[library] remote rsyslog should create deleted log dir

[Miroslav Anashkin]

Sometimes users perform manual remote log directory cleanup on the master node and remove the whole node log dirs.

It appeared, after such manual cleanup rsyslog from remote nodes fails to write logs to master node due to log directory absence.

Please add log dir existence check and make new dirs if necessary on rsyslog restart.

Steps to reproduce:

1. Deploy any simple configuration.

2. Go to master node and remove any node directory in /var/log/remote/
The node, you remove, should be up and running.

3. Restart rsyslog on the node, for which you just removed log directory.

Current behavior:
Rsyslog fails to write log files to not existing directory and continue storing logs locally.

Expected behavior:
Rsyslog should create not existing log directory on master node and continue storing logs on master node.

[Bogdan Dobrelya (bogdando)]

Probably, we should provide a remote logs directory tree maintenance script in fuel tools package. It should read nailgun DB and recreate missing directories, if any

[Bogdan Dobrelya (bogdando)]

A note. The catalog creation is managed by this code https://github.com/stackforge/fuel-web/blob/b18bd21c2a777c62d2bf0dfbf0674315438396d6/nailgun/nailgun/task/helpers.py#L61-L123

[Vladimir Sharshov (vsharshov)]

Feature, moved to 7.0

[Vladimir Sharshov (vsharshov)]

Moved to 7.0

[Alexander Kislitsky (akislitsky)]

We passed SCF in 8.0. Moving the bug to 9.0.