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August 29, 2018 | Software Consultancy
My last year or so here at OpenCredo has involved a very well-supported first foray into tech consultancy. Different engagements pose both unique, as well as familiar challenges for me as a consultant, all of which played a part in shaping and moulding the way I understand and approach problems. This blog is a brief collation of wisdom that’s helped me the most during this adventure; gained by learning the hard way, as well as that acquired from mentoring and colleagues who have gone before. The shared wisdom has made me a much more effective consultant, and kept me sane in the process, for which I’m very thankful.
Recently I was working on a project that was using SaltStack for configuration management and Consul for service discovery. It occurred to me that using Consul’s key/value store would be great place to store data needed for my Salt runs, but unfortunately Consul was not supported in SaltStack as an official data store at that point in time. Being an open source project however, this provided an excellent opportunity to contribute back and this blog post looks to provide some details on how this works, as well as a practical demo on how you can take advantage of Consul as an external data store.
May 24, 2022 | Software Consultancy
Watch Simon Copsey’s talk from the Agile Ex Meetup on “Coaching at the Organisational Level” where he explores some of the common downward spirals in IT and the larger organisation, as well as the tools that coaches and individuals can use to surface and discuss them in a way that allows for systemic change, even without formal authority.
Developing a Terraform provider is a great thing for a company to do as it allows customers to quickly integrate a product with their existing systems with very little friction. During development, occasionally there might be bugs and issues to fix, and it can be quite difficult to work out what is causing them. In this post, I outline how you can attach a debugger such as Delve to a Terraform provider to save time when solving these issues.
The Cloud Native landscape can be bewildering, and not only for newcomers. As a traveller on the Cloud-native journey, I have sometimes been overwhelmed by the number of products and projects. This is why I took hold of the opportunity to go to Day 3 of the Cloud Native London Conference last month hosted by Skills Matter.
Here are my top highlights from Day 3 of the CloudNative London 2019.
Terraform 0.12 in recent years has emerged as the de facto standard with regards to defining and managing cloud infrastructure. It is one of four primary tools offered by HashiCorp, (Terraform, Vault, Consul and Nomad) and underpins the workflows that make up their Cloud Operating Model.
Since its first release in 2014, the wider Terraform community has embraced frequent releases and this past year has been no exception. HashiCorp announced the release of Terraform 0.12 in May 2019 and as of writing this post the official release is 0.12.9.
Creating and managing a Public Key Infrastructure (PKI) could be a very straightforward task if you use appropriate tools. In this blog post, I’ll cover the steps to easily set up a PKI with Vault from HashiCorp, and use it to secure a Kafka Cluster.
July 13, 2018 | Software Consultancy
As a consultant I often find myself in situations that require tricky problem solving, typically of a technical nature. Yet although it is common to approach a consultancy engagement in terms of its technical context, not all problems have a purely technical solution.
May 31, 2018 | DevOps
As traditional operations has embraced the concept of code, it has benefited from ideas already prevalent in developer circles such as version control. Version control brings the benefit that not only can you see what the infrastructure was, but you can also get reviews of changes by your peers before the change is made live; known to most developers as Pull Request (PR) reviews.
We are excited to announce that our Lead Consultant, Pergerto Fernandez is presenting at Kafka Summit London 2018! Kafka Summit is the premier event for data architects, engineers, devops professionals, and developers who want to learn about streaming data.
February 6, 2018 | Cloud
Among the many announcements made at Re:Invent 2017 was the release of AWS Privatelink for Customer and Partner services. We believe that the opportunity signalled by this modest announcement may have an impact far broader than first impressions suggest.
Machine Learning is a hot topic these days, as can be seen from search trends. It was the success of Deepmind and AlphaGo in 2016 that really brought machine learning to the attention of the wider community and the world at large.
Agile Cambridge is a three day practical agile development conference that allows participants to connect and learn from their peers and leaders in the industry. Join Matt Long, our senior QA consultant on the 29th of September for the third day of Agile Cambridge for a case study on a ‘from the trenches’ experience.
