Asset Registry Inventory

Every registered learning asset, grouped by domain and type.

This is a maintainer view

For browsing content, use the Content Hub instead. This page lists what is registered in assets.yaml, which is a subset of all content.

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Linux

Topic Packs

Asset	Level	Time
/proc Filesystem	L2	3h
Advanced Bash for Ops	L1	5h
Binary and Floats	L1	2h
Cron & Job Scheduling	L1	4h
DNF Package Manager	L2	3h
Debian & Ubuntu Ecosystem	L1	6h
Disk & Storage Ops	L1	5h
Environment Variables	L1	2h
Inodes	L1	2h
Kernel Troubleshooting	L3	6h
LPIC / LFCS Exam Preparation	L2	30h
Linux Boot Process	L1	3h
Linux Data Hoarding	L2	4h
Linux Distribution Comparison	L1	4h
Linux Kernel Tuning	L2	4h
Linux Logging	L1	4h
Linux Memory Management	L1	4h
Linux Ops	L0	5h
Linux Ops Storage	L1	2h
Linux Ops Systemd	L1	2h
Linux Performance Tuning	L2	7h
Linux Signals & Process Control	L1	3h
Linux Text Processing	L1	3h
Linux Users & Permissions	L1	4h
Mounts Filesystems	L1	2h
Package Management	L1	2h
Pipes & Redirection	L1	3h
Process Management	L1	4h
SSH Deep Dive	L1	4h
Terminal Internals	L1	2h
cgroups & Linux Namespaces	L2	4h
eBPF & Modern Linux Observability	L3	5h
iptables & nftables	L1	4h
mergerfs	L2	3h
perf Profiling	L2	2h
rsync	L1	3h
strace	L1	2h
systemctl & journalctl Deep Dive	L1	4h
tar & Compression	L1	2h
tmux & screen	L1	2h

Exercise Sets

Asset	Level	Time
Bash Exercises (Quest Ladder) (CLI)	L0	8h

Runbooks

Asset	Level	Time
Runbook: Disk Full	L1	15m
Runbook: High CPU (Runaway Process)	L1	15m
Runbook: OOM Killer Activated	L1	15m
Runbook: Systemd Service Crash Loop	L1	15m
Runbook: Zombie Processes Accumulating	L2	15m

Scenarios

Asset	Level	Time
Interview: Linux Server Slow	L1	15m

Assessments

Asset	Level	Time
Skillcheck: Bash	L0	30m
Skillcheck: Linux Fundamentals	L0	30m

Drills

Asset	Level	Time
Linux Ops Drills	L0	30m

References

Asset	Level	Time
Track: Foundations	L0	20h

Deep Dives

Asset	Level	Time
Deep Dive: Linux Boot Sequence	L2	45m
Deep Dive: Linux Filesystem Internals	L2	45m
Deep Dive: Linux Memory Management	L2	45m
Deep Dive: Linux Network Packet Flow	L2	45m
Deep Dive: Linux Performance Debugging	L2	45m
Deep Dive: Linux Process Scheduler	L3	45m
Deep Dive: Systemd Architecture	L2	45m
Deep Dive: Systemd Service Design Debugging and Hardening	L2	45m
Deep Dive: Systemd Timers Journald Cgroups and Resource Control	L2	45m
Deep Dive: Systemd Units Dependencies and Ordering	L2	45m
Deep Dive: eBPF Explained	L3	45m

Case Studys

Asset	Level	Time
Case Study: IPTables Blocking Unexpected	L2	30m
Case Study: Inode Exhaustion	L1	30m
Case Study: Kernel Soft Lockup	L2	30m
Case Study: OOM Killer Events	L2	30m
Case Study: Runaway Logs Fill Disk	L1	30m
Case Study: SELinux Denying Service	L1	30m
Case Study: Stuck NFS Mount	L2	30m
Case Study: Systemd Service Flapping	L1	30m
Case Study: Time Sync Skew Breaks App	L2	30m
Case Study: Zombie Processes Accumulating	L1	30m

