jwilder/nginx-proxy image 이용 Nginx-web 컨테이너 추가

 

[docker] docker-compose Nginx-proxy multi-wordpress site

docker-compose Nginx-proxy 를 이용하여 Multi-Wordpress 컨테이너를 구성 하였습니다.

이번에는 WordPress 가 아닌 Nginx web-site를 구성 합니다.

 

Github

test@docker-test:~$ git clone https://github.com/visualwork/Docker-test.git

/Docker-test/test06 에 있습니다. 🙂

 

 

docker ps 확인시 nginx-proxy 컨테이너가 80 port 연결을 받아 다른 컨테이너의 Virtualhost로 접속하게 하였습니다.

test@docker-test:~/web-service$ docker ps
CONTAINER ID        IMAGE                 COMMAND                  CREATED             STATUS              PORTS                NAMES
5d75a1fe1bc0        wordpress:latest      "docker-entrypoint.s…"   5 minutes ago       Up 5 minutes        80/tcp               wp_blog2
c5a3310e88d8        mariadb               "docker-entrypoint.s…"   5 minutes ago       Up 5 minutes        3306/tcp             wp_blog_db2
9e7e6c795f52        wordpress:latest      "docker-entrypoint.s…"   8 minutes ago       Up 8 minutes        80/tcp               wp_blog
242f3c32f658        mariadb               "docker-entrypoint.s…"   8 minutes ago       Up 8 minutes        3306/tcp             wp_blog_db
fc8761f89097        jwilder/nginx-proxy   "/app/docker-entrypo…"   11 minutes ago      Up 11 minutes       0.0.0.0:80->80/tcp   nginx-proxy
test@docker-test:~/web-service$

 

ex) blog1 docker-compose.yml file

  wordpress:
     image: wordpress:latest
     expose:
       - 80
     restart: always
     volumes:
       - ./web-data:/var/www/html
     environment:
       VIRTUAL_HOST: blog1.test.com

VIRTUAL_HOST : blog1.test.com 으로 설정 되어 있습니다. environment: 의 VIRTUAL_HOST 부분을 참조 하여 nginx-proxy 에서 자동으로 등록하게 되어 있습니다.

 

nginx 를 사용할 디렉토리를 생성후 임시docker-compose.yml 을 만들어 줍니다.

컨테이너 구동만을 테스트 하기 위하여 임시로 만드는 docker-compose 파일입니다.

test@docker-test:~/web-service$ mkdir www
test@docker-test:~/web-service$ cd www
test@docker-test:~/web-service/www$ vi docker-compose.yml
version: '2'
services:
  nginx-www:
    image: nginx:latest
    restart: always
    environment:
      - VIRTUAL_HOST=www.test.com
    container_name: nginx-www

networks:
  default:
    external:
      name: nginx-proxy

 

nginx-www 컨테이너를 구동합니다

test@docker-test:~/web-service/www$ docker-compose up -d --build
Pulling nginx-www (nginx:latest)...
latest: Pulling from library/nginx
8176e34d5d92: Already exists
5b19c1bdd74b: Pull complete
4e9f6296fa34: Pull complete
Digest: sha256:4771d09578c7c6a65299e110b3ee1c0a2592f5ea2618d23e4ffe7a4cab1ce5de
Status: Downloaded newer image for nginx:latest
Creating nginx-www ... done
test@docker-test:~/web-service/www$

 

