Dockerize your Grails App for more deployment fun - Gr8Conf EU 2016

Do you know the pain of maintaining different Versions of Grails, Redis, PhantomJS or Postgres on your development box to work with various projects you’re involved in over time? Even if you get it done, how is this repeatable if a new colleague starts at your company? How do you set up testing environments for QA with different versions of your apps? Docker can be the answer to this.

In this talk i will introduce Docker and tell you why it’s worth looking at from a developer's perspective. Starting with different introductory examples, we will dockerize a “real world” Grails app with dependent services. Additionally we’ll have a look at the differences Grails 3 brings to the table regards containerization.

You will learn that managing the mentioned problems and more becomes a breeze and can even be a lot of fun.

Transcript

1. Dockerize your Grails app Mario David
2. Mario David Software Developer | road-to-cuba-and-beyond.com | mariomddavid
3. What is a Container? standardized isolated App + all depencencies
4. Hypervisor vs. container based Virtualization Hypervisor App OS App OS App OS OS App Userspace App Userspace App Userspace
5. What is Docker? - Example of Container-Virtualization ...actually a pretty old idea: Segmentation marketing technological lightweight Hypervisor VM shared Linux Kernel Isolation Namespaces Ouality of Service Cgroups OS App Userspace App Userspace App Userspace Solaris Zones OpenVZ FreeBSD Jails LPAR LXC
6. What is Docker? - At the right place at the right time Accessibility Cloud DevOps Docker Hub Community
7. Docker for Developers dev == prod Distribution mechanism share your environment One dependency
8. “ Talk is cheap, show me the code
9. • “bit.ly for your own domain” • Grails 2.5 application • Database dependency • github.com/ManningPublications/3oh1 3oh1 as a Docker Container $ docker run -it --rm -p 9000:8080 mariodavid/3oh1
10. even easier... Docker as Grails 3 App $ docker run -it --rm -p 9001:8080 mariodavid/grails3-docker FROM java:8-jre-alpine ADD app.war /tmp/app.war CMD java -jar /tmp/app.war Dockerfile
11. Thank you! road-to-cuba-and-beyond.com | mariomddavid