问题
I would like to write an Ansible playbook which tries to handle some postgresql command. I did earlier a similar playbook, but in that case Postgresql didn't need password.
I thought I could use my old playbook, which works fine, but I was wrong. This database requires password. I know that Ansible has postgresql support which is fine (postgresql_db, postgresql_ext, postgresql_lang, postgresql_privs, postgresql_user) and with them I can do half of the work and it handles password just fine, BUT I can't figure out how to send a simple sql commands to my database. In my old playbook I used "shell" command to send those requests (eg: shell: "psql {{ databases.name }} --username {{ admin_user}} -c 'DROP SCHEMA public CASCADE;'").
And also I would like to upload a db_dump. Earlier I used psql for this, but this new database requires password...
Can someone give me tips how to handle this situation? I'm using ansible 2.0 and the database can be reached only from a specific remote host.
Thanks
回答1:
Create a .pgpass file at a non-default location as part of your playbook, and put the password there. Specify its location in the PGPASSFILE environment variable. Delete it once it's no longer needed.
See libpq environment variables.
Alternately I think you can use a connection string to connect and specify the password as part of the connection string, e.g.
'dbname=mydb user=fred password=borkbork'
(untested)
回答2:
You can use a new role that provides four new modules:
- postgresql_table: ensure that a table is present (or absent) in database
- postgresql_row: ensure that a row is present (or absent) in a table
- postgresql_query: execute an arbitrary query in database and return results
- postgresql_command: execute an arbitrary query in database
Look here for docs: https://github.com/rtshome/ansible_pgsql
来源：https://stackoverflow.com/questions/32864556/run-a-postgresql-command-with-ansible-playbook-postgresql-requires-password