Hi David, the best way to do this would be to make the role aware of the fact that there may be more than one database installed on it, so that the variables in the group would then become an array:
# group_vars/foo.yml: databases: - name: db01 user: db_user1 password: xxxxxx - name: db02 user: db_user2 password: xxxxxx ... And then you would loop over this list in your role tasks. Hope that helps! On Thu, Nov 20, 2014 at 5:30 AM, David Fritzsche < [email protected]> wrote: > Hi all, > > in the setup I would like to automate with ansible I have mostly servers > with > distinct purposes and on each server they may be several distinct > services/components. The plan is to use ansible to have the configuration > of > all these servers in one place and to enable us to setup staging > environments > for the new software we develop and for new releases of the software stack > we > use (mariadb, nginx, ...) > > Since we want to be able to rearrange the "services" (i.e., a database or a > FastCGI application) independently to different hosts I started to organize > everything into ansible groups, i.e., I have groups like > > - database_01 > - database_02 > - ... > - fcgi_01 > - fcgi_02 > - ... > > for each group I set variables in group_vars/<group-name>, which looks a > little bit like the following: > > group_vars/database_01:: > --- > database_name: db01 > database_user: user01 > database_password: xxxxx > .... > > and then I have defined roles so that I can use very simple playbooks to > roll > this setup out: > > database_01.yml:: > --- > - hosts: database_01 > roles: [ database_role ] > > > Now for the tricky part: The way ansible works this can not work if I have > two > databases on the same host. Then I would have two database groups (e.g., > database_01 and database_01) that contain the same host > > hosts:: > [database_01] > db_host > > [database_02] > db_host > > and the playbook would load for host db_host the variables of all groups > that > include db_host, i.e, the variables of both database_01 and database_02 are > loaded and I do not install the correct database when running the playbook. > > > Is there some best practice how to configure small "components" (databases, > fastcgi applications, ...) so that I can separate the configuration of the > component from the configuration where the component is going to be > installed > and I can have multiple "components" of the same kind on the same host? > > -- > You received this message because you are subscribed to the Google Groups > "Ansible Project" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/ansible-project/546DD0E0.9070207%40mvua.de > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Ansible Project" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/CAMFyvFiBJy%2BvD90h_9zTBCqLxaXd6qV76LUnavdq9XqdW68hGQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
