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<ol class="chapter"><li class="chapter-item expanded "><a href="project-context-primer.html"><strong aria-hidden="true">1.</strong> Project Context Primer</a></li><li class="chapter-item expanded "><a href="what-you-will-learn.html"><strong aria-hidden="true">2.</strong> What You Will Learn</a></li><li class="chapter-item expanded "><a href="quickstart.html"><strong aria-hidden="true">3.</strong> Quickstart</a></li><li class="chapter-item expanded "><a href="part-i.html"><strong aria-hidden="true">4.</strong> Part I — Foundations</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="introduction.html"><strong aria-hidden="true">4.1.</strong> Introduction</a></li><li class="chapter-item expanded "><a href="architecture-overview.html"><strong aria-hidden="true">4.2.</strong> Architecture Overview</a></li><li class="chapter-item expanded "><a href="testing-philosophy.html"><strong aria-hidden="true">4.3.</strong> Testing Philosophy</a></li><li class="chapter-item expanded "><a href="scenario-lifecycle.html"><strong aria-hidden="true">4.4.</strong> Scenario Lifecycle</a></li><li class="chapter-item expanded "><a href="design-rationale.html"><strong aria-hidden="true">4.5.</strong> Design Rationale</a></li></ol></li><li class="chapter-item expanded "><a href="part-ii.html"><strong aria-hidden="true">5.</strong> Part II — User Guide</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="workspace-layout.html"><strong aria-hidden="true">5.1.</strong> Workspace Layout</a></li><li class="chapter-item expanded "><a href="annotated-tree.html"><strong aria-hidden="true">5.2.</strong> Annotated Tree</a></li><li class="chapter-item expanded "><a href="authoring-scenarios.html"><strong aria-hidden="true">5.3.</strong> Authoring Scenarios</a></li><li class="chapter-item expanded "><a href="workloads.html"><strong aria-hidden="true">5.4.</strong> Core Content: Workloads & Expectations</a></li><li class="chapter-item expanded "><a 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<h1 class="menu-title">Logos Blockchain Testing Framework Book</h1>
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<h1 id="running-examples"><a class="header" href="#running-examples">Running Examples</a></h1>
<p>The framework provides three runner modes: <strong>host</strong> (local processes), <strong>compose</strong> (Docker Compose), and <strong>k8s</strong> (Kubernetes).</p>
<h2 id="quick-start-recommended"><a class="header" href="#quick-start-recommended">Quick Start (Recommended)</a></h2>
<p>Use <code>scripts/run/run-examples.sh</code> for all modes—it handles all setup automatically:</p>
<pre><code class="language-bash"># Host mode (local processes)
scripts/run/run-examples.sh -t 60 -v 3 -e 1 host
# Compose mode (Docker Compose)
scripts/run/run-examples.sh -t 60 -v 3 -e 1 compose
# K8s mode (Kubernetes)
scripts/run/run-examples.sh -t 60 -v 3 -e 1 k8s
</code></pre>
<p><strong>Parameters:</strong></p>
<ul>
<li><code>-t 60</code> — Run duration in seconds</li>
<li><code>-v 3</code> — Number of validators</li>
<li><code>-e 1</code> — Number of executors</li>
<li><code>host|compose|k8s</code> — Deployment mode</li>
</ul>
<p>This script handles:</p>
<ul>
<li>Circuit asset setup</li>
<li>Binary building/bundling</li>
<li>Image building (compose/k8s)</li>
<li>Image loading into cluster (k8s)</li>
<li>Execution with proper environment</li>
</ul>
