Article recommendation
Read Pod Network in One Article
This article aims to help readers understand the concepts and principles of Pod networks. Pod networking is an important concept in Kubernetes, which describes how to deploy and run applications in a cluster.
Pod network refers to a technology that uses container network plug-ins (such as Calico, Flannel, etc.) to create and manage container network connections. In this technique, containers are connected to other containers in the cluster through network plug-ins, enabling the deployment and operation of applications.
Regardless of the approach used, Pod networking provides a simple and efficient way to deploy and run container applications. At the same time, it also provides developers with better flexibility and scalability, because they can deploy and run applications in different clusters, and can easily scale up or down the size of the application.
Kubernetes vs Docker Swarm
This article compares Kubernetes and Docker Swarm, two container orchestration tools. Overall, the article mentions some advantages and disadvantages of both tools and how to use them to solve practical problems.
Specifically, the article mentions the following comparisons:
- Performance and scalability: Kubernetes has better performance and scalability than Docker Swarm, because Kubernetes supports cluster-level services and load balancing, while Docker Swarm requires manual configuration and deployment.
- Management and maintenance: Kubernetes is easier to manage and maintain than Docker Swarm, because Kubernetes provides some built-in functions, such as horizontal expansion, failure recovery, and configuration management, while Docker Swarm requires manual configuration.
- Security: Both Kubernetes and Docker Swarm provide some security features, such as authentication and authorization, container isolation, and traffic control, etc., but Kubernetes may be more powerful and flexible in this regard.
- Integration: Kubernetes can be integrated with many other tools, such as DNS, RPC, and timers, while Docker Swarm requires manual configuration and integration.
The article also provides some concrete examples of using these tools, such as using Kubernetes to create large-scale containerized applications, using Docker Swarm to build and deploy containerized applications, and so on.
Through this article, readers can understand some advantages and disadvantages of two container orchestration tools, Kubernetes and Docker Swarm, and how they can be used to solve practical problems.
How to configure Alertmanager and integrate it with Prometheus
This article describes how to use Alertmanager to configure and integrate with Prometheus to send alerts when metrics are abnormal. Specifically, the article describes the following steps:
- Installing Alertmanager: Introduces how to install Alertmanager using a Docker container and configure the configuration file of Alertmanager.
- Configure Prometheus to collect and display alerts from Alertmanager: Describes how to configure alert collectors and filters in Prometheus to collect alerts from Alertmanager and display alerts in Prometheus.
- Sending Alerts: Describes how to specify the address, email address, and other settings for alerts to be sent through the Alertmanager configuration file, and how to view the history of alerts in Prometheus.
- Integrating Prometheus and Grafana: Describes how to use Grafana to visualize metrics collected by Prometheus and how to create alerting graphs in Grafana.
Through the above steps, readers can understand how to use Alertmanager to configure and integrate with Prometheus to send alerts when indicators are abnormal, and to visualize the history and details of alerts.
Migrate Lambda to Kubernetes Jobs
This article introduces the practice of migrating Lambda to Kubernetes Jobs, which is mainly divided into the following parts:
- What are Lambda and Kubernetes Jobs?
- Why migrate Lambda to Kubernetes Jobs?
- How to migrate Lambda to Kubernetes Jobs?
This article details the steps required to migrate Lambda to Kubernetes Jobs and provides helpful examples and advice.
Open source project recommendation
Flatcar Container Linux
Flatcar Container Linux is a fully open source, minimal footprint, secure by default and always up-to-date Linux distribution for running containers at scale.
Kubegres
Kubegres is a Kubernetes operator that allows deploying a cluster of one or more PostgreSql instances and manages database replication, failover and backup.
Kubeshark
Kubeshark is an API traffic analyzer for Kubernetes that provides real-time protocol-level visibility into the Kubernetes internal network, capturing and monitoring all traffic and payloads in and out of containers, containers, nodes, and clusters.
PostgreSQL Operator
PostgreSQL Operator is a tool designed to automate the deployment, configuration, and management of PostgreSQL databases in Kubernetes clusters. It provides an easy and efficient way to deploy and manage PostgreSQL databases on Kubernetes.
Cloud Native Dynamics
Amazon GuardDuty adds EKS runtime monitoring and RDS protection
Amazon GuardDuty adds Amazon EKS Runtime Monitoring and RDS Protection for Amazon Aurora. EKS Runtime Monitoring can detect runtime threats from more than 30 different security findings. RDS Protection adds support for analyzing and monitoring Aurora database access activity.
Amazon EKS runtime monitoring uses fully managed EKS plugins to provide visibility into container runtime activity such as file access, process execution, and network connections. It identifies potentially compromised containers in an EKS cluster. This includes detecting attempts to escalate privileges from the container to the underlying EC2 host.
Cilium released v1.14.0-snapshot.1
Cilium is an open source container networking framework based on Kubernetes, which provides a simple, reliable, and scalable way to build and manage container networks. The snapshot.1 version released this time is an early preview version of Cilium 1.14.0 version, which has the following main features:
- Improved VPN functionality: Cilium VPN functionality has been improved and now supports more flexible VPN configurations and better performance.
- Support for Docker container networking: Cilium now supports Docker container networking, allowing users to build and manage Docker container networks in an easier way.
- Improved CLI tools: The Cilium CLI tools have been improved and now support better command-line interaction and better error handling.
- Other Improvements: Several other improvements have been implemented in Cilium, including better network diagnostics, improved logging, and enhanced security.
It should be noted that this version is a snapshot version, which means that it is not the final version and may still have defects and errors. Therefore, careful evaluation and testing is required before using this version. At the same time, it is recommended that users back up data before official use, and pay attention to version compatibility issues.
Essential Kubernetes Gauges open source
The Nobl9 staff has open-sourced Essential Kubernetes Gauges, a standardized set of pre-built SLOs for measuring the reliability of Kubernetes clusters.
Essential Kubernetes Gauges (EKG) provides a standardized set of pre-built SLOs for measuring the reliability of Kubernetes clusters. You can think of these SLOs as a check engine light that tells you when your EKS cluster is behaving abnormally, with a history of when the cluster was behaving as expected and when it wasn't. SLOs allow you to set tunable targets for the reliability aspects of your cluster.
This article is published by OpenWrite, a multi-post platform for blogging !