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Max Hemingway

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Max Hemingway

Category Archives: DevOps/OpsDev

Boiling Frogs

30 Friday Sep 2016

Posted by Max Hemingway in Development, DevOps/OpsDev, Programming

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Development, DevOps, OpsDev, Programming

GrowIf you haven’t read “Boiling Frogs” by the GCHQ, its is well worth a read. The paper has been made available on GitHub – this is their research paper on software development and organisational change in the face of disruption.

To quote the Exec Summary:

This paper identifies and examines critical business characteristics that promote business and technical agility describing how organisations need “less of” some characteristics and “more of” others. Rather than changing one of these characteristics in isolation, we believe that organisations need to improve holistically, not in terms of a binary step change, but in terms of force-multiplying cohesive change. For each characteristic, we propose a direction of change covering:
• Operating Model (including structure and interaction styles)
• Organisational cultures
• Use of accommodation
• Approach to measurement
• Skills management
• Use of commercial suppliers
• Leveraging Big Data
• Approach to architecture
• Use of processes and techniques
• Approach to Security
• Approach to HR
Finally, this paper includes some of the background reasoning collated from internal blogs related to organisational structuring, types of jobs and the effects of Conway’s Law on business change.

Source: GCHQ Boiling Frog

Conways law states:

organizations which design systems … are constrained to produce designs which are copies of the communication structures of these

The law is based on the reasoning that in order for a software module to function, multiple authors must communicate frequently with each other. Therefore, the software interfaces structure of a system will reflect the social boundaries of the organization(s) that produced it, across which communication is more difficult. Conway’s law was intended as a valid sociological observation, although sometimes it’s taken in a humorous context.

Source: Wikipedia

The paper can be found at https://github.com/gchq/BoilingFrogs

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State of DevOps Report 2016

23 Thursday Jun 2016

Posted by Max Hemingway in DevOps/OpsDev

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DevOps, OpsDev

GrowPuppet have released their latest “State of DevOps Report for 2016“.

Having read the previous couple of years these reports give a good level of what is going on across the industries and effeminately worth downloading and reading.

Highlights from the latest reports are:

  • High-performing IT organizations deploy 200 times more frequently than low performers, with 2,555 times faster lead times.
  • They have 24 times faster recovery times and three times lower change failure rates.
  • High-performing IT teams spend 50 percent less time remediating security issues.
  • And they spend 22 percent less time on unplanned work and rework.
  • Employees in high-performing teams were 2.2 times more likely to recommend their organization as a great place to work.
  • Taking a lean approach to product development (for example, splitting work into small batches and implementing customer feedback) predicts higher IT performance and less deployment pain.

Source: https://puppet.com/resources/white-paper/2016-state-of-devops-report

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How do we use Docker?

19 Tuesday Apr 2016

Posted by Max Hemingway in Development, DevOps/OpsDev

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Development, DevOps, OpsDev

dockerDocker have released a their latest report and findings into how Docker is currently being used and the trends coming out.Docker 2016 Report.

Some of the key findings from the report are below:

What container orchestration and management solutions are you using/evaluating?

34% Docker Swarm
32% Google Kubernetes
29% Amazon ECS
21% None

Key Finding 1: The Docker pattern provides agility, portability and control.

Desired Benefit/Outcome:

65% Accelerate software development
48% Better control and standardisation
42% Application Portability

In 2016 43% of responders have stated that they will be looking to utilise Docker to assist with Legacy Applications to Micro-services. This appears to be a new use case for this year.

Docker Use Cases planned for 2016

50% Continuous Delivery
47% New Microservices app
43% Legacy App to Microservies
41% Continuous Integration
39% DevOps
37% Containerize Legacy App

Key Finding 2: Docker is delivering quantifiable improvements to application delivery by accelerating DevOps practices

65% Accelerate software development
48% Avoid cloud lock in
42% Application portability
33% Increase rate of innovation
33% Quickly adapt to future changes
33% Improve infrastructure resource

Key Finding 3: Docker is central to hybrid cloud strategies as it enables freedom of choice of on premises, private and public environments.

