Deploy Prometheus / Grafana Monitoring Stack on Kubernetes
- Step 1: Clone kube-prometheus project Use git command to clone kube-prometheus project to your local system: ...
- Step 2: Create monitoring namespace, CustomResourceDefinitions & operator pod Create a namespace and required CustomResourceDefinitions: ...
- Step 3: Deploy Prometheus Monitoring Stack on Kubernetes ...
- Step 4: Access Prometheus, Grafana, and Alertmanager dashboards ...
Full Answer
What is the best way to manage data on Prometheus upgrades?
The Prometheus image uses a volume to store the actual metrics. For production deployments it is highly recommended to use a named volume to ease managing the data on Prometheus upgrades. To provide your own configuration, there are several options. Here are two examples. Bind-mount your prometheus.yml from the host by running:
How do I get Started with Prometheus?
Getting started. This guide is a "Hello World"-style tutorial which shows how to install, configure, and use Prometheus in a simple example setup. You will download and run Prometheus locally, configure it to scrape itself and an example application, and then work with queries, rules, and graphs to make use of the collected time series data.
What port does Prometheus Run on?
This starts Prometheus with a sample configuration and exposes it on port 9090. The Prometheus image uses a volume to store the actual metrics. For production deployments it is highly recommended to use a named volume to ease managing the data on Prometheus upgrades. To provide your own configuration, there are several options.
How do I access the Prometheus server url in Cloud9?
In order to access the Prometheus server URL, we are going to use the kubectl port-forward command to access the application. In Cloud9, run: kubectl port-forward -n prometheus deploy/prometheus-server 8080:9090 In your Cloud9 environment, click Tools / Preview / Preview Running Application . Scroll to the end of the URL and append:
How do I deploy Prometheus operator?
The Prometheus Operator installs a set of Kubernetes Custom Resources that simplify Prometheus deployment and configuration....Once you have this ready to go, you can begin.Step 1 — Install Prometheus Operator. ... Step 2 — Configure Prometheus RBAC Permissions. ... Step 3 — Deploy Prometheus.
How do I start Prometheus in Kubernetes?
How to Setup Prometheus Monitoring On Kubernetes ClusterAbout Prometheus. ... Prometheus Architecture. ... Prometheus Monitoring Setup on Kubernetes. ... Connect to the Kubernetes Cluster. ... Prometheus Kubernetes Manifest Files. ... Create a Namespace & ClusterRole. ... Create a Config Map To Externalize Prometheus Configurations.More items...
How do you deploy Prometheus and Grafana?
Deploy Prometheus / Grafana Monitoring Stack on KubernetesStep 1: Clone kube-prometheus project. ... Step 2: Create monitoring namespace, CustomResourceDefinitions & operator pod. ... Step 3: Deploy Prometheus Monitoring Stack on Kubernetes. ... Step 4: Access Prometheus, Grafana, and Alertmanager dashboards.
How do I deploy Prometheus on AWS?
If you don't already have an AWS account, sign up at https://aws.amazon.com, and sign into your account.Prepare an existing EKS cluster.Launch the Quick Start. Before you create the stack, choose the AWS Region from the top toolbar. Deploy into a new VPC and new Amazon EKS cluster. ... Test the deployment.
How do I know if Prometheus is installed?
To verify the Prometheus server installation, open your browser and navigate to http://localhost:9090. You should see the Prometheus interface. Click on Status and then Targets. Under State, you should see your machines listed as UP.
Why we use Prometheus for Kubernetes?
Kubernetes is a complex system with many moving parts. Effective monitoring of such a dynamic system requires tools with advanced capabilities. Prometheus is one such application. Prometheus is an open-source monitoring solution that can collect metrics from a number of target systems.
What is the difference between Grafana and Prometheus?
Prometheus collects rich metrics and provides a powerful querying language; Grafana transforms metrics into meaningful visualizations. Both are compatible with many, if not most, data source types. In fact, it is very common for DevOps teams to run Grafana on top of Prometheus.
Where is Prometheus data stored?
Disk usage Prometheus stores its on-disk time series data under the directory specified by the flag storage. local. path . The default path is ./data (relative to the working directory), which is good to try something out quickly but most likely not what you want for actual operations.