<p><strong>Note:</strong> For <code>k8s</code> runs against non-local clusters (e.g. EKS), the cluster pulls images from a registry. In that case, build + push your image separately (see <code>scripts/build/build_test_image.sh</code>) and set <code>NOMOS_TESTNET_IMAGE</code> to the pushed reference.</p>
<h2 id="quick-smoke-matrix"><a class="header" href="#quick-smoke-matrix">Quick Smoke Matrix</a></h2>
<p>For a small "does everything still run?" matrix across all runners:</p>
<pre><code class="language-bash">scripts/run/run-test-matrix.sh -t 120 -v 1 -e 1
</code></pre>
<p>This runs host, compose, and k8s modes with various image-build configurations. Useful after making runner/image/script changes. Forwards <code>--metrics-*</code> options through to <code>scripts/run/run-examples.sh</code>.</p>
<p><strong>Common options:</strong></p>
<ul>
<li><code>--modes host,compose,k8s</code> — Restrict which modes run</li>
<li><code>--no-clean</code> — Skip <code>scripts/ops/clean.sh</code> step</li>
<li><code>--no-bundles</code> — Skip <code>scripts/build/build-bundle.sh</code> (reuses existing <code>.tmp</code> tarballs)</li>
<li><code>--no-image-build</code> — Skip the “rebuild image” variants in the matrix (compose/k8s)</li>
<li><code>--allow-nonzero-progress</code> — Soft-pass expectation failures if logs show non-zero progress (local iteration only)</li>
<li><code>--force-k8s-image-build</code> — Allow the k8s image-build variant even on non-docker-desktop clusters</li>
</ul>
<p><strong>Environment overrides:</strong></p>
<ul>
<li><code>VERSION=v0.3.1</code> — Circuit version</li>
<li><code>NOMOS_NODE_REV=&lt;commit&gt;</code> — nomos-node git revision</li>
<li><code>NOMOS_BINARIES_TAR=path/to/bundle.tar.gz</code> — Use prebuilt bundle</li>
<li><code>NOMOS_SKIP_IMAGE_BUILD=1</code> — Skip image rebuild inside <code>run-examples.sh</code> (compose/k8s)</li>
<li><code>NOMOS_BUNDLE_DOCKER_PLATFORM=linux/arm64|linux/amd64</code> — Docker platform for bundle builds (macOS/Windows)</li>
<li><code>COMPOSE_CIRCUITS_PLATFORM=linux-aarch64|linux-x86_64</code> — Circuits platform for image builds</li>
<li><code>SLOW_TEST_ENV=true</code> — Doubles built-in readiness timeouts (useful in CI / constrained laptops)</li>
<li><code>TESTNET_PRINT_ENDPOINTS=1</code> — Print <code>TESTNET_ENDPOINTS</code> / <code>TESTNET_PPROF</code> lines during deploy</li>
</ul>
<h2 id="dev-workflow-updating-nomos-node-revision"><a class="header" href="#dev-workflow-updating-nomos-node-revision">Dev Workflow: Updating nomos-node Revision</a></h2>
<p>The repo pins a <code>nomos-node</code> revision in <code>versions.env</code> for reproducible builds. To update it or point to a local checkout:</p>
<pre><code class="language-bash"># Pin to a new git revision (updates versions.env + Cargo.toml git revs)
scripts/ops/update-nomos-rev.sh --rev &lt;git_sha&gt;
# Use a local nomos-node checkout instead (for development)
scripts/ops/update-nomos-rev.sh --path /path/to/nomos-node
# If Cargo.toml was marked skip-worktree, clear it
scripts/ops/update-nomos-rev.sh --unskip-worktree
</code></pre>
<p><strong>Notes:</strong></p>
<ul>
<li>Don't commit absolute <code>NOMOS_NODE_PATH</code> values; prefer <code>--rev</code> for shared history/CI</li>
<li>After changing rev/path, expect <code>Cargo.lock</code> to update on the next <code>cargo build</code>/<code>cargo test</code></li>
</ul>
<h2 id="cleanup-helper"><a class="header" href="#cleanup-helper">Cleanup Helper</a></h2>
