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nixos/telegraf: make sure ping executable is available when trying to ping

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We need ping to be in PATH of the service otherwise it can't ping. This commit
adds it, conditional on one of the inputs being a ping task.
This commit is contained in:
Echo Nolan 2024-08-31 15:13:22 -04:00
parent 487972dea2
commit 934a337a13
2 changed files with 9 additions and 1 deletions
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3
nixos/modules/services/monitoring/telegraf.nix
View File

@ -61,7 +61,8 @@ in {
wantedBy = [ "multi-user.target" ];
wants = [ "network-online.target" ];
after = [ "network-online.target" ];
path = lib.optional (config.services.telegraf.extraConfig.inputs ? procstat) pkgs.procps;
path = lib.optional (config.services.telegraf.extraConfig.inputs ? procstat) pkgs.procps
++ lib.optional (config.services.telegraf.extraConfig.inputs ? ping) pkgs.iputils;
serviceConfig = {
EnvironmentFile = config.services.telegraf.environmentFiles;
ExecStartPre = lib.optional (config.services.telegraf.environmentFiles != [])

7
nixos/tests/telegraf.nix
View File

@ -19,6 +19,12 @@ import ./make-test-python.nix ({ pkgs, ...} : {
timeout = "5s";
data_format = "influx";
};
inputs.ping = {
urls = ["127.0.0.1"];
count = 4;
interval = "10s";
timeout = 1.0;
};
outputs.file.files = ["/tmp/metrics.out"];
outputs.file.data_format = "influx";
};
@ -29,5 +35,6 @@ import ./make-test-python.nix ({ pkgs, ...} : {
machine.wait_for_unit("telegraf.service")
machine.wait_until_succeeds("grep -q example /tmp/metrics.out")
machine.wait_until_succeeds("grep -q ping /tmp/metrics.out")
'';
})