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Terraform is the de facto tool if you work with infrastructure as code (IaC). Regardless of the resource provider, it allows your organization to work with all of them simultaneously. One unquestionable aspect is Terraform security, since any configuration error can affect the entire infrastructure. In this article we want to explain the benefits of using Terraform, and provide guidance for using
Let’s dig deeper into this list of Kubectl plugins that we strongly feel will be very useful for anyone, especially security engineers. Stern plugin RBAC-tool Cilium Plugin Kube Policy Advisor Kubectl-ssm-secret Kubelogin Kubectl-whisper-secret Kubectl-capture Kubectl-trace Access-matrix Rolesum Cert-manager np-viewer ksniff Inspektor-Gadget Kubernetes, by design, is incredibly customizable. Kuber
As detection methodologies advance, attackers are increasingly using more complex techniques such as fileless malware. In the following article, we will see how to detect and mitigate this threat. Containers provide a number of security features that are not simply available on a normal host. One of those is the ability to make the container’s root filesystem read-only. By making the file system u
There will be cases like the serverless compute engine ECS Fargate, Google Cloud Run, etc., where some of these pieces are out of our control, so we work on a shared responsibility model. The provider is responsible for keeping the base pieces working and secured And you can focus on the upper layers. Prevention: 8 steps for shift left security Before your application inside a container is execute
Kubernetes 1.21 is about to be released, and it comes packed with novelties! Where do we begin? This release brings 50 enhancements, up from 43 in Kubernetes 1.20 and 34 in Kubernetes 1.19. Of those 50 enhancements, 15 are graduating to Stable, 14 are existing features that keep improving, and a whopping 19 are completely new. It’s great to see old features, that have been around as long as 1.4, f
Learn how to prevent security issues and optimize containerized applications by applying a quick set of Dockerfile best practices in your image builds. If you are familiar with containerized applications and microservices, you might have realized that your services might be micro; but detecting vulnerabilities, investigating security issues, and reporting and fixing them after the deployment is ma
Kubernetes 1.20 is about to be released, and it comes packed with novelties! Where do we begin? As we highlighted in the last release, enhancements now have to move forward to stability or being deprecated. As a result, alpha features that have been around since the early times of Kubernetes, like CronJobs and Kubelet CRI support, are now getting the attention they deserve. Another noteworthy fact
Kubernetes 1.19 is about to be released! And it comes packed with novelties. However, there’s something beyond the features that grabbed our attention this time. Where do we begin? Kubernetes as a project is maturing, support has been increased from nine to 12 months, and there’s a new protocol in place to ensure a steady progress on feature development. Also, many of its new features are meant to
Don’t miss out on these 12 image scanning best practices, whether you are starting to run containers and Kubernetes in production, or want to embed more security into your current DevOps workflow. One of the main challenges your teams face is how to manage container security risk without slowing down application delivery. A way to address this early is by adopting a Secure DevOps workflow. Secure
A step by step cookbook on best practices for alerting on Kubernetes platform and orchestration, including PromQL alerts examples. If you are new to Kubernetes and monitoring, we recommend that you first read Monitoring Kubernetes in production, in which we cover monitoring fundamentals and open-source tools. Interested in Kubernetes monitoring? Check these other articles with advanced topics: · t
Kubernetes 1.18 is about to be released! After the small release that was 1.17, 1.18 comes strong and packed with novelties. Where do we begin? There are new features, like the OIDC discovery for the API server and the increased support for Windows nodes, that will have a big impact on the community. We are also happy to see how some features that have been on Alpha state for too long are now bein
The fourth annual Sysdig Container Security and Usage Report looks at how global Sysdig customers of all sizes and industries are using and securing container environments. By examining how and when organizations are implementing security in the development lifecycle, we have been able to uncover some interesting data points in this year’s report. For example, we can see that 74% of organizations
Introduction When working with Kubernetes, Out of Memory (OOM) errors and CPU throttling are the main headaches of resource handling in cloud applications. Why is that? CPU and Memory requirements in cloud applications are ever more important, since they are tied directly to your cloud costs. With limits and requests, you can configure how your pods should allocate memory and CPU resources in orde
When working with containers in Kubernetes, it’s important to know what are the resources involved and how they are needed. Some processes will require more CPU or memory than others. Some are critical and should never be starved. Knowing that, we should configure our containers and Pods properly in order to get the best of both. In this article, we will see: Introduction to Kubernetes Limits and
Golden Signals are a reduced set of metrics that offer a wide view of a service from a user or consumer perspective: Latency, Traffic, Errors and Saturation. By focusing on these, you can be quicker at detecting potential problems that might be directly affecting the behavior of the application. Google introduced the term “Golden Signals” to refer to the essential metrics that you need to measure
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Amazon has just announced on AWS re:Invent two new services relevant on the container ecosystem: Fargate and EKS (Elastic Kubernetes Service). With the information we have at this time, let’s explain and compare them against running Kubernetes on AWS. Google and Azure both provide managed Kubernetes clusters since a few months now. Docker announced Kubernetes support in their commercial offering j
Are you looking at how to improve your Kubernetes security? We have put together here the best practices for implementing run-time security on the kube-system components (kubelet, apiserver, scheduler, kubedns, etc) deployed in Docker containers. One of the main sources of concern for companies approaching the container paradigm has traditionally been security. It’s a radical infrastructure switch
This article covers the use case of creating a custom Kubernetes scheduler and implements an example using monitoring metrics coming from Sysdig: system, network, services, statsd, JMX or Prometheus metrics. UPDATE: There is a new and more complete implementation of the custom Kubernetes scheduler using Golang. The default Kubernetes scheduler does a fantastic job for most typical workloads. Start
Csysdig is an open source, htop-like interactive troubleshooting tool for Linux that is designed for monitoring and debugging containers. It understands Docker, Rkt and LXC containers and underlying processes and threads together with their resources usage (CPU, Memory, net and file IO, etc) – basically everything you can capture from system calls. It can also map container activity to related Kub
Introduction One of the main advantages of embracing containers is “lightweight virtualization”. Since each container is just a thin layer around the containerized processes, The user gains enormous efficiencies, for example by increasing the container density per host, or by spinning containers up and down at a very fast pace. However, as the troubleshooting story in the article will show, this l
Etcd is the backend store for all the Kubernetes cluster related data. It is undoubtedly a key component in the Kubernetes infrastructure. Monitoring etcd properly is of vital importance because if you fail to observe the Kubernetes etcd, you’ll probably fail to prevent issues too. In that case, you can get into some serious trouble. If the etcd quorum is lost, and the etcd consequently cluster fa
Our 2018 Docker Usage Report provides an inside look at shifting container trends as revealed by a point-in-time snapshot of real-world container usage as reported by the Sysdig Monitor and Sysdig Secure cloud service. The quick summary: Organizations are getting more bang for their hardware buck by packing in 50% more containers per host, Docker still rules the roost but brand name container runt
In this article I will walk you through a problem we recently experienced with AWS Elastic Load Balancer (ELB). After quickly describing the architecture of our application and putting the issue in the proper context, I’ll jump right into the troubleshooting process. Troubleshooting this issue was definitely interesting as I used a variety of good tools (including wireshark and sysdig) to achieve
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