🌟 Persist your data with PV and PVC 🌟

Hello Cloudees ☁️!
🚀 Mastering Persistent Storage in Kubernetes! ☁️
🔹 Ever lost important data when a pod restarted?
🔹 Want to ensure your applications have reliable storage in K8s?

Let’s break it down! ⬇️
Before getting into the main topic let's understand the terms.

🆚 𝐸𝑝ℎ𝑒𝑚𝑒𝑟𝑎𝑙 𝑣𝑠 𝑃𝑒𝑟𝑠𝑖𝑠𝑡𝑒𝑛𝑡 𝑆𝑡𝑜𝑟𝑎𝑔𝑒:
✅ 𝑬𝒑𝒉𝒆𝒎𝒆𝒓𝒂𝒍 𝒔𝒕𝒐𝒓𝒂𝒈𝒆: Data is tied to the lifecycle of the pod, when the pod is deleted/restart the data is lost. 📝 Example: emptyDir()
✅𝑷𝒆𝒓𝒔𝒊𝒔𝒕𝒆𝒏𝒕 𝒔𝒕𝒐𝒓𝒂𝒈𝒆: Data is independent irrespective of the pod lifecycle. It can be reused by other pods. 📝 Example: PVs, cloud storage, NFS

In Persistent storage concept we have "Persistent Volume"
❓What is Persistent Volume?
✅ It is a piece of storage that has been provisioned(allocated) and made available to use by the pods.
📌 Fixed storage (static/dynamic provisioning)
📌 Flexible storage (thin provisioning)

🟠𝑳𝒊𝒇𝒆𝑪𝒚𝒄𝒍𝒆 𝒐𝒇 𝑷𝑽:
1️⃣ 𝘗𝘳𝘰𝘷𝘪𝘴𝘪𝘰𝘯𝘪𝘯𝘨: Created manually (admin) or dynamically (StorageClass). Three types of provisioning ( Static, Dynamic, Thin)
2️⃣ 𝘉𝘪𝘯𝘥𝘪𝘯𝘨: PVs bind to Persistent Volume Claims (PVCs) when storage requirements match.
3️⃣ 𝘜𝘴𝘢𝘨𝘦: Pods access storage via PVCs.
4️⃣ 𝘙𝘦𝘤𝘭𝘢𝘪𝘮𝘪𝘯𝘨: When a PVC is deleted, the PV follows its Reclaim Policy (Retain, Delete, Recycle (deprecated)).

✅ 𝑷𝒓𝒐𝒔 & ❌ 𝑪𝒐𝒏𝒔 𝒐𝒇 𝑼𝒔𝒊𝒏𝒈 𝑷𝑽𝒔
✅ 𝑷𝒓𝒐𝒔:
✔️ Data will be still available even if the pod deleted.
✔️ PV's can be backed by various types of storage ( Local Disks, network-attached storage/cloud based storage), providing the flexibility in choosing the right storage solution for our needs.
❌ 𝑪𝒐𝒏𝒔:
⚠️ Setup & management complexity, especially with different storage backends.
⚠️ Cross-environment PV management requires monitoring & resource management.

🎯 𝑵𝒆𝒙𝒕 𝑻𝒐𝒑𝒊𝒄: Migrating data between Persistent Volumes!
💡 𝐻𝑜𝑤 𝑎𝑟𝑒 𝑦𝑜𝑢 𝑢𝑠𝑖𝑛𝑔 𝑃𝑒𝑟𝑠𝑖𝑠𝑡𝑒𝑛𝑡 𝑆𝑡𝑜𝑟𝑎𝑔𝑒 𝑖𝑛 𝐾𝑢𝑏𝑒𝑟𝑛𝑒𝑡𝑒𝑠? 𝐷𝑟𝑜𝑝 𝑦𝑜𝑢𝑟 𝑡ℎ𝑜𝑢𝑔ℎ𝑡𝑠 𝑖𝑛 𝑡ℎ𝑒 𝑐𝑜𝑚𝑚𝑒𝑛𝑡𝑠! 👇