Over the years, OpenCredo’s projects have become increasingly tied to the public cloud. Our skills in delivering cloud infrastructure and cloud native applications have deepened and the range of cloud projects we are able to take on has grown. From enterprise cloud brokers to cloud platform migration in restricted compliance environments, our ability to deliver on the cloud is now a core component of our value proposition.
We are pleased to announce that we are event partners of The National DevOps Conference 2017, where our senior consultants Nicki Watt and Rafal Gancarz will also be presenting. The annual National DevOps Conference is the event for those seeking to bring lean principles into the IT value stream and incorporate DevOps and continuous delivery into their organisation. The conference is targeted towards C-level executives interested in learning about the professional movement and its cultural variations that assist, promote and guide a collaborative working relationship between Development and Operations
Join us as we conclude our recent Apache Spark series with a webinar that will explore the use case of “Detecting stolen AWS credential usage with Spark”
The London Hashicorp meetup is back on May the 16th! Hi Everyone! May’s event is confirmed and as always we are in for a cracker! Firstly, thank you to the people at Moo.com who have very kindly offered us a space for the event. Secondly, thank you to the guys and girls at Fastly for […]
We are excited to announce that we are sponosring this years Agile Manchester conference that will run from the 10th to the 12th of May. Our lead consultant, Tristan McCarthy will also be speaking on his experience in both agile testing and project management to help you get the most out of your processes and avoid some common pitfalls.
We are pleased to announce that we are sponsors of QCon 2017, where our Lead Consultant, Rafal Gancarz and Consultant Matt Long will be speaking. Our Chief Scientist, Daniel Bryant will also be hosting the track: Observability Done Right – Automating Insight & Software Telemetry.
We are excited to announce that we are sponsoring the Linuxing In London Meetup this month! Brett Mack, DevOps Consultant will be doing an introduction to userland rootkits, software engineer at notonthehighstreet, Nick Jackson, will be speaking about Swift coding on Linux and organiser of Linuxing In London, Brian Byrne will give a quick talk on Raspberry Pi.
Our Lead Consultant, Rafal Gancarz will be speaking at the Serverless London February Meetup. This month the meetup will be hosted by onefinestay and will kick off at 6:30pm. There will also be some great talks on Serverless by James Thomas from IBM and Dave Blooman from FundApps.
Our Chief Scientist, Daniel Bryant and Consultant Andrew Morgan will be heading to Munich for the Microservices Meetup on the 1st of Feb. The night will kick off at 6:30pm at Einstein Kultur with drinks and pizza, talks from Daniel and Andrew on microservices and effective testing will then follow from 7pm.
Join Brett Mack for October’s installment of the London Hashicorp Meetup! The London Hashicorp meetup is back on the 13th of October and will be held at the Holburn Sainsbury office with the usual beers and pizza on offer! Agenda: 6.30pm – Arrive, beers socialising 7pm – Talk 1 – Brett Mack, Consultant @ OpenCredo […]
September 15, 2016 | Cassandra
Cassandra isn’t a relational database management system, but it has some features that make it look a bit like one. Chief among these is CQL, a query language with an SQL-like syntax. CQL isn’t a bad thing in itself – in fact it’s very convenient – but it can be misleading since it gives developers the illusion that they are working with a familiar data model, when things are really very different under the hood.
August 26, 2016 | Cassandra
At OpenCredo we have been working with Cassandra since 2012 and we are big fans of both open source Apache Cassandra and the capabilities of DataStax Enterprise. Over the years we have collected a great deal of experience throughout the company on how to deliver the benefits of Cassandra in real world projects and have also seen some common pitfalls that businesses have fallen into.
Join us for the Celebration of Kubernetes birthday! This time round for the Kubernetes London meetup we will be celebrating their 1st birthday, and we are excited to announce that our Lead Consultant Bart Spaans will be speaking. The meetup will be hosted at Playtech’s office in London borough of Camden, on the 11th of August. […]
We are back with the 4th installment of the London Hashicorp Meetup with Hotels.com providing the venue, beers, and pizza! Kicking off at the usual time of 6.30pm, this time round, we have talks from Senior Applications Engineer, Sammy Conway-Rahman from hotels.com and Steve Wade, Technical Consultant at Steven Wade Consulting.