<p>If you hit Docker build failures, I/O errors, or disk space issues:</p>
<pre><code class="language-bash">scripts/ops/clean.sh
</code></pre>
<p>For extra Docker cache cleanup:</p>
<pre><code class="language-bash">scripts/ops/clean.sh --docker
</code></pre>
<hr />
<h2 id="host-runner-direct-cargo-run"><a class="header" href="#host-runner-direct-cargo-run">Host Runner (Direct Cargo Run)</a></h2>
<p>For manual control, run the <code>local_runner</code> binary directly:</p>
<pre><code class="language-bash">POL_PROOF_DEV_MODE=true \
NOMOS_NODE_BIN=/path/to/nomos-node \
NOMOS_EXECUTOR_BIN=/path/to/nomos-executor \
cargo run -p runner-examples --bin local_runner
</code></pre>
<h3 id="host-runner-environment-variables"><a class="header" href="#host-runner-environment-variables">Host Runner Environment Variables</a></h3>
<div class="table-wrapper"><table><thead><tr><th>Variable</th><th>Default</th><th>Effect</th></tr></thead><tbody>
<tr><td><code>NOMOS_DEMO_VALIDATORS</code></td><td>1</td><td>Number of validators (legacy: <code>LOCAL_DEMO_VALIDATORS</code>)</td></tr>
<tr><td><code>NOMOS_DEMO_EXECUTORS</code></td><td>1</td><td>Number of executors (legacy: <code>LOCAL_DEMO_EXECUTORS</code>)</td></tr>
<tr><td><code>NOMOS_DEMO_RUN_SECS</code></td><td>60</td><td>Run duration in seconds (legacy: <code>LOCAL_DEMO_RUN_SECS</code>)</td></tr>
<tr><td><code>NOMOS_NODE_BIN</code></td><td>—</td><td>Path to nomos-node binary (required)</td></tr>
<tr><td><code>NOMOS_EXECUTOR_BIN</code></td><td>—</td><td>Path to nomos-executor binary (required)</td></tr>
<tr><td><code>NOMOS_LOG_DIR</code></td><td>None</td><td>Directory for per-node log files</td></tr>
<tr><td><code>NOMOS_TESTS_KEEP_LOGS</code></td><td>0</td><td>Keep per-run temporary directories (useful for debugging/CI)</td></tr>
<tr><td><code>NOMOS_TESTS_TRACING</code></td><td>false</td><td>Enable debug tracing preset</td></tr>
<tr><td><code>NOMOS_LOG_LEVEL</code></td><td>info</td><td>Global log level: error, warn, info, debug, trace</td></tr>
<tr><td><code>NOMOS_LOG_FILTER</code></td><td>None</td><td>Fine-grained module filtering (e.g., <code>cryptarchia=trace,nomos_da_sampling=debug</code>)</td></tr>
<tr><td><code>POL_PROOF_DEV_MODE</code></td><td>—</td><td><strong>REQUIRED</strong>: Set to <code>true</code> for all runners</td></tr>
</tbody></table>
</div>
<p><strong>Note:</strong> Requires circuit assets and host binaries. Use <code>scripts/run/run-examples.sh host</code> to handle setup automatically.</p>
<hr />
<h2 id="compose-runner-direct-cargo-run"><a class="header" href="#compose-runner-direct-cargo-run">Compose Runner (Direct Cargo Run)</a></h2>
<p>For manual control, run the <code>compose_runner</code> binary directly. Compose requires a Docker image with embedded assets.</p>
<h3 id="option-1-prebuilt-bundle-recommended"><a class="header" href="#option-1-prebuilt-bundle-recommended">Option 1: Prebuilt Bundle (Recommended)</a></h3>
<pre><code class="language-bash"># 1. Build a Linux bundle (includes binaries + circuits)
scripts/build/build-bundle.sh --platform linux
# Creates .tmp/nomos-binaries-linux-v0.3.1.tar.gz
# 2. Build image (embeds bundle assets)
export NOMOS_BINARIES_TAR=.tmp/nomos-binaries-linux-v0.3.1.tar.gz
scripts/build/build_test_image.sh
# 3. Run
NOMOS_TESTNET_IMAGE=logos-blockchain-testing:local \
POL_PROOF_DEV_MODE=true \
cargo run -p runner-examples --bin compose_runner
</code></pre>