---

Networking

Topic Packs

Asset	Level	Time
ARP	L1	2h
BGP EVPN / VXLAN	L2	5h
Cisco Fundamentals for DevOps	L1	4h
DHCP & IP Address Management	L1	4h
DNS Deep Dive	L1	4h
DNS Operations	L2	4h
DNSSEC & DNS Security	L2	4h
Email Infrastructure	L1	3h
Firewalls	L1	2h
HAProxy & Nginx for Ops	L2	4h
HTTP Protocol	L0	3h
LACP	L1	2h
MTU	L1	2h
Mellanox Switches	L2	4h
NAT	L1	2h
Network Automation	L2	5h
Networking Deep Dive	L1	6h
Networking Troubleshooting	L1	5h
Routing	L1	2h
STP (Spanning Tree)	L1	2h
Subnetting & IP Addressing	L1	2h
TCP/IP Deep Dive	L2	5h
Tailscale & Zero Trust Networking	L2	3h
VLANs	L1	2h
VPN & Tunneling	L2	5h
Wireshark & Packet Analysis	L2	4h
gRPC & Protocol Buffers	L2	3h

Runbooks

Asset	Level	Time
Runbook: DNS Resolution Failure	L1	15m
Runbook: Load Balancer Health Check Failure	L2	15m
Runbook: MTU Mismatch	L2	15m
Runbook: Network Partition (Split Brain / Partial Connectivity)	L2	20m
Runbook: TLS Certificate Expiry	L2	15m

Scenarios

Asset	Level	Time
Scenario: Asymmetric Routing	L2	20m
Scenario: DNS Looks Fine but App Fails	L2	20m
Scenario: Duplex Mismatch	L1	20m
Scenario: MTU Blackhole	L2	20m
Scenario: VLAN Trunk Mismatch	L2	20m

Assessments

Asset	Level	Time
Skillcheck: Networking Fundamentals	L1	30m

Drills

Asset	Level	Time
Networking Drills	L1	30m

Deep Dives

Asset	Level	Time
Deep Dive: AWS VPC Internals	L2	45m
Deep Dive: TCP/IP Deep Dive	L2	45m
Deep Dive: TLS Handshake	L2	45m

Case Studys

Asset	Level	Time
Case Study: ARP Flux Duplicate IP	L2	30m
Case Study: Asymmetric Routing One Direction	L2	30m
Case Study: BGP Peer Flapping	L2	30m
Case Study: DHCP Relay Broken	L1	30m
Case Study: DNS Resolution Slow	L1	30m
Case Study: DNS Split Horizon Confusion	L2	30m
Case Study: Duplex Mismatch Symptoms	L1	30m
Case Study: Firewall Shadow Rule	L2	30m
Case Study: Jumbo Frames Partial	L2	30m
Case Study: LACP Mismatch One Link Hot	L2	30m
Case Study: MTU Blackhole TLS Stalls	L2	30m
Case Study: Multicast Not Crossing Router	L2	30m
Case Study: NAT Exhaustion Intermittent	L2	30m
Case Study: Network Loop Broadcast Storm	L2	30m
Case Study: OSPF Stuck In Exstart	L2	30m
Case Study: Proxy ARP Causing Issues	L2	30m
Case Study: SSL Cert Chain Incomplete	L1	30m
Case Study: Source Routing Policy Miss	L2	30m
Case Study: TCP RST After Idle	L2	30m
Case Study: VLAN Trunk Mistag	L1	30m

---

Datacenter & Hardware

Topic Packs

Asset	Level	Time
Bare-Metal Provisioning	L2	5h
Datacenter & Server Hardware	L1	6h
Dell PowerEdge Servers	L1	2h
Firmware	L1	2h
IPMI and ipmitool	L1	3h
Packer	L1	2h
Power	L1	2h
Redfish API	L1	2h
Server Hardware	L1	2h
Storage Operations	L2	5h
VMware	L2	4h
Virtualization	L2	5h

