1. What smokeping-prober Is
smokeping-prober is a tool for probing network quality. It probes network quality by sending ICMP requests to target nodes.
2. Deploying smokeping-prober
2.1 Generating the smokeping-prober.yaml Configuration File
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| cat > smokeping_prober.yaml <<EOF
---
targets:
- hosts:
- 1.2.3.4
interval: 1s # Duration, Default 1s.
network: ip # One of ip, ip4, ip6. Default: ip (automatic IPv4/IPv6)
protocol: icmp # One of icmp, udp. Default: icmp (Requires privileged operation)
size: 56 # Packet data size in bytes. Default 56 (Range: 24 - 65535)
tos: 0x00 # Packet ToS field in decimal, hexadecimal or binary format. Default: 0 (Range: 0-255)
EOF
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2.2 Starting smokeping-prober
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| nerdctl run -d \
--name smokeping_prober \
--restart always \
--security-opt apparmor=unconfined \
--security-opt seccomp=unconfined \
-v `pwd`/smokeping_prober.yaml:/etc/smokeping_prober.yml \
-p 9374:9374 \
--privileged \
quay.io/superq/smokeping-prober:v0.9.0 \
--config.file=/etc/smokeping_prober.yml
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| nerdctl rm -f smokeping_prober
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| nerdctl logs smokeping_prober -f
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| nerdctl restart smokeping_prober
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2.3 Deploying the Endpoints for smokeping-prober
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| kubectl apply -f - <<EOF
apiVersion: v1
kind: Service
metadata:
name: smokeping-service
namespace: default
labels:
app: smokeping
spec:
ports:
- name: metrics
port: 9374
protocol: TCP
---
apiVersion: v1
kind: Endpoints
metadata:
name: smokeping-service
namespace: default
subsets:
- addresses:
- ip: 1.2.3.4
ports:
- name: metrics
port: 9374
protocol: TCP
EOF
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2.4 Deploying the ServiceMonitor for smokeping-prober
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| kubectl apply -f - <<EOF
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
name: smokeping-monitor
namespace: monitoring
labels:
tier: ai
spec:
endpoints:
- interval: 1s
port: metrics
path: /metrics
scheme: http
honorLabels: true
relabelings:
- action: replace
sourceLabels: [__address__]
targetLabel: node
regex: (.*):.*
replacement: $1
- action: replace
replacement: smokeping
targetLabel: role
selector:
matchLabels:
app: smokeping
namespaceSelector:
matchNames:
- default
EOF
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3. Viewing smokeping-prober Metrics
Import the dashboard https://grafana.com/grafana/dashboards/11335-smoke-ping/
You can view network quality metrics such as packet loss rate and latency.
You will see a dashboard like this
The metric shown on the dashboard is the packet loss count. If you want to view the packet loss rate, you can add a computed metric, with the formula:
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| (rate(smokeping_requests_total{host="$target"}[30s]) - rate(smokeping_response_duration_seconds_count{host="$target"}[5m]))
/
rate(smokeping_requests_total{host="$target"}[30s]) / 100
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