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Volumes & Storage

tmpfs Mounts

In-Memory Storage
💡 tmpfs, mount, EK, "STICKY, NOTE" jaisa, hai — TEMPORARY, INFORMATION, ke, liye, PERFECT, hai, LEKIN, JAISE, hi, TUM, KAMRA, (container) chhodte, ho, STICKY, NOTE, GAAYAB, ho, jaata hai, kyunki, WO, KABHI, PERMANENT, JAGAH, (disk) par, SAVE, hua, hi, NAHI, THA.

tmpfs, mount, DATA, ko, HOST, machine, ki, MEMORY, (RAM) mein, hi, STORE, karta hai — DISK, PAR, KABHI, WRITE, nahi, hota. Container, STOP, hote, hi, tmpfs, ka, SAARA, DATA, permanently, CHALA, jaata, hai.

YE, SENSITIVE, TEMPORARY, DATA, (jaise, session, tokens, ya, temporary, credentials) ke, liye, IDEAL, hai — kyunki, DATA, KABHI, DISK, PAR, PERSIST, hi, nahi, hota, ISLIYE, SECURITY, ke, LIHAAZ, se, BEHTAR, hai, aur, MEMORY, SPEED, ki, wajah, se, FAST, bhi, hota hai.

# tmpfs mount create karo (Linux hosts par hi supported)
docker run -d --tmpfs /app/cache:size=100m myapp

# Docker Compose mein tmpfs
services:
  app:
    tmpfs:
      - /app/cache
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tmpfs, mount, EK, "STICKY, NOTE" jaisa, hai — TEMPORARY, INFORMATION, ke, liye, PERFECT, hai, LEKIN, JAISE, hi, TUM, KAMRA, (container) chhodte, ho, STICKY, NOTE, GAAYAB, ho, jaata hai, kyunki, WO, KABHI, PERMANENT, JAGAH, (disk) par, SAVE, hua, hi, NAHI, THA.
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⚡ Quick Recap
  • tmpfs = data RAM mein store hota hai, disk par kabhi nahi
  • Container stop hote hi tmpfs ka saara data chala jaata hai
  • Sensitive temporary data (session tokens) ke liye ideal choice
Is page mein (2 subtopics)

"--tmpfs" flag, mein, "size" option, se, tmpfs, mount, ki, MAXIMUM, SIZE, LIMIT, ki, ja, sakti, hai — YE, IMPORTANT, hai, kyunki, tmpfs, HOST, ki, RAM, use, karta hai aur, bina, LIMIT, ke, POORI, MEMORY, EXHAUST, ho, sakti, hai.

docker run --tmpfs /app/tmp:size=64m,mode=1777 myapp

Docker, Compose, mein, "tmpfs" key, SIMPLE, LIST, FORMAT, ya, DETAILED, OBJECT, FORMAT, (size, mode, options, ke, saath) mein, DEFINE, ki, ja, sakti, hai.

services:
  app:
    image: myapp
    tmpfs:
      - /app/tmp:size=64m