nixpkgs/pkgs/tools/networking/dd-agent/integrations-core.nix
2019-03-02 12:57:22 +03:00

92 lines
3.1 KiB
Nix

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