nix/software/promtail.nix

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Nix

{ config, pkgs, ... }: {
# Promtail Logging
# Install the package
environment.systemPackages = with pkgs; [
promtail
];
# Configure the package:
# https://mynixos.com/nixpkgs/option/services.promtail.configuration
services.promtail = {
enable = true;
configuration = {
server = {
http_listen_port = 3031;
grpc_listen_port = 0;
};
positions = {
filename = "/tmp/positions.yaml";
};
clients = [{
url = "https://loki.sysctl.io/loki/api/v1/push";
basic_auth = {
username = "loki-sa";
password = null; # https://nixos.wiki/wiki/Comparison_of_secret_managing_schemes;
};
}];
scrape_configs = [{
job_name = "journal";
journal = {
max_age = "12h";
labels = {
job = "systemd-journal";
host = "nixos-p1";
};
};
relabel_configs = [{
source_labels = [ "__journal__systemd_unit" ];
target_label = "unit";
}];
}];
};
};
}