crowdsec: Split module into two files again

This commit is contained in:
SebastianStork 2025-09-10 23:53:28 +02:00
parent e23111b6d7
commit 6a67e1f483
3 changed files with 142 additions and 130 deletions

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@ -1,130 +0,0 @@
{
config,
inputs,
pkgs,
lib,
...
}:
let
cfg = config.custom.services.crowdsec;
user = config.users.users.crowdsec.name;
in
{
imports = with inputs.crowdsec.nixosModules; [
crowdsec
crowdsec-firewall-bouncer
];
options.custom.services.crowdsec = {
enable = lib.mkEnableOption "";
apiPort = lib.mkOption {
type = lib.types.port;
default = 8080;
};
prometheusPort = lib.mkOption {
type = lib.types.port;
default = 6060;
};
sources = {
iptables = lib.mkEnableOption "";
caddy = lib.mkEnableOption "";
sshd = lib.mkEnableOption "";
};
bouncers.firewall = lib.mkEnableOption "";
};
config = lib.mkIf cfg.enable {
meta.ports.tcp.list = [
cfg.apiPort
cfg.prometheusPort
];
sops.secrets."crowdsec/enrollment-key".owner = user;
users.groups.caddy.members = lib.mkIf cfg.sources.caddy [ user ];
services = {
crowdsec = {
enable = true;
package = inputs.crowdsec.packages.${pkgs.system}.crowdsec;
enrollKeyFile = config.sops.secrets."crowdsec/enrollment-key".path;
settings = {
api.server.listen_uri = "localhost:${builtins.toString cfg.apiPort}";
cscli.prometheus_uri = "http://localhost:${builtins.toString cfg.prometheusPort}";
};
allowLocalJournalAccess = true;
acquisitions =
let
mkJournalAcquisition = unit: {
source = "journalctl";
journalctl_filter = [ "_SYSTEMD_UNIT=${unit}" ];
labels.type = "syslog";
};
in
[
(lib.mkIf cfg.sources.iptables {
source = "journalctl";
journalctl_filter = [ "-k" ];
labels.type = "syslog";
})
(lib.mkIf cfg.sources.caddy {
filenames = [ "${config.services.caddy.logDir}/*.log" ];
labels.type = "caddy";
})
(lib.mkIf cfg.sources.sshd (mkJournalAcquisition "sshd.service"))
];
};
crowdsec-firewall-bouncer = lib.mkIf cfg.bouncers.firewall {
enable = true;
package = inputs.crowdsec.packages.${pkgs.system}.crowdsec-firewall-bouncer;
settings = {
api_key = "cs-firewall-bouncer";
api_url = "http://localhost:${builtins.toString cfg.apiPort}";
};
};
};
systemd.services.crowdsec.serviceConfig.ExecStartPre =
let
mkScript =
name: text:
lib.getExe (
pkgs.writeShellApplication {
inherit name text;
}
);
installCollection = collection: ''
if ! cscli collections list | grep -q "${collection}"; then
cscli collections install ${collection}
fi
'';
collectionsScript =
[
(lib.singleton "crowdsecurity/linux")
(lib.optional cfg.sources.iptables "crowdsecurity/iptables")
(lib.optional cfg.sources.caddy "crowdsecurity/caddy")
(lib.optional cfg.sources.sshd "crowdsecurity/sshd")
]
|> lib.concatLists
|> lib.map installCollection
|> lib.concatLines
|> mkScript "crowdsec-install-collections";
bouncerScript = mkScript "crowdsec-add-bouncer" ''
if ! cscli bouncers list | grep -q "firewall"; then
cscli bouncers add "firewall" --key "cs-firewall-bouncer"
fi
'';
in
lib.mkAfter (
lib.concatLists [
(lib.singleton collectionsScript)
(lib.optional cfg.bouncers.firewall bouncerScript)
]
);
};
}

