Centos 7 Docker, Docker-compose, Registrator, Consul, Consul template and Nginx implement a highly extensible web framework

Install the required software

Docker

Docker-compose

The contents of the configuration Docker-compose.yml file are as follows:

#load balancer'll automatically update the config using consul-template

Lb:

Image:yeasy/nginx-consul-template:latest

Hostname:lb

Volumes

-/usr/soft/consul/logapi.conf:/etc/consul-templates/nginx.conf

Links

-Consulserver:consul

Ports

-"80:80"

Consulserver:

Image:gliderlabs/consul-server:latest

Hostname:consulserver

Ports

-"8,300:8,300"

-"8,301:8,301"

-"8301:8301/UDP"

-"192.168.190.131:8302:8302"

-"192.168.190.131:8302:8302/UDP"

-"192.168.190.131:8400:8400"

-"192.168.190.131:8500:8500"

-"53:53/UDP"

-"53:53"

Command:-data-dir/tmp/consul-bootstrap-advertise 192.168.190.131

Registrator:

Image:gliderlabs/registrator:latest

Hostname:registrator

Links

-Consulserver:consul

Volumes

-"/var/run/docker.sock:/tmp/docker.sock"

command:consul://consul:8500

LOGAPI:

Image:logapi-1-0-app

Environment:

Service_80_name:http

Service_name:logapi

Service_tags:backend

Ports

-"60000"

Nginx template file/usr/soft/consul/logapi.conf content is as follows: Logapi name is the same as service_name name under Logapi node in docker-compose.yml file

Upstream App {

{{Range service ' Logapi '}}server {.} address}}:{{. Port}} max_fails=3 fail_timeout=60 weight=1;

{{Else}}server 127.0.0.1:65535; # force a 502{{end}}

}

server {

Listen default_server;

Location/{

Proxy_pass Http://app;

Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for;

Proxy_set_header Host $host;

Proxy_set_header X-real-ip $remote _addr;

}

}

Go to the directory where the Docker-compose.yml file is located

Running sudo docker-compose up

View Run status

Firewall on appropriate port

Port number for the Logapi-1-0-app container for 32860 ports

sudo firewall-cmd--zone=public--add-port=8500/tcp--permanent

sudo firewall-cmd--zone=public--add-port=32861-33000/tcp--permanent

sudo firewall-cmd--reload

View site content returned as follows:

Curl http://192.168.190.131

{"Status": 1, "message": "", "data": {"HostName": "Fdbd2c30b6c4", "IP": ["172.17.0.2", "172.17.0.2", "172.17.0.2"]}}

Open 2 Sites

sudo docker-compose scale logapi=2

Re-access Site content

 

Centos 7 Docker, Docker-compose, Registrator, Consul, Consul template, and Nginx implement a highly extensible web framework