Add role "postgres"

host_vars/postgres.crypto-libertarian.com.yml

@@ -16,3 +16,34 @@ common__certbot__cert_domains:
   - 'postgres.crypto-libertarian.com'
 common__certbot__post_hook: null
 common__certbot__pre_hook: null
+
+postgres__hba:
+  - type: hostssl
+    database: matrix_synapse
+    user: matrix_synapse
+    address: '134.209.196.172/32'
+    method: md5
+
+  - type: hostssl
+    database: matrix_synapse
+    user: matrix_synapse
+    address: '2a03:b0c0:2:f0::142:3001/128'
+    method: md5
+
+  - type: hostssl
+    database: matrix_synapse
+    user: matrix_synapse
+    address: '10.133.8.214/32'
+    method: md5
+
+  - type: host
+    database: all
+    user: all
+    address: '0.0.0.0/0'
+    method: reject
+
+  - type: host
+    database: all
+    user: all
+    address: '::/0'
+    method: reject

playbooks/deploy/postgres.yml

@@ -7,3 +7,4 @@
       cache_valid_time: 86400
   roles:
     - kotovalexarian.common
+    - ../../roles/postgres

roles/postgres/defaults/main.yml

@@ -0,0 +1,2 @@
+---
+postgres__hba: []

roles/postgres/handlers/main.yml

@@ -0,0 +1,5 @@
+---
+- name: Restart Postgres
+  systemd:
+    name: postgresql@12-main
+    state: restarted

roles/postgres/tasks/main.yml

@@ -0,0 +1,14 @@
+---
+- name: Install system packages
+  apt:
+    name: postgresql
+  notify: Restart Postgres
+
+- name: Install pg_hba.conf
+  template:
+    src: '../templates/pg_hba.conf'
+    dest: '/etc/postgresql/12/main/pg_hba.conf'
+    mode: 'u=rw,g=r,o='
+    owner: postgres
+    group: postgres
+  notify: Restart Postgres

roles/postgres/templates/pg_hba.conf

@@ -0,0 +1,103 @@
+# PostgreSQL Client Authentication Configuration File
+# ===================================================
+#
+# Refer to the "Client Authentication" section in the PostgreSQL
+# documentation for a complete description of this file.  A short
+# synopsis follows.
+#
+# This file controls: which hosts are allowed to connect, how clients
+# are authenticated, which PostgreSQL user names they can use, which
+# databases they can access.  Records take one of these forms:
+#
+# local      DATABASE  USER  METHOD  [OPTIONS]
+# host       DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
+# hostssl    DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
+# hostnossl  DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
+#
+# (The uppercase items must be replaced by actual values.)
+#
+# The first field is the connection type: "local" is a Unix-domain
+# socket, "host" is either a plain or SSL-encrypted TCP/IP socket,
+# "hostssl" is an SSL-encrypted TCP/IP socket, and "hostnossl" is a
+# plain TCP/IP socket.
+#
+# DATABASE can be "all", "sameuser", "samerole", "replication", a
+# database name, or a comma-separated list thereof. The "all"
+# keyword does not match "replication". Access to replication
+# must be enabled in a separate record (see example below).
+#
+# USER can be "all", a user name, a group name prefixed with "+", or a
+# comma-separated list thereof.  In both the DATABASE and USER fields
+# you can also write a file name prefixed with "@" to include names
+# from a separate file.
+#
+# ADDRESS specifies the set of hosts the record matches.  It can be a
+# host name, or it is made up of an IP address and a CIDR mask that is
+# an integer (between 0 and 32 (IPv4) or 128 (IPv6) inclusive) that
+# specifies the number of significant bits in the mask.  A host name
+# that starts with a dot (.) matches a suffix of the actual host name.
+# Alternatively, you can write an IP address and netmask in separate
+# columns to specify the set of hosts.  Instead of a CIDR-address, you
+# can write "samehost" to match any of the server's own IP addresses,
+# or "samenet" to match any address in any subnet that the server is
+# directly connected to.
+#
+# METHOD can be "trust", "reject", "md5", "password", "scram-sha-256",
+# "gss", "sspi", "ident", "peer", "pam", "ldap", "radius" or "cert".
+# Note that "password" sends passwords in clear text; "md5" or
+# "scram-sha-256" are preferred since they send encrypted passwords.
+#
+# OPTIONS are a set of options for the authentication in the format
+# NAME=VALUE.  The available options depend on the different
+# authentication methods -- refer to the "Client Authentication"
+# section in the documentation for a list of which options are
+# available for which authentication methods.
+#
+# Database and user names containing spaces, commas, quotes and other
+# special characters must be quoted.  Quoting one of the keywords
+# "all", "sameuser", "samerole" or "replication" makes the name lose
+# its special character, and just match a database or username with
+# that name.
+#
+# This file is read on server startup and when the server receives a
+# SIGHUP signal.  If you edit the file on a running system, you have to
+# SIGHUP the server for the changes to take effect, run "pg_ctl reload",
+# or execute "SELECT pg_reload_conf()".
+#
+# Put your actual configuration here
+# ----------------------------------
+#
+# If you want to allow non-local connections, you need to add more
+# "host" records.  In that case you will also need to make PostgreSQL
+# listen on a non-local interface via the listen_addresses
+# configuration parameter, or via the -i or -h command line switches.
+
+
+
+
+# DO NOT DISABLE!
+# If you change this first entry you will need to make sure that the
+# database superuser can access the database using some other method.
+# Noninteractive access to all databases is required during automatic
+# maintenance (custom daily cronjobs, replication, and similar tasks).
+#
+# Database administrative login by Unix domain socket
+local   all             postgres                                     peer
+
+# TYPE  DATABASE        USER            ADDRESS                      METHOD
+
+# "local" is for Unix domain socket connections only
+local   all             all                                          peer
+# IPv4 local connections:
+host    all             all             127.0.0.1/32                 md5
+# IPv6 local connections:
+host    all             all             ::1/128                      md5
+# Allow replication connections from localhost, by a user with the
+# replication privilege.
+local   replication     all                                          peer
+host    replication     all             127.0.0.1/32                 md5
+host    replication     all             ::1/128                      md5
+# Additional rules:
+{% for item in postgres__hba %}
+{{ item.type }} {{ item.database }} {{ item.user }} {{ item.address }} {{ item.method }}
+{% endfor %}