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1 | { lib, pkgs, config, mylibs, ... }: | |
2 | let | |
3 | cfg = config.services.myDatabases; | |
4 | in { | |
5 | options.services.myDatabases = { | |
6 | enable = lib.mkEnableOption "my databases service"; | |
7 | postgresql = { | |
8 | enable = lib.mkOption { | |
9 | default = cfg.enable; | |
10 | example = true; | |
11 | description = "Whether to enable postgresql database"; | |
12 | type = lib.types.bool; | |
13 | }; | |
14 | }; | |
15 | ||
16 | mariadb = { | |
17 | enable = lib.mkOption { | |
18 | default = cfg.enable; | |
19 | example = true; | |
20 | description = "Whether to enable mariadb database"; | |
21 | type = lib.types.bool; | |
22 | }; | |
23 | }; | |
24 | ||
25 | redis = { | |
26 | enable = lib.mkOption { | |
27 | default = cfg.enable; | |
28 | example = true; | |
29 | description = "Whether to enable redis database"; | |
30 | type = lib.types.bool; | |
31 | }; | |
32 | }; | |
33 | }; | |
34 | ||
35 | config = lib.mkIf cfg.enable { | |
36 | nixpkgs.config.packageOverrides = oldpkgs: rec { | |
37 | postgresql = postgresql111; | |
38 | postgresql111 = oldpkgs.postgresql100.overrideAttrs(old: rec { | |
39 | passthru = old.passthru // { psqlSchema = "11.0"; }; | |
40 | name = "postgresql-11.1"; | |
41 | src = pkgs.fetchurl { | |
42 | url = "mirror://postgresql/source/v11.1/${name}.tar.bz2"; | |
43 | sha256 = "026v0sicsh7avzi45waf8shcbhivyxmi7qgn9fd1x0vl520mx0ch"; | |
44 | }; | |
45 | configureFlags = old.configureFlags ++ [ "--with-pam" ]; | |
46 | buildInputs = (old.buildInputs or []) ++ [ pkgs.pam ]; | |
47 | patches = old.patches ++ [ | |
48 | ./postgresql_run_socket_path.patch | |
49 | ]; | |
50 | }); | |
51 | mariadb = mariadbPAM; | |
52 | mariadbPAM = oldpkgs.mariadb.overrideAttrs(old: rec { | |
53 | cmakeFlags = old.cmakeFlags ++ [ "-DWITH_AUTHENTICATION_PAM=ON" ]; | |
54 | buildInputs = old.buildInputs ++ [ pkgs.pam ]; | |
55 | }); | |
56 | }; | |
57 | ||
58 | networking.firewall.allowedTCPPorts = [ 3306 5432 ]; | |
59 | ||
60 | # FIXME: initial sync | |
61 | # FIXME: backup | |
62 | # FIXME: restart after pam | |
63 | # FIXME: pam access doesn’t work (because of php module) | |
64 | # FIXME: ssl | |
65 | services.mysql = rec { | |
66 | enable = cfg.mariadb.enable; | |
67 | package = pkgs.mariadb; | |
68 | }; | |
69 | ||
70 | # Cannot use eldiron: psql complains too much rights on the key, and | |
71 | # setfacl cannot work properly because of acme prestart script | |
72 | security.acme.certs."postgresql" = config.services.myCertificates.certConfig // { | |
73 | user = "postgres"; | |
74 | group = "postgres"; | |
75 | plugins = [ "fullchain.pem" "key.pem" "account_key.json" ]; | |
76 | domain = "db-1.immae.eu"; | |
77 | postRun = '' | |
78 | systemctl reload postgresql.service | |
79 | ''; | |
80 | }; | |
81 | ||
82 | system.activationScripts.postgresql = '' | |
83 | install -m 0755 -o postgres -g postgres -d /run/postgresql | |
84 | ''; | |
85 | ||
86 | # FIXME: initial sync | |
87 | services.postgresql = rec { | |
88 | enable = cfg.postgresql.enable; | |
89 | package = pkgs.postgresql; | |
90 | enableTCPIP = true; | |
91 | extraConfig = '' | |
92 | max_connections = 100 | |
93 | wal_level = logical | |
94 | shared_buffers = 128MB | |
95 | max_wal_size = 1GB | |
96 | min_wal_size = 80MB | |