80% of organizations using Docker have described it as central to their cloud strategy

Docker enables the transition to a modern app development pipeline 

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Are you rethinking your Java Plugin’s

29 Friday Jan 2016

Posted by Max Hemingway in DevOps/OpsDev, Programming, Security

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Coding, Programming, Security

Oracle have recently announced via a blog post that they are going to deprecate the Java browser plug in JDK9 and remove it from future releases.

By late 2015, many browser vendors have either removed or announced timelines for the removal of standards based plugin support, eliminating the ability to embed Flash, Silverlight, Java and other plugin based technologies.

With modern browser vendors working to restrict and reduce plugin support in their products, developers of applications that rely on the Java browser plugin need to consider alternative options such as migrating from Java Applets (which rely on a browser plugin) to the plugin-free Java Web Start technology.

Oracle plans to deprecate the Java browser plugin in JDK 9. This technology will be removed from the Oracle JDK and JRE in a future Java SE release.

Early Access releases of JDK 9 are available for download and testing at http://jdk9.java.net. More background and information about different migration options can be found in this short whitepaper from Oracle.

Source: https://blogs.oracle.com/java-platform-group/entry/moving_to_a_plugin_free

JavaMost browsers are already removing plugin support or don’t support extensions any more. See links below:

  • Firefox
  • Edge
  • Chrome

Oracle are addressing this through their Java Web Start which downloads the relevant files to your computer if not present then caches them for later use.

Java Web Start is an application-deployment technology that gives you the power to launch full-featured applications with a single click from your Web browser. You can now download and launch applications, such as a complete spreadsheet program or an Internet chat client, without going through complicated installation procedures.

Java Web Start includes the security features of the Java platform, so the integrity of your data and files is never compromised. In addition, Java Web Start technology enables you to use the latest Java SE technology with any browser.

With Java Web Start, you launch applications simply by clicking on a Web page link. If the application is not present on your computer, Java Web Start automatically downloads all necessary files. It then caches the files on your computer so the application is always ready to be relaunched anytime you want—either from an icon on your desktop or from the browser link. And no matter which method you use to launch the application, the most current version of the application is always presented to you.

Source: http://docs.oracle.com/javase/8/docs/technotes/guides/javaws/

However this may not be plain sailing as pointed out in this blog post from Openmicroscopy

What does it mean for desktop developers/administrators?

To deploy Java Web Start, one first needs to get familiar with Deployment Rule Sets. Administrators can then create a list of known-safe applications and manage compatibility between different versions of Java on the system. Each browser will have their own set of dialogs and control mechanisms.

It is getting harder and harder to distribute Java Web Start applications for developers and/or administrators.

Source: http://blog.openmicroscopy.org/tech-issues/future-plans/2015/09/23/java-web-start/

Other useful reads:

NPAPI Plugin Perspectives and the Oracle JRE

 

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Easier Markdown with GitHub

28 Thursday Jan 2016

Posted by Max Hemingway in DevOps/OpsDev, Open Source, Programming

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Coding, DevOps, Open Source, OpsDev, Programming

Github

Its good to see that GitHub has now provided a toolbar to aid in formatting Markdown.

This will help some users from using HTML code format to a word processor GUI type experience. It should appeal to those who are starting out on their coding journey or want an easier life not having to remember if they have included all the <> and </> commands in their files.

Below is an example of a Markdown file that I did as part of a Data Science Coursera Course:  https://github.com/Cloudmage/ExData_Plotting1/blob/master/CodeBook.md

 

Code Book for Project 1 for Exploritory Data Analysis Course – Coursera
=======================================================

## Data Source
* <b>Dataset</b>: <a href=”https://d396qusza40orc.cloudfront.net/exdata%2Fdata%2Fhousehold_power_consumption.zip”>Electric power consumption</a> [20Mb]

* <b>Description</b>: Measurements of electric power consumption in
one household with a one-minute sampling rate over a period of almost
4 years. Different electrical quantities and some sub-metering values
are available.