What are the 4 metric types Prometheus support?
There are four primary Prometheus metric types to query for via PromQL: counters, gauges, histograms, and summaries. These metric types fulfill the needs or requirements for most use cases, and are found in Prometheus' official client libraries: Go, Java, Ruby, and Python.
How do I install Prometheus on EC2?
SetupSet up an Amazon EC2 instance running Amazon Linux.Run a demo application written in Go that exposes a Prometheus endpoint under /metrics using the Prometheus client library.Create an Amazon Prometheus Service (AMP) workspace.Run a Prometheus server to export the application metrics to AMP through the proxy.More items...•
How can I see Prometheus metrics in Grafana?
Click the graph title, then click "Edit". Under the "Metrics" tab, select your Prometheus data source (bottom right). Enter any Prometheus expression into the "Query" field, while using the "Metric" field to lookup metrics via autocompletion.
How do you deploy Prometheus on EKS?
To deploy Prometheus using HelmCreate a Prometheus namespace. ... Deploy Prometheus. ... Verify that all of the pods in the prometheus namespace are in the READY state. ... Use kubectl to port forward the Prometheus console to your local machine. ... Point a web browser to localhost:9090 to view the Prometheus console.More items...
How do I stop and start Prometheus?
As said by @DanielB, you must use your system mechanisms to stop or start a service. Under Linux, sysvinit style, calling /etc/init. d/prometheus stop is the offical, correct way to stop a service. Under Linux, systemd style, the /etc/init.
How do I access Prometheus dashboard?
Grafana supports Prometheus out-of-the-box and you can easily access the premade Prometheus dashboard.Navigate back to the Data Sources section and select Prometheus.Open the Settings drop-down menu.Then click Dashboards.A list of available dashboards appears.More items...•
How do I monitor Kubernetes with Prometheus and Grafana?
Prerequisites.Deploying the Kube-Prometheus Stack Helm Chart.Accessing the Prometheus Instance.Viewing Prometheus Kubernetes Cluster Internal State Metrics.Visualizing a Cluster's Internal State Metric on Prometheus.Accessing then Grafana Dashboard.Interacting with Grafana.Conclusion.
How do I monitor the Kubernetes cluster?
The most straightforward solution to monitor your Kubernetes cluster is by using a combination of Heapster to collect metrics, InfluxDB to store it in a time series database, and Grafana to present and aggregate the collected information. The Heapster GIT project has the files needed to deploy this design.
Using pre-compiled binaries
We provide precompiled binaries for most official Prometheus components. Check out the download section for a list of all available versions.
From source
For building Prometheus components from source, see the Makefile targets in the respective repository.
Using Docker
All Prometheus services are available as Docker images on Quay.io or Docker Hub.
Using configuration management systems
If you prefer using configuration management systems you might be interested in the following third-party contributions:
What is clusterrole in Kubectl?
The ClusterRole’s rules can be applied to groups of kubernetes APIs (which are the same APIs kubectl uses to apply these yaml files) or to non-resource URLs - in this case “/metrics”, the endpoint for scraping Prometheus metrics. The verbs for each rule determine what actions can be taken on those APIs or URLs.
Why is Prometheus commented out?
In the new configMap file the prometheus job has been commented out because we’re going to get the metrics in a different way. Instead, two new jobs have been added in: kubernetes-nodes and kubernetes-pods .
What is the namespace of Kubernetes?
All resources in Kubernetes are launched in a namespace, and if no namespace is specified, then the ‘default’ namespace is used. To give us finer control over our monitoring setup, we’ll follow best practice and create a separate namespace called “monitoring”.
What is a selector in ReplicaSet?
Selector details how the ReplicaSet will know which pods it’s controlling. This is a common way for one resource to target another.
Why use YAML files?
We’ll be using YAML files to create resources since this means we can keep a record of what we’ve done and reuse the files whenever we need to make changes. You can find versions of the files here with space for your own details:
Where do the metrics come from in Prometheus?
The metrics available are all coming from Prometheus itself via that one scrape job in the configuration. We can bring up all the metrics for that job by searching for the label “job” with the value “prometheus”
Where is the replicaset data in a deployment file?
