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authortv <tv@krebsco.de>2015-07-10 20:58:55 +0200
committertv <tv@krebsco.de>2015-07-10 20:58:55 +0200
commitddbae50486682115ddaa6ba9cacfbd721c034472 (patch)
tree6c38c7f5c2843f4c75d277fe0287992d76389430 /modules
parentf9af1cb7a2cc898aee6ada1a934cad6d8971dd87 (diff)
tv.consul: init
Diffstat (limited to 'modules')
-rw-r--r--modules/cd/default.nix1
-rw-r--r--modules/mkdir/default.nix1
-rw-r--r--modules/nomic/default.nix1
-rw-r--r--modules/rmdir/default.nix1
-rw-r--r--modules/tv/config/consul-client.nix9
-rw-r--r--modules/tv/config/consul-server.nix22
-rw-r--r--modules/tv/consul/default.nix123
-rw-r--r--modules/wu/default.nix1
8 files changed, 159 insertions, 0 deletions
diff --git a/modules/cd/default.nix b/modules/cd/default.nix
index dcaea74..e3abd47 100644
--- a/modules/cd/default.nix
+++ b/modules/cd/default.nix
@@ -12,6 +12,7 @@ in
./users.nix
../tv/base.nix
../tv/base-cac-CentOS-7-64bit.nix
+ ../tv/config/consul-server.nix
../tv/ejabberd.nix # XXX echtes modul
../tv/exim-smarthost.nix
../tv/git/public.nix
diff --git a/modules/mkdir/default.nix b/modules/mkdir/default.nix
index e4c8343..76f0bb6 100644
--- a/modules/mkdir/default.nix
+++ b/modules/mkdir/default.nix
@@ -12,6 +12,7 @@ in
./users.nix
../tv/base.nix
../tv/base-cac-CentOS-7-64bit.nix
+ ../tv/config/consul-server.nix
../tv/exim-smarthost.nix
../tv/git/public.nix
../tv/sanitize.nix
diff --git a/modules/nomic/default.nix b/modules/nomic/default.nix
index 6f9c9e9..f61f97a 100644
--- a/modules/nomic/default.nix
+++ b/modules/nomic/default.nix
@@ -9,6 +9,7 @@ in
./hardware-configuration.nix
./users.nix
../tv/base.nix
+ ../tv/config/consul-server.nix
../tv/environment.nix
../tv/exim-retiolum.nix
../tv/git/public.nix
diff --git a/modules/rmdir/default.nix b/modules/rmdir/default.nix
index e9b694d..7279df7 100644
--- a/modules/rmdir/default.nix
+++ b/modules/rmdir/default.nix
@@ -12,6 +12,7 @@ in
./users.nix
../tv/base.nix
../tv/base-cac-CentOS-7-64bit.nix
+ ../tv/config/consul-server.nix
../tv/exim-smarthost.nix
../tv/git/public.nix
../tv/sanitize.nix
diff --git a/modules/tv/config/consul-client.nix b/modules/tv/config/consul-client.nix
new file mode 100644
index 0000000..0a8bf4d
--- /dev/null
+++ b/modules/tv/config/consul-client.nix
@@ -0,0 +1,9 @@
+{ pkgs, ... }:
+
+{
+ imports = [ ./consul-server.nix ];
+
+ tv.consul = {
+ server = pkgs.lib.mkForce false;
+ };
+}
diff --git a/modules/tv/config/consul-server.nix b/modules/tv/config/consul-server.nix
new file mode 100644
index 0000000..4cedbd3
--- /dev/null
+++ b/modules/tv/config/consul-server.nix
@@ -0,0 +1,22 @@
+{ config, ... }:
+
+{
+ imports = [ ../../tv/consul ];
+ tv.consul = rec {
+ enable = true;
+
+ inherit (config.tv.identity) self;
+ inherit (self) dc;
+
+ server = true;
+
+ hosts = with config.tv.identity.hosts; [
+ # TODO get this list automatically from each host where tv.consul.enable is true
+ cd
+ mkdir
+ nomic
+ rmdir
+ #wu
+ ];
+ };
+}
diff --git a/modules/tv/consul/default.nix b/modules/tv/consul/default.nix
new file mode 100644
index 0000000..c7a3da2
--- /dev/null