## Data Sets Used

The following descriptions of the 9 variables in the dataset are taken
from
the <a href=”https://archive.ics.uci.edu/ml/datasets/Individual+household+electric+power+consumption”>UCI
web site</a>:

<ol>
<li><b>Date</b>: Date in format dd/mm/yyyy </li>
<li><b>Time</b>: Time in format hh:mm:ss </li>
<li><b>Global_active_power</b>: household global minute-averaged active power (in kilowatt) </li>
<li><b>Global_reactive_power</b>: household global minute-averaged reactive power (in kilowatt) </li>
<li><b>Voltage</b>: minute-averaged voltage (in volt) </li>
<li><b>Global_intensity</b>: household global minute-averaged current intensity (in ampere) </li>
<li><b>Sub_metering_1</b>: energy sub-metering No. 1 (in watt-hour of active energy). It corresponds to the kitchen, containing mainly a dishwasher, an oven and a microwave (hot plates are not electric but gas powered). </li>
<li><b>Sub_metering_2</b>: energy sub-metering No. 2 (in watt-hour of active energy). It corresponds to the laundry room, containing a washing-machine, a tumble-drier, a refrigerator and a light. </li>
<li><b>Sub_metering_3</b>: energy sub-metering No. 3 (in watt-hour of active energy). It corresponds to an electric water-heater and an air-conditioner.</li>
</ol>

New Toolbar

 

 

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Installing the Docker Toolbox – Exit Status 255 and 1

18 Monday Jan 2016

Posted by Max Hemingway in Development, DevOps/OpsDev, Open Source

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Development, DevOps, Docker, Open Source, OpsDev

I installed docker using the docker toolbox v1.9.1 application download and executable onto a Windows laptop.

Available at https://github.com/docker/toolbox/releases

The docker toolbox installs a number of components including:

  • dockerdocker 1.9.1
  • docker-machine 0.5.6
  • docker-compose 1.5.2
  • Kitematic 0.9.5.1
  • Boot2Docker ISO 1.9.1
  • VirtualBox 5.0.12

The first installation I did resulted in an issue with the IP addressing on the virtual adapters.

Docker IP

 

I tried fixing this in docker and VirtualBox, but did not have much success, so decided to go back to basics and remove and reinstall.

I did the reinstall as for some reason VirtualBox hung on the suggestion of removing the default vm and recreating it . First command below:

$ docker-machine rm default
$ docker-machine create --driver virtualbox default

This fix has worked for others though. I went slightly drastic with the reinstall but could’nt find why VirtualBox was not behaving.

Useful links/discussion on Exit Status 255:

  • https://github.com/docker/toolbox/issues/317
  • https://github.com/docker/machine/issues/1801#issuecomment-147101937

Having reinstalled the applications rebooted and started the docker VM I was faced with an error message that something went wrong – exit status 1.

docker 2

Thankfully these days putting error messages into Google finds help as well as RTM (Read The Manual).

Having read a number of posts on the subject and trying some of the recommendations, I ended up upgrading VirtualBox to the latest test build v5.0.13. This resolved the issue and docker started correctly.

Useful links/discussion on Exit Status 1:

  • https://github.com/docker/machine/issues/1716).

Testbuilds of VirtualBox available at:

  • https://www.virtualbox.org/wiki/Testbuilds

Now fixed I can use docker on this laptop.

docker3

 

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8 Free “For Dummies” books you should read in 2016

12 Tuesday Jan 2016

Posted by Max Hemingway in Architecture, Cloud, Development, DevOps/OpsDev, Enterprise Architecture, Innovation, Programming, Security

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Architecture, Development, DevOps, Knowledge, OpsDev, Productivity, Programming, Security, Tools

There has been a lot of the free smaller versions of the “For Dummies” books published recently. These are normally sponsored by a company to help promote a way of thinking/product/etc, however they do contain useful overviews and information on the subject that they are presenting on.

