Preparing the PEM Server for pgBouncer Connections v8

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You must configure the PEM database server to accept connections from pgBouncer; the following example demonstrates the steps required to prepare the PEM database server.

Create a dedicated user named pgbouncer on the PEM database server. For example:
```
pem=# CREATE USER pgbouncer PASSWORD 'ANY_PASSWORD' LOGIN;
CREATE ROLE
```
Create a user named pem_admin1 (a non-super user) with pem_admin and pem_agent_pool role membership on the PEM database server. For example:
```
pem=# CREATE USER pem_admin1 PASSWORD 'ANY_PASSWORD' LOGIN CREATEROLE;
CREATE ROLE
pem=# GRANT pem_admin, pem_agent_pool TO pem_admin1;
GRANT ROLE
```

Grant CONNECT privilege to the pgbouncer user on the pem database. For example:

pem=# GRANT CONNECT ON DATABASE pem TO pgbouncer ;GRANT USAGE ON SCHEMA pem TO pgbouncer;
GRANT

Grant USAGE privilege to the pgbouncer user for the pem schema on the pem database. For example:
```
pem=# GRANT USAGE ON SCHEMA pem TO pgbouncer;
GRANT
```
Grant EXECUTE privilege to the pgbouncer user on the pem.get_agent_pool_auth(text) function in the pem database. For example:
```
pem=# GRANT EXECUTE ON FUNCTION pem.get_agent_pool_auth(text) TO pgbouncer;
GRANT
```
Use the pem.create_proxy_agent_user(varchar) function to create a user named pem_agent_user1 on the PEM database server. The function will create a user with the same name with a random password, and grant pem_agent and pem_agent_pool roles to the user. This allows pgBouncer to use a proxy user on behalf of the agent. For example:
```
pem=# SELECT pem.create_proxy_agent_user('pem_agent_user1');
create_proxy_agent_user
-------------------------
 (1 row)
```
Add the following entries to the start of the pg_hba.conf file of the PEM database server; this will allow pgBouncer user to connect to the pem database using the md5 authentication method. For example:
```
# Allow the PEM agent proxy user (used by
# pgbouncer) to connect the to PEM server using
# md5

local pem pgbouncer,pem_admin1 md5
```

After configuring the PEM server, you should configure pgBouncer.

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Connecting PEM to pgBouncer

Configuring pgBouncer

Preparing the PEM Server for pgBouncer Connections v8

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