Docker Con 2022's biggest highlight was the launch of the Docker Desktop for Linux Users. For Windows and Mac users, this setup was already available for obvious reasons. But for Ubuntu desktop users like me, the only way to work was to use the Docker CLI for calling the backend containerd run time engine. Hence, … Continue reading Docker Desktop for Linux – Ubuntu 22.04 + Docker Desktop 4.8.0
CompTIA Security+ Sy-601 Certification [Part 2]
For Section 1 of the Security+ Sy-601 exam - Threats, Attacks, and Vulnerabilities, we will be covering various topics ranging from Social Engineering techniques, multiple forms of attacks, threat intelligence, vulnerabilities, and pen-testing. 1. Threats Threats to any computer system may involve, though are not limited to, the use of various malicious software or Malwares … Continue reading CompTIA Security+ Sy-601 Certification [Part 2]
Infra as Code for OpenStack with Ansible-Git Workflow: Part 2
In our previous blog, we worked on the instantiation of a new Virtual machine on the OpenStack cloud using Ansible. In this blog, we will be covering the second scenario, where the trigger to perform LCM on the newly created VM shall arrive from GitLab via Webhook. For a recap, refer to the previous blog, … Continue reading Infra as Code for OpenStack with Ansible-Git Workflow: Part 2
Docker Image Scan with SYFT
As we move toward the Zero-Trust model for Infosecurity, concern over application-level security deployed on containers is raised by the security experts. Recently, a vulnerability CVE-2022-0811 identified in the CRI container runtime engine has turned this fact into reality. For those who are not aware, as per CrowdStrike, when invoked, an attacker could escape from … Continue reading Docker Image Scan with SYFT
Self-Signed Certificate for GitLab 13.10.3
GitLab can be installed on the private cloud with access to internal applications for code repositories. GitLab application uses an in-build Nginx web service with the option to use either HTTP or HTTPS, based on internal info-security requirements. To use HTTPS, we need to provide the Gitlab application with an updated SSL certificate. We can … Continue reading Self-Signed Certificate for GitLab 13.10.3
Minikube Error – apiserver certificate: failed to load certificate: the certificate has expired
I recently faced one error in my old single host minikube deployment on CentOS. While starting my minikube cluster, I was repeatedly getting below error, [certs] Using existing ca certificate authority stderr: W0419 03:27:58.522598 568 configset.go:348] WARNING: kubeadm cannot validate component configs for API groups [kubelet.config.k8s.io kubeproxy.config.k8s.io] [WARNING IsDockerSystemdCheck]: detected "cgroupfs" as the Docker cgroup … Continue reading Minikube Error – apiserver certificate: failed to load certificate: the certificate has expired
Infra as Code for OpenStack with Ansible-Git Workflow: Part 1
Ansible provides a powerful configuration and workflow management tool, which can easily be applied to perform Infrastructure as Code use cases on OpenStack. For my setup, I am using Ansible 2.9.11 in sync with Gitlab for the code repository and source control for playbooks. For this solution, I will proceed with two steps, Scenario 1: … Continue reading Infra as Code for OpenStack with Ansible-Git Workflow: Part 1
Operations, Security and Reliabilty Framework for Cloud Architecture
In my previous blog, I mentioned about system design framework for Cloud architecture. Now, in today's zero trust and highly resilient requirement of clients, with least overhead on operational expenditure, only system design factors are not enough. Architects need to build additional strategies with security,operations and reliability in mind. So, lets finalize our design for … Continue reading Operations, Security and Reliabilty Framework for Cloud Architecture
System Design Framework for Cloud Architecture
Photo by Pixabay on Pexels.com Cloud is not a new technology in market. Enterprise are using it for in house applications on private IT datacenters since beginning of 21st century. Driven by virtualization, Carrier grade hardwares with top of industry specs are providing shared resources to run multiple workloads on virtual machines. While, monolith applications … Continue reading System Design Framework for Cloud Architecture
[Part 5] Python3: Basics for Beginners – Dictionary & Modules
In Part 4 for our python3 basics for beginners blog, we read about different type of loops and their use. In this blog, we extend this further by introducing concept of dictionary in python. 1. Dictionary Dictionary in python can be use to input from one source and itself acts as a source for processing … Continue reading [Part 5] Python3: Basics for Beginners – Dictionary & Modules
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