Docker, how to use it. organize a meeting with IBM products...

# 44
Docker, how to use it.
organize a meeting with
IBM products...
By Andrea Fontana

# 44About me
• Andrea Fontana – WebSphere & Collaborative Architect
• IBM Champion Social Business 2015,16,17
• IBM Champion forWebSphere 2012,13,14
• IBM Advocate since 2012
• Blogs – net2action.wordpress.com – razioni-k.net2action.com
• Social: @net2action – https://it.linkedin.com/in/afontana – a.fontana@net2action.com

# 44
Docker, IBM Software and Other
what, who and why
[www]

# 44Docker
• Docker is an open platform for developing, shipping, and running
applications.
• Docker is designed to deliver your applications faster.
• With Docker you can separate your applications from your
infrastructure and treat your infrastructure like a managed
application

# 44Docker & Container in a few slides
Docker is a way to “package” your software in an
image:
• File system
• System security (user/groups) & settings
• TCP Network (ports that needs to be reachable)
• Image inheritance is possible (incremental
specialization)
Docker is a way to “ship & run” your software to other
systems:
• Start an “image” to get a container where your software
runs
• Manage containers (start/stop/control etc)
• The container runs regardless of the actual (underlying)
system (VM, bare metal, etc)

# 44Docker History
• Docker was released as open source in March 2013
• Solomon Hykes started Docker in France as an internal project within dotCloud, a platform-
as-a-service company, with initial contributions by other dotCloud engineers including
Andrea Luzzardi and Francois-Xavier Bourlet.
• with the release of version 0.9, Docker dropped LXC as the default execution environment
and replaced it with its own libcontainer library written in the Go programming language.
(Google’s OpenSource Programming Language )
• In 2015, the project had over 25,600 GitHub, over 6,800 forks, and nearly 1,100
contributors.
• In May 2016 analysis showed the following organizations as main contributors to Docker:
The Docker team, Cisco, Google, Huawei, IBM, Microsoft, and Red Hat.

# 44
Docker have 3 keys components
• Docker engine
• Docker machine
• Docker registry

# 44Docker: Engine
Docker Engine is a client-server application with these major components:
• A server which is a type of long-running program called a daemon process.
• A REST API which specifies interfaces that programs can use to talk to the
daemon and instruct it what to do.
• A command line interface (CLI) client.

# 44Docker: Machine
• Docker Machine is a tool that lets you
install Docker Engine on virtual hosts,
and manage the hosts with docker-
machine commands.
• You can use Machine to create Docker
hosts on your local Mac or Windows
box, on your company network, in
your data center, or on cloud providers
like AWS or Digital Ocean.

# 44
Docker: registry… On-premises
Docker hub free-to-use, hosted Registry, plus additional features (organization
accounts, automated builds, and more).
https://hub.docker.com/_/registry/

# 44
Docker: registry… On-premises
• Running your own Registry is a great solution to integrate with your CI/CD system.
(Continuous Integration/Delivery)
• A notification from the Registry would then trigger to notify other systems that a
new image is available.
• It’s also an essential component if you want to quickly deploy a new image over a
large cluster of machines.
• Finally, it’s the best way to distribute images inside an isolated network.

# 44Docker’s architecture
Availability
• Linux
• Windows
• Mac
• Aws
• Azure
• Bluemix
• …
Docker uses a client-server
architecture !
The same image can run
on your laptop, on your server, on your cloud

# 44
High Availibilty or Business Continuities
Starting from version 1.12 Docker swarm was integrated into Docker Engine
in swarm mode:
Highlights:
• Cluster management integrated with Docker Engine
• Multi-host networking
• Load balancing
• Secure by default (TLS stricly enforced for communications)
• Scaling
• The tasks run independently of each other on nodes in the swarm

# 44
Swarm mode
There are two types of nodes: managers and workers.

# 44Swarm mode
There are two types of nodes: managers and workers.
Manager nodes
Manager nodes handle cluster management tasks:
• maintaining cluster state
• scheduling services
• serving swarm mode HTTP API endpoints
Using a Raft implementation, the managers maintain a
consistent internal state of the entire swarm and all the
services running on it
To take advantage of swarm mode’s fault-tolerance features, Docker recommends you more then one
node in accord which your high-availability requirements. When you have multiple managers you can
recover from the failure of a manager node without downtime.
• An N managed cluster will tolerate the loss of at most (N-1)/2 managers.
• Docker recommends a maximum of seven (7) manager nodes for a swarm
Worker nodes
Worker nodes are also instances of
Docker Engine whose sole purpose is to
execute containers.
Worker nodes don’t participate in the
Raft distributed state

# 44
Why Docker ?
• Create images to support developers (standard deployment)
• Keep an archive of images for every software release to perform
back-version debugging/testing (start a clean server in minutes)
• Consolidate multiple servers on a single powerful machine but
maintain complete isolation

