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Thursday, April 26, 2018

Installing & running Prometheus

Prometheus is a powerful , open source monitoring system that collect metrics from your services and stores them in a time series database. It provides a query language , data model and when combined with visualization tools like grafana it provides more details. Prometheus by default only exports metrics about it self like the...
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Node_exporter in grafana

In order to export node exporter dashboard in grafana , follow the below steps Click the “+” icon on the left in gradana to see an Import option. Click on the import and in the text box under “grafana.com Dashboard” , past the “1860” . this value belong to the node exporter dashboard which is available in the grafana sites to import Once...
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Node_exporter with prometheus

Node_exporter is a hardware and machine metric collection and exporter to prometheus. The node exporter allows you to measure various machine resources such as memory, disk and CPU utilization. In this article we will see how we can configure node_exporter and export the machine and hardware metrics to prometheus Create a user node_exporter with no home            useradd --no-create-home...
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Integrate Prometheus with Grafana

1. Make sure your prometheus is running 2. Make sure your grafana is running 3. Login into grafana using the “admin/admin” credentials. 4. Click on the Configuration -> Data source               5. In the Add data source , fill the details like below           Make sure...
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Grafana Installation

Grafana is a leading graph and dashboard builder for visualizing time series infrastructure and application metrics. This also provides a elegant way to create,explore and share dashboards ,data with other teams. In this article we will see how we can install grafana server Installing grafana is quite straight ward. All we have to...
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Wednesday, April 25, 2018

Kubernetes - Core Components

Kubernetes Components - As we already know k8 is a combination of multiple components. The description of the Kubernetes components below breaks them into these three groupings. The components that run on master nodes, the components that run on all nodes and the components that run scheduled onto the cluster. The major components...
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Kubernetes - Worker Node Configuration

                                          Set the Hostname for the worker node as ‘k8s-master’   hostnamectl set-hostname ‘k8s-node’ Disable Selinux setenforce 0 sed -i --follow-symlinks 's/SELINUX=enforcing/SELINUX=disabled/g'...
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Kubernetes - Master Node Configuration

                                           We will be creating a 2 node kubernetes cluster in which we have a master and a node.The Machine details include 10.131.175.138    -  Master Node  172.16.202.96     ...
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