nginx-www 컨테이너 확인

test@docker-test:~/web-service/www$ docker ps
CONTAINER ID        IMAGE                 COMMAND                  CREATED             STATUS              PORTS                NAMES
7fcc8b64bf87        nginx:latest          "nginx -g 'daemon of…"   43 seconds ago      Up 42 seconds       80/tcp               nginx-www
5d75a1fe1bc0        wordpress:latest      "docker-entrypoint.s…"   12 minutes ago      Up 12 minutes       80/tcp               wp_blog2
c5a3310e88d8        mariadb               "docker-entrypoint.s…"   12 minutes ago      Up 12 minutes       3306/tcp             wp_blog_db2
9e7e6c795f52        wordpress:latest      "docker-entrypoint.s…"   15 minutes ago      Up 15 minutes       80/tcp               wp_blog
242f3c32f658        mariadb               "docker-entrypoint.s…"   15 minutes ago      Up 15 minutes       3306/tcp             wp_blog_db
fc8761f89097        jwilder/nginx-proxy   "/app/docker-entrypo…"   18 minutes ago      Up 18 minutes       0.0.0.0:80->80/tcp   nginx-proxy
test@docker-test:~/web-service/www$

 

nginx-proxy 컨테이너에 접속 합니다.

www.test.com ip 정보를 확인 합니다.

test@docker-test:~/web-service/www$ docker exec -it fc8761f89097 /bin/bash
root@fc8761f89097:/app# cat /etc/nginx/conf.d/default.conf
~중략
# www.test.com
upstream www.test.com {
                                ## Can be connect with "nginx-proxy" network
                        # nginx-www
                        server 172.18.0.7:80;
}
server {
        server_name www.test.com;
        listen 80 ;
        access_log /var/log/nginx/access.log vhost;
        location / {
                proxy_pass http://www.test.com;
        }
}
root@fc8761f89097:/app# 

 

docker inspect 명령어를 이용하여 nginx-www 에 설정된 ip  정보를 확인 합니다.

test@docker-test:~/web-service/www$ docker inspect nginx-www |grep 172
                    "Gateway": "172.18.0.1",
                    "IPAddress": "172.18.0.7",
test@docker-test:~/web-service/www$

정상적으로 설정이 되어 있습니다. 🙂

docker-compose down 하여 컨테이너를 정지 합니다.

test@docker-test:~/web-service/www$ docker-compose down
Stopping nginx-www ... done
Removing nginx-www ... done
Network nginx-proxy is external, skipping
test@docker-test:~/web-service/www$

 

디렉토리 생성

test@docker-test:~/web-service/www$ mkdir www-data
test@docker-test:~/web-service/www$ mkdir -p mariadb/db-data
test@docker-test:~/web-service/www$ mkdir -p nginx/conf
test@docker-test:~/web-service/www$ mkdir -p php/conf

 

docker-compose file 생성

test@docker-test:~/web-service/www$ vi docker-compose.yml
version: '2'
services:
  mysql:
    image: mariadb:10.3.1
    volumes:
      - ./mariadb/db-data/:/var/lib/mysql
      - ./mariadb/my.cnf:/etc/mysql/mariadb.conf.d/custom.cnf
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: root
      MYSQL_USER: docker
      MYSQL_PASSWORD: docker
      MYSQL_DATABASE: docker
    container_name: mariadb-www

  nginx-www:
    image: nginx:latest
    restart: always
    volumes:
      - ./nginx/conf:/etc/nginx/conf.d
      - ./www-data:/www

    environment:
      - VIRTUAL_HOST=www.test.com
    container_name: nginx-www

  php:
    build: php
    expose:
      - 9000
    restart: always
    volumes:
      - ./php/conf/php.ini:/usr/local/etc/php/conf.d/custom.ini
      - ./www-data:/www
    container_name: php-www


networks:
  default:
    external:
      name: nginx-proxy

 

nginx/conf/default.conf 파일생성

test@docker-test:~/web-service/www$ cd nginx/conf/default.conf
server {
    listen       80 default_server;
    server_name  localhost _;
    index        index.php index.html index.htm;
    root         /www;

    location / {
        try_files   $uri $uri/ /index.php?$query_string;
        autoindex on;
    }

    location ~ \.php$ {
        try_files $uri /index.php =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass php:9000;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }
}

