1️⃣ Check what’s consuming space

docker system df

This gives a summary of disk usage by Docker objects.

2️⃣ Remove inactive images

docker image prune

This deletes unused images that are not referenced by any container.

3️⃣ Clear Docker build cache

docker builder prune

This cleans up build cache data.

4️⃣ List dangling (unused and untagged) images

sudo docker images -f dangling=true

Inspect what’s dangling before removal.

5️⃣ Enable Docker cache cleanup (optional but recommended)

If your environment supports it, enable Docker’s Clean Cache option so Docker automatically manages disk space efficiently.

✅ Quick summary:

• docker system df: Check disk usage
• docker image prune: Remove inactive images
• docker builder prune: Clear build cache
• docker images -f dangling=true: List dangling images
• Enable Clean Cache option