k8s-cloudnative-pg-troubleshooting SKILL.md skillA
k8s-cloudnative-pg-troubleshooting from k8s-servant/k8s-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add k8s-servant/k8s-skills/k8s-cloudnative-pg-troubleshooting@git:20261031.a5d0ab1Pins git:20261031.a5d0ab1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- k8s-servant/k8s-skills
- Path
skills/k8s-cloudnative-pg-troubleshooting/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261031.a5d0ab1, committed Oct 31, 2026
- Size
- 14,336 bytes
- Repository stars
- 35
- License
- Apache-2.0
Use when a CloudNativePG (CNPG) PostgreSQL Cluster in Kubernetes is not healthy: a Cluster stuck in "Setting up primary", "Creating a new replica" or "Waiting for the instances to become active", fewer ready instances than requested, an initdb or join pod that is Pending or in CreateContainerConfigError, PVCs that stay Pending, a bootstrap Secret that is missing, a replica that cannot be scheduled (pod anti-affinity, nodeSelector, taints), "Not enough disk space", failing WAL archiving or…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# CloudNativePG troubleshooting Find out why a CloudNativePG PostgreSQL cluster is not healthy, from the Cluster's status, its pods, PVCs and events and the operator's log, and propose a fix. **Read first, ask before changing.** Run the investigation commands freely. Run a command under an "Ask first" line only after the user approves that exact command; if your credentials do not allow it, give it to the user to run. Never run a "Proposed fix"; hand it to the user. How CloudNativePG works, in the parts that fail: - The **operator** (Deployment `cnpg-controller-manager`, usually in `cnpg-system`) reconciles every `Cluster` (`clusters.postgresql.cnpg.io`). It creates the instance pods and their PVCs directly, without a StatefulSet. - Instances are numbered: `my-db-1`, `my-db-2`, and so on, each with its own PVC of the same name (plus `my-db-1-wal` with separate WAL storage). The first instance is made by an **initdb** (or recovery) job, pod `my-db-1-initdb-...`; each replica by a **join** job, pod `my-db-2-join-...`. A job's pod must run before the instance exists. - One instance is the **primary**; the others stream from it. The Services `my-db-rw` …
Read the whole file at its exact version.
How to install
mdr add k8s-servant/k8s-skills/k8s-cloudnative-pg-troubleshooting@sha256:2e068801dff70b36The line at the top of this page pins the label git:20261031.a5d0ab1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_qghcrqa3rngtvpxp)
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Versions
The registry has recorded 1 version of this file, committed on Oct 31, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (14336 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
k8s-servant/k8s-skills · 35 stars · license Apache-2.0 · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qghcrqa3rngtvpxp GET https://markdownregistry.com/api/v1/resolve?ref=k8s-servant/k8s-skills/k8s-cloudnative-pg-troubleshooting GET https://markdownregistry.com/api/v1/blob/2e068801dff70b36366ee483b2b461ab3d1e07ea0e98ccca133d38be27c9c1d5
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.