Scenarios

Asset	Level	Time
Interview: Server Won't POST	L2	15m
Scenario: NIC Flapping / LACP Mismatch	L2	20m
Scenario: OOB Unreachable but Host Responds	L2	20m
Scenario: RAID Array Degraded	L1	20m
Scenario: Server Won't Boot After Update	L1	20m
Scenario: Thermal Throttling	L1	20m

Assessments

Asset	Level	Time
Skillcheck: Datacenter	L1	30m

Drills

Asset	Level	Time
Datacenter Drills	L1	30m

Deep Dives

Asset	Level	Time
Deep Dive: Dell Linux PowerEdge	L2	45m
Deep Dive: RAID and Storage Internals	L2	45m

Case Studys

Asset	Level	Time
Case Study: BIOS Settings Reset After CMOS	L1	30m
Case Study: BMC Clock Skew Cert Failure	L2	30m
Case Study: Bonding Failover Not Working	L1	30m
Case Study: Cable Management Wrong Port	L1	30m
Case Study: Disk Full Root Services Down	L1	30m
Case Study: Firmware Update Boot Loop	L2	30m
Case Study: HBA Firmware Mismatch	L2	30m
Case Study: Link Flaps Bad Optic	L1	30m
Case Study: Memory ECC Errors Increasing	L1	30m
Case Study: NVMe Drive Disappeared	L2	30m
Case Study: OS Install Fails RAID Controller	L2	30m
Case Study: PXE Boot Fails UEFI Mismatch	L1	30m
Case Study: Power Supply Redundancy Lost	L1	30m
Case Study: RAID Degraded Rebuild Latency	L2	30m
Case Study: Rack PDU Overload Alert	L1	30m
Case Study: Serial Console Garbled	L1	30m
Case Study: Server Intermittent Reboot	L2	30m
Case Study: Server Remote Console Lag	L1	30m
Case Study: Thermal Throttle Fan Failure	L1	30m
Case Study: iDRAC Unreachable OS Up	L1	30m

---

Kubernetes

Topic Packs

Asset	Level	Time
API Gateways & Ingress	L2	5h
Argo Workflows	L2	4h
Cilium & eBPF Networking	L2	4h
Container Images	L1	3h
CrashLoopBackOff	L1	2h
Database Operations on Kubernetes	L2	4h
Docker	L1	2h
Envoy Proxy	L2	4h
HashiCorp Consul	L2	4h
Helm	L1	2h
Istio Service Mesh	L2	5h
K8s Ecosystem	L0	6h
K8s Networking	L1	2h
K8s RBAC	L1	2h
K8s Storage	L1	2h
Kubernetes Concept Chain	L0	2h
Kubernetes Debugging Playbook	L2	4h
Kubernetes Node Lifecycle	L2	4h
Kubernetes Ops (Production)	L2	5h
Kubernetes Pods & Scheduling	L1	4h
Kubernetes Services & Ingress	L1	4h
Kustomize	L1	3h
Multi-Tenancy Patterns	L2	5h
Node Maintenance	L1	2h
OOMKilled	L1	2h
Policy Engines (OPA / Kyverno)	L2	4h
Progressive Delivery	L2	4h
Service Mesh	L3	5h
cert-manager	L1	3h
etcd	L1	2h

Exercise Sets

Asset	Level	Time
Chaos Engineering Scripts (CLI)	L2	2h
Docker Exercises (Quest Ladder) (CLI)	L0	8h
Incident Simulator (18 scenarios) (CLI)	L2	4h
Investigation Engine (CLI)	L2	2h
Kubernetes Exercises (Quest Ladder) (CLI)	L1	10h

Labs

Asset	Level	Time
Lab: HPA Live Scaling (CLI)	L1	30m
Lab: Readiness Probe Failure (CLI)	L1	30m
Lab: Resource Limits OOMKilled (CLI)	L1	30m

