First practical playing with Docker (made for internal company workshop about Docker)

docker_tutorial.md

First practical playing with Docker

Made for internal company workshop about Docker.

Installation

Linux

$ sudo wget -qO- https://get.docker.com/ | sh
$ sudo usermod -aG docker $USER

MAC OSX

https://github.com/boot2docker/osx-installer/releases/tag/v1.7.1

Create our first Dockerfile (ElasticSearch 1.6.0)

FROM debian:jessie
MAINTAINER Petr Kohut <me@petrkohut.cz>

RUN apt-get update && apt-get install -y openjdk-7-jre-headless wget curl
RUN curl -L -O https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-1.6.0.tar.gz \
 && mkdir -p /usr/local/es \
 && tar -xzf elasticsearch-1.6.0.tar.gz -C /usr/local/es --strip-components=1 \
 && /usr/local/es/bin/plugin --install lmenezes/elasticsearch-kopf/master

ENV JAVA_HOME /usr/lib/jvm/java-7-openjdk-amd64

EXPOSE 9200 9300

WORKDIR /usr/local/es/

VOLUME ["/usr/local/es/logs", "/usr/local/es/data"]

ENTRYPOINT ["/usr/local/es/bin/elasticsearch"]
CMD ["--cluster.name www"]

Create a Makefile

IMAGE = elasticsearch
NAME = elasticsearch
PORTS = -p 9200:9200 -p 9300:9300
VOLUMES = \
	-v $$HOME/docker-session/logs:/usr/local/es/logs \
	-v $$HOME/docker-session/data:/usr/local/es/data

.PHONY: build run stop inspect rm logs ports

build:
	docker build -t $(IMAGE) .

run:
	docker run -d --name $(NAME) $(PORTS) $(VOLUMES) $(IMAGE)

stop:
	docker stop $(NAME)
	docker rm $(NAME)

inspect:
	docker exec -it $(NAME) bash

rm:
	docker rm $(NAME)

logs:
	docker logs $(NAME)

ports:
	docker port $(NAME)

Build image

make build

Run container

make run

Check in browser that ES is running

Linux:

http://localhost:9200/_plugin/kopf

MacOSX:

first get an IP

boot2docker ip

then go to: http://%BOOT2DOCKER_IP%:9200/_plugin/kopf