Let's Chat Agentic & Knowledge Sharing

Martin Povolny
Red Hat — Cost Management

2026-07-18

Agenda

1. RHT Certifications — free courses, OpenShift track
2. K3S — cheap Kubernetes for CI, dev, and testing
3. gabi-cli — query prod/stage like psql
4. Custom slash commands — encode workflows as markdown
5. Slack search — progress update

RHT Certifications

All courses and exams are free for Red Hat associates.

How to Access

• Red Hat Learning Platform: training-lms.redhat.com
  SSO login → auto-provisions RHLS subscription (auto-renews yearly)
• Course catalog: redhat.com/training
• Source page: RHT Courses for Employees

Three options:

1. ROLE — self-paced videos + labs (anytime)
2. Instructor-led (internal) — RH instructors, exams follow class
3. Instructor-led (external) — public classes, free but customers take precedence

OpenShift Track — My Recommendation

Admin track (SREs, operators team):

Developer track (backend devs):

Start here: DO180 (new to OCP) or DO280 (comfortable with oc)

Certification Restructure (May 2026)

Five tracks: Enterprise Linux · Ansible · OpenShift · Cloud-native · AI

Five levels: Technologist → Admin → Engineer → Specialist → Architect (RHCA)

RHCA = 5 creds within one track (no more mixing)

K3S — Cheap Kubernetes

Lightweight, certified K8s distribution. Single binary (~100MB).
Full K8s API — Helm charts, kubectl, manifests work unchanged.

Where We Use It

Same stack everywhere: OSAC fulfillment-service + cost consumer + 2x PostgreSQL

CI Example — OSAC PoC

# .github/workflows/integration.yml
name: Integration Test (k3s)
runs-on: ubuntu-latest
timeout-minutes: 15

Push to main → K3S spins up → deploys full stack → runs integration tests → tears down

Free. No dedicated cluster. No shared state. No cleanup debt.

Codespaces + Testing Farm

Codespaces (.devcontainer/devcontainer.json):

• Docker-in-Docker, kubectl, Helm, Claude Code
• Port-forward dashboard (:8020), metrics (:9000), OSAC API (:8011)
• Develop + test without any local setup

Testing Farm (~/Projects/koku/testfarm/):

• testing-farm reserve --compose Fedora-42
• SCP deploy script → SSH → full stack running
• SSH tunnel for local access to dashboard and API

gabi-cli — Query Prod/Stage Like psql

Read-only SQL against koku databases.
No direct DB access. No port-forwarding. No VPN to the DB.

Three Tools, One Winner

go install github.com/vkrizan/gabi-cli@latest
gabi-cli -n hccm-prod
gabi> SELECT org_id, schema_name FROM public.api_customer LIMIT 5;

Key Features

• Auto-route detection — finds the Gabi backend from active OCP namespace
• psql-like UX — \d (list tables), \d table (describe), \h (help)
• Automatic pager — long output doesn't flood your terminal
• Expanded display — \x for wide tables
• Persistent history — 500 entries, survives restarts
• Batch mode — gabi-cli -n hccm-prod "SELECT count(*) FROM ..."

One tool for interactive exploration AND scripting

When You'd Use It

• Alert duty — customer lookup, provider status, RTU row counts
• PR review — verify assumptions against real data
  (Jordi's deadlock — how many tenants have rates_to_usage rows?)
• Debugging — connection counts, lock contention, manifest status

Demo: live query against stage

Custom Slash Commands

.claude/commands/<name>.md = /<name> in Claude Code

Just markdown. No code, no build, no deployment.

How They Differ

A command is a repeatable workflow encoded as prose.

My Commands — This Wiki

My Commands — dictpert

dictpert (Czech dictionary RAG):

Key Takeaway

One .md file replaces:

• a shell script
• a runbook
• tribal knowledge

The agent becomes as good at your workflow as you are at describing it.

Demo: /alert-duty in action → then open the .md file

Slack Search — Progress Update

Previously presented at AI Show & Tell (Jun 26)

What's New

• Powers /alert-duty Slack trend analysis
• Integrated as MCP skill for Claude Code sessions
• Evaluating official Slack MCP for live access (vs our offline SQLite approach)
• Private channels now downloadable with curl-file auth

Next: Compare with official Slack/GitLab/ServiceNow MCPs from the RHT AI Skills Workshop

Questions?

Links:

• gabi-cli: github.com/vkrizan/gabi-cli
• OSAC PoC (K3S CI): github.com/myersCody/cost_ai_grid_poc
• RHT Training: training-lms.redhat.com
• Previous deck: Let's Talk Agentic (Jun 22)