Ultimate comparison and setup tutorial between GitLab and Jenkins.

This article explores the challenges associated with shadow Kubernetes admins and the benefits of centralizing with the IT department.

Both Kafka and Docker are pretty complex technologies, and it can be difficult to determine where to get started once you’re sure that they’re the right fit for the problem you’re solving. To keep things simple for this tutorial, we’ll create one producer, one consumer, and one Kafka instance.

Kubernetes is not a secure platform. It lacks native tooling to handle most security-related tasks. This article list security principles to secure a cluster.

For those occasions when one storage account just won't do

Learn how to apply Kubernetes zero-trust principles to secure an entire environment, providing zero-trust security for containers.

Modern cloud environments are ever-changing, and so is the nature of cloud computing. The growing cloud assets accompany the attack surface expansion problem for organizations, which unveils the need for visibility of cloud resources. AWS Config addresses that exact demand.

Using CRDs as API.

AWS vs Azure vs GCP - how do these cloud providers compare when it comes to IAM? Read on to find out.

Follow this tutorial to learn how to create a minimal Web API with .NET CLI and Visual Studio 2022 to publish it on Azure Web App and API management.

Let's see how to deploy an ECR image-based Lambda onto the AWS Console.

This article explores the differences, trade-offs, and architectures of JMS message brokers and Kafka deployments.

Your git fairy godmother will test and locate the bugs for you with a swish of her magic wand. All you need to know are the magic words: git bisect.

Connecting to Jira in Python.

Percona Product Manager Sergey Pronin demonstrating how to migrate MongoDB to Kubernetes.

What I really wanted to do was set a breakpoint and examine the state of the objects at runtime.

Netbeans Platform Offshore has received an increased amount of attention given the massive amount of attention placed on the supply chain crisis that has occurred all throughout the world in recent years. Modern ships rely on NetBeans Platform Offshore and similar technologies to help guide them where they need to go. Thus, the world's reliance on Netbeans Platform Offshore could not be more obvious at this time. Better Software Systems Onboard Ships Make Them More Reliable Cargo ships and other naval vessels are very delicate pieces of equipment that can be easily disrupted by a malfunctioning piece of software equipment. If something goes wrong with the Netbeans system onboard, then a ship can be routed in the completely wrong direction from where it was intended to go. Obviously, the world of global commerce simply cannot allow for this to happen, and companies are responding to the need. Software Can Help Maintain Crew Safety Netbeans is being relied upon more than ever for crew safety at this point. After a review of all known marine system models, the Netbeans system was built to incorporate all of the best parts from each system to help promote safe passage and crew safety while on board the ship. At the same time, developers had to ensure that the enhanced security features would not hinder the ship from going where it needed to go. After all, the world of commerce moves faster than ever before these days, and there is no way that slowing the ship too much would be permitted by the companies that own and operate these vessels. They care about their profits and bottom line, and they wouldn't want to give those up too much. Modern ships and rigs have advanced computer systems for dynamic positioning, power generation and distribution, and drilling operations. Software errors in these systems lead to delays and non-productive time, and compromise safety. Marine Cybernetics performs independent testing and verification of computer system software to detect and eliminate such errors and weaknesses using Hardware-In-the-Loop (HIL) testing technology. Centralized Control and Overrides Two important things about the Netbeans system is that it provides both centralized control over the vessel and also allows for human overrides as necessary. If there is ever a situation in