nixos-config/machines/chungus/telemetry/loki.nix

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{ config, pkgs, ... }:
{
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services.opentelemetry-collector.settings = {
exporters.loki = {
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endpoint = "http://127.0.0.1:${toString config.services.loki.configuration.server.http_listen_port}/loki/api/v1/push";
default_labels_enabled = {
exporter = true;
job = true;
instance = true;
level = true;
};
};
processors = {
attributes.actions = [
{
action = "insert";
key = "loki.attribute.labels";
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value = "job, unit, boot_id, instance, facility, facility_label, priority, priority_label";
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}
];
resource.attributes = [
{
action = "insert";
key = "loki.resource.labels";
value = "host.name";
}
{
action = "insert";
key = "loki.format";
value = "raw";
}
];
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};
service.pipelines.logs.exporters = [ "loki" ];
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service.pipelines.logs.processors = [
"resource"
"attributes"
];
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};
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services.loki = {
enable = true;
# https://grafana.com/docs/loki/latest/configure/#supported-contents-and-default-values-of-lokiyaml
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configuration = {
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server = {
http_listen_port = 3100;
log_level = "warn";
};
auth_enabled = false;
ingester = {
lifecycler = {
address = "127.0.0.1";
ring = {
kvstore = {
store = "inmemory";
};
replication_factor = 1;
};
};
chunk_idle_period = "1h";
max_chunk_age = "1h";
chunk_target_size = 999999;
chunk_retain_period = "30s";
};
schema_config = {
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configs = [
{
from = "2024-05-28";
store = "tsdb";
object_store = "filesystem";
schema = "v13";
index = {
prefix = "index_";
period = "24h";
};
}
];
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};
storage_config = {
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tsdb_shipper = {
active_index_directory = "/var/lib/loki/tsdb-shipper-active";
cache_location = "/var/lib/loki/tsdb-shipper-cache";
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cache_ttl = "24h";
};
filesystem = {
directory = "/var/lib/loki/chunks";
};
};
limits_config = {
reject_old_samples = true;
reject_old_samples_max_age = "168h";
};
table_manager = {
retention_deletes_enabled = false;
retention_period = "0s";
};
compactor = {
working_directory = "/var/lib/loki";
compactor_ring = {
kvstore = {
store = "inmemory";
};
};
};
# The query_range block configures the query splitting and caching in the Loki query-frontend.
query_range = {
# Perform query parallelisations based on storage sharding configuration and
# query ASTs. This feature is supported only by the chunks storage engine.
parallelise_shardable_queries = false; # false because of https://github.com/grafana/loki/issues/7649#issuecomment-1625645403
};
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};
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# user, group, dataDir, extraFlags, (configFile)
};
# https://grafana.com/docs/grafana/latest/datasources/loki/#provision-the-loki-data-source
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services.grafana.provision.datasources.settings = {
apiVersion = 1;
datasources = [
{
name = "Loki";
type = "loki";
uid = "loki01";
url = "http://localhost:${toString config.services.loki.configuration.server.http_listen_port}";
jsonData = {
timeout = 360;
maxLines = 1000;
};
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}
];
};
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}