The ReplicaSet data is contained in the first “ spec” section of the file.
What IP address is Grafana using to target Prometheus?
Copy the first IP address 45.79.207.223 as that is the one that will be used by Grafana to target Prometheus.
What is Grafana used for?
You know what Grafana is and know it is used to visualize analytics from a data source
How to log in to localhost 3000?
Go to your localhost:3000 on your machine and log in using ‘admin’ for the username and password.
How to import a dashboard?
Navigate to Dashboards > Manage and select import.
Does compose have a default network?
Compose will also handle setting up a default network for our app. Each container joins that network and is reachable by other containers on that network, and discoverable by them at a hostname identical to the container name.
Can you create a new user with sudo privileges?
Note: Normally you would create a new user with sudo priveledges but for the sake of saving space in this article you can just log in as a root user for now.
How to create a config map in Kubernetes?
Step 1: Create a file called config-map.yaml and copy the file contents from this link –> Prometheus Config File. Step 2: Execute the following command to create the config map in Kubernetes. kubectl create -f config-map.yaml. It creates two files inside the container.
What query language is used in Prometheus?
PromQL: Prometheus comes with PromQL, a very flexible query language that can be used to query the metrics in the Prometheus dashboard. Also, the PromQL query will be used by Prometheus UI and Grafana to visualize metrics.
What API does Prometheus use?
Prometheus uses Kubernetes APIs to read all the available metrics from Nodes, Pods, Deployments, etc. For this reason, we need to create an RBAC policy with read access to required API groups and bind the policy to the monitoring namespace.
What happens if you don't create a Kubernetes namespace?
If you don’t create a dedicated namespace, all the Prometheus kubernetes deployment objects get deployed on the default namespace.
How does Prometheus use metrics?
Metric Collection: Prometheus uses the pull model to retrieve metrics over HTTP. There is an option to push metrics to Prometheus using Pushgateway for use cases where Prometheus cannot Scrape the metrics. One such example is collecting custom metrics from short-lived kubernetes jobs & Cronjobs
What is Prometheus monitoring?
Prometheus is an open-source monitoring framework. It provides out-of-the-box monitoring capabilities for the Kubernetes container orchestration platform. Explaining Prometheus is out of the scope of this article. If you want to know more about Prometheus, You can watch all the Prometheus-related videos from here.
What is alertmanager?
Alertmanager handles all the alerting mechanism for Prometheus metrics. There are many integrations available to reveice alerts from the Alertmanager (Slack, email, API endpoints etc)
Namespace
Configmap
- The next step is to setup the configuration map. A ConfigMapin Kubernetes provides configuration data to all of the pods in a deployment. In this file we can see the apiversion, which is v1 again, the kindwhich is now ConfigMap, and in the metadata we can see the name, “prometheus-config”, and the namespace “monitoring”, which will place this ConfigMap into the …
Roles
- Next, we're going to set up a role to give access to all the Kubernetes resources and a service account to apply the role to, both in the monitoring namespace. Specifically we'll set up a ClusterRole: a normal role only gives access to resources within the samenamespace, and Prometheus will need access to nodes and pods from across the cluster to get all the metrics w…
Deployment
- So now we’re ready! We have a namespace to put everything in, we have the configuration, and we have a default service account with a cluster role bound to it. We’re ready to deploy Prometheus itself. The deployment file contains details for a ReplicaSet, including a PodTemplate to apply to all the pods in the set. The ReplicaSet data is contained ...
Nodeport
- There’s one thing left to do before we can start looking at our metrics in Prometheus. At the moment we don’t have access to Prometheus, since it’s running in a cluster. We can set up a service called a NodePort which will allow access to prometheus via the node IP address. The file is very simple, stating a namespace, a selector so it can apply itself to the correct pods, and the …
Node Exporter and A New Configmap
- Now we need to get some useful metrics about our cluster. we're going to use an application called Node Exporter to get metrics about the cluster node, and then change the Prometheus configmap to include jobs for the nodes and pods in the cluster. we'll be using Kubernetes service discovery to get the endpoints and metadata for these new jobs. Node Exporter is deployed usin…