Manuel Ganter
5e470c33a5
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Add cgroup-based process grouping to the resource collector. Processes are grouped by their cgroup path, with container names resolved via configurable process-to-container mapping. New features: - Read cgroup info from /proc/[pid]/cgroup (supports v1 and v2) - Parse K8s resource notation (500m, 1Gi, etc.) for CPU/memory limits - Group metrics by container using CGROUP_PROCESS_MAP env var - Calculate usage percentages against limits from CGROUP_LIMITS env var - Output cgroup metrics with CPU cores used, memory RSS, and percentages Environment variables: - CGROUP_PROCESS_MAP: Map process names to container names for discovery - CGROUP_LIMITS: Define CPU/memory limits per container in K8s notation Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
36 lines
1 KiB
Bash
Executable file
36 lines
1 KiB
Bash
Executable file
#!/bin/bash
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# Local test script to verify cgroup grouping
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# Run from project root: ./test/local-test.sh
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set -e
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echo "Building collector..."
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go build -o bin/collector ./cmd/collector
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echo ""
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echo "Testing cgroup parsing on current system..."
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echo "Current process cgroup:"
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cat /proc/self/cgroup 2>/dev/null || echo "Cannot read /proc/self/cgroup (expected on macOS)"
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echo ""
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echo "Running collector for 10 seconds with cgroup grouping..."
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echo "Press Ctrl+C to stop early"
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echo ""
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# Set up test environment variables
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# Map common process names to container names
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export CGROUP_PROCESS_MAP='{"bash":"shell","collector":"collector","zsh":"shell"}'
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export CGROUP_LIMITS='{"shell":{"cpu":"2","memory":"4Gi"},"collector":{"cpu":"1","memory":"1Gi"}}'
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# Run collector
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timeout 10 ./bin/collector \
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--interval=2s \
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--top=5 \
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--log-format=json \
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2>/dev/null || true
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echo ""
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echo "Test complete!"
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echo ""
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echo "Note: On macOS, cgroup paths will be empty since cgroups are a Linux feature."
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echo "To test properly, run in a Linux container or VM."
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