container-lifecycle

A set of operating rules for managing containers in RHDH Local, a local environment for Red Hat Developer Hub. Containers package services so they can run consistently.

In plain words
What is it for?
It helps use the lab command to start or stop the environment, inspect status and logs, preserve or remove data, run a clean baseline, and handle services that share RHDH’s network.
Why use it?
It standardizes how the environment is started, stopped, reset, monitored, and connected, reducing mistakes when managing its services.

Cursor rule for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/benwilcock/rhdh-lab/container-lifecycle
Clone the repo
git clone --depth 1 https://github.com/benwilcock/rhdh-lab

Made for: Cursor.

Per session 798 This file is loaded in full into every session.
When invoked 798 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00798 $0.00798
Opus 5 $0.00399 $0.00399
Sonnet 5 $0.00160 $0.00160
Haiku 4.5 $0.00080 $0.00080

Measured 2d ago against content hash 4c039660d6dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

container-lifecycle scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursor/rules/container-lifecycle.mdc · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Container Lifecycle Management

ALWAYS Use the rhdh-lab CLI

The workspace provides a unified lab script that MUST be used for starting and stopping containers.

Starting Containers

./lab up                    # Start everything (customized + orchestrator), tail logs
./lab up --no-logs          # Start everything, return to prompt
./lab up --baseline         # Pristine RHDH (no customizations, no orchestrator)

Lightspeed AI chat is always included in RHDH 1.10+. Configure your LLM provider in rhdh-customizations/.env (e.g. ENABLE_VLLM=true for LM Studio).

Stopping Containers

./lab down                  # Stop all containers (keep volumes)
./lab down --volumes        # Stop and remove all data (clean slate)

./lab down always removes customization copies from rhdh-local/ (restores pristine state).

Viewing Status and Logs

./lab status                # Show running containers
./lab logs                  # Follow all container logs
./lab logs rhdh             # Follow a specific service

Network Namespace Sharing (CRITICAL)

Several containers use network_mode: "service:rhdh", sharing RHDH's network namespace:

  • lightspeed-core (port 8080; Lightspeed Core + Llama Stack in one container)

Why this matters:

  • When RHDH restarts, it gets a NEW network namespace
  • Containers in network_mode: "service:rhdh" stay in the OLD namespace
  • Result: 504 Gateway Timeout errors -- containers appear "running" but are unreachable
  • Solution: ALWAYS restart ALL containers together using ./lab

FORBIDDEN Operations

# NEVER do this when orchestrator/lightspeed are enabled:
podman compose restart rhdh
podman compose restart lightspeed-core
podman compose down && podman compose up -d
podman compose -f compose.yaml -f orchestrator/compose.yaml restart

REQUIRED Operations

# ALWAYS do this instead:
./lab down
./lab up

Exception: If running ONLY base RHDH via --baseline (no lightspeed, no orchestrator), direct podman compose restart rhdh is acceptable for config-only changes.

Read the full file on GitHub · 99 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 99 lines · 798 tokens per session scan A 4c039660d6dc

Subscribe to this mod's changes

container-lifecycle is a cursor rule published in the GitHub repository benwilcock/rhdh-lab (2 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 798 tokens to every session, about $0.0040 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.