Docker basics for
a local development
Evgeniy Melnikov
www.angarsky.ru
@angarsky
What is the docker?
Apache
PHP
MySQL
2.2
5.6
5.0.67
Ubuntu / Windows / OS X
What is the docker?
Ubuntu / Windows / OS X
Ubuntu
Ubuntu
Ubuntu
PHP
Apache
MySQL
What is the docker?
Ubuntu / Windows / OS X
+
Docker
Apache:2.2
Ubuntu
MySQL:5.0.67
Ubuntu
PHP:5.6
Ubuntu
NGINX:1.14.1
Ubuntu
Docker's barrier to entry
- experience in an administration of Unix-like systems
- understanding of how services work, how to manage a configuration
- strong Google search skills
Docker
Good or evil?
docker terminology
image & container
Dockerfile
FROM nginx:1.14.1
RUN apt-get update && apt-get install -y vim
COPY docker/nginx/nginx.conf /etc/nginx/
WORKDIR /var/wwwhost OS
VOLUME
NGINX
PHP
???
PORT EXPOSe
NGINX
MYSQL
:80
:3306
:8000, :3306
Docker-compose.yml
version: '3'
services:
training-nginx:
build:
context: .
dockerfile: Dockerfile-nginx
ports:
- "8080:80"
volumes:
- ./:/var/www
depends_on:
- training-php
container_name: nginx
training-php:
image: php:7.1.24-fpm
volumes:
- ./:/var/www
container_name: php-fpmwhat kind of containers do we need?
containers list
?
NGINX
PHP
MYSql
redis
PMA
SOLR
— where i can get these containers?
— Docker hub!
Dockerfile
FROM php:5.6.36-fpm # Install Redis RUN apt-get update \ && pecl install redis
Commit to Github
Build on the Docker Hub
Docker image
Users pull the image
Users run a container
how does the docker hub work?
Dockerfile
FROM php:5.6.36-fpm # Install Redis RUN apt-get update \ && pecl install redis
Build an image
locally
Run a container
from the image
Can i build images locally?
it's time to run!
run your container
docker build --file Dockerfile-name --tag my_image_name .docker run -d -p 8080:80 --volume $(pwd):/var/www --name my_nginx my_image_nameBuild an image:
run a container from your image:
docker run -d -p 8080:80 --volume $(pwd):/var/www --name my_nginx nginx:1.14.1RUN A CONTAINER FROM external image:
Monitor your containers
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
11 sites_angarsky-php "docker-php-entryp..." 3 months ago Up 2 weeks 9000/tcp php-fpm
22 sites_angarsky-nginx "nginx -g 'daemon ..." 8 months ago Up 2 weeks 0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp nginx
33 sites_angarsky-redis "docker-entrypoint..." 8 months ago Up 2 weeks 6379/tcp redis
44 sites_angarsky-db "docker-entrypoint..." 8 months ago Up 2 weeks 3306/tcp db
docker pslist of containers:
CONTAINER CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
11 3.09% 205.6MiB / 300MiB 68.55% 45.2GB / 13.9GB 13.1GB / 496MB 5
22 0.00% 44.56MiB / 200MiB 22.28% 419MB / 565MB 680MB / 54.7MB 8
33 0.15% 18.32MiB / 100MiB 18.32% 5.6GB / 25.1GB 27.2MB / 0B 4
44 0.63% 216MiB / 250MiB 86.39% 6.27GB / 15.9GB 1.21GB / 504GB 34docker statsresource usage statistics:
trobleshooting
docker exec -it nginx /bin/bashconnect to a container:
docker logs nginxread CONTAINER's logs:
docker cp db:/var/log/mysql/mysql-slow.log ~/sites/logs/copy a file from a container to a host:
let's practice!
github.com/DrupalSquad/traning-december18
slides.com/angarsky/ds-docker-basics
06 December 2018
DS - Docker Basics
By Semen Angarsky
DS - Docker Basics
Slides for a training: how to use the Docker.