which the software program is incorrect in its assumptions or makes an error, humans can jump in and make the necessary corrections to get things right. It is wonderful to see the two things working in tandem, and it provides strong evidence that this is the way forward. Based on our extensive library of marine system models, we build applications and user interfaces for our testers and customers, based on the NetBeans Platform. The modular nature of our simulators and the diversity of test programs and vessel configurations make the NetBeans Platform a natural choice. Coupled with Maven, Hudson and an agile approach to software development, the NetBeans Platform enables us to quickly roll out new applications and adapt to the changing offshore industry. The screenshot above is taken from a Power Plant HIL Simulator, but we also make HIL simulators for Dynamic Positioning, Steering, Propulsion, Thrusters, Drilling Systems, Cranes and other systems. Our database of test programs and procedures is also powered by a NetBeans Platform application. Independently Verified Finally, one more reason to rest easy with the Netbeans system on board is the fact that it has been independently tested and verified. A third-party has been brought in to help ensure that the system is working as designed. That is clearly a very big deal because not every company would be so willing to work with outside auditors to ensure that everything was working as designed, but the makers of Netbeans are perfectly fine with doing exactly that. They want to make sure their systems are the safest and most tested on the planet, and they are not afraid to let another party poke around those systems to discover if this is the case. Continue to check out what Netbeans comes up with next as they are sure to provide the world with very interesting and useful equipment. Could More Useful Onboard Technology Help Supply Chain Issues? Unless you have had your head under a rock for the last several years, you are well aware of the fact that there have been some major supply chain issues that have caused trouble for seaports all throughout the world. Instead of getting things to customers right when they require them, many shipping companies have been woefully behind on getting their shipments to customers as designed. Thus, people are starting to ask if it might be possible to use onboard technology to help get the cargo from ships to where it needs to go much more quickly. Indeed, it does feel like there is some hope that some of the technologies that Netbeans has produced could help prevent some of the hang-ups at ports. This is not to suggest that Netbeans can do it all by itself, but there are plenty of people working on the problem, and it feels like a little extra guidance technology may be exactly what is called for to get the job done. Yes, there are going to need to be even more people hired to keep freight moving where it needs to go, but we cannot forget the fact that there are a lot of people counting on crews to bring their supplies to them in a timely fashion. The best way to reach that goal is to use the most up-to-date technologies in the world to make it happen. Navigation is a must for all shipping concerns, and having the best technologies on board means that one can finally get ships where they need to go. Estimates suggest that literally billions of dollars have been wiped off of the economies of the world because of supply chain issues. The fact that some of this can be remedied by just getting ships where they need to go is a wonderful piece of news for all involved. Tracking Shipping Containers and More Expectations are such that Netbeans may have the ability to track shipping containers and provide other valuable insights into what is going on in the world of shipping. If so, the value that they provide will surely skyrocket. The entire world relies on shipments that are brought to them via the ocean, and any system that can help make that process a bit smoother is going to be lauded as the next great thing when it comes to economic growth and stability. Netbeans is here to help bring that next chapter forward, and we all owe them a debt of gratitude for the work that they are actively doing to help all mankind.

