It allows users to push time series data to the Prometheus targets. Pushgateway can support temporary jobs.Alertmanager alerts users via email and other communication channels, such as Slack.It is where the actual monitoring job occurs. Prometheus Server is the core component in the Prometheus architecture.The diagram below shows Prometheus’ components and how Prometheus works: Image Source: Prometheus Docs We will create a dashboard for visualizing the metrics collected from the Prometheus data source. Most DevOps professionals use Grafana and Prometheus to create a powerful time-series database with data visualization dashboards. You can also import those that Grafana already offers and customize them to meet your needs. You have the option of creating your dashboards from scratch. Besides Prometheus, Grafana supports several other data sources such as: Grafana enables you to query, visualize and comprehend your metrics regardless of the data source. When you connect it to supported data sources like Prometheus, it offers: Grafana is a multi-platform, open-source online application for analytics and interactive visualization. Reports on potential performance bottlenecks.The metrics that Prometheus collects from the Kubernetes cluster are: It acts as a data source for other data visualization libraries like Grafana. It has an out-of-box capability for monitoring the container orchestration platform. It collects and stores the metrics from the platform as time series data. It provides monitoring and real-time alerting functionality for container orchestration platforms like Kubernetes. Prometheus is an open-source DevOps tool. NOTE: You may have to pay to use many cloud-based Kubernetes services. Amazon Elastic Kubernetes Service (EKS).You can also use other managed cloud-based Kubernetes services like: Set up a Kubernetes Cluster: you’ll install Prometheus and Grafana on your Kubernetes cluster.You can read the Kubernetes official documentation or download Semaphore’s free ebook: CI/CD with Docker and Kubernetes which requires no prior knowledge of Docker or Kubernetes. Have basic knowledge of Kubernetes: ensure that you have some knowledge of Kubernetes.To install the Kubectl tool on your local machine, follow the official Kubectl documentation guide. Install Kubectl: this allows you to communicate with your Kubernetes cluster.Install Docker: to install Docker into your machine, check out the Docker official documentation.To follow along with this guide, you’ll need to: The two most popular container orchestration tools are Docker Swarm and Kubernetes. As mentioned, Prometheus and Grafana are popular tools for monitoring container orchestration platforms.
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