June 15, 2016 | Software Consultancy
It’s as simple as that – and as a consultant, it’s a problem I see all the time. Testing is always focused on functional testing. Non-functional testing, by comparison, is treated like a second class citizen. This means that functional requirements get refined, and non-functional requirements are ignored until the very end.
HashiConf is the chance to share and gain knowledge about delivering applications at scale! This year we are happy to announce that OpenCredo is sponsoring the HashiConf EU 2016, with our Lead Consultant Nicki Watt also presenting! Bringing together the most passionate HashiCorp users in Amsterdam, the conference will run consecutively over three full days from the 13th […]
Many of our clients are currently implementing applications using a ‘microservice’-based architecture. Increasingly we are hearing from organisations that are part way through a migration to microservices, and they want our help with validating and improving their current solution. These ‘microservices checkup’ projects have revealed some interesting patterns, and because we have experience of working in a wide-range of industries (and also have ‘fresh eyes’ when looking at a project), we are often able to work alongside teams to make significant improvements and create a strategic roadmap for future improvements.
OpenCredo is excited to announce the new London HashiCorp User Group, with founder and CEO of HashiCorp, Mitchell Hashimoto presenting at the first meetup!
January 30, 2016 | Microservices
The OpenCredo team will be presenting two sessions on our recent learnings with implementing microservices at the OOP Conference, which will be running from the 1st – 5th February. We will also be running a booth, and so if you are interested in learning more about our recent projects, are keen to see if we can help you with your latest technical or organisational challenges, or want to join our team, then stop by and say hello!
Good consulting is, by its nature, an act of collaboration. We recently helped a company with a variety of challenges – some architecture, some coding, some systems, some people, some process (normal consultancy challenges) – unique to this client. During the project, we formalised some things we had thought before, but which had never crystallised – all the work we did was transformative. Whether it’s a code review, process review, DevOps implementation, or outright transformation, the primary goal is the same – improving flow. Flow (sometimes known as throughput) is the movement of raw materials through a system to become finished goods. It’s analogy in the service industry is the movement of customer requirements through to usable solution. And we help improve it.
Join Daniel for a brief introduction to the topic of microservices, and also a tour of the nastiest sins (anti-patterns) he has seen in his journey as a consultant on the 6th of April at BCS London.
December 22, 2015 | Software Consultancy
We announced yesterday that CloudCredo has been acquired by Pivotal. In the longer term this will probably solve one of my challenges that is the need to constantly explain the difference between OpenCredo and CloudCredo, since CloudCredo will eventually be absorbed into Pivotal. Yesterday’s announcement has created significant interest, and so I thought I would try to clear things up with a quick post.
In the rush to embrace DevOps, many organisations seek out tools to help them achieve DevOps nirvana; the magical tools that will unify Development and Operations, stop the infighting, and ensure collaboration. This search for tools to solve problems exists in many domains, but seems particularly prevalent in IT (it may be real, or a reflection of my exposure to IT). The temptation to embrace new tools as a panacea is high, because the problems in IT seem so pervasive and persistent.
The London Hashicorp User Group Meetup is back for its second event! Join Paul Stack; Former Development Lead at OpenTable, for his talk on ‘The Quest for Infrastructure Management 2.0′ and Jon Bensons; Hashicorps’ Solutions Engineer, talk ‘Using Nomad and Consul to deploy and discover applications.’
November 25, 2015 | Microservices
In May a 1.0 release of RAML (RESTful API Markup Language) has been announced delivering a few much welcome additions in the RAML 1.0 specification. This major release marks an important milestone in the evolution of RAML and indicates the team behind the specification is confident this release delivers the comprehensive set of tools for developing RESTful APIs. I’ve been using RAML 0.8 for several months now and have enjoyed the simplicity and productivity it offers for designing and documenting APIs. I must say I’m quite pleased with the changes introduced in the new release and would like to review those I consider particularly useful.
