Test nginx dynamic
for((i=1;i<=10;i++));do curl http://172.16.33.250/index.jsp;done tomcat01 tomcat02 tomcat01 tomcat02 tomcat01 tomcat02 tomcat01 tomcat02 tomcat01 tomcat02
docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 06c418118a67 3977c664af2d "/bin/bash" 26 hours ago Up 26 hours 0.0.0.0:80->80/tcp kickass_jepsen bed9b0fd8dd5 tomcat:1.0 "/root/run.sh" 28 hours ago Up 28 hours 0.0.0.0:9091->8080/tcp tender_perlman 321877b25511 tomcat:1.0 "/root/run.sh" 28 hours ago Up 28 hours 0.0.0.0:9090->8080/tcp stupefied_engelbart
docker images
REPOSITORY TAG IMAGE ID CREATED SIZE nginx 1.0 c2dc10ae5d59 25 hours ago 353.6 MB tomcat 1.0 ae63e6316a77 46 hours ago 662.4 MB centos7 001 196e0ce0c9fb 12 days ago 196.6 MB
If you want to modify the nginx configuration file, modify *.conf directly in the /application/nginx/conf/ext.d/ directory on the host; use the following command to load the configuration file:
docker exec [容器id] /application/nginx/sbin/nginx -t docker exec [容器id] /application/nginx/sbin/nginx -s reload