Here just trying to summarize the list of software that I need to install on new PC or Laptop. I hope, I listed all necessary. Find the list here…
Blog
#installing #kubernetes on Three #Centos9 #virtualmachines using #ansible in #2022
Here, I demonstrated how #kubernetes can be #installed using #ansible.
This is a raw version. So you may fast forward some of the steps.
I would like to thanks University of Tartu HPC Center (https://www.youtube.com/channel/UCi_viPyHPL_rytr_bwBk55A) for the computing resources.
Few more urls:
https://etais.ee/
https://mc.cs.ut.ee/
My personal webpage
https://kodu.ut.ee/~dehury/
https://www.chinmayadehury.in/
Some more blogs:
https://www.chinmayadehury.in/blog/
src: https://blogchinmaya.blogspot.com/2022/06/installing-kubernetes-on-three-centos9.html
Sending emails using Apache Nifi
Apache Nifi, an awesome open-source tool from the Apache Software Foundation for implementation of data routing, transformation, and system mediation logic. For the purpose of smooth handling of data, this tool provides a set of processor, each designed for a dedicated task. In this post, we will see how one can send email to others using some processors provided by Apache Nifi. Follow for more detailed steps….
Securing Nifi with firewalld
In our previous post, we have learned how to secure Apache Nifi with Google’s OAuth2. In that post we saw, how user can be authenticated via Google’s OAuth client ID.
In this post, we will see how the outside user can be blocked permanently from accessing Apache Nifi’s UI. Here outside user means, the user who is accessing UI from different machine. Follow for more detailed steps….
Integrating Apache Nifi with Azure Storage
Apache Nifi, a nice tool for handling data with data pipeline approach. On the other hand, Azure Blob storage is Microsoft’s object storage solution for the cloud, which is optimized for storing massive amounts of unstructured data. Unstructured data is data that doesn’t adhere to a particular data model or definition, such as text or binary data. In this post, we will see how to use Apache Nifi to handle the files (uploading, downloading, and deleting) in Azure blob storage. Check out this for detailed steps…
Securing NiFi with Google’s OAuth 2.0 provider
Apache Nifi, a nice tool for handling data with data pipeline approach. But by default, this is not secure anyone with the IP and port can access your data data and potentially damage the data. In this post, we will see how to secure Apache Nifi with Google’s OAuth2.0 provider. Check out this for detailed steps…
Ansible-Playbook Example3: Generate multiple files at specific time interval
In the previous post, we have seen how to generate multiple files using with_sequence and loop features.
Here, we will introduce the delay functionality in the loop feature. This will give a pause after every iteration. So, each file will be created at specific time interval. The official document on loop control can be found here. Download the .yml file directly if you don’t want to go through the discussion.
Ansible-Playbook Example2: Loop, with_sequence
Loop and with_sequence allows the commands or the instructions to be executed iteratively. However, I find the syntax bit different from other programming language. Probably this is due to YAML structure. Anyways, lets see few examples and see how to use loop and with_sequence. You can find the official documentation on loop here and on with_sequence here. The list of examples are as follows:
Ansible-Playbook Example1: Ping remote machine
Two ways to test the connection with remote servers.
- One is to write the playbook and execute
- Other is directly passing the ping command as an argument to ansible command
Ansible: Installation and Configuration
Ansible is an open-source software provisioning, configuration management, and application deployment tool. It runs on many Unix-like systems, and can configure both Unix-like systems as well as Microsoft Windows. Before proceeding for the installation, it is necessary to get yourself comfortable with basic knowledge.
Ansible Wikipedia: https://en.wikipedia.org/wiki/Ansible_(software)
Official Documentation: https://docs.ansible.com/
Click here to proceed for quick guied on Installation and configuration