You can put JDev files on NetBeans for brand-new creations.

I'm Stefano Chiappa and I'm from Milan (Italy). I work at Prisma Engineering (http://www.prisma-eng.com/) as Lead Software Engineer of the Simulator User Interface Team. AirMosaic is an application on the NetBeans Platform for controling Prisma's UeSIM, which is a multi mobile simulator. The UeSIM is basically a server with some antennas able to connect to a base station and simulate a population of mobiles doing some basic or complex Test Procedures. These procedures can be "real-world" applications such as HTTP, FTP, Mail, VOIP calls or protocol-dependent procedures such as attachment/detachment to the Core Network. Several mobile technologies are supported: LTE/UMTS/GSM. The images below are taken from LTE version. Why VoIP calls are more popular than ever The AirMosaic technology that is used within the Netbeans system is something that is generating a lot of buzz and helping companies get work done that they must surely have believed would take much longer than it has. One area that AirMosaic has come into play very rapidly is in the realm of VoIP calls. VoIP stands for "Voice over Internet Provider", and this refers to the way that many calls are received in the modern office environment these days. A few reasons why office managers prefer VoIP over other options is because: Prices are lower - Generally speaking, the cost of VoIP calls are lower in total. You don't have to pay some of the additional costs that come with international calls or other types of calls when using a VoIP system. Instead, you receive a lower overall cost because the cost is usually a standard and flat rate. VoIP meshes well with existing and emerging technology - VoIP works well with both existing technologies as well as those that are emerging on the scene at this time. Thus, office managers and anyone else who is involved in the phone purchasing process for an office will often find VoIP causes them the fewest headaches as far as combining it with what they already have or what is soon coming down the line. Excellent call quality - It is hard to beat the call quality that you receive with a VoIP system. The calls are crisper, clearer, and provide the consistency that every office is looking for. You really can't go wrong with a VoIP system like this. In the first step a population of mobiles is created. It is possible to edit a huge amount of parameters related to the mobile device hardware and the user subscription related to the SIM. The following image shows the editing of this mobile database, which is performed inside a NetBeans editor and properties window (click to enlarge the images): Once a Mobile population has been created, it is possible to create a scenario (navigator window) where is described what a single or group of mobiles will do. The available test procedures are collected and grouped inside a navigator window on the left bottom side, where you can see some of the available tests: When the scenario has been created, it is possible run it through the UeSIM hardware. This is displayed in the next image: On the upper left side of the image, AirMosaic displays, through some gears, the currently running test. We used a central editor window to display some counters of the running simulation. It is possible to choose the displayed counters by checking a node of the tree on the left side of the window. On the lower side of the application, there is an output window that displays the sequence of events happening during the simulation. Once a scenario has been completed, the scenario window, on the application's top left, shows a green circle to indicate that the test has been completed successfully, as you can see in the next image: Some plots can be drawn for each counter available. It is possible to put different counters on the same plot or on different plots. This is displayed in the next image: At the end of a test, it is possible to generate a report, save it as a PDF, or send it by mail automatically, as shown in image below: This is basically what the application does. Several features are still in development, of course! AirMosaic Runs Simulations For Phone Testing Purposes Did you know that it is important to test the phone systems within your office on a regular basis? You should do so not only because you need to make sure the phones are working so that customers can call in, but also to make sure there aren't any fraudsters trying to take advantage of a vulnerable phone system. Believe it or not, there are fraud cases in which the criminals will attack a phone system set up by a company for their own malicious purposes. Fraudulent calls can ring up huge expenses for companies that are difficult to repay. Obviously, this is not an ideal situation for anyone, and it is best to avoid such scenarios by testing the phones on a regular basis to make sure that there isn't anyone in the system who shouldn't be there. AirMosaic can run sweeping tests of phone systems to try to detect problems like this. What AirMosaic will do is run their sweeping tests to detect any anomalies within the system and alert you to what is going on. They will even let you know if there are phone calls within the system being placed by people who work for you that shouldn't be placed. It would be incredibly challenging to run all of these tests by yourself, and that is why so many are using AirMosaic instead. They see the value of adding a little extra security to their phone systems, and they realize that the only true way to do so is to run a program like this that can detect any problems. Data is Generated That Can be Scanned Finally, AirMosaic produces a list of data on the phones that it has scanned which you can view on your own time. Look over every piece of information that the system found in order to figure out what is going on with the phones that it has identified as perhaps having a problem. AirMosaic is very good at narrowing down the list for you so you don't waste your time trying to go through all of this information on your own. Instead, you rely on AirMosaic to help you out, and then you simply review the data that it discovered in order to get a better idea of what may be happening within your system. By isolating the phones that appear to have a problem, the AirMosaic system makes it easier for you to see which specific phones you will look at and why they may be having some issues. Users sincerely appreciate this because it means that they can finally receive the data that they require to send in their team of IT experts to fix the problem. It takes a little bit of time and effort, but it is worth the trouble when you identify the problem and get people involved who can help. Save your company from the risk of being vulnerable to attack over the phone system. Use AirMosaic to run some tests today.

