It seems Influxdb does not provide packages for Fedora. Thus the package repository URL needs to be hard coded to RHEL7 if run from Fedora. This change recognises we are on Fedora, and fakes RHEL release to be 7 so URL gets right.
Fedora uses dnf instead of yum. If this change is not made, playbook fails with:
fatal: [xx.yy]: FAILED! => {"changed": false, "msg": "The Python 2 yum module is needed for this module. If you require Python 3 support use the `dnf` Ansible module instead."}
- Added some commenting inside of defaults to clarify which variables
adjust which files
- Split up the role taking items out of main.yml in tasks. This is to
improve clarity of what each bit of Ansible code is doing.
- Tags were defined for each and every task within the Debian.yml moved
ths up to main.yml so they don't need repeating every task adding
clutter.
- Added some extra default plugins, as of current release version these
are now within the default configuration but were missing from this
role.
- Added some commenting inside the templates and the top of some tasks
to clarify where the templated file was coming from.
Systems like Amazon Linux are from the RedHat OS family but have a
specific release versions notation. Influxdata does not always provide a
yum repository with these versions, so it should be something to override
in order to install telegraf from a different release version path.
For instance, Influxdata currently provides telegraf for both RHEL
versions 6 and 2016.09 with packages being the same (same checksums).
This is because of Amazon Linux 2016.09 being a RHEL version 6.
However, now Amazon Linux 2017.09 is out, still being a RHEL 6 but
Influxdata does not provide a 2017.09 release version path so we cannon
install telegraf on it. Overriding the release version to 6 or 2016.09
will allow to install.