Runbooks

Asset	Level	Time
Runbook: Deployment Stuck / Rollout Stalled	L1	15m
Runbook: Disaster Recovery	L2	20m
Runbook: HPA Not Scaling	L2	15m
Runbook: HPA Thrashing (Rapid Scale Up/Down)	L2	15m
Runbook: ImagePullBackOff	L1	15m
Runbook: Ingress 404	L1	15m
Runbook: Ingress 502 Bad Gateway	L2	15m
Runbook: Istio 503 Errors	L3	15m
Runbook: Kyverno Blocking Workloads	L2	15m
Runbook: NetworkPolicy Block	L2	15m
Runbook: Node NotReady	L1	15m
Runbook: OOMKilled Container	L1	15m
Runbook: PVC Stuck in Pending	L1	15m
Runbook: Pod CrashLoopBackOff	L1	15m
Runbook: Pod Eviction	L2	15m
Runbook: RBAC Forbidden	L2	15m
Runbook: Readiness Probe Failed	L1	15m
Runbook: Velero Backup & Restore	L2	15m
Runbook: etcd Backup & Restore	L2	20m
Runbook: etcd High Latency / Slow Operations	L3	20m

Scenarios

Asset	Level	Time
Interview: Database Failover During Deploy	L3	15m
Interview: Deployment Stuck Progressing	L2	15m
Interview: Docker Container Debugging	L1	15m
Interview: HPA Not Scaling	L2	15m
Interview: Ingress 404	L2	15m
Interview: Kyverno Blocking Deploys	L2	15m
Interview: Pods OOMKilled	L2	15m
Interview: RBAC Forbidden	L2	15m
Interview: Service Mesh 503s	L3	15m
Interview: etcd Space Exceeded	L3	15m
Scenario: etcd Troubleshooting	L3	30m

Assessments

Asset	Level	Time
Skillcheck: Container Runtime Debug	L2	30m
Skillcheck: Database Ops	L2	30m
Skillcheck: Docker	L0	30m
Skillcheck: Kubernetes	L1	45m
Skillcheck: Kubernetes Operators	L3	30m
Skillcheck: Kubernetes Under the Covers	L2	45m
Skillcheck: Policy Engines	L2	30m
Skillcheck: Service Mesh	L3	30m
Skillcheck: etcd	L2	30m

Drills

Asset	Level	Time
Container Runtime Drills	L2	30m
Database Ops Drills	L2	30m
Docker Drills	L1	30m
Kubernetes Operators Drills	L3	30m
Policy Engine Drills	L2	30m
Service Mesh Drills	L3	30m
etcd Drills	L2	30m
kubectl Drills	L1	45m

References

Asset	Level	Time
Track: Containers	L0	10h
Track: Kubernetes Core	L1	15h
kubectl Debugging Cheatsheet	L1	15m

Deep Dives

Asset	Level	Time
Deep Dive: Kubernetes Networking	L2	45m
Deep Dive: Kubernetes Pod Lifecycle	L2	45m
Deep Dive: Kubernetes Scheduler	L3	45m

Case Studys

Asset	Level	Time
Case Study: CNI Broken After Restart	L2	30m
Case Study: CoreDNS Timeout Pod DNS	L2	30m
Case Study: CrashLoopBackOff No Logs	L1	30m
Case Study: DaemonSet Blocks Eviction	L2	30m
Case Study: Drain Blocked by PDB	L2	30m
Case Study: ImagePullBackOff Registry Auth	L1	30m
Case Study: Node Pressure Evictions	L2	30m
Case Study: Persistent Volume Stuck Terminating	L2	30m
Case Study: Resource Quota Blocking Deploy	L2	30m
Case Study: Service No Endpoints	L1	30m

