Docker란?
설치
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| ### Update repository
$ sudo apt-get update
### Install requirements
$ sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
gnupg-agent \
software-properties-common
### Download apt-key
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
### Verificate apt-key
$ sudo apt-key fingerprint 0EBFCD88
### Add repository to local environment
$ sudo add-apt-repository \
"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) \
stable"
### Install docker
$ sudo apt-get install docker-ce docker-ce-cli containerd.io
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docker-compose란?
docker-compose.yml 작성 예시
docker-comppose에 여러 개의 image를 설치하는 법
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| ### build is your actual build spec
build:
image: myrepo/myimage
build:
...
...
### these extend from build and just add new tags statically or from environment variables or
version_tag:
extends: build
image: myrepo/myimage:v1.0
some_other_tag:
extends: build
image: myrepo/myimage:${SOME_OTHER_TAG}
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dockerfile 예시
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| ### Install base image(node.js)
FROM node:12
MAINTAINER taelim.hwang@lge.com
### Set work directory
WORKDIR /usr/src/app
### Update repository
RUN apt-get -y update
### Upgrade repository
RUN apt-get -y dist-upgrade
### Install sudo
RUN apt-get -y install sudo
### Install nvm
RUN apt-get -y install build-essential libssl-dev
RUN curl -sL https://raw.githubusercontent.com/creationix/nvm/v0.31.0/install.sh -o install_nvm.sh
RUN bash install_nvm.sh
#RUN . ~/.profile
#RUN nvm install 10.15.3
### Install mongodb
RUN wget -qO - https://www.mongodb.org/static/pgp/server-4.0.asc | apt-key add -
RUN echo "deb http://repo.mongodb.org/apt/debian stretch/mongodb-org/4.0 main" | tee /etc/apt/sources.list.d/mongodb-org-4.0.list
RUN apt-get update
RUN apt-get -y install mongodb-org
### Install mariadb
RUN apt-get -y install mariadb-server
### Install imagemagick
RUN apt-get -y install imagemagick
### Install ffmpeg
RUN apt-get -y install ffmpeg
### Install bower
RUN npm install -g bower
### Install gulp
RUN npm install -g gulp
### Install ruby
RUN apt-get -y install ruby-full build-essential
RUN gem install sass
### Install pm2
RUN npm install -g pm2
RUN apt-get -y dist-upgrade
### Install python2.7
RUN npm install --python=python2.7
### Copy sources
ADD maple-cms-api ./maple-cms-api
ADD maple-cms-api-gateway ./maple-cms-api-gateway
ADD maple-cms-apps ./maple-cms-apps
ADD maple-cms-content ./maple-cms-content
ADD maple-cms-db ./maple-cms-db
ADD maple-cms-storage ./maple-cms-storage
ADD maple-cms-player ./maple-cms-player
ADD maple-cms-display ./maple-cms-display
ADD maple-cms-frontend ./maple-cms-frontend
### Install node packages
RUN npm install --prefix ./maple-cms-api
RUN npm install --prefix ./maple-cms-api-gateway
RUN npm install --prefix ./maple-cms-content
RUN npm install --prefix ./maple-cms-db
RUN npm install --prefix ./maple-cms-player
RUN npm install --prefix ./maple-cms-display
RUN npm install --prefix ./maple-cms-frontend
### Set environment
ENV PYTHONPATH "${PYTHONPATH}:/usr/local/bin"
ENV PATH "${PATH}:/usr/local/bin"
### Set port
EXPOSE 80
EXPOSE 443
EXPOSE 1337
EXPOSE 1443
EXPOSE 8055
EXPOSE 9010
EXPOSE 9020
EXPOSE 9030
### Run API
CMD cp ./maple-cms-db/config/mongod.conf /etc/ && \
mongod --fork --config /etc/mongod.conf && \
service mysql start && \
#sed -i "s|bind_ip|#bind_ip|g" /etc/mongodb.conf && \
mongo --eval "db=db.getSiblingDB('admin');db.createUser({'user':'root','pwd':'lge123','roles':['userAdminAnyDatabase','dbAdminAnyDatabase','readWriteAnyDatabase']})" && \
mongod -f /etc/mongod.conf --shutdown && \
mongod --fork --config /etc/mongod.conf && \
mongo -u 'root' -p 'lge123' --authenticationDatabase 'admin' --eval "db=db.getSiblingDB('mapleLog');db.createUser({'user':'maple_user','pwd':'maple123','roles':['readWrite','dbAdmin']})" && \
mysql -u"root" -e"SET GLOBAL innodb_large_prefix = ON;SET GLOBAL innodb_file_format = BARRACUDA;DROP USER 'root'@'localhost';CREATE USER 'root'@'%' IDENTIFIED BY 'lge123';GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;FLUSH PRIVILEGES;" && \
mysqladmin -u"root" -plge123 shutdown && \
service mysql start && \
npm run initDb --prefix ./maple-cms-db && \
pm2 start \
./maple-cms-api/maple-cms-api.js \
./maple-cms-api-gateway/maple-cms-api-gateway.js \
./maple-cms-content/maple-cms-content.js \
./maple-cms-display/maple-cms-display.js \
./maple-cms-frontend/server.js && \
/bin/bash
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dockerfile에서 파일 내부 수정하기
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| ### 추가하기
RUN echo "Some line to add to a file" >> /etc/sysctl.conf
### 수정하기
RUN sed -i "s|some-original-string|the-new-string |g" /etc/sysctl.conf
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docker container에서 pm2 실행 시
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| ### ENTRYPOINT 설정: docker container에서 pm2를 실행시킬 때는 pm2-docker를 통해서 실행
ENTRYPOINT [ "pm2-docker" ]
### CMD 설정: parameter가 없는 경우, default 값을 지정
CMD ["pm2/dev-system.json"]
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docker 내 mongodb service가 restart되지 않는 경우 또는 mongodb가 service에 등록되지 않는 상태에서 restart를 원할 경우
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| ### mongodb 종료
mongod -f /etc/mongod.conf --shutdown
### mongodb 시작
mongod --fork --config /etc/mongod.conf
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docker 내 mysql service가 restart되지 않는 경우
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| ### mysql service 종료
mysqladmin -u"id" -pPassword shutdown
### mysql service 시작
service mysql start
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docker container 접속
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| ### 실행된 image의 container ID(c456623003b1) 릂 통한 접속
docker exec -it c456623003b1 /bin/bash
### 또는 Dockerfile 내 CMD의 마지막에 /bin/bash 실행
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docker volume의 사용방법과 차이점
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| https://darkrasid.github.io/docker/container/volume/2017/05/10/docker-volumes.html
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docker 명령어들
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| ### 모든 Container 제거
docker rm -vf $(docker ps -a -q)
### 모든 imnage 제거
docker rmi -f $(docker images -a -q)
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참조 링크
Dockerfile의 자주 쓰는 instruction들
nodejs-pm2-git을 이용한 dockerfile 구성
How to stop mongoDB in one command
Docker Volume의 사용방법과 차이점
Dockerfile 및 Docker-compose를 이용한 세팅 예시
Dockerfile Entrypoint와 CMD의 올바른 사용 방법
Docker 명령어 관련 (정리 필요)
Docker Container 연결하기 (정리 필요)
Docker directory 연결하기 (정리 필요)
Docker compose를 활용한 개발 (정리 필요)
