diff options
Diffstat (limited to 'modules/private/databases/postgresql.nix')
-rw-r--r-- | modules/private/databases/postgresql.nix | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/modules/private/databases/postgresql.nix b/modules/private/databases/postgresql.nix deleted file mode 100644 index a6c4cc9..0000000 --- a/modules/private/databases/postgresql.nix +++ /dev/null | |||
@@ -1,228 +0,0 @@ | |||
1 | { lib, pkgs, config, ... }: | ||
2 | let | ||
3 | cfg = config.myServices.databases.postgresql; | ||
4 | in { | ||
5 | options.myServices.databases = { | ||
6 | postgresql = { | ||
7 | enable = lib.mkOption { | ||
8 | default = false; | ||
9 | example = true; | ||
10 | description = "Whether to enable postgresql database"; | ||
11 | type = lib.types.bool; | ||
12 | }; | ||
13 | package = lib.mkOption { | ||
14 | type = lib.types.package; | ||
15 | default = pkgs.postgresql; | ||
16 | description = '' | ||
17 | Postgresql package to use. | ||
18 | ''; | ||
19 | }; | ||
20 | ldapConfig = lib.mkOption { | ||
21 | description = "LDAP configuration to allow PAM identification via LDAP"; | ||
22 | type = lib.types.submodule { | ||
23 | options = { | ||
24 | host = lib.mkOption { type = lib.types.str; }; | ||
25 | base = lib.mkOption { type = lib.types.str; }; | ||
26 | dn = lib.mkOption { type = lib.types.str; }; | ||
27 | password = lib.mkOption { type = lib.types.str; }; | ||
28 | filter = lib.mkOption { type = lib.types.str; }; | ||
29 | }; | ||
30 | }; | ||
31 | }; | ||
32 | replicationLdapConfig = lib.mkOption { | ||
33 | description = "LDAP configuration to allow replication"; | ||
34 | type = lib.types.submodule { | ||
35 | options = { | ||
36 | host = lib.mkOption { type = lib.types.str; }; | ||
37 | base = lib.mkOption { type = lib.types.str; }; | ||
38 | dn = lib.mkOption { type = lib.types.str; }; | ||
39 | password = lib.mkOption { type = lib.types.str; }; | ||
40 | }; | ||
41 | }; | ||
42 | }; | ||
43 | authorizedHosts = lib.mkOption { | ||
44 | default = {}; | ||
45 | description = "Hosts to allow connections from"; | ||
46 | type = lib.types.attrsOf (lib.types.listOf (lib.types.submodule { | ||
47 | options = { | ||
48 | method = lib.mkOption { | ||
49 | default = "md5"; | ||
50 | type = lib.types.str; | ||
51 | }; | ||
52 | username = lib.mkOption { | ||
53 | default = "all"; | ||
54 | type = lib.types.str; | ||
55 | }; | ||
56 | database = lib.mkOption { | ||
57 | default = "all"; | ||
58 | type = lib.types.str; | ||
59 | }; | ||
60 | ip4 = lib.mkOption { | ||
61 | default = []; | ||
62 | type = lib.types.listOf lib.types.str; | ||
63 | }; | ||
64 | ip6 = lib.mkOption { | ||
65 | default = []; | ||
66 | type = lib.types.listOf lib.types.str; | ||
67 | }; | ||
68 | }; | ||
69 | })); | ||
70 | }; | ||
71 | replicationHosts = lib.mkOption { | ||
72 | default = {}; | ||
73 | description = "Hosts to allow replication from"; | ||
74 | type = lib.types.attrsOf (lib.types.submodule { | ||
75 | options = { | ||
76 | ip4 = lib.mkOption { | ||
77 | type = lib.types.listOf lib.types.str; | ||
78 | }; | ||
79 | ip6 = lib.mkOption { | ||
80 | type = lib.types.listOf lib.types.str; | ||
81 | }; | ||
82 | }; | ||
83 | }); | ||
84 | }; | ||
85 | # Output variables | ||
86 | socketsDir = lib.mkOption { | ||
87 | type = lib.types.path; | ||
88 | default = "/run/postgresql"; | ||
89 | description = '' | ||
90 | The directory where Postgresql puts sockets. | ||
91 | ''; | ||
92 | readOnly = true; | ||
93 | }; | ||
94 | }; | ||
95 | }; | ||
96 | |||
97 | config = lib.mkIf cfg.enable { | ||
98 | networking.firewall.allowedTCPPorts = [ 5432 ]; | ||
99 | |||
100 | security.acme.certs."postgresql" = config.myServices.databasesCerts // { | ||
101 | user = "postgres"; | ||
102 | group = "postgres"; | ||
103 | domain = "db-1.immae.eu"; | ||
104 | postRun = '' | ||
105 | systemctl reload postgresql.service | ||
106 | ''; | ||
107 | }; | ||
108 | |||
109 | systemd.services.postgresql.serviceConfig = { | ||
110 | SupplementaryGroups = "keys"; | ||
111 | }; | ||
112 | systemd.services.postgresql.postStart = lib.mkAfter '' | ||
113 | # This line is already defined in 19.09 | ||
114 | PSQL="${pkgs.sudo}/bin/sudo -u postgres psql --port=5432" | ||
115 | |||
