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nixpkgs/nixos/modules/services/security/vault.nix

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2017-06-07 21:31:40 +01:00
{ config, lib, pkgs, utils, ... }:
with lib;
let
inherit (pkgs) vault;
cfg = config.services.vault;
configFile = pkgs.writeText "vault.hcl" ''
listener "tcp" {
address = "${cfg.listener.address}"
${optionalString (cfg.listener.cluster_address != null)''
cluster_address = "${cfg.listener.cluster_address}"
''}
${optionalString (cfg.listener.tls_cert_file != null)''
tls_cert_file = "${cfg.listener.tls_cert_file}"
''}
${optionalString (cfg.listener.tls_key_file != null)''
tls_key_file = "${cfg.listener.tls_key_file}"
''}
${if cfg.listener.tls_disable then "tls_disable = \"1\"" else "" }
tls_min_version = "${cfg.listener.tls_min_version}"
${optionalString (cfg.listener.tls_cipher_suites != null)''
tls_cipher_suites = \"${cfg.listener.tls_cipher_suites}\"
''}
tls_prefer_server_cipher_suites = "${boolToString cfg.listener.tls_prefer_server_cipher_suites}"
tls_require_and_verify_client_cert = "${boolToString cfg.listener.tls_require_and_verify_client_cert}"
}
storage "${cfg.storage.backend}" {
${cfg.storage.extraConfig}
}
${if cfg.telemetry.extraConfig != "" then "
telemetry {
${if cfg.telemetry.disable_hostname then "disable_hostname = \"true\"" else ""}
${cfg.telemetry.extraConfig}
}" else ""}
'';
in
{
options = {
services.vault = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Enables the vault daemon.
'';
};
listener = {
address = mkOption {
type = types.str;
default = "127.0.0.1:8200";
description = ''
The name of the ip interface to listen to.
'';
};
cluster_address = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
The name of the address to bind to for cluster server-to-server requests.
'';
};
tls_cert_file = mkOption {
type = types.str;
default = "";
description = ''
The name of the crt file for the ssl certificate.
'';
};
tls_key_file = mkOption {
type = types.str;
default = "";
description = ''
The name of the key file for the ssl certificate.
'';
};
tls_disable = mkOption {
type = types.bool;
default = false;
description = ''
Specifies if TLS will be disabled. Vault assumes TLS by default, so you must explicitly disable TLS to opt-in to insecure communication.
'';
};
tls_min_version = mkOption {
type = types.enum [ "tls10" "tls11" "tls12" ];
default = "tls12";
description = ''
The minimum supported version of TLS. Accepted values are "tls10", "tls11" or "tls12".
'';
};
tls_cipher_suites = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
The list of supported ciphersuites as a comma-separated-list.
'';
};
tls_prefer_server_cipher_suites = mkOption {
type = types.bool;
default = false;
description = ''
Specifies to prefer the server's ciphersuite over the client ciphersuites.
'';
};
tls_require_and_verify_client_cert = mkOption {
type = types.bool;
default = false;
description = ''
Turns on client authentication for this listener.
'';
};
};
storage = {
backend = mkOption {
type = types.str;
default = "inMemory";
description = ''
The name of the type of storage backend.
'';
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = ''
Configuration for storage
'';
};
};
telemetry = {
disable_hostname = mkOption {
type = types.bool;
default = false;
description = ''
Specifies if gauge values should be prefixed with the local hostname.
'';
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = ''
configuration for telemetry
'';
};
};
};
};
config = mkIf cfg.enable {
systemd.services.vault =
{ description = "Vault server daemon";
wantedBy = ["multi-user.target"];
preStart =
''
mkdir -m 0755 -p /var/lib/vault
'';
serviceConfig =
{ ExecStart =
"${pkgs.vault}/bin/vault server -config ${configFile}";
KillMode = "process";
};
};
};
}