91 lines
3.1 KiB
Nix
91 lines
3.1 KiB
Nix
# The declarations in this file build the Datadog agent's core
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# integrations. These integrations are tracked in a separate
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# repository[1] outside of the agent's primary repository and provide
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# checks for various kinds of services.
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#
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# Not all services are relevant for all users, however. As some of
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# them depend on various tools and Python packages it is nonsensical
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# to build *all* integrations by default.
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#
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# A set of default integrations is defined and built either way.
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# Additional integrations can be specified by overriding
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# `extraIntegrations` in datadog-integrations-core.
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#
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# In practice the syntax for using this with additional integrations
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# is not the most beautiful, but it works. For example to use
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# datadog-agent from the top-level with the `ntp`-integration
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# included, one could say:
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#
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# let
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# integrationsWithNtp = datadog-integrations-core {
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# # Extra integrations map from the integration name (as in the
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# # integrations-core repository) to a function that receives the
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# # Python package set and returns the required dependencies.g
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# ntp = (ps: [ ps.ntplib ]);
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# };
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#
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# in ddAgentWithNtp = datadog-agent.overrideAttrs(_ : {
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# python = integrationsWithNtp.python;
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# });
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#
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# The NixOS module 'datadog-agent' provides a simplified interface to
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# this. Please see the module itself for more information.
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#
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# [1]: https://github.com/DataDog/integrations-core
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{ pkgs, python, extraIntegrations ? {} }:
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with pkgs.lib;
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let
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src = pkgs.fetchFromGitHub {
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owner = "DataDog";
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repo = "integrations-core";
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rev = "7e9bebbb5b79ac30c16814ecefdc8f5c63cb4ea4";
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sha256 = "0yi7dlbd0rkzzl8cag713r86f40vl87aqrj97ral58csnnj7vfzb";
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};
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version = "git-2018-09-18";
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# Build helper to build a single datadog integration package.
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buildIntegration = { pname, ... }@args: python.pkgs.buildPythonPackage (args // {
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inherit src version;
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name = "datadog-integration-${pname}-${version}";
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postPatch = ''
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# jailbreak install_requires
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sed -i 's/==.*//' requirements.in
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cp requirements.in requirements.txt
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'';
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sourceRoot = "source/${args.sourceRoot or pname}";
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doCheck = false;
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});
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# Base package depended on by all other integrations.
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datadog_checks_base = buildIntegration {
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pname = "checks-base";
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sourceRoot = "datadog_checks_base";
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propagatedBuildInputs = with python.pkgs; [
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requests protobuf prometheus_client uuid simplejson uptime
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];
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};
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# Default integrations that should be built:
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defaultIntegrations = {
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disk = (ps: [ ps.psutil ]);
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mongo = (ps: [ ps.pymongo ]);
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network = (ps: [ ps.psutil ]);
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nginx = (ps: []);
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postgres = (ps: with ps; [ pg8000_1_12 psycopg2 ]);
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};
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# All integrations (default + extra):
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integrations = defaultIntegrations // extraIntegrations;
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builtIntegrations = mapAttrs (pname: fdeps: buildIntegration {
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inherit pname;
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propagatedBuildInputs = (fdeps python.pkgs) ++ [ datadog_checks_base ];
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}) integrations;
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in builtIntegrations // {
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inherit datadog_checks_base;
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python = python.withPackages (_: (attrValues builtIntegrations));
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}
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