116 | ${builtins.concatStringsSep "\n" (lib.mapAttrsToList (role: _: '' | ||
117 | $PSQL -tAc "SELECT 1 FROM pg_roles WHERE rolname='${role}'" \ | ||
118 | | grep -q 1 \ | ||
119 | || $PSQL -tAc 'CREATE USER "${role}" WITH REPLICATION' | ||
120 | '') cfg.replicationHosts)} | ||
121 | |||
122 | ${builtins.concatStringsSep "\n" (lib.mapAttrsToList (role: _: | ||
123 | let | ||
124 | sname = builtins.replaceStrings ["-"] ["_"] role; | ||
125 | in | ||
126 | '' | ||
127 | $PSQL -tAc "SELECT 1 FROM pg_replication_slots WHERE slot_name='${sname}'" \ | ||
128 | | grep -q 1 \ | ||
129 | || $PSQL -tAc "SELECT * FROM pg_create_physical_replication_slot('${sname}')" | ||
130 | '') cfg.replicationHosts)} | ||
131 | ''; | ||
132 | |||
133 | services.postgresql = { | ||
134 | enable = true; | ||
135 | package = cfg.package; | ||
136 | enableTCPIP = true; | ||
137 | extraConfig = '' | ||
138 | max_connections = 100 | ||
139 | wal_level = logical | ||
140 | shared_buffers = 512MB | ||
141 | work_mem = 10MB | ||
142 | max_wal_size = 1GB | ||
143 | min_wal_size = 80MB | ||
144 | log_timezone = 'Europe/Paris' | ||
145 | datestyle = 'iso, mdy' | ||
146 | timezone = 'Europe/Paris' | ||
147 | lc_messages = 'en_US.UTF-8' | ||
148 | lc_monetary = 'en_US.UTF-8' | ||
149 | lc_numeric = 'en_US.UTF-8' | ||
150 | lc_time = 'en_US.UTF-8' | ||
151 | default_text_search_config = 'pg_catalog.english' | ||
152 | # this introduces a small delay before storing on disk, but | ||
153 | # makes it order of magnitudes quicker | ||
154 | synchronous_commit = off | ||
155 | ssl = on | ||
156 | ssl_cert_file = '${config.security.acme.certs.postgresql.directory}/fullchain.pem' | ||
157 | ssl_key_file = '${config.security.acme.certs.postgresql.directory}/key.pem' | ||
158 | ''; | ||
159 | authentication = let | ||
160 | hosts = builtins.concatStringsSep "\n" ( | ||
161 | lib.lists.flatten (lib.mapAttrsToList (k: vs: map (v: | ||
162 | map (ip6: "hostssl ${v.database} ${v.username} ${ip6}/128 ${v.method}") v.ip6 | ||
163 | ++ map (ip4: "hostssl ${v.database} ${v.username} ${ip4}/32 ${v.method}") v.ip4 | ||
164 | ) vs) cfg.authorizedHosts | ||
165 | )); | ||
166 | replication = builtins.concatStringsSep "\n" ( | ||
167 | lib.lists.flatten (lib.mapAttrsToList (k: v: | ||
168 | map (ip6: "hostssl replication ${k} ${ip6}/128 pam pamservice=postgresql_replication") v.ip6 | ||
169 | ++ map (ip4: "hostssl replication ${k} ${ip4}/32 pam pamservice=postgresql_replication") v.ip4 | ||
170 | ) cfg.replicationHosts | ||
171 | )); | ||
172 | in '' | ||
173 | local all postgres ident | ||
174 | local all all md5 | ||
175 | ${hosts} | ||
176 | hostssl all all all pam | ||
177 | ${replication} | ||
178 | ''; | ||
179 | }; | ||
180 | |||
181 | secrets.keys = { | ||
182 | "postgresql/pam" = { | ||
183 | permissions = "0400"; | ||
184 | group = "postgres"; | ||
185 | user = "postgres"; | ||
186 | text = with cfg.ldapConfig; '' | ||
187 | host ${host} | ||
188 | base ${base} | ||
189 | binddn ${dn} | ||
190 | bindpw ${password} | ||
191 | pam_filter ${filter} | ||
192 | ssl start_tls | ||
193 | ''; | ||
194 | }; | ||
195 | "postgresql/pam_replication" = { | ||
196 | permissions = "0400"; | ||
197 | group = "postgres"; | ||
198 | user = "postgres"; | ||
199 | text = with cfg.replicationLdapConfig; '' | ||
200 | host ${host} | ||
201 | base ${base} | ||
202 | binddn ${dn} | ||
203 | bindpw ${password} | ||
204 | pam_login_attribute cn | ||
205 | ssl start_tls | ||
206 | ''; | ||
207 | }; | ||
208 | }; | ||
209 | |||
210 | security.pam.services = let | ||
211 | pam_ldap = "${pkgs.pam_ldap}/lib/security/pam_ldap.so"; | ||
212 | in { | ||
213 | postgresql = { | ||
214 | text = '' | ||
215 | auth required ${pam_ldap} config=${config.secrets.fullPaths."postgresql/pam"} | ||
216 | account required ${pam_ldap} config=${config.secrets.fullPaths."postgresql/pam"} | ||
217 | ''; | ||
218 | }; | ||
219 | postgresql_replication = { | ||
220 | text = '' | ||
221 | auth required ${pam_ldap} config=${config.secrets.fullPaths."postgresql/pam_replication"} | ||
222 | account required ${pam_ldap} config=${config.secrets.fullPaths."postgresql/pam_replication"} | ||
223 | ''; | ||
224 | }; | ||
225 | }; | ||
226 | }; | ||
227 | } | ||
228 | |||