Cacti

[TuxSax]

I think this juju charms are absolutely charming, and I wanted to try and submit my own.
I'm very new to this world and I believe there might be still some more work to do on this one, but I hope at the end we'll have a charming cacti!
Thanks,
TuxSax

[Marco Ceppi (marcoceppi)]

Hello TuxSax!

Thank you for submitting. Could you link your branch of the charm to this bug report? If it's not ready yet keep on working and when you're ready push up your work to lp:~YOUR_LP_USERNAME/charm/oneiric/cacti/trunk then link it so this bug report and add the "new-charm" tag. Otherwise link your current branch and add the "new-charm" tag and a Charmer will be by to give it a review!

[TuxSax (zivley)]

Hi Marco,
As I said, this is my first try, I'm not really experienced about using charms nor launchpad, I'm just trying to get into this while doing the best I can, I'd love someone to review my work and give me directions on how to fix problems, if any, and/or improve it.
Thanks!

[Clint Byrum (clint-fewbar)]

Hello zivley, welcome! And thanks for working on cacti, its a pretty cool platform. :)

I was taking a look at your charm, and I think you may have been confused by the way relations work.

It looks like you copied the mysql charm's db-relation-joined. This is not really the way that charms work. That bit of work is done inside the mysql charm, and your charm doesn't need to express any of those details. What it needs to do is simply receive the user/password/host/dbname of the mysql server in db-relation-changed, and then place those things in the local cacti configuration file so that cacti can access the database.

One thing to watch out for, it looks like cacti depends on dbconfig-common. This is the package that pops up interactive screens to ask you for database connection info. The simplest way to handle this is probably to disable it with debconf before the apt-get install:

debconf-set-selections <<<EOF
cacti cacti/dbconfig-install boolean false
EOF

That will allow you to generate the cacti config yourself.

[TuxSax (zivley)]

I think I have a misconception about EVERYTHING, related to how juju works, I guess I'll need someone to help me out with this.
Also, how can I test run this if I don't have access to any cloud? Could I run it on my local PC somehow?

[Robbie Williamson (robbiew)]

@TuxSax: Yep...you can use the LXC provider. It's really easy to do, just follow the instructions listed under "For Attendees" here: https://juju.ubuntu.com/CharmSchool

[Jorge Castro (jorge)]

Hi TuxSax, when you're ready for a review please subscribe "charmers" to this bug! Thanks!