<h3 id="option-2-manual-circuitimage-setup"><a class="header" href="#option-2-manual-circuitimage-setup">Option 2: Manual Circuit/Image Setup</a></h3>
<pre><code class="language-bash"># Fetch and copy circuits
scripts/setup/setup-nomos-circuits.sh v0.3.1 /tmp/nomos-circuits
cp -r /tmp/nomos-circuits/* testing-framework/assets/stack/kzgrs_test_params/
# Build image
scripts/build/build_test_image.sh
# Run
NOMOS_TESTNET_IMAGE=logos-blockchain-testing:local \
POL_PROOF_DEV_MODE=true \
cargo run -p runner-examples --bin compose_runner
</code></pre>
<h3 id="platform-note-macos--apple-silicon"><a class="header" href="#platform-note-macos--apple-silicon">Platform Note (macOS / Apple Silicon)</a></h3>
<ul>
<li>Docker Desktop runs a <code>linux/arm64</code> engine by default</li>
<li>For native performance: <code>NOMOS_BUNDLE_DOCKER_PLATFORM=linux/arm64</code> (recommended for local testing)</li>
<li>For amd64 targets: <code>NOMOS_BUNDLE_DOCKER_PLATFORM=linux/amd64</code> (slower via emulation)</li>
</ul>
<h3 id="compose-runner-environment-variables"><a class="header" href="#compose-runner-environment-variables">Compose Runner Environment Variables</a></h3>
<div class="table-wrapper"><table><thead><tr><th>Variable</th><th>Default</th><th>Effect</th></tr></thead><tbody>
<tr><td><code>NOMOS_TESTNET_IMAGE</code></td><td>—</td><td>Image tag (required, must match built image)</td></tr>
<tr><td><code>POL_PROOF_DEV_MODE</code></td><td>—</td><td><strong>REQUIRED</strong>: Set to <code>true</code> for all runners</td></tr>
<tr><td><code>NOMOS_DEMO_VALIDATORS</code></td><td>1</td><td>Number of validators</td></tr>
<tr><td><code>NOMOS_DEMO_EXECUTORS</code></td><td>1</td><td>Number of executors</td></tr>
<tr><td><code>NOMOS_DEMO_RUN_SECS</code></td><td>60</td><td>Run duration in seconds</td></tr>
<tr><td><code>COMPOSE_NODE_PAIRS</code></td><td>—</td><td>Alternative topology format: "validators×executors" (e.g., <code>3x2</code>)</td></tr>
<tr><td><code>NOMOS_METRICS_QUERY_URL</code></td><td>None</td><td>Prometheus-compatible base URL for runner to query</td></tr>
<tr><td><code>NOMOS_METRICS_OTLP_INGEST_URL</code></td><td>None</td><td>Full OTLP HTTP ingest URL for node metrics export</td></tr>
<tr><td><code>NOMOS_GRAFANA_URL</code></td><td>None</td><td>Grafana base URL for printing/logging</td></tr>
<tr><td><code>COMPOSE_RUNNER_HOST</code></td><td>127.0.0.1</td><td>Host address for port mappings</td></tr>
<tr><td><code>COMPOSE_RUNNER_PRESERVE</code></td><td>0</td><td>Keep containers running after test</td></tr>
<tr><td><code>NOMOS_LOG_LEVEL</code></td><td>info</td><td>Node log level (stdout/stderr)</td></tr>
<tr><td><code>NOMOS_LOG_FILTER</code></td><td>None</td><td>Fine-grained module filtering</td></tr>
</tbody></table>
</div>
<p><strong>Config file option:</strong> <code>testing-framework/assets/stack/cfgsync.yaml</code> (<code>tracing_settings.logger</code>) — Switch node logs between stdout/stderr and file output</p>
<h3 id="compose-specific-features"><a class="header" href="#compose-specific-features">Compose-Specific Features</a></h3>
<ul>
<li><strong>Node control support</strong>: Only runner that supports chaos testing (<code>.enable_node_control()</code> + chaos workloads)</li>
<li><strong>External observability</strong>: Set <code>NOMOS_METRICS_*</code> / <code>NOMOS_GRAFANA_URL</code> to enable telemetry links and querying
<ul>
<li>Quickstart: <code>scripts/setup/setup-observability.sh compose up</code> then <code>scripts/setup/setup-observability.sh compose env</code></li>
