Category Archives for Docker Kubernetes

Certified Kubernetes Administrator | Day 1 & Day 2 Training Concepts

K8s Architecture, Components, Installation, and Networking Kubernetes is an open-source conainer tool for orchestration. It can automate the processes such as deploying, and managing containerized applications. Kubernetes follows a very straightforward architecture with flexibility. It consists of master nodes and worker nodes. Master communicates with the worker node with the help of API servers. Kubernetes […]

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Certified Kubernetes Administrator | Day 1 & Day 2 Training Concepts

K8s Architecture, Components, Installation, and Networking Kubernetes is an open-source conainer tool for orchestration. It can automate the processes such as deploying, and managing containerized applications. Kubernetes follows a very straightforward architecture with flexibility. It consists of master nodes and worker nodes. Master communicates with the worker node with the help of API servers. Kubernetes […]

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[Recap] Day 2 [CKS]: Kubernetes RBAC, Service Account and Network Policy [Certified Kubernetes Security Specialist]

certified Kubernetes Security Specialist | Day 2 Review and Q/A: Kubernetes RBAC, Service Account and Network Policy [Certified Kubernetes Security Specialist]Role-based access control (RBAC)  ➪ is a way of regulating access to Kubernetes object resources based on certain roles of individual users within any organization.Service accounts  ➪ are used to provide an identity to the […]

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[Recap] Day 1: Kubernetes Components, Architecture, and Installation [Certified Kubernetes Security Specialist] [CKS]

Certified Kubernetes Security Specialist | Day 1 Review and Q/A: Kubernetes Components, Architecture, and Installation [Certified Kubernetes Security Specialist] [CKS] Kubernetes Security ➪ uses an approach to divide the security strategies applied in Cloud-native systems into four different layers known as 4Cs of Cloud-native Security. These 4Cs are as follow: • Code • Container • […]

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Docker Swarm: A Complete Guide for Beginners

🐳 Docker ➤ Docker is an open-source tool used to automate application deployment in the form of lightweight containers. ⚙️ Docker Swarm ➤ Docker Swarm is a small-scale management tool that provides a good orchestration system for Dockerized applications. 🤓 Features of Docker Swarm 1️⃣ Simple and Fast 2️⃣ Decentralized access 3️⃣ High security 4️⃣ […]

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𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 1.22: 𝐖𝐡𝐚𝐭 𝐢𝐬 𝐭𝐡𝐞 𝐧𝐞𝐰𝐥𝐲 𝐚𝐝𝐝𝐞𝐝 𝐚𝐧𝐝 𝐝𝐞𝐩𝐫𝐞𝐜𝐚𝐭𝐞𝐝?

☸️ Kubernetes ► Kubernetes, also known as K8s, is an open-source system for automating deployment, scaling, and managing containerized applications. ⤴️ Kubernetes 1.22 ►The second release of 2021! This release consists of: 5️⃣3️⃣ enhancements 1️⃣3️⃣ enhancements have graduated to stable 2️⃣4️⃣ enhancements are moving to beta 1️⃣6️⃣ enhancements are entering alpha 3️⃣ features have been […]

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𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐋𝐢𝐯𝐞 𝐓𝐮𝐭𝐨𝐫𝐢𝐚𝐥 𝐟𝐨𝐫 𝐁𝐞𝐠𝐢𝐧𝐧𝐞𝐫𝐬 𝐚𝐧𝐝 𝐂𝐊𝐀, 𝐂𝐊𝐀𝐃, 𝐚𝐧𝐝 𝐂𝐊𝐒 𝐀𝐬𝐩𝐢𝐫𝐚𝐧𝐭𝐬

☸️ 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 ► Kubernetes is an open-source container orchestration platform that automates applications’ deployment, management, and scaling. 📜 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 ►The 3 Kubernetes Certifications [CKA/CKAD/CKS] are the most sought out certifications because of the credibility ✅ and undisputed value 📈 in the job market. 💼 👷‍♀️𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐨𝐫 (𝐂𝐊𝐀) ► The Certified Kubernetes Administrator (CKA) […]

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𝐃𝐨𝐜𝐤𝐞𝐫 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐀𝐬𝐬𝐨𝐜𝐢𝐚𝐭𝐞 𝐓𝐮𝐭𝐨𝐫𝐢𝐚𝐥 𝐋𝐢𝐯𝐞 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠

💠 Docker is a containerization platform that is used to create containers. We can deploy our 📲 application into the Container through an image. A Docker image is a read-only template containing instructions for building a container running on the Docker platform. Didn’t it seem interesting already? 🤔 Check out this post – https://k21academy.com/docker22 that […]

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Kubectl_ErrorRefused

[Solved] The connection to the server localhost:8080 was refused – did you specify the right host or port?

If you are facing this issue we are here to help… Check out our blog at – https://k21academy.com/kubernetes53 and resolve your queries. If you are an Admin, Architect, or Tester, then attend the FREE Class for Docker & Kubernetes Administrator (CKA) 👉 K21academy.com/kubernetes02 FREE Telegram group at https://t.me/k21dockerkubernetes

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Kubernetes Health Check with Readiness Probe and LivenessProbe

🦠In a recent study, scientists have concluded that the Coronavirus also infects the Kubernetes pods 🤯 🩺 That is why we need to do Health Check for Kubernetes! Of course, I was kidding; but a health check or probe is indeed a method of checking the health of a Kubernetes pod. 🩹 What is Health […]

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