OpenNMS meets Docker

This presentation was hold at the OpenNMS User Conference Europe (OUCE) 2015. It describes how to ship OpenNMS with Docker.

Transcript

1. Schneider Matic picture source ­ https://flic.kr/p/jEnibL OpenNMS meets Docker Ship OpenNMS Faster, Easier and with more Fun 2015­10­01 | Markus Schneider | OUCE 2015
2. @schneidermatic Markus Schneider | markus.schneider73@gmail.com | schneidermatic.blogspot.com Schneider Matic About Me
3. 3 picture source ­ https://flic.kr/p/ovqps1 Schneider Matic Agenda  Docker Basics  Run OpenNMS with Docker  OpenNMS Dockerfiles on GitHub
4. 4 picture source ­ https://flic.kr/p/ovqps1 Schneider Matic Agenda  Docker Basics  Run OpenNMS with Docker  OpenNMS Dockerfiles on GitHub
5. picture source - https://flic.kr/p/5o5H1E Docker Mantra Build Ship Run Any App Anywhere picture source ­ https://flic.kr/p/i1cyb9
6. 6 Schneider Matic Are Companies using Docker? http://www.indeed.com/jobtrends?q=docker&relative=1
7. picture source - https://flic.kr/p/5o5H1E Docker Products  Docker Architecture  Docker Engine  Docker Registry Hub  Docker Compose
8. 8 Schneider Matic Docker Architecture Profile/ Organisation Docker Daemon Container Container Container Docker Host (My Linux Box) Image 2 Image 3 Image N Image 1 Image 2 Image 3 Image N Image 1 Docker Client Docker Registry Hub Further information - https://docs.docker.com/introduction/understanding-docker/
9. 9 Schneider Matic Docker Engine  Docker Engine is build on top of the Linux kernel  Docker Engine can only be run directly on Linux OS  Boot2docker is needed for Mac and Microsoft Windows OS  https://docs.docker.com/installation/windows/#learn­ the­key­concepts­before­installing
10. 10 Schneider Matic Docker Registry Hub  Central place for Docker images  Software­as­a­Service platform for sharing, finding and extending Docker images  Features  Private repositories  Organizations and teams  Automated Builds  Webhooks  https://hub.docker.com/
11. 11 Schneider Matic Docker Compose  "Compose is a tool for defining and running multi­container applications with Docker. With Compose, you define a multi­ container application in a single file, then spin your application up in a single command which does everything that needs to be done to get it running. (source – http://docker.com) OpenNMS (Container) PostgreSQL (Container) Link docker-compose.yml opennms: image: opennms/app:16.0.2-1_co66 environment: - DB_POSTGRES_PASSWORD=mysecretpassword ports: - "8980:8980" - "18980:18980" - "1099:1099" - "8101:8101" - "61616:61616" links: - postgres postgres: image: postgres:9.4 environment: - DB_POSTGRES_PASSWORD=mysecretpassword ports: - "5432:5432"
12. picture source - https://flic.kr/p/5o5H1E Docker Components  Docker Image  Docker Container  Dockerfile picture source ­ https://flic.kr/p/82cqTr
13. 13 Schneider Matic Docker Image  A Docker image can build on top of another Docker image  The first image layer is called a base image  All the other layers except the last image layer are called parent images  Images inherit all the properties and settings of their parent images  Images can be referenced by image ID or names  Local Docker images can be listed with $ docker images
14. 14 Schneider Matic Docker Container  A Docker container is created when we execute $ docker run <image>  A writeable layer is added on top of all the image layers  This layer can have two different states:  running  exited  Changes are permanent between start & stop  Changes are not written to the underlying image
15. 15 Schneider Matic Dockerfile  A file written in a DSL that contains instructions on setting up a Docker image  The docker build command builds an image from a Dockerfile  OpenNMS Docker files are maintained on GitHub: https://github.com/opennms­forge/opennms­dockerfiles # Comment INSTRUCTION arguments FROM opennms/postgresql:pg9.3_co6.6 MAINTAINER ronny@opennms.org & markus.schneider73@gmail.com # Set work dir WORKDIR /tmp # JAVA ENV ENV JAVA_VERSION 8u45 ENV BUILD_VERSION b14 ENV JAVA_HOME=/usr/java/orajava8 # OPENNMS ENV ENV OPENNMS_HOME /opt/opennms ...
16. picture source - https://flic.kr/p/5o5H1E OpenNMS Specifics  Docker Registry Hub Repositories  OpenNMS Docker Image Types  OpenNMS Docker Image Tags picture source ­ https://flic.kr/p/kaaStW