</ul>
</li>
</ul>
<p><strong>Important:</strong></p>
<ul>
<li>Containers expect KZG parameters at <code>/kzgrs_test_params/kzgrs_test_params</code> (note the repeated filename)</li>
<li>Use <code>scripts/run/run-examples.sh compose</code> to handle all setup automatically</li>
</ul>
<hr />
<h2 id="k8s-runner-direct-cargo-run"><a class="header" href="#k8s-runner-direct-cargo-run">K8s Runner (Direct Cargo Run)</a></h2>
<p>For manual control, run the <code>k8s_runner</code> binary directly. K8s requires the same image setup as Compose.</p>
<h3 id="prerequisites"><a class="header" href="#prerequisites">Prerequisites</a></h3>
<ol>
<li><strong>Kubernetes cluster</strong> with <code>kubectl</code> configured</li>
<li><strong>Test image built</strong> (same as Compose, preferably with prebuilt bundle)</li>
<li><strong>Image available in cluster</strong> (loaded or pushed to registry)</li>
</ol>
<h3 id="build-and-load-image"><a class="header" href="#build-and-load-image">Build and Load Image</a></h3>
<pre><code class="language-bash"># 1. Build image with bundle (recommended)
scripts/build/build-bundle.sh --platform linux
export NOMOS_BINARIES_TAR=.tmp/nomos-binaries-linux-v0.3.1.tar.gz
scripts/build/build_test_image.sh
# 2. Load into cluster (choose one)
export NOMOS_TESTNET_IMAGE=logos-blockchain-testing:local
# For kind:
kind load docker-image logos-blockchain-testing:local
# For minikube:
minikube image load logos-blockchain-testing:local
# For remote cluster (push to registry):
docker tag logos-blockchain-testing:local your-registry/logos-blockchain-testing:latest
docker push your-registry/logos-blockchain-testing:latest
export NOMOS_TESTNET_IMAGE=your-registry/logos-blockchain-testing:latest
</code></pre>
<h3 id="run-the-example"><a class="header" href="#run-the-example">Run the Example</a></h3>
<pre><code class="language-bash">export NOMOS_TESTNET_IMAGE=logos-blockchain-testing:local
export POL_PROOF_DEV_MODE=true
cargo run -p runner-examples --bin k8s_runner
</code></pre>
<h3 id="k8s-runner-environment-variables"><a class="header" href="#k8s-runner-environment-variables">K8s Runner Environment Variables</a></h3>
<div class="table-wrapper"><table><thead><tr><th>Variable</th><th>Default</th><th>Effect</th></tr></thead><tbody>
<tr><td><code>NOMOS_TESTNET_IMAGE</code></td><td>—</td><td>Image tag (required)</td></tr>
<tr><td><code>POL_PROOF_DEV_MODE</code></td><td>—</td><td><strong>REQUIRED</strong>: Set to <code>true</code> for all runners</td></tr>
<tr><td><code>NOMOS_DEMO_VALIDATORS</code></td><td>1</td><td>Number of validators</td></tr>
<tr><td><code>NOMOS_DEMO_EXECUTORS</code></td><td>1</td><td>Number of executors</td></tr>
<tr><td><code>NOMOS_DEMO_RUN_SECS</code></td><td>60</td><td>Run duration in seconds</td></tr>
<tr><td><code>NOMOS_METRICS_QUERY_URL</code></td><td>None</td><td>Prometheus-compatible base URL for runner to query (PromQL)</td></tr>
<tr><td><code>NOMOS_METRICS_OTLP_INGEST_URL</code></td><td>None</td><td>Full OTLP HTTP ingest URL for node metrics export</td></tr>
<tr><td><code>NOMOS_GRAFANA_URL</code></td><td>None</td><td>Grafana base URL for printing/logging</td></tr>
<tr><td><code>K8S_RUNNER_NAMESPACE</code></td><td>Random</td><td>Kubernetes namespace (pin for debugging)</td></tr>
<tr><td><code>K8S_RUNNER_RELEASE</code></td><td>Random</td><td>Helm release name (pin for debugging)</td></tr>
<tr><td><code>K8S_RUNNER_NODE_HOST</code></td><td>—</td><td>NodePort host resolution for non-local clusters</td></tr>
