3fd324f823
Eelco has made several early contributions to NixOS including writing the samba module among other things, but is more or less inactive these days. By my brief inspection, he has not committed to the nixos/ tree since releasing Nix 2.13 in early 2023 and merging a PR to networking tests slightly before that. A lot of these tests/modules are actually unmaintained in practice, so we should update the code to reflect the practical reality so someone can consider picking them up.
277 lines
10 KiB
Nix
277 lines
10 KiB
Nix
# To run the test on the unfree ELK use the following command:
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# cd path/to/nixpkgs
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# NIXPKGS_ALLOW_UNFREE=1 nix-build -A nixosTests.elk.unfree.ELK-7
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{ system ? builtins.currentSystem,
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config ? {},
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pkgs ? import ../.. { inherit system config; },
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}:
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let
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inherit (pkgs) lib;
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esUrl = "http://localhost:9200";
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mkElkTest = name : elk :
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import ./make-test-python.nix ({
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inherit name;
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meta = with pkgs.lib.maintainers; {
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maintainers = [ offline basvandijk ];
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};
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nodes = {
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one =
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{ pkgs, lib, ... }: {
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# Not giving the machine at least 2060MB results in elasticsearch failing with the following error:
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#
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# OpenJDK 64-Bit Server VM warning:
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# INFO: os::commit_memory(0x0000000085330000, 2060255232, 0)
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# failed; error='Cannot allocate memory' (errno=12)
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#
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# There is insufficient memory for the Java Runtime Environment to continue.
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# Native memory allocation (mmap) failed to map 2060255232 bytes for committing reserved memory.
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#
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# When setting this to 2500 I got "Kernel panic - not syncing: Out of
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# memory: compulsory panic_on_oom is enabled" so lets give it even a
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# bit more room:
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virtualisation.memorySize = 3000;
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# For querying JSON objects returned from elasticsearch and kibana.
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environment.systemPackages = [ pkgs.jq ];
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services = {
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journalbeat = {
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enable = elk ? journalbeat;
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package = elk.journalbeat;
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extraConfig = pkgs.lib.mkOptionDefault (''
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logging:
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to_syslog: true
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level: warning
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metrics.enabled: false
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output.elasticsearch:
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hosts: [ "127.0.0.1:9200" ]
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journalbeat.inputs:
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- paths: []
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seek: cursor
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'');
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};
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filebeat = {
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enable = elk ? filebeat;
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package = elk.filebeat;
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inputs.journald.id = "everything";
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inputs.log = {
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enabled = true;
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paths = [
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"/var/lib/filebeat/test"
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];
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};
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settings = {
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logging.level = "info";
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};
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};
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metricbeat = {
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enable = true;
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package = elk.metricbeat;
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modules.system = {
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metricsets = ["cpu" "load" "memory" "network" "process" "process_summary" "uptime" "socket_summary"];
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enabled = true;
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period = "5s";
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processes = [".*"];
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cpu.metrics = ["percentages" "normalized_percentages"];
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core.metrics = ["percentages"];
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};
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settings = {
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output.elasticsearch = {
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hosts = ["127.0.0.1:9200"];
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};
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};
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};
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logstash = {
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enable = true;
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package = elk.logstash;
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inputConfig = ''
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exec { command => "echo -n flowers" interval => 1 type => "test" }
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exec { command => "echo -n dragons" interval => 1 type => "test" }
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'';
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filterConfig = ''
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if [message] =~ /dragons/ {
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drop {}
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}
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'';
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outputConfig = ''
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file {
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path => "/tmp/logstash.out"
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codec => line { format => "%{message}" }
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}
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elasticsearch {
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hosts => [ "${esUrl}" ]
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}
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'';
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};
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elasticsearch = {
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enable = true;
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package = elk.elasticsearch;
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};
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elasticsearch-curator = {
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enable = elk ? elasticsearch-curator;
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actionYAML = ''
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---
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actions:
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1:
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action: delete_indices
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description: >-
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Delete indices older than 1 second (based on index name), for logstash-
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prefixed indices. Ignore the error if the filter does not result in an
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actionable list of indices (ignore_empty_list) and exit cleanly.