+++ b/modules/tv/consul/default.nix
@@ -0,0 +1,123 @@
+{ config, lib, pkgs, ... }:
+
+# if quorum gets lost, then start any node with a config that doesn't contain bootstrap_expect
+# but -bootstrap
+# TODO consul-bootstrap HOST that actually does is
+# TODO tools to inspect state of a cluster in outage state
+
+with builtins;
+with lib;
+let
+ service-name = "consul";
+
+ cfg = config.tv.consul;
+
+ out = {
+ imports = [ ../../tv/iptables ];
+ options.tv.consul = api;
+ config = mkIf cfg.enable (mkMerge [
+ imp
+ { tv.iptables.input-retiolum-accept-new-tcp = [ "8300" "8301" ]; }
+ # TODO udp for 8301
+ ]);
+ };
+
+ api = {
+ # TODO inherit (lib) api.options.enable; oder so
+ enable = mkOption {
+ type = types.bool;
+ default = false;
+ description = "enable tv.consul";
+ };
+ dc = mkOption {
+ type = types.unspecified;
+ };
+ hosts = mkOption {
+ type = with types; listOf unspecified;
+ };
+ encrypt-file = mkOption {
+ type = types.str; # TODO path (but not just into store)
+ default = "/etc/consul/encrypt.json";
+ };
+ data-dir = mkOption {
+ type = types.str; # TODO path (but not just into store)
+ default = "/var/lib/consul";
+ };
+ self = mkOption {
+ type = types.unspecified;
+ };
+ server = mkOption {
+ type = types.bool;
+ default = false;
+ };
+ GOMAXPROCS = mkOption {
+ type = types.int;
+ default = cfg.self.cores;
+ };
+ };
+
+ consul-config = {
+ datacenter = cfg.dc;
+ data_dir = cfg.data-dir;
+ log_level = "INFO";
+ #node_name =
+ server = cfg.server;
+ bind_addr = cfg.self.addr; # TODO cfg.addr
+ enable_syslog = true;
+ retry_join = map (getAttr "addr") (filter (host: host.fqdn != cfg.self.fqdn) cfg.hosts);
+ leave_on_terminate = true;
+ } // optionalAttrs cfg.server {
+ bootstrap_expect = length cfg.hosts;
+ leave_on_terminate = false;
+ };
+
+ imp = {
+ environment.systemPackages = with pkgs; [
+ consul
+ ];
+
+ systemd.services.consul = {
+ after = [ "network.target" ];
+ wantedBy = [ "multi-user.target" ];
+ path = with pkgs; [
+ consul
+ ];
+ environment = {
+ GOMAXPROCS = toString cfg.GOMAXPROCS;
+ };
+ serviceConfig = {
+ PermissionsStartOnly = "true";
+ SyslogIdentifier = "consul";
+ User = user.name;
+ PrivateTmp = "true";
+ Restart = "always";
+ ExecStartPre = pkgs.writeScript "consul-init" ''
+ #! /bin/sh
+ mkdir -p ${cfg.data-dir}
+ chown consul: ${cfg.data-dir}
+ '';
+ ExecStart = pkgs.writeScript "consul-service" ''
+ #! /bin/sh
+ set -euf
+ exec >/dev/null
+ exec consul agent \
+ -config-file=${toFile "consul.json" (toJSON consul-config)} \
+ -config-file=${cfg.encrypt-file} \
+ '';
+ #-node=${cfg.self.fqdn} \
+ #ExecStart = "${tinc}/sbin/tincd -c ${confDir} -d 0 -U ${user} -D";
+ };
+ };
+
+ users.extraUsers = singleton {
+ inherit (user) name uid;
+ };
+ };
+
+ user = {
+ name = "consul";
+ uid = 2983239726; # genid consul
+ };
+
+in
+out
diff --git a/modules/wu/default.nix b/modules/wu/default.nix
index 10438bb..e55fbaf 100644
--- a/modules/wu/default.nix
+++ b/modules/wu/default.nix
@@ -8,6 +8,7 @@ in
imports = [
./hosts.nix
../tv/base.nix
+ ../tv/config/consul-client.nix
../tv/exim-retiolum.nix
../tv/environment.nix
../tv/sanitize.nix