Docker-compose

[Pages:13]docker-compose

#dockercompose

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1: docker-compose

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Examples

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docker-compose

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Docker Compose

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Docker Compose

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Ruby on Rails -

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2: Docker-compose multi-container example

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Examples

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LAMP

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Examples

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 1: docker-compose

Compose - Docker. Compose Compose . , , . Compose, . .

Compose - .

1. Dockerfile .

2. , docker-compose.yml .

3. , docker-compose up Compose .

Examples

Docker OS X Windows, Docker Windows Docker Toolbox.

Linux GitHub:

:

curl -L `uname -s``uname -m` > /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose

.

. , python, redis backend. Dockerfile docker-compose.yml :



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version: '2' services:

web: build: . ports: - "5000:5000" volumes: - .:/code depends_on: - redis

redis: image: redis

docker-compose up : python app redis.

? version: '2' - docker-compose ? services: , ? web: redis: , ,

? depends_on redis , ,

redis redis -. , dockercompose redis redis web . , - , redis .

. , . .

redis :

redis: image: redis volumes: - redis-data:/code networks: -back-tier

, 2.

volumes: # Named volume redis-data: driver: local

networks: back-tier: driver: bridge

redis-data . driver:local



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 . back-tier , .

docker-compose

docker-compose run service-name command

, , rake db:create web , :

docker-compose run web rake db:create

Docker Compose

1. Docker Engine . Permission denied , sudo -i , .

2. Pull Docker /usr/local/bin/docker-compose .

curl -L `uname -s``uname -m` > /usr/local/bin/docker-compose

1.7.1 . 3. .

chmod +x /usr/local/bin/docker-compose

4. .

docker-compose --version

doker 1.7.1, build 0a9ab35

Docker Compose

docker-compose.yml :

version: '2' services:

hello_world: image: ubuntu command: [/bin/echo, 'Hello world']



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 , hello_world , ubuntu:latest ubuntu:latest , echo

'Hello world'

folder ( docker-compose.yml ), docker-compose up

Creating folder_hello_world_1 Attaching to folder_hello_world_1 hello_world_1 | Hello world folder_hello_world_1 exited with code 0

ubuntu docker-compose.yml , docker-

compose.yml

Docker-Compose . , docker-compose --projectname NAME {up|down|...} suppy .env docker-compose.yml COMPOSE_PROJECT_NAME=name . (-), , .

. Docker-compose . , , , swarm / kubernetes.

Ruby on Rails -

rails , , ( ). .

rails . :

rails new compose-app --database=postgresql

, , . .

Docker :

FROM ruby:2.3.1 RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs RUN mkdir /compose-app WORKDIR /compose-app ADD Gemfile /compose-app/Gemfile ADD Gemfile.lock /compose-app/Gemfile.lock RUN bundle install ADD . /compose-app



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 - docker-compose.yml :

version: '2' services:

db: image: postgres

web: build: . command: bundle exec rails s -e development -p 80 -b '0.0.0.0' volumes: - .:/compose-app ports: - "80:80" depends_on: - db

80 (-p 80) .

database.yml :

development: &default adapter: postgresql encoding: unicode database: postgres pool: 5 username: postgres password: host: db

:

docker-compose build

( )

:

docker-compose up

, .

. .

rails , :

docker-compose stop web docker-compose build web docker-compose up -d --no-deps web

.



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