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1 | { lib, pkgs, config, myconfig, mylibs, ... }: | |
2 | let | |
3 | cfg = config.services.myDatabases; | |
4 | in { | |
5 | options.services.myDatabases = { | |
6 | postgresql = { | |
7 | enable = lib.mkOption { | |
8 | default = cfg.enable; | |
9 | example = true; | |
10 | description = "Whether to enable postgresql database"; | |
11 | type = lib.types.bool; | |
12 | }; | |
13 | }; | |
14 | }; | |
15 | ||
16 | config = lib.mkIf cfg.enable { | |
17 | nixpkgs.overlays = [ (self: super: rec { | |
18 | postgresql = self.postgresql_11_custom; | |
19 | }) ]; | |
20 | ||
21 | networking.firewall.allowedTCPPorts = [ 5432 ]; | |
22 | ||
23 | security.acme.certs."postgresql" = config.services.myCertificates.certConfig // { | |
24 | user = "postgres"; | |
25 | group = "postgres"; | |
26 | plugins = [ "fullchain.pem" "key.pem" "account_key.json" ]; | |
27 | domain = "db-1.immae.eu"; | |
28 | postRun = '' | |
29 | systemctl reload postgresql.service | |
30 | ''; | |
31 | }; | |
32 | ||
33 | system.activationScripts.postgresql = '' | |
34 | install -m 0755 -o postgres -g postgres -d ${myconfig.env.databases.postgresql.socket} | |
35 | ''; | |
36 | ||
37 | systemd.services.postgresql.serviceConfig.SupplementaryGroups = "keys"; | |
38 | services.postgresql = rec { | |
39 | enable = cfg.postgresql.enable; | |
40 | package = pkgs.postgresql; | |
41 | enableTCPIP = true; | |
42 | extraConfig = '' | |
43 | max_connections = 100 | |
44 | wal_level = logical | |
45 | shared_buffers = 512MB | |
46 | work_mem = 10MB | |
47 | max_wal_size = 1GB | |
48 | min_wal_size = 80MB | |
49 | log_timezone = 'Europe/Paris' | |
50 | datestyle = 'iso, mdy' | |
51 | timezone = 'Europe/Paris' | |
52 | lc_messages = 'en_US.UTF-8' | |
53 | lc_monetary = 'en_US.UTF-8' | |
54 | lc_numeric = 'en_US.UTF-8' | |
55 | lc_time = 'en_US.UTF-8' | |
56 | default_text_search_config = 'pg_catalog.english' | |
57 | ssl = on | |
58 | ssl_cert_file = '/var/lib/acme/postgresql/fullchain.pem' | |
59 | ssl_key_file = '/var/lib/acme/postgresql/key.pem' | |
60 | ''; | |
61 | authentication = '' | |
62 | local all postgres ident | |
63 | local all all md5 | |
64 | hostssl all all 188.165.209.148/32 md5 | |
65 | hostssl all all 178.33.252.96/32 md5 | |
66 | hostssl all all all pam | |
67 | hostssl replication backup-1 2001:41d0:302:1100::9:e5a9/128 pam pamservice=postgresql_replication | |
68 | hostssl replication backup-1 54.37.151.137/32 pam pamservice=postgresql_replication | |
69 | ''; | |
70 | }; | |
71 | ||
72 | mySecrets.keys = [ | |
73 | { | |
74 | dest = "postgresql/pam"; | |
75 | permissions = "0400"; | |
76 | group = "postgres"; | |
77 | user = "postgres"; | |
78 | text = with myconfig.env.databases.postgresql.pam; '' | |
79 | host ${myconfig.env.ldap.host} | |
80 | base ${myconfig.env.ldap.base} | |
81 | binddn ${dn} | |
82 | bindpw ${password} | |
83 | pam_filter ${filter} | |
84 | ssl start_tls | |
85 | ''; | |
86 | } | |
87 | { | |
88 | dest = "postgresql/pam_replication"; | |
89 | permissions = "0400"; | |
90 | group = "postgres"; | |
91 | user = "postgres"; | |
92 | text = '' | |
93 | host ${myconfig.env.ldap.host} | |
94 | base ${myconfig.env.ldap.base} | |
95 | binddn ${myconfig.env.ldap.host_dn} | |
96 | bindpw ${myconfig.env.ldap.password} | |
97 | pam_login_attribute cn | |
98 | ssl start_tls | |
99 | ''; | |
100 | } | |
101 | ]; | |
102 | ||
103 | security.pam.services = let | |
104 | pam_ldap = "${pkgs.pam_ldap}/lib/security/pam_ldap.so"; | |
105 | in [ | |
106 | { | |
107 | name = "postgresql"; | |
108 | text = '' | |
109 | auth required ${pam_ldap} config=/var/secrets/postgresql/pam | |
110 | account required ${pam_ldap} config=/var/secrets/postgresql/pam | |
111 | ''; | |
112 | } | |
113 | { | |
114 | name = "postgresql_replication"; | |
115 | text = '' | |
116 | auth required ${pam_ldap} config=/var/secrets/postgresql/pam_replication | |
117 | account required ${pam_ldap} config=/var/secrets/postgresql/pam_replication | |
118 | ''; | |
119 | } | |
120 | ]; | |
121 | }; | |
122 | } | |
123 |