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`crictl` now features 3 new CLI parameters: - `--enable-tracing`: Enable OpenTelemetry tracing. (default: false) - `--tracing-endpoint`: Address to which the gRPC tracing collector will send spans to. (default: "0.0.0.0:4317") - `--tracing-sampling-rate-per-million`: Number of samples to collect per million OpenTelemetry spans. Set to 1000000 or -1 to always sample. (default: -1) The tracer provider will be created on startup and the `Shutdown()` invocation will ensure that all spans are processed before exiting the binary. The `hack/tracing` directory contains scripts for local testing: ``` > ./hack/tracing/start … Everything is ready, open http://localhost:16686 to access jaeger ``` When now running `crictl` with `--enable-tracing`: ``` > sudo ./build/bin/linux/amd64/crictl --enable-tracing ps ``` Then jaeger should show collected traces and spans for the 3 RPCs `ListContainers`, `ImageFsInfo` as well as `Version`. Signed-off-by: Sascha Grunert <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| #!/usr/bin/env bash | ||
| set -uo pipefail | ||
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| cd "$(dirname "$0")" | ||
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| CONTAINER_RUNTIME=$(which podman 2>/dev/null) || CONTAINER_RUNTIME=$(which docker 2>/dev/null) | ||
| if [[ -z "$CONTAINER_RUNTIME" ]]; then | ||
| echo "Neither docker nor podman found in \$PATH" | ||
| exit 1 | ||
| fi | ||
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| set -e | ||
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| export OTLP_CTR=otlp | ||
| export JAEGER_CTR=jaeger | ||
| export CONTAINER_RUNTIME |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| #!/usr/bin/env bash | ||
| set -uo pipefail | ||
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| # Global vars to be used | ||
| # shellcheck source=env | ||
| source "$(dirname "${BASH_SOURCE[0]}")"/env | ||
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| "$CONTAINER_RUNTIME" logs "$OTLP_CTR" 2>&1 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| receivers: | ||
| otlp: | ||
| protocols: | ||
| http: | ||
| grpc: | ||
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| exporters: | ||
| logging: | ||
| loglevel: debug | ||
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| jaeger: | ||
| endpoint: localhost:14250 | ||
| tls: | ||
| insecure: true | ||
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| processors: | ||
| batch: | ||
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| extensions: | ||
| health_check: | ||
| pprof: | ||
| endpoint: :1888 | ||
| zpages: | ||
| endpoint: :55679 | ||
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| service: | ||
| extensions: [pprof, zpages, health_check] | ||
| pipelines: | ||
| traces: | ||
| receivers: [otlp] | ||
| processors: [batch] | ||
| exporters: [logging, jaeger] | ||
| metrics: | ||
| receivers: [otlp] | ||
| processors: [batch] | ||
| exporters: [logging] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| #!/usr/bin/env bash | ||
| set -uo pipefail | ||
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| # Global vars to be used | ||
| # shellcheck source=stop | ||
| source "$(dirname "${BASH_SOURCE[0]}")"/stop | ||
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| JAEGER_IMG="jaegertracing/all-in-one:1.41.0" | ||
| OTLP_IMG="otel/opentelemetry-collector:0.70.0" | ||
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| echo "Starting $JAEGER_CTR" | ||
| "$CONTAINER_RUNTIME" run -d --rm --network host --name "$JAEGER_CTR" "$JAEGER_IMG" | ||
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| PORT=14250 | ||
| MAX_CNT=100 | ||
| for ((i = 0; i <= "$MAX_CNT"; i++)); do | ||
| if netstat -tuplen 2>/dev/null | grep -q "$PORT .* LISTEN"; then | ||
| break | ||
| fi | ||
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| if [[ $i == "$MAX_CNT" ]]; then | ||
| echo "Giving up" | ||
| exit 1 | ||
| fi | ||
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| echo "Waiting for gRPC port $PORT to listen… ($i)" | ||
| sleep 3 | ||
| done | ||
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| echo "Starting $OTLP_CTR" | ||
| "$CONTAINER_RUNTIME" run -d --rm --network host --name "$OTLP_CTR" \ | ||
| -v ./otel-collector-config.yaml:/etc/otel-collector-config.yaml \ | ||
| "$OTLP_IMG" --config=/etc/otel-collector-config.yaml | ||
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| for ((i = 0; i <= "$MAX_CNT"; i++)); do | ||
| if ./logs | grep -q '"jaeger", "state": "READY"'; then | ||
| break | ||
| fi | ||
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| if [[ $i == "$MAX_CNT" ]]; then | ||
| echo "Giving up" | ||
| exit 1 | ||
| fi | ||
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| echo "Waiting for OTLP to become ready… ($i)" | ||
| sleep 3 | ||
| done | ||
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| echo "Everything is ready, open http://localhost:16686 to access jaeger" |
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