Here are my top 8 of these which should be on your reading list for the start of 2016. All are downloadable in PDF format*.

Agile for Dummies

API for Dummies

DevOps for Dummies

Micro-segmentation for Dummies

Next Generation Endpoint Security for Dummies

Software Defined Data Centres for Dummies

Software Defined Networking for Dummies

Software Defined Storage for Dummies

*You may need to sign up to receive some of these books.

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Manual tasks of today should be the Automated tasks of tomorrow

11 Monday Jan 2016

Posted by Max Hemingway in Architecture, Development, DevOps/OpsDev, Innovation, Open Source, Productivity, Programming, Tools

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Tags

Architecture, Development, DevOps, Open Source, Productivity, Tools

“Manual tasks of today should be the Automated tasks of tomorrow”.

CogsThere are lots of Automation tools available to people and businesses today to automate tasks that are carried out in a manual way. The pace at which this is happening is varying based on Habits and Patterns that we use on a daily basis. Also because change is involved which sometimes causes its own set of anxieties and issues.

Back in 2012 Bruno Oliveir published a graph on G+ on Geeks and repetitive tasks, which, shows a view of time vs task and how as geek vs non geek might approach automation.

geeks-vs-nongeeks-repetitive-tasks

An alternative view was published by Jon Udell in 2012 – Another way to think about geeks and repetitive tasks which shows an alternative view adding in more steps to show repetition.

alternate-view-of-automation

xkcd has an interesting view on the subject that does ring true in some cases where something does not exist and needs to be created in order to Automate.

automation

You need to be careful that in spending lots of time in trying to automate a task, that you don’t may spend more time in developing automation than could have been spent actually doing the task.

To get over this an element that is missing from these graphs is reuse and blueprints/patterns. The chances are that someone else has had a go at doing what your about to automate so there may be something to reuse rather than developing something yourself.

There are lots of tools and code repositories available today with more being developed. It will depend upon what you are automating as what to use.

Some of the tools available include;

  • Chef
  • Docker
  • Github
  • Jenkins
  • Jira
  • Powershell
  • Puppet

There are too many to list – lots of others available.

Using an Agile approach as well may reduce the length of the task size line on the graph as you do not need to boil the ocean to automate. Break up tasks into their components and you may find it easier to automate.

These tools are also bringing the geek and non geek lines together as Application’s and API’s make it easier for automation to be implemented. The plot of the graph changes into a repeatable process and in effect becomes a loop for both the geeks and non geeks.

Automate

So what will you automate today?

 

 

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DevOps ES2015 – Slides/Videos

08 Friday Jan 2016

Posted by Max Hemingway in DevOps/OpsDev, Uncategorized

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DevOps, OpsDev

GrowFrom last year but still a great source of information from the DevOps Enterprise Summit 2015 that was run last year.

These provide a great view into how other organisations are using DevOps within their business and in some cases its OpsDev.

Speaker Decks  http://www.slideshare.net/DOESsummit15

Youtube Channel: DevOps Enterprise Summit – YouTube

I’ve previously listed the 2014 sides and videos on this blog post

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An A-Z Guide to being an Architect

07 Thursday Jan 2016

Posted by Max Hemingway in Architecture, Big Data, Cloud, Development, DevOps/OpsDev, Enterprise Architecture, Governance, Innovation, IoT, Open Source, Productivity, Programming, Security, Social Media, Tools

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Architecture, Cloud, CPD, Data, Development, DevOps, Innovation, IoT, Knowledge, learning, Open Source, OpsDev, Productivity, Programming, Social Media

Back in 2008 Microsoft published An A-Z Guide to ABCBeing an Architect in their Architecture Journals.

Here is my take on an updated A to Z Guide to being an Architect. A couple of these may be similar.

