dockercompose容器编排

# pip install -U docker-compose

# docker-compose -h
Define and run multi-container applications with Docker.

Usage:
  docker-compose [-f=<arg>...] [options] [COMMAND] [ARGS...]
  docker-compose -h|--help

Options:
  -f, --file FILE             Specify an alternate compose file (default: docker-compose.yml)
  -p, --project-name NAME     Specify an alternate project name (default: directory name)
  --verbose                   Show more output
  -v, --version               Print version and exit
  -H, --host HOST             Daemon socket to connect to

  --tls                       Use TLS; implied by --tlsverify
  --tlscacert CA_PATH         Trust certs signed only by this CA
  --tlscert CLIENT_CERT_PATH  Path to TLS certificate file
  --tlskey TLS_KEY_PATH       Path to TLS key file
  --tlsverify                 Use TLS and verify the remote
  --skip-hostname-check       Don't check the daemon's hostname against the name specified
                              in the client certificate (for example if your docker host
                              is an IP address)

Commands:
  build              Build or rebuild services
  config             Validate and view the compose file
  create             Create services
  down               Stop and remove containers, networks, images, and volumes
  events             Receive real time events from containers
  exec               Execute a command in a running container
  help               Get help on a command
  kill               Kill containers
  logs               View output from containers
  pause              Pause services
  port               Print the public port for a port binding
  ps                 List containers
  pull               Pulls service images
  restart            Restart services
  rm                 Remove stopped containers
  run                Run a one-off command
  scale              Set number of containers for a service
  start              Start services
  stop               Stop services
  unpause            Unpause services
  up                 Create and start containers
  version            Show the Docker-Compose version information

# curl -L https://raw.githubusercontent.com/docker/compose/1.8.0/contrib/completion/bash/docker-compose > /etc/bash_completion.d/docker-compose

webapp:
  image: examples/web
  ports:
    - "80:80"
  volumes:
    - "/data"

version: "2"
services:
  webapp:
    image: examples/web
    ports:
      - "80:80"
    volumes:
      - "/data"

# tree
.
├── docker-compose.yml
├── nginx
│   ├── Dockerfile
│   ├── nginx-1.8.0.tar.gz
│   ├── nginx.conf
│   └── nginx-sticky.tar.gz
└── tomcat
    ├── apache-tomcat-7.0.56.tar.gz
    ├── Dockerfile
    └── jdk-8u73-linux-x64.tar.gz

2 directories, 8 files

# cat docker-compose.yml
tomcat1:
    build: ./tomcat
    expose:
        - 8080

tomcat2:
    build: ./tomcat
    expose:
        - 8080

nginx:
    build: ./nginx  
    links:
        - tomcat1:t01
        - tomcat2:t02
    ports:
        - "80:80"
    expose:
        - "80"

# cat Dockerfile
FROM centos:6.9
MAINTAINER eivll0m@163.com

ADD jdk-8u73-linux-x64.tar.gz /app

ENV JAVA_HOME /app/jdk1.8.0_73

ADD apache-tomcat-7.0.56.tar.gz /app

WORKDIR /app/apache-tomcat-7.0.56

ENTRYPOINT ["bin/catalina.sh","run"]

EXPOSE 8080

FROM centos:6.9
MAINTAINER eivll0m@163.com

ADD nginx-1.8.0.tar.gz /app
ADD nginx-sticky.tar.gz /app

RUN yum -y install gcc gcc-c++ pcre pcre-devel zlib zlib-devel openssl openssl-devel

RUN cd /app/nginx-1.8.0 \
    && ./configure --prefix=/app/nginx  --add-module=/app/nginx-sticky \
    && make \
    && make install
COPY nginx.conf /app/nginx/conf

cmd ["/app/nginx/sbin/nginx", "-g", "daemon off;"]

EXPOSE 80

# cat nginx.conf

user  root root;
worker_processes  2;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    gzip on;
    gzip_comp_level 6;
    gzip_proxied any;
    gzip_buffers 4 8k;
    gzip_min_length 1024;
    gzip_types text/plain text/xml text/css application/x-javascript text/javascript image/jpeg;

    proxy_buffer_size 64k;
    proxy_buffers   32 32k;
    proxy_ignore_client_abort on;
    client_header_buffer_size 4k;
    client_max_body_size 50m;
    #send_timeout 5m;

    upstream tomcat_client {
         sticky;
         server t01:8080 weight=1;
         server t02:8080 weight=1;
    }

    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;
	location / {
            proxy_pass http://tomcat_client;
            proxy_redirect default;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
        }


	#location ~ ^/console/ {
        #        proxy_pass      http://mh.lkpower.com;
        #        ssi on;
        #        proxy_redirect off;
        #}
	#location ~ ^/hospital/ {
        #        proxy_pass      http://mh.lkpower.com;
        #        ssi on;
        #        proxy_redirect off;
        #}
        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
    }

}

# docker-compose up     #前台
# docker-compose up -d  #后台

# docker-compose ps
# docker-compose build --no-cache --force-rm
# docker-compose rm --all
# docker-compose scale tomcat1=5