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options:
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allow_ilm_indices: true
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ignore_empty_list: True
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disable_action: False
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filters:
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- filtertype: pattern
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kind: prefix
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value: logstash-
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- filtertype: age
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source: name
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direction: older
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timestring: '%Y.%m.%d'
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unit: seconds
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unit_count: 1
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'';
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};
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};
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};
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};
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passthru.elkPackages = elk;
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testScript =
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let
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valueObject = lib.optionalString (lib.versionAtLeast elk.elasticsearch.version "7") ".value";
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in ''
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import json
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def expect_hits(message):
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dictionary = {"query": {"match": {"message": message}}}
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return (
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"curl --silent --show-error --fail-with-body '${esUrl}/_search' "
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+ "-H 'Content-Type: application/json' "
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+ "-d '{}' ".format(json.dumps(dictionary))
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+ " | tee /dev/console"
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+ " | jq -es 'if . == [] then null else .[] | .hits.total${valueObject} > 0 end'"
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)
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def expect_no_hits(message):
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dictionary = {"query": {"match": {"message": message}}}
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return (
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"curl --silent --show-error --fail-with-body '${esUrl}/_search' "
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+ "-H 'Content-Type: application/json' "
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+ "-d '{}' ".format(json.dumps(dictionary))
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+ " | tee /dev/console"
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+ " | jq -es 'if . == [] then null else .[] | .hits.total${valueObject} == 0 end'"
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)
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def has_metricbeat():
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dictionary = {"query": {"match": {"event.dataset": {"query": "system.cpu"}}}}
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return (
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"curl --silent --show-error --fail-with-body '${esUrl}/_search' "
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+ "-H 'Content-Type: application/json' "
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+ "-d '{}' ".format(json.dumps(dictionary))
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+ " | tee /dev/console"
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+ " | jq -es 'if . == [] then null else .[] | .hits.total${valueObject} > 0 end'"
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)
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start_all()
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one.wait_for_unit("elasticsearch.service")
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one.wait_for_open_port(9200)
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# Continue as long as the status is not "red". The status is probably
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# "yellow" instead of "green" because we are using a single elasticsearch
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# node which elasticsearch considers risky.
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#
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# TODO: extend this test with multiple elasticsearch nodes
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# and see if the status turns "green".
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one.wait_until_succeeds(
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"curl --silent --show-error --fail-with-body '${esUrl}/_cluster/health'"
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+ " | jq -es 'if . == [] then null else .[] | .status != \"red\" end'"
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)
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with subtest("Perform some simple logstash tests"):
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one.wait_for_unit("logstash.service")
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one.wait_until_succeeds("cat /tmp/logstash.out | grep flowers")
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one.wait_until_succeeds("cat /tmp/logstash.out | grep -v dragons")
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with subtest("Metricbeat is running"):
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one.wait_for_unit("metricbeat.service")
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with subtest("Metricbeat metrics arrive in elasticsearch"):
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one.wait_until_succeeds(has_metricbeat())
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with subtest("Logstash messages arive in elasticsearch"):
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one.wait_until_succeeds(expect_hits("flowers"))
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one.wait_until_succeeds(expect_no_hits("dragons"))
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'' + lib.optionalString (elk ? journalbeat) ''
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with subtest(
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"A message logged to the journal is ingested by elasticsearch via journalbeat"
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):
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one.wait_for_unit("journalbeat.service")
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one.execute("echo 'Supercalifragilisticexpialidocious' | systemd-cat")
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one.wait_until_succeeds(
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expect_hits("Supercalifragilisticexpialidocious")
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)
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'' + lib.optionalString (elk ? filebeat) ''
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with subtest(
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"A message logged to the journal is ingested by elasticsearch via filebeat"
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):
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one.wait_for_unit("filebeat.service")
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one.execute("echo 'Superdupercalifragilisticexpialidocious' | systemd-cat")
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one.wait_until_succeeds(
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expect_hits("Superdupercalifragilisticexpialidocious")
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)
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one.execute(
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"echo 'SuperdupercalifragilisticexpialidociousIndeed' >> /var/lib/filebeat/test"
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)
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one.wait_until_succeeds(
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expect_hits("SuperdupercalifragilisticexpialidociousIndeed")
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)
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'' + lib.optionalString (elk ? elasticsearch-curator) ''
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with subtest("Elasticsearch-curator works"):
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one.systemctl("stop logstash")
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one.systemctl("start elasticsearch-curator")
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one.wait_until_succeeds(
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'! curl --silent --show-error --fail-with-body "${esUrl}/_cat/indices" | grep logstash | grep ^'
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)
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'';
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}) { inherit pkgs system; };
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in {
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# We currently only package upstream binaries.
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# Feel free to package an SSPL licensed source-based package!
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# ELK-7 = mkElkTest "elk-7-oss" {
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# name = "elk-7";
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# elasticsearch = pkgs.elasticsearch7-oss;
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# logstash = pkgs.logstash7-oss;
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# filebeat = pkgs.filebeat7;
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# metricbeat = pkgs.metricbeat7;
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# };
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unfree = lib.dontRecurseIntoAttrs {
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ELK-7 = mkElkTest "elk-7" {
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elasticsearch = pkgs.elasticsearch7;
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logstash = pkgs.logstash7;
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filebeat = pkgs.filebeat7;
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metricbeat = pkgs.metricbeat7;
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};
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};
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}
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