dotfiles/modules/nixos/services/influxdb2.nix

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# InfluxDB is a timeseries database similar to Prometheus. While
# VictoriaMetrics can also act as an InfluxDB, this version of it allows for
# infinite retention separate from our other metrics, which can be nice for
# recording health information, for example.
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{ config, lib, ... }:
{
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config = lib.mkIf config.services.influxdb2.enable {
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services.influxdb2 = {
provision = {
enable = true;
initialSetup = {
bucket = "default";
organization = "main";
passwordFile = config.secrets.influxdb2Password.dest;
retention = 0; # Keep data forever
tokenFile = config.secrets.influxdb2Token.dest;
username = "admin";
};
};
settings = { };
};
# Create credentials file for InfluxDB admin
secrets.influxdb2Password = lib.mkIf config.services.influxdb2.enable {
source = ../../../private/influxdb2-password.age;
dest = "${config.secretsDirectory}/influxdb2-password";
owner = "influxdb2";
group = "influxdb2";
permissions = "0440";
};
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systemd.services.influxdb2Password-secret = lib.mkIf config.services.influxdb2.enable {
requiredBy = [ "influxdb2.service" ];
before = [ "influxdb2.service" ];
};
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secrets.influxdb2Token = lib.mkIf config.services.influxdb2.enable {
source = ../../../private/influxdb2-token.age;
dest = "${config.secretsDirectory}/influxdb2-token";
owner = "influxdb2";
group = "influxdb2";
permissions = "0440";
};
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systemd.services.influxdb2Token-secret = lib.mkIf config.services.influxdb2.enable {
requiredBy = [ "influxdb2.service" ];
before = [ "influxdb2.service" ];
};
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caddy.routes = lib.mkIf config.services.influxdb2.enable [
{
match = [ { host = [ config.hostnames.influxdb ]; } ];
handle = [
{
handler = "reverse_proxy";
upstreams = [ { dial = "localhost:8086"; } ];
}
];
}
];
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# Configure Cloudflare DNS to point to this machine
services.cloudflare-dyndns.domains = [ config.hostnames.influxdb ];
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};
}