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@ -0,0 +1,39 @@
{
config,
inputs,
pkgs,
lib,
...
}:
let
cfg = config.custom.services.crowdsec;
in
{
imports = [ inputs.crowdsec.nixosModules.crowdsec-firewall-bouncer ];
options.custom.services.crowdsec.bouncers.firewall = lib.mkEnableOption "";
config = lib.mkIf cfg.bouncers.firewall {
services.crowdsec-firewall-bouncer = {
enable = true;
package = inputs.crowdsec.packages.${pkgs.system}.crowdsec-firewall-bouncer;
settings = {
api_key = "cs-firewall-bouncer";
api_url = "http://localhost:${builtins.toString cfg.apiPort}";
};
};
systemd.services.crowdsec.serviceConfig.ExecStartPre = lib.mkAfter (
lib.getExe (
pkgs.writeShellApplication {
name = "crowdsec-add-bouncer";
text = ''
if ! cscli bouncers list | grep -q "firewall"; then
cscli bouncers add "firewall" --key "cs-firewall-bouncer"
fi
'';
}
)
);
};
}

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@ -0,0 +1,103 @@
{
config,
inputs,
pkgs,
lib,
...
}:
let
cfg = config.custom.services.crowdsec;
user = config.users.users.crowdsec.name;
in
{
imports = [ inputs.crowdsec.nixosModules.crowdsec ];
options.custom.services.crowdsec = {
enable = lib.mkEnableOption "";
apiPort = lib.mkOption {
type = lib.types.port;
default = 8080;
};
prometheusPort = lib.mkOption {
type = lib.types.port;
default = 6060;
};
sources = {
iptables = lib.mkEnableOption "";
caddy = lib.mkEnableOption "";
sshd = lib.mkEnableOption "";
};
};
config = lib.mkIf cfg.enable {
meta.ports.tcp.list = [
cfg.apiPort
cfg.prometheusPort
];
sops.secrets."crowdsec/enrollment-key".owner = user;
users.groups.caddy.members = lib.mkIf cfg.sources.caddy [ user ];
services.crowdsec = {
enable = true;
package = inputs.crowdsec.packages.${pkgs.system}.crowdsec;
enrollKeyFile = config.sops.secrets."crowdsec/enrollment-key".path;
settings = {
api.server.listen_uri = "localhost:${builtins.toString cfg.apiPort}";
cscli.prometheus_uri = "http://localhost:${builtins.toString cfg.prometheusPort}";
};
allowLocalJournalAccess = true;
acquisitions =
let
mkJournalAcquisition = unit: {
source = "journalctl";
journalctl_filter = [ "_SYSTEMD_UNIT=${unit}" ];
labels.type = "syslog";
};
in
[
(lib.mkIf cfg.sources.iptables {
source = "journalctl";
journalctl_filter = [ "-k" ];
labels.type = "syslog";
})
(lib.mkIf cfg.sources.caddy {
filenames = [ "${config.services.caddy.logDir}/*.log" ];
labels.type = "caddy";
})
(lib.mkIf cfg.sources.sshd (mkJournalAcquisition "sshd.service"))
];
};
systemd.services.crowdsec.serviceConfig.ExecStartPre =
let
installCollection = collection: ''
if ! cscli collections list | grep -q "${collection}"; then
cscli collections install ${collection}
fi
'';
mkScript =
name: text:
lib.getExe (
pkgs.writeShellApplication {
inherit name text;
}
);
collectionsScript =
[
(lib.singleton "crowdsecurity/linux")
(lib.optional cfg.sources.iptables "crowdsecurity/iptables")
(lib.optional cfg.sources.caddy "crowdsecurity/caddy")
(lib.optional cfg.sources.sshd "crowdsecurity/sshd")
]
|> lib.concatLists
|> lib.map installCollection
|> lib.concatLines
|> mkScript "crowdsec-install-collections";
in
lib.mkAfter collectionsScript;
};
}