---

DevOps & Tooling

Topic Packs

Asset	Level	Time
AI Tools for DevOps	L1	4h
Ansible Automation	L1	5h
Ansible Deep Dive	L2	5h
ArgoCD & GitOps	L2	5h
Automation	L1	1h
Backstage & Developer Portals	L2	3h
CI/CD Pipelines & Patterns	L1	8h
CSS Fundamentals	L0	2h
Capacity Planning	L2	4h
Career Engineering for Ops People	L0	4h
Ceph Storage	L2	5h
Certificates	L2	1h
Change Management	L1	4h
Chaos Engineering & Fault Injection	L2	5h
Claude Code	L1	2h
Cloud Ops Basics	L1	4h
Configuration Management	L1	1h
Containers Deep Dive	L1	5h
Corporate IT Fluency for Engineers	L0	3h
Crossplane	L2	3h
DORA Metrics & DevEx	L1	3h
Dagger / CI as Code	L2	2h
Data Modeling	L2	1h
Database Internals	L1	2h
Databases	L2	1h
Debugging Methodology	L1	4h
Deployments	L1	1h
Distributed Systems Fundamentals	L2	5h
Edge & IoT Infrastructure	L2	4h
Elasticsearch	L1	2h
Feature Flags	L1	3h
FinOps & Cost Optimization	L2	4h
Fleet Operations at Scale	L2	5h
Git Advanced	L2	5h
Git Workflows & Branching Strategies	L2	3h
Git for DevOps	L0	3h
GitHub Actions	L1	4h
GitOps	L1	2h
GraphQL	L2	4h
Homelab & Learning Infrastructure	L0	5h
Incident Command & On-Call	L2	4h
Incident Triage	L1	2h
Infrastructure Testing	L2	4h
Kafka	L1	2h
Legacy System Archaeology	L1	4h
Load Testing	L1	3h
Make & Build Systems	L1	3h
Mental Models (Core Concepts)	L0	4h
Message Queues	L2	5h
MongoDB Operations	L1	4h
MySQL / MariaDB Operations	L1	4h
Nginx & Web Servers	L1	5h
Nix / NixOS	L2	4h
On-Call	L2	1h
OpenTofu & Terraform Ecosystem	L2	2h
Ops War Stories & Pattern Recognition	L2	4h
Performance	L2	1h
Platform Engineering Patterns	L2	5h
PostgreSQL Operations	L2	4h
Postmortems & SLOs	L2	4h
PowerShell	L1	2h
Pulumi	L2	3h
Python Async & Concurrency	L2	4h
Python Debugging	L1	3h
Python Packaging	L2	3h
Python for Infrastructure	L1	5h
RHCE (EX294) Exam Preparation	L2	40h
RabbitMQ & Message Queues	L2	3h
Redis Operations	L2	3h
Reliability Patterns	L2	1h
Runbook Craft	L1	4h
S3-Compatible Object Storage	L1	3h
SQL Fundamentals	L0	2h
SQLite Operations & Internals	L2	3h
SRE Practices	L2	5h
Systems Thinking for Engineers	L1	4h
Terraform / IaC	L1	5h
Terraform Deep Dive	L2	5h
The Ops of AI/ML Workloads	L2	4h
The Psychology of Incidents	L2	4h
Toil Reduction	L2	1h
VS Code for DevOps	L0	3h
Vendor Management & Escalation	L1	3h
WebAssembly for Infrastructure	L3	3h

Exercise Sets

Asset	Level	Time
Ansible Exercises (Quest Ladder) (CLI)	L1	8h
Python Exercises (Quest Ladder) (CLI)	L0	8h

Labs

Asset	Level	Time
Ansible Lab: Conditionals and Loops	L1	25m
Ansible Lab: Facts and Variables	L0	20m
Ansible Lab: Install Nginx (Idempotency)	L1	20m
Ansible Lab: Ping and Debug	L0	15m
Ansible Lab: Roles	L1	20m
Ansible Lab: Templates and Handlers	L1	25m
Ansible Lab: Vault (Secrets Management)	L2	25m
Lab: GitOps Sync and Drift (CLI)	L2	30m
Lab: Helm Upgrade Rollback (CLI)	L1	30m