17. 17 Schneider Matic Docker Registry Hub Repoitory
18. 18 Schneider Matic OpenNMS Docker Image Types CentOS 6.6 PostgreSQL 9.3 OpenNMS 16.0.2_01 All CentOS 6.6 OpenNMS 16.0.2_01 App CentOS 6.6 PostgreSQL 9.3 PostgreSQL
19. 19 Schneider Matic OpenNMS Docker Image Tags 16.0.2-1_pg9.3_co6.6 OpenNMS CentOS PostgreSQL
20. 20 picture source ­ https://flic.kr/p/ovqps1 Schneider Matic Agenda  Docker Basics  Run OpenNMS with Docker  OpenNMS Dockerfiles on GitHub
21. 21 Schneider Matic Docker Registry Hub Repoitory CentOS 6.6 PostgreSQL 9.3 OpenNMS 16.0.2_01 All CentOS 6.6 OpenNMS 16.0.2_01 App CentOS 6.6 PostgreSQL 9.3 PostgreSQL
22. 22 Schneider Matic Docker CLI ­ $ docker pull $ docker pull opennms/all:16.0.2­1_pg9.3_co6.6 $ export IMAGE="opennms/all:16.0.2­1_pg9.3_co6.6" $ export NAME="opennms­1" $ mkdir ~/opennms­docker && touch HelloDocker.txt $ cd ~/opennms­docker Only for the presentation needed!
23. 23 Schneider Matic Docker CLI ­ $ docker pull Profile/ Organisation Docker Daemon Docker Host (My Linux Box) Docker Client $ docker pull <image> Docker Registry Hub opennms/app: 16.0.2-1_co6.6 opennms/postgres: pg9.3_co6.6 opennms/all: 16.0.2-1_pg9.3_co6.6 opennms/all: 16.0.2-1_pg9.3_co6.6
24. 24 Schneider Matic Docker CLI ­ $ docker run $ docker run ­v $(pwd):$(pwd) ­w $(pwd) ­dit ­p 8980:8980 ­p 8443:8443 ­p 18980:18980 ­p 1099:1099 ­p 8101:8101 ­p 61616:61616 ­p 5432:5432 ­­name $NAME $IMAGE
25. 25 Schneider Matic Docker CLI – $ docker run Profile/ Organisation Docker Daemon Docker Host (My Linux Box) Docker Client $ docker run <image> Docker Registry Hub opennms/app: 16.0.2-1_co6.6 opennms/postgres: pg9.3_co6.6 opennms/all: 16.0.2-1_pg9.3_co6.6 opennms/all: 16.0.2-1_pg9.3_co6.6 opennms-1
26. 26 Schneider Matic Docker CLI ­ $ docker inspect $ CONTAINER_ID=$(docker ps | grep "$IMAGE" | awk '{ print $1 }') $ IP_ADDRESS=$(docker inspect ­f '{{ .NetworkSettings.IPAddress }}' $CONTAINER_ID) $ printf "OpenNMS Console ­ http://$IP_ADDRESS:8980/opennms\n"
27. 27 Schneider Matic Docker CLI – Running Container
28. 28 Schneider Matic Docker CLI – $ docker attach $ docker stop $CONTAINER_ID && docker start $CONTAINER_ID $ docker attach $CONTAINER_ID $ CRTL + P, CRTL + Q # detach from the container
29. 29 Schneider Matic Docker CLI – $ docker run Profile/ Organisation Docker Daemon Docker Host (My Linux Box) Docker Client $ docker run <image> Docker Registry Hub opennms/app: 16.0.2-1_co6.6 opennms/postgres: pg9.3_co6.6 opennms/all: 16.0.2-1_pg9.3_co6.6 opennms/all: 16.0.2-1_pg9.3_co6.6 opennms-1 psql
30. 30 Schneider Matic Docker CLI – $ docker attach $ psql ­U postgres ­h $IP_ADDRESS $ postgres # \l
31. 31 Schneider Matic Docker Registry Hub Repoitory CentOS 6.6 PostgreSQL 9.3 OpenNMS 16.0.2_01 All CentOS 6.6 OpenNMS 16.0.2_01 App CentOS 6.6 PostgreSQL 9.3 PostgreSQL
32. 32 Schneider Matic Docker Compose $ cd ~/opennms­docker $ git clone https://github.com/opennms­forge/opennms­docker­compose $ cd ./opennms­docker­compose && git checkout app/16.0.2­1_co66 $ docker­compose up ­d
33. 33 Schneider Matic Docker Compose Profile/ Organisation Docker Daemon Docker Host (My Linux Box) Docker Client Docker Registry Hub opennms/app: 16.0.2-1_co6.6 opennms/postgres: pg9.3_co6.6 opennms/all: 16.0.2-1_pg9.3_co6.6 opennms/all: 16.0.2-1_pg9.3_co6.6 opennms-1 opennms/app: 16.0.2-1_co6.6 opennms/postgres: pg9.3_co6.6 Docker Compose $ docker­compose up ­d
34. 34 Schneider Matic Docker Compose Profile/ Organisation Docker Daemon Docker Host (My Linux Box) Docker Client Docker Registry Hub opennms/app: 16.0.2-1_co6.6 opennms/postgres: pg9.3_co6.6 opennms/all: 16.0.2-1_pg9.3_co6.6 opennms/all: 16.0.2-1_pg9.3_co6.6 opennms-1 opennms/app: 16.0.2-1_co6.6 opennms/postgres: pg9.3_co6.6 Docker Compose $ docker­compose up ­d opennms-2 postgresql-1
35. 35 Schneider Matic Docker Compose $ docker ps
36. 36 picture source ­ https://flic.kr/p/ovqps1 Schneider Matic Agenda  Docker Basics  Run OpenNMS with Docker  OpenNMS Dockerfiles on GitHub
37. 37 Schneider Matic OpenNMS Forge docker
38. 38 Schneider Matic OpenNMS Forge
39. 39 picture source ­ https://flic.kr/p/ovqps1 Schneider Matic Thank You! Questions?