A – Architect

Having the right level of skills as an Architect or engaging an Architect with the right level of skills will depend on the work needing to be undertaken. There are several types of Architect with some specialising in certain areas and others being multi domain skilled. The list below covers some of the different types of Architect- this is not an exhaustive list:

  • Enterprise Architect
  • Information Architect
  • Solutions Architect
  • Software Architect
  • Systems Architect

B – Blueprints

Following Blueprints and Patterns either published by vendors (such as the Microsoft Blueprints) or developed internally around your products and services will ensure repeat-ability and cost control around the design process.

Some examples showing different pattern types can be found at Architecture Patterns

C – Contextual Web Era

The up and coming 4th Platform area is the Contextual Web Era

  • 1st Platform – Mainframe Era
  • 2nd Platform – Client Server Era
  • 3rd Platform – Cloud Era
  • 4th Platform – Contextual Web Era

This is an up and coming era with lots of new innovation and developments. Keeping up with developments is key going forward for any architect to understand designs/solutions, art of the possible now and future, innovation and for developing roadmaps for solutions.

D – DevOps

To quote Wikipedia – “DevOps (a clipped compound of “development” and “operations”) is a culture, movement or practice that emphasizes the collaboration and communication of both software developers and other information-technology (IT) professionals while automating the process of software delivery and infrastructure changes”. Having knowledge of DevOps, OpsDev and Agile assist with Architecting a solution for a business understanding their practices and modes of interacting with technology to meet business requirements. A Good book on the subject of DevOps is “The Phoenix Project” by Gene Kim.

E – Enterprise Architecture

EA (Enterprise Architecture) is a blueprint that defines how a business can meet its objectives and strategy. This is achieved by conducting analysis, design, planning, recommendations and implementations through an Enterprise Architecture Framework

Enterprise Architecture Wikibook

F – Four Two Zero One Zero

42010 is the ISO Standard that most frameworks adhere to. Working to a Framework brings structure to your designs and life cycles.

There are a number of frame works available such as:

  • DoDAF
  • MoDAF
  • TOGAF
  • Zachman
  • Other Frameworks are available

Enterprise Architecture Wikipedia Book

G – Governance

Governance is an important part of architecture as it

  • Ensures Conformance
  • Controls Variance
  • Maintains Vitality
  • Enables Communication
  • Sets Direction
  • Issue Resolution
  • Provides Guidance and Prioritisation
  • Promotes Best Practise
  • Minimises Risk
  • Protects IT environments from tactical IT changes, project solutions, and strategic proposals that are not in an organisations global best interest
  • Controlling Technical Diversity, Over-Engineering and Unnecessary Complexity
  • Ensures projects can proceed quickly & efficiently
  • Control over IT spend
  • Quality Standards
  • Efficient and optimal use of resources and increase the effectiveness of IT processes

H – Hands On

It is important to be current and understand the technologies you are architecting. There are lots of options available to get your hands dirty using technology from using Cloud Servers to virtual machines on your compute device. There are other computing devices such as the Raspberry PI that provide a cheap alternative to standing up small farms to learn on.

I – IoT

IoT (Internet of Things) is where physical things are connected by the internet using embedded sensors, software, networks and electronics. This allows the items to be managed, controlled and reported on. My blog posts on IoT Device Security Considerations and Security Layers goes into more detail on this subject.

J – Juxtaposition

Juxtaposition is something an architect should be doing to compare things/items/artefacts etc.
noun;
1. an act or instance of placing close together or side by side, especially for comparison or contrast.
2.the state of being close together or side by side.

Source:http://dictionary.reference.com/browse/juxtaposition

K – Knowledge

I would class Skills with Knowledge. It is important as an Architect to ensure that your skills/knowledge are up to date and where you are unsure of a technology, you have a plan to address and skill up. Build a good CPD (Continuing Professional Development) plan and work towards completing it.

