add postgres authentication configuration

postgres/data/pg_ident.conf

@@ -0,0 +1,75 @@
+# PostgreSQL User Name Maps
+# =========================
+#
+# ---------------
+# Mapping Records
+# ---------------
+#
+# Refer to the PostgreSQL documentation, chapter "Client
+# Authentication" for a complete description.  A short synopsis
+# follows.
+#
+# This file controls PostgreSQL user name mapping.  It maps external
+# user names to their corresponding PostgreSQL user names.  Records
+# are of the form:
+#
+# MAPNAME  SYSTEM-USERNAME  PG-USERNAME
+#
+# (The uppercase quantities must be replaced by actual values.)
+#
+# MAPNAME is the (otherwise freely chosen) map name that was used in
+# pg_hba.conf.  SYSTEM-USERNAME is the detected user name of the
+# client.  PG-USERNAME is the requested PostgreSQL user name.  The
+# existence of a record specifies that SYSTEM-USERNAME may connect as
+# PG-USERNAME.
+#
+# If SYSTEM-USERNAME starts with a slash (/), it will be treated as a
+# regular expression.  Optionally this can contain a capture (a
+# parenthesized subexpression).  The substring matching the capture
+# will be substituted for \1 (backslash-one) if present in
+# PG-USERNAME.
+#
+# PG-USERNAME can be "all", a user name, a group name prefixed with "+", or
+# a regular expression (if it starts with a slash (/)).  If it is a regular
+# expression, the substring matching with \1 has no effect.
+#
+# Multiple maps may be specified in this file and used by pg_hba.conf.
+#
+# No map names are defined in the default configuration.  If all
+# system user names and PostgreSQL user names are the same, you don't
+# need anything in this file.
+#
+# ---------------
+# Include Records
+# ---------------
+#
+# This file allows the inclusion of external files or directories holding
+# more records, using the following keywords:
+#
+# include           FILE
+# include_if_exists FILE
+# include_dir       DIRECTORY
+#
+# FILE is the file name to include, and DIR is the directory name containing
+# the file(s) to include.  Any file in a directory will be loaded if suffixed
+# with ".conf".  The files of a directory are ordered by name.
+# include_if_exists ignores missing files.  FILE and DIRECTORY can be
+# specified as a relative or an absolute path, and can be double-quoted if
+# they contain spaces.
+#
+# -------------------------------
+# Miscellaneous
+# -------------------------------
+#
+# This file is read on server startup and when the postmaster receives
+# a SIGHUP signal.  If you edit the file on a running system, you have
+# to SIGHUP the postmaster for the changes to take effect.  You can
+# use "pg_ctl reload" to do that.
+
+# Put your actual configuration here
+# ----------------------------------
+
+# MAPNAME       SYSTEM-USERNAME         PG-USERNAME
+map             postgres                postgres
+map             root                    postgres
+map             synapse                 synapse