Runbooks

Asset	Level	Time
Runbook: Ansible Playbook Failure	L1	15m
Runbook: ArgoCD Out of Sync	L2	15m
Runbook: Build Failure Triage	L1	15m
Runbook: Container Registry Pull Failure	L1	15m
Runbook: Deploy Rollback	L1	15m
Runbook: Helm Upgrade Failed	L1	15m
Runbook: Long-Running Query / Lock Contention	L2	15m
Runbook: Pipeline Stuck / Hung Job	L1	15m
Runbook: PostgreSQL Connection Exhaustion	L2	15m
Runbook: PostgreSQL Disk Space Critical	L2	15m
Runbook: PostgreSQL Replication Lag	L2	15m
Runbook: Terraform Drift Detection Response	L2	15m
Runbook: Terraform State Lock Stuck	L2	15m

Scenarios

Asset	Level	Time
Adversarial Interview Gauntlet (30 sequences)	L2	15h
Break/Fix: Handler Name Mismatch	L1	10m
Break/Fix: Jinja2 Syntax Error in Template	L1	15m
Break/Fix: Privilege Escalation Missing	L1	10m
Break/Fix: Task Ordering / Dependency	L1	15m
Break/Fix: Undefined Variable + Bare Jinja2	L1	15m
Break/Fix: Wrong Host Scope	L1	10m
Break/Fix: Wrong Module Parameter	L0	10m
Break/Fix: YAML Indentation Error	L0	10m
Interview: Config Drift Detected	L2	15m
Interview: Cost Spike Investigation	L2	15m
Interview: GitOps Drift Detected	L2	15m
Interview: Helm Upgrade Broke Prod	L2	15m

Assessments

Asset	Level	Time
Skillcheck: Ansible	L1	30m
Skillcheck: CI/CD	L1	30m
Skillcheck: Cloud Basics	L1	30m
Skillcheck: DevOps Roadmap (Expanded)	L1	45m
Skillcheck: FinOps	L2	30m
Skillcheck: Git	L0	30m
Skillcheck: GitOps	L2	30m
Skillcheck: Helm & Release Ops	L1	30m
Skillcheck: Postmortems & SLOs	L2	30m
Skillcheck: Python Automation	L0	30m
Skillcheck: Terraform / IaC	L1	30m

Drills

Asset	Level	Time
Ansible Drills	L1	30m
CI/CD Drills	L1	30m
FinOps Drills	L2	30m
Git Drills	L0	30m
GitOps & ArgoCD Drills	L2	30m
Helm Drills	L1	30m
Postmortem & SLO Drills	L2	30m
Python Drills	L0	30m
Terraform Drills	L1	30m

References

Asset	Level	Time
AI-Assisted DevOps Cookbook	L1	2h
CI Pipeline Documentation	L1	15m
DevOps Learning Roadmap	L0	15m
Mental-Model-First Learning Guide	L0	30m
Topic Tag Cloud & Content Index	L0	10m
Track: Helm & Release Ops	L1	8h
Track: Incident Response	L2	10h
Track: Infrastructure	L1	12h

Deep Dives

Asset	Level	Time
Deep Dive: CI/CD Pipeline Architecture	L2	45m
Deep Dive: Containers How They Really Work	L2	45m
Deep Dive: Docker Image Internals	L2	45m
Deep Dive: Terraform State Internals	L2	45m