# 44
Virtual Machine VS Container
Virtual machine runs a dedicated operating system.
EachVM has its own binaries/libraries and
application(s) that it services, and theVM may be
many gigabytes in size
Each container shares the host OS kernel and, usually, the
binaries and libraries, too.
Shared components are read-only
This makes containers exceptionally “light” – containers are
only megabytes in size and take just seconds to start, versus
minutes for aVM

# 44
Yours Containers can
be shipped!

# 44
IBM Elite and Enhanced Support for DockerTrusted Registry
IBM has announced that it will partner with Docker to
sell the product DockerTrusted Registry.
IBMTechnical Support for this product may be
purchased through
IBM Elite and Enhanced Support.
•For clients who have active support contracts, IBM
support will provide
a single point of contact for this offering.
•IBM support will team with Docker to provide
support for problems you experience.
•Since the product is provided by Docker, any fixes
will be provided by Docker.

# 44
IBM announces zSystem for Docker
IBM and Docker offer integrated container solutions that can
meet the diverse needs of enterprises.
Supporting the creation and deployment of multi-platform,
multi-container workloads across hybrid infrastructures,
IBM and Docker accelerate application delivery and enable
application lifecycle management for Dockerized containers.

# 44
IBM announces Docker on IBM Pure Application System
You can now use Docker containers in the virtual system patterns
that you create and you can reference Docker images that are
stored on Docker Hub or in a private Docker registry that runs
inside PureApplication.Taking advantage of the Docker
containers on PureApplication is as easy as building patterns.
The good news is that Docker is now supported on
IBM Pure Application v2.1!

# 44
IBM Bluemix
• IBM Bluemix provides built in DevOps services to manage source code and to build, test and deploy
applications to Bluemix.
• For more complex scenarios IBM provides the Continuous Delivery toolset UrbanCode to deploy
hybrid applications to the cloud and on-premises and to deploy composite applications with multiple
components or microservices.
• The store application uses one container on Bluemix . Containers running in a Docker Swarm cluster
on-premises.
Does anyone know this guy?
He is Niklas Heidloff, Developer Advocate for IBM Bluemix,
working on Docker on Bluemix Environment.
http://heidloff.net/article/11.11.2015100203NHECLU.htm

# 44
Today IBM support docker installation for some SoftWare
• Db2 from 10.1 10.5 , 11.1
• DB2 express *
• Websphere Application Server 8.5.5 and 9.0
• Websphere Liberty profiles *
• Domino is not supported (yet..)
• Digital experience is not supported (yet..), but announced
Offical images available on docker hub

# 44Think Pink !
IBM Connect 2017 provided insights into the future of
IBM Connections known as Connections Pink
Pink will be developed with entirely
open source tools and technologies
•Modern CI-CD framework
•StrongLoop / IBMAPI Connect (node.js/express)
•SWIFT / Go
•React.js
•MongoDB
•Redis
•Ngnx
•Docker
And one last message, Pink is a journey, not a destination !
and Docker
will be the shipper

# 44
HowTo: Create Docker images with IBM Social Software

# 44
What are the basics of the Docker system?
Source
Code
Repository
Dockerfile
For
A
Docker Engine
Docker
Container
Image Registry
Build
Docker
Host 2 OS (Linux)
ContainerA
ContainerB
ContainerC
ContainerA
Push
Search Pull
Run
Host 1 OS (Linux)

# 44Changes and Updates
Docker
Container
Image Registry
Push
Update
Bins/
Libs
App
A
AppΔ
Bins/
Base
Container
Image
Host is now running A’’
Container
Mod A’’
AppΔ
Bins/
Docker Engine
Bins/
Libs
App
A
Docker Engine
Bins/
Bins/
Libs
App
A’’
Container
Mod A’

# 44Prepare your Container
• Prepare the Installation script
• Using Silent installation method
• Preparing the response file and whatever you need to
complete setup
• Create your Docker File and deploy it.

# 44
Docker image
A docker image is a read-only template for creating containers.
• Manual: Start from a base image, build your customization and commit the new image.
• DockerFile: Use a script.
DockerFile anatomy
A “DockerFile” is a text file with docker commands, it
• Declares the “base image” to inherit from
• Copies files to the image filesystem
• Executes commands in the image to setup things
• Declares “VOLUME” mappings
• Declares ports to “EXPOSE”d.