L – Language

With the move to cloud it is important to ensure your scripting skills are up to date as most cloud platforms use scripting to assist with the deployment of environments. This is also true of other DevOps/OpsDev applications. If you are unsure on what to learn this guide may help you – Learn a Programming Language – But which one?

M -Micro Segmentation

Micro Segmentation allows a business to use Networks, Compute and Storage to automate and deliver complex solutions by carving up and using the infrastructure. This segments part of the infrastructures to specific functions/tasks. It can also be used in a security context to segment networks, firewalls, compute and storage to increase security and reduce cyber attacks.  VMware have produced a book “Micro Segmentation for Dummies” that can be downloaded from here.

N – Next Generation

Next Generation refers to the next stage or development to something such as a new release of hardware or software. Next Generation is becoming a common term now to define products and artefacts, an example being Next Generation Firewalls.

O – Open Source

Open Source has been available for a long time with software such a Linux, however there is a bigger shift towards using Open Source and acceptance by businesses. Some examples of Open Source that is now mainstream within business include;

  • Ansible
  • Chef
  • Docker
  • Puppet

P – Performance

Performance can cover people as well as solutions / systems. Performance metrics should be set out at the inception of an engagement then monitored and reported on. This will be a factor in driving Continuous Improvement going forward as well as forecasting / planning for future upgrades and expansion.

Q – Quality

Quality is a huge subject and has a lot if standards governing it and how it affects all aspects of business and architecture. Knowing which standards and how they affect a solution will assist in the whole architecture lifecycle. There are also a number of tools available to help you;

  • Architecture Frameworks
  • ITIL
  • Six Sigma

There is also a level of pride and satisfaction in producing a quality solution and system achieving the objectives and requirements set out by the business.

R- Roadmap

Any architecture/solution should have a roadmap to set out its future. Roadmaps should include items such as:

  • Current state
  • Future state
  • Innovation
  • Upgrades / Releases
  • New Features / Functions
  • End of Life / Replacement

S – SMAC

SMAC stands for Social, Mobile, Analytics, Cloud. SMAC is an acronym that covers the areas and concepts when these four technologies are brought together to drive innovation in business. A good description of SMAC written by a colleague can be found here Acronyms SMAC.

T – Transformation

The majority, if not all systems will undergo a form of transformation. This may be in the form of a simple upgrade or to a complex redesign and migration to something else.

U – UX

UX (User eXperience) affects how people interact with your architecture / design and how they feel about it (emotions and attitudes). With the boom in apps and the nearing Contextual Web Era, UX is one of the most important factors to getting an architecture used. If your users don’t like the system they may find something else to use that they like.

V – Vision

Understanding the vision of your customer and their business is the driving factor for any architecture.

On working with your customer you should look to become a Trusted Advisor and also with your colleagues. A great book on the subject is The Trusted Advisor by David Maister. The book covers 3 main areas which discusses perspectives on trust, the structure of trust building and putting trust to work.

W – WWW

The internet is a key delivery mechanism for systems. Knowing how this works and key components to the internet should be understood such as:

  • IPV4 – IPV6
  • DNS
  • Routing
  • Connectivity
  • Security

X – X86

X86 – is a standard that every knows as its one of the most common platform types available.

Y – Year

Year is for the longevity of the solution you are designing. How many years are your expecting it to last What are the Business Requirements, statutory obligations, depreciation etc that need to be planned in. Consider things like End of Life, Maintenance and Upgrades on hardware and software from a solution point of view.

Z – Zero Defects

The best solution is the one with zero defects, but reaching this goal can be a challenge and can also consume a lot of expense. The best way to ensure Zero Defects is to use:

  • Best Practice
  • Reference Architectures
  • Blueprints/Patterns
  • Checklists
  • Reuse
  • Lessons Learnt

This is my current A to Z and some of the entries may be different in your version so “What is in your A to Z of being an Architect?”

I will look to write some further blog posts on the areas listed in this A to Z

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