Released back in 2012, Neo4j 1.8.M03 introduced the RELATE clause, a two-step dance of MATCH or CREATE. Also, new Transaction support in the shell lets you call for a do-over in case you misstep. RELATE, a Subgraph Match-Maker A RELATE clause looks a lot like a MATCH clause — the ASCII-art of graph traversals — but behaves differently when there isn't a satisfying subgraph. When there is no match, RELATE will create the needed Relationships and even intervening Nodes. RELATE ensures that the subgraph exists. So, I just fetched myself a coffee. Let's say I want to keep track of how often I visit 3 Bees Coffee. I could carve notches on my desk, but I've already ruined one Ikea desk that way. Being graph-minded, I immediately realize that I'll be curious about deeper questions regarding all the places I visit. I will, of course, evolve a graph mini-app. Neo4j 1.8.M01 introduced the CREATE clause, so I'll create me and the coffee shop: CREATE me = {name:"Andreas"}, `3bees` = {name: "3 Bees Coffee"} (Note the back ticks around 3bees because the term starts with a number) To record that I have visited 3 Bees Coffee, I could add a relationship at the same time: CREATE me = {name:"Andreas"}, `3bees` = {name: "3 Bees Coffee"}, me-[:VISITS]->`3bees` Of course, I will be re-visiting coffee shops more often than going to newly opened shops. I already know about me, and will usually know about the coffee shop, so what I really want to do is just create the Relationship. START me=node(1), coffee=node(2) CREATE me-[:VISITS]-coffee Easy as pie. Mmm pie. Create a record for me, create a record for a shop, and whenever I visit a shop, create a Relationship. Because I want to keep track of the frequency of my visits, I suddenly have a problem: I don't want to create a Relationship every time, but get one if it exists and just update a property on it. Cypher is declarative. There is no spoon, I mean 'IF'. So we turn to our friendly match-making RELATE clause: START me=node(1), coffee=node(2) RELATE me-[v:VISITS]-coffee return v That'll match the VISITS if it exists, or create one if it doesn't. To update the visits, I can convert the RETURN into a WITH to tack on a SET clause like so: START me=node(1), coffee=node(2) RELATE me-[v:VISITS]-coffee WITH v SET v.visits=(v.visits +1) RETURN v OK, one last detail to adjust: the classic initial condition problem. If RELATE happened to create a new Relationship, it won't yet have a visits Property. We'll use COALESCE to ignore v.visits if it is null, then add 1: START me=node(1), coffee=node(3) RELATE me-[v:VISITS]-coffee WITH v SET v.visits=(coalesce(v.visits?,0)+1) return v Ah, now I have even more motivation to take coffee breaks. The RELATE clause is powerful fun. Get yourself a cup of coffee, then sit down to peruse the Neo4j Manual section on Cypher RELATE to learn more. And, check on my coffee consumption in the Neo4j Live console, where you can play around with RELATE. Transactional Shell Prior to this release, every query issued in the Neo4j shell (whether command-line or in Webadmin) created a transaction when needed. Now, you have control over transactions with some new shell commands: begin transaction, commit, and rollback. These let you practice your new Cypher dance moves without worrying about falling on your face and taking your database down with you. As usual, look to the Neo4j Manual for the details. Now that we’ve looked back in time, let’s see what Neo4j can do better than SQL. SQL is an impressive query language but there are things that Cypher handles so much better. Whereas SQL started as a single table query language, support was added later for geospatial data and for XML and JSON as well. XML is primarily used for displaying documents on web pages. It uses customized markup languages that are user-defined. JSON reads data from web servers in order to display it online. When dealing with relational databases which are built on tables, JOINs make the connections. So how does this relate to Neo4j? Well, Neo4j is designed to handle product recommendation engines as well as supply management and personalizing customer experience. And Cypher’s graph query language allows you to extract data from graphs. It’s essentially SQL for graphs. Cypher is easy to use and understand. It’s designed for graphs. It borrows from other languages such as Python and is a powerful, full-featured modern language perfect for data analysts and subject matter experts who need to extract meaningful data by reading and writing queries themselves if need be. You don’t need to be a developer to get the benefits from Cypher. A feature of graph databases is that their searches are schema-free. Or at least optional. By not having a fixed schema you can develop the relationships, add attribute types and develop your data as you go. This provides extreme levels of flexibility when developing applications. SQL Path Patterns Query Using path patterns which is an advanced feature, you can have a product that points to a list of categories. With a deep hierarchy, one which you don’t know the depth of yet, you can insert a “*” to find arbitrary linked relationships right to the root directory. But you can limit it to a set number of relationships as well as categories. This is all easily achieved in Cypher but requires linking together a chain of queries in SQL. Each level must be spelled out in the query to the limit that is needed. A cumbersome and time-intensive process, especially when you don’t necessarily know how many categories you’re going to end up with anyway. Find All Cycles in a Directed Graph If you wish to find loops, where a loop leads back to the same person or thing over again, path patterns will determine the outcome. Using MATCH path = (p:Person)-[*3..10]-(p), one can look for 5 hops ending with the person you started with. Not only is the data available in a table but it can be generated visually. And that in essence is what you get with Cypher; a powerful much more user-friendly tool that is purpose-built to provide graph queries in a format that the user can manipulate to show relationships without being bogged down in endless hours of programming and validation. Combine Reads and Writes If you’re familiar with SQL, you need to support Reads and Writes by using insert statements or insert from select. Unfortunately, that’s where it ends. Cypher does the heavy lifting and combines reads and writes in a single query. So, you can update the database while simultaneously fetching data. The benefits of Cypher over SQL don’t end there but I’m sure you get the point. Relate Yourself Neo4j 1.8.M03 is available for immediate download in the usual places. Get it now: Download from neo4j.org Bump the versions in your maven pom.xml Provision on heroku with: heroku addons:add neo4j --neo4j-version 1.8.M03 Want to practice Cypher with fellow Graphistas? Join us at a meetup somewhere in the world, or propose a new location and we'll look into visiting your area to buy you a cup of coffee. The content of this article was originally written by Andreas Kolleger over at the Neo4j blog.