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infrastructure/storage/backup-recovery/SKILL.md

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+---
+name: backup-recovery
+description: Implement backup and recovery strategies. Configure rsync, Restic, and cloud backups. Use when designing data protection solutions.
+license: MIT
+metadata:
+  author: devops-skills
+  version: "1.0"
+---
+
+# Backup and Recovery
+
+Implement comprehensive backup strategies.
+
+## rsync Backups
+
+```bash
+# Basic sync
+rsync -avz --delete /source/ /backup/
+
+# Remote backup
+rsync -avz -e ssh /data/ user@backup:/backups/
+
+# Incremental with hard links
+rsync -avz --delete --link-dest=/backup/latest /source/ /backup/$(date +%Y%m%d)/
+```
+
+## Restic Backup
+
+```bash
+# Initialize repository
+restic init --repo /backups
+
+# Backup
+restic backup /data --repo /backups
+
+# List snapshots
+restic snapshots --repo /backups
+
+# Restore
+restic restore latest --target /restore --repo /backups
+
+# Prune old backups
+restic forget --keep-daily 7 --keep-weekly 4 --keep-monthly 12 --prune
+```
+
+## Cloud Backup
+
+```bash
+# AWS S3 with restic
+restic init --repo s3:s3.amazonaws.com/bucket-name
+restic backup /data --repo s3:s3.amazonaws.com/bucket-name
+
+# GCS
+restic init --repo gs:bucket-name:/
+```
+
+## Best Practices
+
+- Follow 3-2-1 rule
+- Test recovery regularly
+- Encrypt backups
+- Document procedures
+- Monitor backup success

infrastructure/storage/block-storage/SKILL.md

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+---
+name: block-storage
+description: Manage block storage volumes and LVM. Configure cloud block storage and local disks. Use when managing disk storage.
+license: MIT
+metadata:
+  author: devops-skills
+  version: "1.0"
+---
+
+# Block Storage
+
+Manage block storage volumes and LVM.
+
+## LVM Management
+
+```bash
+# Create physical volume
+pvcreate /dev/sdb
+
+# Create volume group
+vgcreate data_vg /dev/sdb
+
+# Create logical volume
+lvcreate -L 50G -n app_lv data_vg
+
+# Format and mount
+mkfs.ext4 /dev/data_vg/app_lv
+mount /dev/data_vg/app_lv /data
+
+# Extend volume
+lvextend -L +10G /dev/data_vg/app_lv
+resize2fs /dev/data_vg/app_lv
+```
+
+## AWS EBS
+
+```bash
+# Create volume
+aws ec2 create-volume \
+  --availability-zone us-east-1a \
+  --size 100 \
+  --volume-type gp3
+
+# Attach to instance
+aws ec2 attach-volume \
+  --volume-id vol-xxx \
+  --instance-id i-xxx \
+  --device /dev/xvdf
+```
+
+## Best Practices
+
+- Use LVM for flexibility
+- Implement RAID for redundancy
+- Monitor disk I/O
+- Regular disk health checks

infrastructure/storage/nfs-storage/SKILL.md

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+---
+name: nfs-storage
+description: Configure NFS servers and clients. Implement network file sharing for Linux systems. Use when setting up shared storage.
+license: MIT
+metadata:
+  author: devops-skills
+  version: "1.0"
+---
+
+# NFS Storage
+
+Configure NFS for network file sharing.
+
+## Server Configuration
+
+```bash
+# Install
+apt install nfs-kernel-server
+
+# Configure exports
+# /etc/exports
+/data 10.0.0.0/24(rw,sync,no_subtree_check,no_root_squash)
+/shared *(ro,sync,no_subtree_check)
+
+# Apply changes
+exportfs -ra
+
+# Start service
+systemctl enable --now nfs-kernel-server
+```
+
+## Client Configuration
+
+```bash
+# Install
+apt install nfs-common
+
+# Mount
+mount -t nfs server:/data /mnt/data
+
+# /etc/fstab
+server:/data /mnt/data nfs defaults,_netdev 0 0
+```
+
+## Kubernetes NFS
+
+```yaml
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: nfs-pv
+spec:
+  capacity:
+    storage: 100Gi
+  accessModes:
+    - ReadWriteMany
+  nfs:
+    server: nfs-server.example.com
+    path: /data
+```
+
+## Best Practices
+
+- Use proper export options
+- Implement firewall rules
+- Monitor NFS performance
+- Use NFSv4 for security

infrastructure/storage/object-storage/SKILL.md

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+---
+name: object-storage
+description: Configure object storage with S3, GCS, and MinIO. Implement lifecycle policies and access controls. Use when managing object storage.
+license: MIT
+metadata:
+  author: devops-skills
+  version: "1.0"
+---
+
+# Object Storage
+
+Configure and manage object storage solutions.
+
+## AWS S3
+
+```bash
+# Create bucket
+aws s3 mb s3://my-bucket
+
+# Upload/Download
+aws s3 cp file.txt s3://my-bucket/
+aws s3 sync ./local s3://my-bucket/remote
+
+# Configure lifecycle
+aws s3api put-bucket-lifecycle-configuration \
+  --bucket my-bucket \
+  --lifecycle-configuration file://lifecycle.json
+```
+
+## MinIO (Self-Hosted)
+
+```bash
+# Deploy
+docker run -d \
+  -p 9000:9000 -p 9001:9001 \
+  -e MINIO_ROOT_USER=admin \
+  -e MINIO_ROOT_PASSWORD=password \
+  -v /data:/data \
+  minio/minio server /data --console-address ":9001"
+
+# Configure mc client
+mc alias set myminio http://localhost:9000 admin password
+mc mb myminio/mybucket
+```
+
+## Best Practices
+
+- Enable versioning
+- Implement lifecycle policies
+- Use server-side encryption
+- Configure access logging
+- Implement bucket policies