Case Studys

Asset	Level	Time
Case Study: API Latency Spike — BGP Route Leak, Fix Is Network ACL	L2	30m
Case Study: Alert Storm — Flapping Health Checks	L2	30m
Case Study: Ansible Playbook Hangs — SSH Agent Forwarding Blocked by Firewall	L2	30m
Case Study: Backup Job Failing — iSCSI Target Unreachable, VLAN Misconfigured	L2	30m
Case Study: CI Pipeline Fails — Docker Layer Cache Corruption	L2	30m
Case Study: Canary Deploy Routing to Wrong Backend — Ingress Misconfigured	L2	30m
Case Study: Container Vuln Scanner False Positive Blocks Deploy	L2	30m
Case Study: DNS Looks Broken — TLS Expired, Fix Is Cert-Manager	L2	30m
Case Study: Database Replication Lag — Root Cause Is RAID Degradation	L2	30m
Case Study: Deployment Stuck — ImagePull Auth Failure, Vault Secret Rotation	L2	30m
Case Study: Disk Full — Runaway Logs, Fix Is Loki Retention	L2	30m
Case Study: Grafana Dashboard Empty — Prometheus Blocked by NetworkPolicy	L2	30m
Case Study: HPA Flapping — Metrics Server Clock Skew, Fix Is NTP	L2	30m
Case Study: Job Queue Backlog — Worker Pod CPU Throttled by cgroup	L2	30m
Case Study: Node NotReady — NIC Firmware Bug, Fix Is Ansible Playbook	L2	30m
Case Study: Pod OOMKilled — Memory Leak in Sidecar, Fix Is Helm Values	L2	30m
Case Study: SSH Timeout — MTU Mismatch, Fix Is Terraform Variable	L2	30m
Case Study: Service Mesh 503s — Envoy Misconfigured, RBAC Policy	L2	30m
Case Study: Terraform Apply Fails — State Lock Stuck, DynamoDB Throttle	L2	30m
Case Study: User Auth Failing — OIDC Cert Expired, Cloud KMS Rotation	L2	30m
Ops Archaeology: The 5% That Can't Resolve	L2	30m
Ops Archaeology: The Alerts That Stopped Firing	L2	30m
Ops Archaeology: The Certificate That Works Sometimes	L2	30m
Ops Archaeology: The Cluster That Disagrees With Itself	L2	30m
Ops Archaeology: The Container That Exits Immediately	L1	30m
Ops Archaeology: The DR That Looks Ready But Isn't	L2	30m
Ops Archaeology: The Deploy That Didn't Deploy	L1	30m
Ops Archaeology: The Gateway That Returns 502	L1	30m
Ops Archaeology: The Job That Succeeded Wrong	L2	30m
Ops Archaeology: The Pods That Won't Schedule	L1	30m
Ops Archaeology: The Replica That Fell Behind	L2	30m
Ops Archaeology: The Requests That Vanish	L2	30m
Ops Archaeology: The Service That Won't Start	L1	30m
Ops Archaeology: The Session Store That Keeps Dying	L2	30m
Ops Archaeology: The Slow Death Nobody Noticed	L2	30m

---

CLI Tools

Topic Packs

Asset	Level	Time
Modern CLI Tools	L0	3h
Modern Cli Workflows	L1	1h
Regex & Text Wrangling	L1	5h
YAML, JSON & Config Formats	L1	3h
awk: The Record/Field Processor	L1	2h
curl & wget	L1	3h
fd	L1	2h
find	L1	3h
fzf	L1	2h
grep & Regular Expressions	L1	4h
jq	L1	2h
ripgrep	L1	2h
sed: The Stream Editor	L1	2h
xargs	L1	3h

Assessments

Asset	Level	Time
Skillcheck: Modern CLI Tools	L0	30m

Drills

Asset	Level	Time
Modern CLI Drills	L0	30m

---

Observability

Topic Packs

Asset	Level	Time
Alerting Rules	L2	4h
Continuous Profiling	L2	4h
Log Pipelines	L2	5h
Monitoring Fundamentals	L1	5h
Monitoring Migration (Legacy to Modern)	L2	5h
Observability Deep Dive	L2	6h
OpenTelemetry	L2	5h
Prometheus Deep Dive	L2	5h
SLO Tooling	L2	4h
Synthetic Monitoring	L1	3h
Tracing	L1	2h