97 | log_timezone = 'Europe/Paris' | |
98 | datestyle = 'iso, mdy' | |
99 | timezone = 'Europe/Paris' | |
100 | lc_messages = 'en_US.UTF-8' | |
101 | lc_monetary = 'en_US.UTF-8' | |
102 | lc_numeric = 'en_US.UTF-8' | |
103 | lc_time = 'en_US.UTF-8' | |
104 | default_text_search_config = 'pg_catalog.english' | |
105 | ssl = on | |
106 | ssl_cert_file = '/var/lib/acme/postgresql/fullchain.pem' | |
107 | ssl_key_file = '/var/lib/acme/postgresql/key.pem' | |
108 | ''; | |
109 | authentication = '' | |
110 | local all postgres ident | |
111 | local all all md5 | |
112 | hostssl all all samehost md5 | |
113 | hostssl all all 178.33.252.96/32 md5 | |
114 | hostssl all all 188.165.209.148/32 md5 | |
115 | hostssl all all all pam | |
116 | hostssl replication backup-1 2001:41d0:302:1100::9:e5a9/128 pam pamservice=postgresql_replication | |
117 | hostssl replication backup-1 54.37.151.137/32 pam pamservice=postgresql_replication | |
118 | ''; | |
119 | }; | |
120 | ||
121 | security.pam.services = let | |
122 | pam_ldap = pkgs.pam_ldap; | |
123 | pam_ldap_mysql = assert mylibs.checkEnv "NIXOPS_MYSQL_PAM_PASSWORD"; | |
124 | pkgs.writeText "mysql.conf" '' | |
125 | host ldap.immae.eu | |
126 | base dc=immae,dc=eu | |
127 | binddn cn=mysql,cn=pam,ou=services,dc=immae,dc=eu | |
128 | bindpw ${builtins.getEnv "NIXOPS_MYSQL_PAM_PASSWORD"} | |
129 | pam_filter memberOf=cn=users,cn=mysql,cn=pam,ou=services,dc=immae,dc=eu | |
130 | ''; | |
131 | pam_ldap_postgresql_replication = assert mylibs.checkEnv "NIXOPS_ELDIRON_LDAP_PASSWORD"; | |
132 | pkgs.writeText "postgresql.conf" '' | |
133 | host ldap.immae.eu | |
134 | base dc=immae,dc=eu | |
135 | binddn cn=eldiron,ou=hosts,dc=immae,dc=eu | |
136 | bindpw ${builtins.getEnv "NIXOPS_ELDIRON_LDAP_PASSWORD"} | |
137 | pam_login_attribute cn | |
138 | ''; | |
139 | in [ | |
140 | { | |
141 | name = "mysql"; | |
142 | text = '' | |
143 | # https://mariadb.com/kb/en/mariadb/pam-authentication-plugin/ | |
144 | auth required ${pam_ldap}/lib/security/pam_ldap.so config=${pam_ldap_mysql} | |
145 | account required ${pam_ldap}/lib/security/pam_ldap.so config=${pam_ldap_mysql} | |
146 | ''; | |
147 | } | |
148 | { | |
149 | name = "postgresql"; | |
150 | text = '' | |
151 | auth required ${pam_ldap}/lib/security/pam_ldap.so config=${pam_ldap_postgresql_replication} | |
152 | account required ${pam_ldap}/lib/security/pam_ldap.so config=${pam_ldap_postgresql_replication} | |
153 | ''; | |
154 | } | |
155 | { | |
156 | name = "postgresql_replication"; | |
157 | text = '' | |
158 | auth required ${pam_ldap}/lib/security/pam_ldap.so config=${pam_ldap_postgresql_replication} | |
159 | account required ${pam_ldap}/lib/security/pam_ldap.so config=${pam_ldap_postgresql_replication} | |
160 | ''; | |
161 | } | |
162 | ]; | |
163 | ||
164 | # FIXME: backup | |
165 | # Nextcloud: 14 | |
166 | # Mastodon: 13 | |
167 | # Mediagoblin: 12 | |
168 | services.redis = rec { | |
169 | enable = config.services.myDatabases.redis.enable; | |
170 | bind = "127.0.0.1"; | |
171 | unixSocket = "/run/redis/redis.sock"; | |
172 | extraConfig = '' | |
173 | unixsocketperm 777 | |
174 | maxclients 1024 | |
175 | ''; | |
176 | }; | |
177 | system.activationScripts.redis = '' | |
178 | mkdir -p /run/redis | |
179 | chown redis /run/redis | |
180 | ''; | |
181 | }; | |
182 | } |