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refactor(users/flokli/nixos-tvix-cache): absorb otlpcollector into alloy

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We don't need a separate instance of opentelemetry-collector, alloy can
also do this job for us.

Change-Id: I1b671ba57d70b080f7db112e1afcfe2e0cbdd13e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12829
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: Jonas Chevalier <zimbatm@zimbatm.com>
Tested-by: BuildkiteCI
This commit is contained in:
Florian Klink 2024-11-22 22:27:37 +02:00 • committed by flokli
parent 09b343864a
commit cb85e87376
1 changed files with 36 additions and 52 deletions
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88
users/flokli/nixos/nixos-tvix-cache/monitoring.nix
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@ -39,72 +39,56 @@ in
services.alloy.enable = true;
environment.etc."alloy/config.alloy".text = ''
prometheus.exporter.unix "main" { }
// Accept OTLP. Forward metrics to victoriametrics, and traces to tempo.
otelcol.receiver.otlp "main" {
grpc {
endpoint = "[::1]:4317"
}
prometheus.scrape "main" {
targets = prometheus.exporter.unix.main.targets
forward_to = [otelcol.receiver.prometheus.default.receiver]
}
http {
endpoint = "[::1]:4318"
}
otelcol.receiver.prometheus "default" {
output {
metrics = [otelcol.exporter.otlp.default.input]
metrics = [otelcol.exporter.otlphttp.victoriametrics.input]
traces = [otelcol.exporter.otlp.tempo.input]
}
}
otelcol.exporter.otlp "default" {
// We push to Tempo over otlp-grpc.
otelcol.exporter.otlp "tempo" {
client {
endpoint = "127.0.0.1:4317"
endpoint = "127.0.0.1:4319"
tls {
insecure = true
}
}
}
// We push to VictoriaMetrics over otlp-http.
otelcol.exporter.otlphttp "victoriametrics" {
client {
endpoint = "http://localhost:8428/opentelemetry"
}
}
// Run a bundled node-exporter.
prometheus.exporter.unix "main" { }
// Scrape it.
prometheus.scrape "main" {
targets = prometheus.exporter.unix.main.targets
forward_to = [otelcol.receiver.prometheus.default.receiver]
}
// Convert Prometheus metrics to OTLP and export them.
otelcol.receiver.prometheus "default" {
output {
metrics = [otelcol.exporter.otlphttp.victoriametrics.input]
}
}
'';
services.opentelemetry-collector = {
enable = true;
settings = {
receivers = {
otlp.protocols.grpc.endpoint = "127.0.0.1:4317";
otlp.protocols.http.endpoint = "127.0.0.1:4318";
};
processors = {
batch = { };
};
exporters = {
otlp = {
endpoint = "127.0.0.1:4319"; # Tempo otlp-grpc
tls.insecure = true;
};
"otlphttp/metrics" = {
compression = "gzip";
encoding = "proto";
endpoint = "http://localhost:8428/opentelemetry";
tls.insecure = true;
};
};
service = {
pipelines = {
traces = {
receivers = [ "otlp" ];
processors = [ "batch" ];
exporters = [ "otlp" ];
};
metrics = {
receivers = [ "otlp" ];
processors = [ "batch" ];
exporters = [ "otlphttp/metrics" ];
};
};
};
};
};
services.victoriametrics.enable = true;