# 44
Docker file anatomy
FROM ubuntu:latest
VOLUME [/opt/data]
VOLUME [/etc]
VOLUME [/home]
RUN apt-get install -y
aptitude
net-tools
libxtst6
libxi6
libcanberra-gtk3
gtk+
COPY DB2_Svr_10.5.0.3_Linux_x86-64.tar.gz /tmp/db210.5/ Copy your Packages into the containers
Identifies which command you need to execute
inside the containers
Identifies which folder you need to share
between container and host
Identifies which image you want to use

# 44Prepare IBM Silent Installation
You can use the IBM installation manager from command line, and create your response file sample!
IBMIM –record /tmp/was9.xml -skipInstall /tmp/IBM/
<?xml version='1.0' encoding='UTF-8'?>
<agent-input>
<variables>
<variable name='sharedLocation' value='/opt/ibm/IMShared'/>
</variables>
<server>
<repository location='/tmp/sw-repo/WAS_ND_9'/>
<repository location='/tmp/sw-repo/SDK_JAVA_V8'/>
</server>
<profile id='IBMWebSphere Application ServerV9.0' installLocation='/opt/ibm/WebSphere/AppServer'>
<data key='cic.selector.arch' value='x86_64'/>
<data key='cic.selector.nl' value='en,en'/>
</profile>
<install>

<offering profile='IBM WebSphere Application ServerV9.0' id='com.ibm.websphere.ND.v90' version='9.0.0.20160526_1854'
features='core.feature,ejbdeploy,thinclient,embeddablecontainer'/>

<offering profile='IBM WebSphere Application ServerV9.0' id='com.ibm.java.jdk.v8' version='8.0.3000.20160526_1317‘ features='com.ibm.sdk.8'/>
</install>

# 44Install from command line
imcl install packageID[_version][,featureID]
-repositories source_repository
-installationDirectory installation_directory
-accessRights mode
We can use our response file
opt/ibm/im/eclipse/tools/imcl input /tmp/was9.xml -acceptLicense
Ready to go?

# 44
WAS 9 docker file
# Select the base image to inherit from
FROM ubuntu:latest
# Image description
LABEL Description="WebSphere 9, HTTP 9, Plugin 9"
Vendor=“net2action" Version="1.0"
# Execute unix command
COPY sw-repo/* /tmp/sw-repo/
RUN apt-get update && apt-get install vim –y
RUN apt-get install -y
vim
psmisc

# 44
WAS 9 docker file
# Execute installation of IIM
RUN /tmp/sw-repo/IM185_LNX64/installc -log log_file -acceptLicense -installationDirectory /opt/ibm/im/
# Execute installation ofWAS
RUN /opt/ibm/im/eclipse/tools/imcl input /tmp/sw-repo/RESPONSE/was9.xml -acceptLicense
# Execute installation ofWAS Supplement
RUN /opt/ibm/im/eclipse/tools/imcl input /tmp/sw-repo/RESPONSE/was9supp.xml –acceptLicense
# Update hosts file and create DMGR Profile
RUN echo $(head -1 /etc/hosts | cut -f1) dmgr.ondemand.com >> /etc/hosts &&
/opt/ibm/WebSphere/AppServer/bin/manageprofiles.sh -response /tmp/sw-repo/RESPONSE/dmgr
# Update hosts file and create APPSRV Profile
RUN echo $(head -1 /etc/hosts | cut -f1) dmgr.ondemand.com >> /etc/hosts &&
/opt/ibm/WebSphere/AppServer/bin/manageprofiles.sh -response /tmp/sw-repo/RESPONSE/appsrv01

# 44WAS 9 docker file
# Create service for DMGR
RUN /opt/ibm/WebSphere/AppServer/bin/wasservice.sh -add docker-DMGR -servername dmgr
-profilePath /opt/ibm/WebSphere/AppServer/profiles/Dmgr01/ -stopArgs
‘-username waslocal -password docker'
# Create service for DMGR
RUN /opt/ibm/WebSphere/AppServer/bin/wasservice.sh -add docker-NA -servername nodeagent
-profilePath /opt/ibm/WebSphere/AppServer/profiles/AppSrv01/ -stopArgs
'-username waslocal -password docker -stopservers‘
# Create lock directory
RUN mkdir /var/lock/subsys
#Volume definition
VOLUME ["/opt/ibm/WebSphere/AppServer"]
# port exposed to external world
EXPOSE 80 443 9060 9043

# 44
Docker Host
Docker engine
Docker Client
Get Images
Own registry
A sample infrastructure
Docke Run
Docke Build
Docke Pull
Docker Push
Run it
Get Images
Own Bin Repository
Get Packges
Put Images

# 44Links
Docker training – online video course
https://training.docker.com/self-paced-training
IBM Installation Manager resources
http://tinyurl.com/ibm-im-command-line-arg
http://tinyurl.com/ibm-im-record-response
DB2 and docker some suggestion from IBM
http://tinyurl.com/db2-and-docker-from-ibm
Docker and Domino
http://tinyurl.com/domino-container-docker

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