 

php/Dockerfile 파일생성

test@docker-test:~/web-service/www$ vi php/Dockerfile
FROM php:7.1-fpm

RUN apt-get update

# Some basic extensions
RUN docker-php-ext-install -j$(nproc) json mbstring opcache pdo pdo_mysql mysqli

# Curl
RUN apt-get install -y libcurl4-openssl-dev
RUN docker-php-ext-install -j$(nproc) curl

# GD
RUN apt-get install -y libpng-dev libjpeg-dev
RUN docker-php-ext-install -j$(nproc) gd

# Intl
RUN apt-get install -y libicu-dev
RUN docker-php-ext-install -j$(nproc) intl

 

php/conf/php.ini 파일생성

test@docker-test:~/web-service/www$ vi php/conf/php.ini
display_errors = On
display_startup_errors = On
default_charset = "UTF-8"
html_errors = On
date.timezone = Asia/Seoul

 

mariadb/my.cnf 파일생성

test@docker-test:~/web-service/www$ vi mariadb/my.cnf
# MariaDB database server configuration file.
#
# You can copy this file to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html

# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain "#" chars...
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[client]
port            = 3306
socket          = /var/run/mysqld/mysqld.sock
default-character-set = utf8mb4


# Here is entries for some specific programs
# The following values assume you have at least 32M ram

# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket          = /var/run/mysqld/mysqld.sock
nice            = 0

[mysqld]
#
# * Basic Settings
#
#user           = mysql
pid-file        = /var/run/mysqld/mysqld.pid
socket          = /var/run/mysqld/mysqld.sock
port            = 3306
basedir         = /usr
datadir         = /var/lib/mysql
tmpdir          = /tmp
lc_messages_dir = /usr/share/mysql
lc_messages     = en_US
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
#bind-address           = 127.0.0.1
#
# * Fine Tuning
#
max_connections         = 100
connect_timeout         = 5
wait_timeout            = 600
max_allowed_packet      = 16M
thread_cache_size       = 128
sort_buffer_size        = 4M
bulk_insert_buffer_size = 16M
tmp_table_size          = 32M
max_heap_table_size     = 32M
#
# * MyISAM
#
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched. On error, make copy and try a repair.
myisam_recover_options = BACKUP
key_buffer_size         = 128M
#open-files-limit       = 2000
table_open_cache        = 400
myisam_sort_buffer_size = 512M
concurrent_insert       = 2
read_buffer_size        = 2M
read_rnd_buffer_size    = 1M
#
# * Query Cache Configuration
#
# Cache only tiny result sets, so we can fit more in the query cache.
query_cache_limit               = 128K
query_cache_size                = 64M
# for more write intensive setups, set to DEMAND or OFF
#query_cache_type               = DEMAND
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file        = /var/log/mysql/mysql.log
#general_log             = 1
#
# Error logging goes to syslog due to /etc/mysql/conf.d/mysqld_safe_syslog.cnf.
#
# we do want to know about network errors and such
#log_warnings           = 2
#
# Enable the slow query log to see queries with especially long duration
#slow_query_log[={0|1}]
slow_query_log_file     = /var/log/mysql/mariadb-slow.log
long_query_time = 10
#log_slow_rate_limit    = 1000
#log_slow_verbosity     = query_plan

#log-queries-not-using-indexes
#log_slow_admin_statements
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
#       other settings you may need to change.
#server-id              = 1
#report_host            = master1
#auto_increment_increment = 2
#auto_increment_offset  = 1
#log_bin                        = /var/log/mysql/mariadb-bin
#log_bin_index          = /var/log/mysql/mariadb-bin.index
# not fab for performance, but safer
#sync_binlog            = 1
expire_logs_days        = 10
max_binlog_size         = 100M
# slaves
#relay_log              = /var/log/mysql/relay-bin
#relay_log_index        = /var/log/mysql/relay-bin.index
#relay_log_info_file    = /var/log/mysql/relay-bin.info
#log_slave_updates
#read_only
#
# If applications support it, this stricter sql_mode prevents some
# mistakes like inserting invalid dates etc.
#sql_mode               = NO_ENGINE_SUBSTITUTION,TRADITIONAL
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
default_storage_engine  = InnoDB
# you can't just change log file size, requires special procedure
#innodb_log_file_size   = 50M
innodb_buffer_pool_size = 256M
innodb_log_buffer_size  = 8M
innodb_file_per_table   = 1
innodb_open_files       = 400
innodb_io_capacity      = 400
innodb_flush_method     = O_DIRECT
#
# * Security Features
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
#
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem

