Implement trust authentication

Author: AndrewJackson2020

.circleci/pgcat.toml

@@ -49,6 +49,7 @@ tls_private_key = ".circleci/server.key"
 # Connecting to that database allows running commands like `SHOW POOLS`, `SHOW DATABASES`, etc..
 admin_username = "admin_user"
 admin_password = "admin_pass"
+admin_auth_type = "md5"
 
 # pool
 # configs are structured as pool.<pool_name>
@@ -98,6 +99,7 @@ sharding_function = "pg_bigint_hash"
 [pools.sharded_db.users.0]
 username = "sharding_user"
 password = "sharding_user"
+auth_type = "md5"
 # Maximum number of server connections that can be established for this user
 # The maximum number of connection from a single Pgcat process to any database in the cluster
 # is the sum of pool_size across all users.
@@ -107,6 +109,7 @@ statement_timeout = 0
 [pools.sharded_db.users.1]
 username = "other_user"
 password = "other_user"
+auth_type = "md5"
 pool_size = 21
 statement_timeout = 30000
 
@@ -147,6 +150,7 @@ prepared_statements_cache_size = 500
 [pools.simple_db.users.0]
 username = "simple_user"
 password = "simple_user"
+auth_type = "md5"
 pool_size = 5
 statement_timeout = 30000
 

.circleci/pgcat_trust.toml

@@ -0,0 +1,22 @@
+
+[general]
+
+host = "0.0.0.0"
+port = 6432
+admin_username = "admin_user"
+admin_password = ""
+admin_auth_type = "trust"
+
+[pools.sharded_db.users.0]
+username = "sharding_user"
+password = "sharding_user"
+auth_type = "trust"
+pool_size = 10
+min_pool_size = 1
+pool_mode = "transaction"
+
+[pools.sharded_db.shards.0]
+servers = [
+  [ "127.0.0.1", 5432, "primary" ],
+]
+database = "shard0"