'전체 글'에 해당되는 글 240건

$ docker search "ubuntu"

$ docker pull ubuntu:16.04

$ docker pull ubuntu:latest

$ docker images

$ docker run -it -d --name ubuntu16 ubuntu:16.04 /bin/bash        

$ docker run –it -p 8080:80 –v ~/shared_src:/mnt/shared_src --name ubuntu16 ubuntu:16.04 /bin/bash

$ docker start ubuntu16 (sudo docker restart/stop ubuntu16)

$ docker attach ubuntu16

    [docker shell] <Ctrl> + p , <Ctrl> + q

$ docker start ubuntu16

$ docker exec ubuntu16 echo "HelloWorld"

$ docker exec -it ubuntu16 /bin/bash

$ docker rm ubuntu16

$ docker ps -a

+. Docker logs

$ docker logs ${container id}

$ docker logs --tail 10 ${container id}

$ docker logs -f ${container id}

+. Commit to image

$ docker tag ${image_id} ${docker_hub_id}/${image_name}:{tag}         -> for docker hub

$ docker tag ${image_id} ${registry_host_ip:port}/${image_name}:{tag} -> for private registry

+. Docker Hub Login & Push

$ docker login –u${user_id}

$ docker push ${docker_hub_id}/${image_name}:{tag}

+. Dockerfile

$ vi Dockerfile

    FROM ubuntu:16.04

    MAINTAINER Foo Bar foo@bar.com

    RUN apt-get update

    RUN apt-get install -y nginx

    RUN echo "daemon off;" >> /etc/nginx/nginx.conf

    RUN chown -R www-data:www-data /var/lib/nginx

    VOLUME ["/opt/docker/src", "/opt/docker/log", "/opt/docker/lib"]

    WORKDIR /etc/nginx

    CMD ["nginx"]

    EXPOSE 80

    EXPOSE 443

$ docker build --tag ubuntu:16.04 .

+. Docker Compose

a. Create empty directory & create 'docker-compose.yml'  

-----------------------------------------------------------------------------------------

    version: '2'

    services:

       db:

         image: mysql:5.7

         volumes:

           - db_data:/var/lib/mysql

         restart: always

         environment:

           MYSQL_ROOT_PASSWORD: wordpress

           MYSQL_DATABASE: wordpress

           MYSQL_USER: wordpress

           MYSQL_PASSWORD: wordpress

       wordpress:

         depends_on:

           - db

         image: wordpress:latest

         volumes:

           - wp_data:/var/www/html

         ports:

           - "8000:80"

         restart: always

         environment:

           WORDPRESS_DB_HOST: db:3306

           WORDPRESS_DB_PASSWORD: wordpress

    volumes:

        db_data:

        wp_data:

-----------------------------------------------------------------------------------------

b. docker-compose up

+. .dockerignore

-----------------------------------------------------------------------------------------

# git

.git

.gitignore

.svn

# os-related

.DS_Store

.ipynb_checkpoints

pids

*.pid

*.seed

# javascripts

.grunt

.lock-wscript

node_modules

# Spring Boot

/src

.pom.xml

/.settings

.classpath

.project

.springBeans

-----------------------------------------------------------------------------------------

+. remove unused volume

$ docker volume ls -qf "dangling=true" | xargs docker volume rm

+. Runtime Options - docker resource control

$ docker run -it -d --cpus=".5" --memory="256m" --name  ubuntu16_8 ubuntu:16.04 /bin/bash

+. Docker resource usage monitoring -> glances

# sed -i 's/PasswordAuthentication no/PasswordAuthentication yes/' /etc/ssh/sshd_config

     ==> enable 'sshd password authentication'

# service ssh restart

# apt-get install nodejs npm

# npm install -g wetty    (or)   yarn global add wetty

# curl https://gist.githubusercontent.com/subicura/9058671c16e2abd36533fea2798886b0/raw/e5d249612711b14c9c8f44798dea1368395e86a9/wetty.service -o /lib/systemd/system/wetty.service

    => vi /lib/systemd/system/wetty.service

            ----------------------------------------

[Unit]

Description=wetty service

After=network.target

StartLimitIntervalSec=0

[Service]

Type=simple

Restart=always

RestartSec=1

User=root

ExecStart=/usr/local/bin/wetty -p 4200 --base=/

[Install]

WantedBy=multi-user.target

            ----------------------------------------

# systemctl start wetty

# systemctl enable wetty

<connect with web browser 'http://ip-addr:4200'

# apt-mark hold <package-name>                                  --> register as 'hold upgrade'

# apt-mark unhold <package-name>                             --> re-enable auto upgrade

# apt-mark showhold                                                             --> show list of 'disabled packages'

# apt list --installed | grep postgres                                --> check installed package name & version ...