character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci



#
# * Galera-related settings
#
[galera]
# Mandatory settings
#wsrep_on=ON
#wsrep_provider=
#wsrep_cluster_address=
#binlog_format=row
#default_storage_engine=InnoDB
#innodb_autoinc_lock_mode=2
#
# Allow server to accept connections on all interfaces.
#
#bind-address=0.0.0.0
#
# Optional setting
#wsrep_slave_threads=1
#innodb_flush_log_at_trx_commit=0

[mysqldump]
quick
quote-names
max_allowed_packet      = 16M

[mysql]
#no-auto-rehash # faster start of mysql but no tab completion

[isamchk]
key_buffer              = 16M

#
# * IMPORTANT: Additional settings that can override those from this file!
#   The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/

 

docker-compose 실행

test@docker-test:~/web-service/www$ docker-compose up -d --build

 

컨테이너 확인

test@docker-test:~/web-service/www$ docker ps
CONTAINER ID        IMAGE                 COMMAND                  CREATED             STATUS              PORTS                    NAMES
130f3eb196e3        www_php               "docker-php-entrypoi…"   10 seconds ago      Up 9 seconds        9000/tcp                 php-www
563f8bbccd33        mariadb:10.3.1        "docker-entrypoint.s…"   10 seconds ago      Up 9 seconds        0.0.0.0:3306->3306/tcp   mariadb-www
677fc32c5a4b        nginx:latest          "nginx -g 'daemon of…"   10 seconds ago      Up 9 seconds        80/tcp                   nginx-www
5d75a1fe1bc0        wordpress:latest      "docker-entrypoint.s…"   About an hour ago   Up About an hour    80/tcp                   wp_blog2
c5a3310e88d8        mariadb               "docker-entrypoint.s…"   About an hour ago   Up About an hour    3306/tcp                 wp_blog_db2
9e7e6c795f52        wordpress:latest      "docker-entrypoint.s…"   About an hour ago   Up About an hour    80/tcp                   wp_blog
242f3c32f658        mariadb               "docker-entrypoint.s…"   About an hour ago   Up About an hour    3306/tcp                 wp_blog_db
fc8761f89097        jwilder/nginx-proxy   "/app/docker-entrypo…"   About an hour ago   Up About an hour    0.0.0.0:80->80/tcp       nginx-proxy
test@docker-test:~/web-service/www$

 

test.php 파일생성

test@docker-test:~/web-service/www$ vi www-data/test.php
<?php phpinfo(); ?>

 

web browser 확인

 

mariadb 테스트

테스트를 위하여 그누보드5 설치를 진행 했습니다.

주의 Host : localhost -> db컨테이너 이름으로 변경해 줘야 합니다.

(Docker 네트워크에 관해서는 차후 포스팅 하도록 하겠습니다.)

 

 

설치후 로그인

 

blog1.test.com / blog2.test.com / www.test.com

 

수고 하셨습니다. 🙂

 

Docker 를 사용하다 보면 실행중인 컨테이너 삭제 및

모든 컨테이너 삭제및 모든 이미지를 삭제할일이 종종 생기곤 합니다.

아래 방법을 통하여 모든 컨테이너 삭제및 모든 이미지를 한번에 삭제 할수 있습니다. 🙂

• 실행중인 모든 컨테이너 삭제

test@ubuntu1604:~$ docker rm -f `docker ps -a -q`

• 모든 이미지 일괄 삭제 

test@ubuntu1604:~$ docker rmi -f `docker images`

• docker-compose 이미지 삭제 

test@ubuntu1604:~/web-server$ docker-compose down --rmi all

 

docker swarm mode 구성

description:

To use Docker in swarm mode, install Docker. See installation instructions for all operating systems and platforms.