News | November 25, 2015
It was once again a privilege to present at the annual ‘muCon 2015‘ microservices conference held in London (at the shiny new Skillsmatter CodeNode venue). Based on feedback fro talks I gave earlier in the year, I presented a completely new version of my ‘The Business Behind Microservices‘ talk, which focuses on the organisational and people side of implementing a microservice-based application.
October 31, 2015 | Microservices
Over the past few weeks I’ve been writing an OpenCredo blog series on the topic of “Building a Microservice Development Ecosystem”, but my JavaOne talk of the same title crept up on me before I managed to finish the remaining posts. I’m still planning to finish the full blog series, but in the meantime I thought it would be beneficial to share the video and slides associated with the talk, alongside some of my related thinking. I’ve been fortunate to work on several interesting microservice projects at OpenCredo, and we’re always keen to share our knowledge or offer advice, and so please do get in touch if we can help you or your organisation.
Last week Steve Poole and I were once again back at the always informative JAX London conference talking about DevOps and the Cloud. This presentation built upon our previous DevOps talk that was presented last year, and focused on the experiences that Steve and I had encountered over the last year (the slides for our 2014 “Moving to a DevOps” mode talk can be found on SlideShare, and the video on Parleys).
September 24, 2015 | Software Consultancy
You’ve implemented a change in how things work, and people aren’t happy. You spent time investigating the problem, and putting serious thought into what the issue was, and you’ve put a fix in place that you were sure people would be happy with. They aren’t. Why not?
September 24, 2015 | Microservices
Unless you’ve been living under a (COBOL-based) rock for the last few years, you will have no doubt heard of the emerging trend of microservices. This approach to developing ‘loosely coupled service-oriented architecture with bounded contexts’ has captured the hearts and minds of many developers. The promise of easier enforcement of good architectural and design principles, such as encapsulation and interface segregation, combined with the availability to experiment with different languages and platforms for each service, is a (developer) match made in heaven.
September 20, 2015 | Microservices
Over the past five years I have worked within several projects that used a ‘microservice’-based architecture, and one constant issue I have encountered is the absence of standardised patterns for local development and ‘off the shelf’ development tooling that support this. When working with monoliths we have become quite adept at streamlining the development, build, test and deploy cycles. Development tooling to help with these processes is also readily available (and often integrated with our IDEs). For example, many platforms provide ‘hot reloading’ for viewing the effects of code changes in near-real time, automated execution of tests, regular local feedback from continuous integration servers, and tooling to enable the creation of a local environment that mimics the production stack.
September 18, 2015 | Microservices
We’re pleased to begin our series of OpenCredo webinars with “The Business Behind Microservices”, which takes a look at the some of the business and organisational challenges that come along with the decision to implement microservices.
September 13, 2015 | DevOps
Last week I was privileged to be able to present my “Thinking Fast and Slow with Software Development” talk at the inaugural Software Circus conference in Amsterdam. The conference was amazing, and I’ll write more about this later, but in this post I was keen to share the presentation slides and the thinking behind this talk…
August 12, 2015 | Microservices
Over the last few months one of my main projects at OpenCredo has involved creating various microservices which are interacted with via REST. We’ve been working with a relatively rich domain model, which in turn has presented a lot of challenges in how to design our various resources. This blog post aims to summarise various techniques and practices which I’ve found helpful in overcoming these challenges.
Why OpenCredo partnered with Google
Recently OpenCredo chose to partner with Google in order to share knowledge and resources around the Google Cloud Platform offerings. Our clients come in many shapes and sizes, but typically all of them realise three disruptive truths of the modern IT industry: the (economic) value of cloud; the competitive advantage of continuous delivery; and the potential of hypothesis and data-driven product development to increase innovation (as popularised by the Lean Startup / Lean Enterprise motto of ‘build, measure, learn’).
News | January 28, 2015