Labs

Asset	Level	Time
Lab: Loki No Logs (CLI)	L2	30m
Lab: Prometheus Target Down (CLI)	L2	30m

Runbooks

Asset	Level	Time
Runbook: Alert Storm (Flapping / Too Many Alerts)	L2	15m
Runbook: Grafana Dashboard Blank / No Data	L1	15m
Runbook: Log Pipeline Backpressure / Logs Not Appearing	L2	15m
Runbook: Loki No Logs	L2	15m
Runbook: Prometheus Target Down	L1	15m
Runbook: Tempo No Traces	L2	15m

Scenarios

Asset	Level	Time
Interview: Loki Logs Disappeared	L2	15m
Interview: Prometheus Target Down	L2	15m

Assessments

Asset	Level	Time
Skillcheck: Alerting Rules	L2	30m
Skillcheck: Observability	L2	30m

Drills

Asset	Level	Time
Alerting Rules Drills	L2	30m
LogQL Drills	L2	30m
Observability Drills	L2	30m
PromQL Drills	L2	30m

References

Asset	Level	Time
Observability Architecture	L2	30m
Track: Observability	L2	10h

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Security

Topic Packs

Asset	Level	Time
Audit Logging	L1	2h
Backup Restore	L1	2h
Compliance & Audit Automation	L2	5h
Disaster Recovery & Backup Engineering	L2	5h
HashiCorp Vault	L2	4h
Infrastructure Forensics	L2	5h
LDAP & Identity Management	L2	5h
Offensive Security Basics	L1	2h
Open Policy Agent	L2	4h
Opsec Mistakes	L1	2h
Runtime Security with Falco	L2	4h
SELinux & AppArmor	L2	5h
SELinux & Linux Hardening	L2	5h
Secrets Management	L2	4h
Security Basics (Ops-Focused)	L1	4h
Security Scanning	L1	2h
Supply Chain Security	L2	3h
TLS & Certificates Ops	L1	6h

Labs

Asset	Level	Time
Lab: Trivy Scan Remediation (CLI)	L1	30m

Runbooks

Asset	Level	Time
Runbook: CVE Response (Critical Vulnerability)	L2	20m
Runbook: Certificate Renewal Failed	L2	15m
Runbook: Credential Rotation (Exposed Secret)	L2	15m
Runbook: Secret Rotation	L2	15m
Runbook: Unauthorized Access Investigation	L2	20m

Scenarios

Asset	Level	Time
Interview: CI Vuln Scan Failed	L2	15m
Interview: Certificate Expired	L2	15m
Interview: Secret Leaked to Git	L2	15m
Interview: Vault Token Expired	L2	15m

Assessments

Asset	Level	Time
Skillcheck: Secrets Management	L2	30m
Skillcheck: Security (Expanded)	L2	30m
Skillcheck: TLS & PKI	L2	30m

Drills

Asset	Level	Time
Secrets Management Drills	L2	30m
Security Drills	L2	30m
TLS & PKI Drills	L2	30m

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Cloud

Topic Packs

Asset	Level	Time
AWS CloudWatch	L2	4h
AWS EC2	L1	4h
AWS ECS	L2	4h
AWS IAM	L1	4h
AWS Lambda	L2	3h
AWS Networking	L1	4h
AWS Route 53	L2	3h
AWS S3 Deep Dive	L1	4h
AWS Troubleshooting	L1	2h
Azure Troubleshooting	L1	2h
Cloud Deep Dive	L2	5h
GCP Troubleshooting	L1	2h
Serverless Computing	L2	1h

Runbooks

Asset	Level	Time
Runbook: Cloud Capacity Limit Hit	L2	15m
Runbook: VPC IP Exhaustion	L2	15m

Assessments

Asset	Level	Time
Skillcheck: Cloud Providers	L1	30m

Drills

Asset	Level	Time
Cloud Deep Dive Drills	L2	30m
Cloud Ops Drills	L1	30m

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Containers

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