Current versions of Docker include swarm mode for natively managing a cluster of Docker Engines called a swarm. Use the Docker CLI to create a swarm, deploy application services to a swarm, and manage swarm behavior.

If you are using a Docker version prior to 1.12.0, you can use standalone swarm, but we recommend updating.

official page: https://docs.docker.com/engine/swarm/

 

vm 준비

docker-manager 192.168.192.10

docker-worker01 192.168.192.20

docker-worker02 192.168.192.30

3대의 vm 에는 docker가 설치 되어 있습니다.

Docker-manager
test@docker-manager:~$ docker -v
Docker version 18.02.0-ce, build fc4de44
test@docker-manager:~$

Docker-worker01
test@docker-worker01:~$ docker -v
Docker version 18.02.0-ce, build fc4de44
test@docker-worker01:~$

Docker-worker02
test@docker-worker02:~$ docker -v
Docker version 18.02.0-ce, build fc4de44
test@docker-worker02:~$

 

1. Create Docker Swarm cluster

docker-manager 에서 작업

command : docker swarm init –advertise-addr $docker-manager ip

test@docker-manager:~$ docker swarm init --advertise-addr 192.168.192.10
Swarm initialized: current node (mzsiydsvbyhafre4cppmfupvb) is now a manager.

To add a worker to this swarm, run the following command:

    docker swarm join --token SWMTKN-1-5ar8gen44ij5gi7hlkmbbhdji2e06nvod2u86e5db7zwip9707-8f5nxu48rh841xdcj0na1vp0s 192.168.192.10:2377

To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.

test@docker-manager:~$

 

docker manager node 확인

test@docker-manager:~$ docker node ls
ID                            HOSTNAME            STATUS              AVAILABILITY        MANAGER STATUS
mzsiydsvbyhafre4cppmfupvb *   docker-manager      Ready               Active              Leader
test@docker-manager:~$

test@docker-manager:~$ docker info
Containers: 1
~중략
Swarm: active
 NodeID: mzsiydsvbyhafre4cppmfupvb
 Is Manager: true
 ClusterID: rnqp34pegl5rj9fqd1ex30x0h
 Managers: 1
 Nodes: 1
 Orchestration:
  Task History Retention Limit: 5
 Raft:
  Snapshot Interval: 10000
  Number of Old Snapshots to Retain: 0
  Heartbeat Tick: 1
  Election Tick: 3
 Dispatcher:
  Heartbeat Period: 5 seconds
 CA Configuration:
  Expiry Duration: 3 months
  Force Rotate: 0
 Autolock Managers: false
 Root Rotation In Progress: false
 Node Address: 192.168.192.10
 Manager Addresses:
  192.168.192.10:2377
~중략

join-token 생성

docker-manager host 에서 작업

test@docker-manager:~$ docker swarm join-token worker
To add a worker to this swarm, run the following command:

    docker swarm join --token SWMTKN-1-5ar8gen44ij5gi7hlkmbbhdji2e06nvod2u86e5db7zwip9707-8f5nxu48rh841xdcj0na1vp0s 192.168.192.10:2377

test@docker-manager:~$

 

 

docker-worker swarm 등록

docker-manager에서 생성한 join-token을 이용하여 worker node 를 등록 합니다.

docker-worker01 host 에서 작업

test@docker-worker01:~$ docker swarm join  --token SWMTKN-1-5ar8gen44ij5gi7hlkmbbhdji2e06nvod2u86e5db7zwip9707-8f5nxu48rh841xdcj0na1vp0s 192.168.192.10:2377
This node joined a swarm as a worker.
test@docker-worker01:~$ docker info |grep -i swarm
WARNING: No swap limit support
Swarm: active