<tr><td><code>K8S_RUNNER_DEBUG</code></td><td>0</td><td>Log Helm stdout/stderr for install commands</td></tr>
<tr><td><code>K8S_RUNNER_PRESERVE</code></td><td>0</td><td>Keep namespace/release after run (for debugging)</td></tr>
</tbody></table>
</div>
<h3 id="k8s--observability-optional"><a class="header" href="#k8s--observability-optional">K8s + Observability (Optional)</a></h3>
<pre><code class="language-bash">export NOMOS_METRICS_QUERY_URL=http://your-prometheus:9090
# Prometheus OTLP receiver example:
export NOMOS_METRICS_OTLP_INGEST_URL=http://your-prometheus:9090/api/v1/otlp/v1/metrics
# Optional: print Grafana link in TESTNET_ENDPOINTS
export NOMOS_GRAFANA_URL=http://your-grafana:3000
cargo run -p runner-examples --bin k8s_runner
</code></pre>
<p><strong>Notes:</strong></p>
<ul>
<li><code>NOMOS_METRICS_QUERY_URL</code> must be reachable from the runner process (often via <code>kubectl port-forward</code>)</li>
<li><code>NOMOS_METRICS_OTLP_INGEST_URL</code> must be reachable from nodes (pods/containers) and is backend-specific
<ul>
<li>Quickstart installer: <code>scripts/setup/setup-observability.sh k8s install</code> then <code>scripts/setup/setup-observability.sh k8s env</code></li>
<li>Optional dashboards: <code>scripts/setup/setup-observability.sh k8s dashboards</code></li>
</ul>
</li>
</ul>
<h3 id="via-scriptsrunrun-examplessh-recommended"><a class="header" href="#via-scriptsrunrun-examplessh-recommended">Via <code>scripts/run/run-examples.sh</code> (Recommended)</a></h3>
<pre><code class="language-bash">scripts/run/run-examples.sh -t 60 -v 3 -e 1 k8s \
--metrics-query-url http://your-prometheus:9090 \
--metrics-otlp-ingest-url http://your-prometheus:9090/api/v1/otlp/v1/metrics
</code></pre>
<h3 id="in-code-optional"><a class="header" href="#in-code-optional">In Code (Optional)</a></h3>
<pre><code class="language-rust ignore">use testing_framework_core::scenario::ScenarioBuilder;
use testing_framework_workflows::ObservabilityBuilderExt as _;
let plan = ScenarioBuilder::with_node_counts(1, 1)
.with_metrics_query_url_str("http://your-prometheus:9090")
.with_metrics_otlp_ingest_url_str("http://your-prometheus:9090/api/v1/otlp/v1/metrics")
.build();</code></pre>
<h3 id="important-k8s-notes"><a class="header" href="#important-k8s-notes">Important K8s Notes</a></h3>
<ul>
<li>K8s runner mounts <code>testing-framework/assets/stack/kzgrs_test_params</code> as a hostPath volume</li>
<li>File path inside pods: <code>/kzgrs_test_params/kzgrs_test_params</code></li>
<li><strong>No node control support yet</strong>: Chaos workloads (<code>.enable_node_control()</code>) will fail</li>
<li>Optimized for local clusters (Docker Desktop K8s / minikube / kind)
<ul>
<li>Remote clusters require additional setup (registry push, PV/CSI for assets, etc.)</li>
</ul>
</li>
<li>Use <code>scripts/run/run-examples.sh k8s</code> to handle all setup automatically</li>
</ul>
<h2 id="next-steps"><a class="header" href="#next-steps">Next Steps</a></h2>
<ul>
<li><a href="ci-integration.html">CI Integration</a> — Automate tests in continuous integration</li>
<li><a href="environment-variables.html">Environment Variables</a> — Full variable reference</li>
<li><a href="logging-observability.html">Logging &amp; Observability</a> — Log collection and metrics</li>
<li><a href="troubleshooting.html">Troubleshooting</a> — Common issues and fixes</li>
</ul>
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