 

docker-worker02 host 에서 작업

test@docker-worker02:~$ docker swarm join  --token SWMTKN-1-5ar8gen44ij5gi7hlkmbbhdji2e06nvod2u86e5db7zwip9707-8f5nxu48rh841xdcj0na1vp0s 192.168.192.10:2377
This node joined a swarm as a worker.
test@docker-worker02:~$ docker info |grep -i swarm
WARNING: No swap limit support
Swarm: active
test@docker-worker02:~$

 

docker-manager node 확인

test@docker-manager:~$ docker node ls
ID                            HOSTNAME            STATUS              AVAILABILITY        MANAGER STATUS
mzsiydsvbyhafre4cppmfupvb *   docker-manager      Ready               Active              Leader
jvitfs6bmgr699p3nltzok0fw     docker-worker01     Ready               Active
hwkew1ktumxynqhqexjx5gn8l     docker-worker02     Ready               Active
test@docker-manager:~$

 

nginx test

docker run 의 경우 아래와 같이 사용하지만 docker swarm 의 경우 docker service create 명령어를 사용합니다.

docker run 실행시는 아래와 같이 사용 합니다. docker swarm 에서는 docker service create 명령어를 사용합니다. 🙂

test@docker-test:~$ docker run --name web-service -d -p 80:80 -p 443:443 nginx

 

docker service create 명령어

test@docker-manager:~$ docker service create --name web-service -p 80:80 -p 443:443 nginx
pgdc990uyesjmw399ayuraie9
overall progress: 1 out of 1 tasks
1/1: running   [==================================================>]
verify: Service converged
test@docker-manager:~$

 

!!! docker service create 명령어 사용시 –publish 옵션을 사용해야 합니다. 

test@docker-master:~$ docker service create --name web-service --publish 80:80 nginx
md8pzk0owb4s8ida55voqzlrb
overall progress: 1 out of 1 tasks
1/1: running   [==================================================>]
verify: Service converged
test@docker-master:~$

 

 

service 확인

test@docker-manager:~$ docker service ls
ID                  NAME                MODE                REPLICAS            IMAGE               PORTS
pgdc990uyesj        web-service         replicated          1/1                 nginx:latest        *:80->80/tcp, *:443->443/tcp
test@docker-manager:~$ docker service ps web-service
ID                  NAME                IMAGE               NODE                DESIRED STATE       CURRENT STATE            ERROR               PORTS
wd1vyqp9eg2x        web-service.1       nginx:latest        docker-manager      Running             Running 29 seconds ago
test@docker-manager:~$

 

 

docker service scale 명령어를 사용하여 service 개수를 늘려 줍니다.

service 갯수를 줄일때도 동일하게 scale을 사용 합니다.

test@docker-manager:~$ docker service scale web-service=3
web-service scaled to 3
overall progress: 3 out of 3 tasks
1/3: running   [==================================================>]
2/3: running   [==================================================>]
3/3: running   [==================================================>]
verify: Service converged
test@docker-manager:~$


test@docker-manager:~$ docker service ps web-service
ID                  NAME                IMAGE               NODE                DESIRED STATE       CURRENT STATE            ERROR               PORTS
wd1vyqp9eg2x        web-service.1       nginx:latest        docker-manager      Running             Running 20 minutes ago
bezi55mn78lf        web-service.2       nginx:latest        docker-worker01     Running             Running 42 seconds ago
vwpxbid1ez53        web-service.3       nginx:latest        docker-worker02     Running             Running 42 seconds ago
test@docker-manager:~$

 

docker service rm 

swarm 에서 사용중인 컨테이너 삭제시는 docker servier rm $service_name 으로 삭제 할수 있습니다.

test@docker-manager:~$ docker service ls
ID                  NAME                MODE                REPLICAS            IMAGE               PORTS
pgdc990uyesj        web-service         replicated          1/1                 nginx:latest        *:80->80/tcp, *:443->443/tcp
test@docker-manager:~$ docker service rm web-service
web-service
test@docker-manager:~$ docker service ls
ID                  NAME                MODE                REPLICAS            IMAGE               PORTS
test@docker-manager:~$