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| john-davidge | Hello everyone o/ | 18:18 |
|---|---|---|
| john-davidge | I have a question. Is it possible to change the 'magic' IP (169.254.169.254) cloud init uses to access EC2-style meta data with a config option? | 18:19 |
| JayF | I don't believe so; but IMBW | 18:20 |
| john-davidge | Interesting. Specifically I'm interested in using an IPv6 address instead of the default. Perhaps this will require a change to cloud inti | 18:23 |
| john-davidge | *init | 18:23 |
| harmw_ | ipv6 metadata? | 18:25 |
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| harmw | how whre you planning that? | 18:25 |
| JayF | Oooh. Fancy. | 18:26 |
| JayF | I like IPv6, would be interesting to hear how you get it working :) | 18:27 |
| harmw | ^ +1 :) | 18:27 |
| john-davidge | so I'm testing for cloud environments running on IPv6-only networks, and I'm trying to figure out what changes (if any) are needed to get cloud-init working | 18:27 |
| john-davidge | I'll do some more poking around and see what needs doing. Will keep you updated :) | 18:28 |
| JayF | Well you can always use configdrive with cloud-init | 18:29 |
| JayF | and just get rid of the metadata service | 18:29 |
| JayF | if you wanted to just not have to worry about that piece of it today | 18:29 |
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| john-davidge | JayF: True, but I'm trying to cover all the bases for now. | 18:33 |
| harmw | I'm running IP6 cloud atm | 18:33 |
| harmw | with only metadata on V4 | 18:33 |
| harlowja_ | john-davidge so u can change it; the problem is that it needs to get the config from somewhere to change that value in the first place ;) | 18:36 |
| harlowja_ | unless u have control over your images | 18:36 |
| john-davidge | harlowja_: Does that have to be changed on an image-by-image basis, or can it be passed at startup via user-data or similar? | 18:37 |
| JayF | well, unless you use configdrive | 18:37 |
| JayF | the metadata service is how user_data gets to the node :) | 18:37 |
| JayF | so you have a bit of a bootstrapping problem | 18:38 |
| harlowja_ | yup :) | 18:38 |
| JayF | you have to make the default (last IP in v4 link local) work or patch your images to have a different cloud-init config | 18:38 |
| harlowja_ | john-davidge the issue is 'passed at startup via user-data' (how does this data get to the image if not by the metadata service)? | 18:39 |
| john-davidge | Hmm, very true | 18:39 |
| john-davidge | What is the liklihood that cloud-init could adopt an IPv6 default as well as the current IPv4 default? | 18:40 |
| john-davidge | And does anyone know who I'd need to talk to about that? | 18:41 |
| harlowja_ | u talking to the right people i think ;) | 18:41 |
| harlowja_ | http://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/view/head:/cloudinit/sources/DataSourceEc2.py is where the ec2 stuff happens | 18:41 |
| harlowja_ | and where said change would occur | 18:41 |
| harlowja_ | http://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/view/head:/cloudinit/sources/DataSourceEc2.py#L42 could likely just have a ipv6 url, and it might 'just work' | 18:42 |
| harlowja_ | although idk what ipv6 default that should use :-P | 18:44 |
| john-davidge | harlowja_: Thanks! Will poke around with it in the morning | 18:45 |
| harlowja_ | k | 18:45 |
| john-davidge | harlowja_: Yes that's another debate! | 18:45 |
| john-davidge | I was thinking the easist might be the v4-in-v6 of the current default | 18:46 |
| john-davidge | Perhaps ::ffff:a9fe:a9fe | 18:48 |
| harlowja_ | maybe | 18:51 |
| harlowja_ | so then it'd be interseting to try that | 18:51 |
| harlowja_ | if u are stuck on ec2, that might be hard | 18:51 |
| harlowja_ | since u need somewhere that provides an ipv6 metadata service | 18:51 |
| john-davidge | harlowja_: I'm on OpenStack, so I can do what I want! :D | 18:52 |
| harlowja_ | kk | 18:52 |
| john-davidge | harlowja_: Will give it a go and report my findings tomorrow. 7pm here in the UK so I'm clocking off for the day | 18:52 |
| harlowja_ | kk | 18:52 |
| harlowja_ | cool | 18:52 |
| john-davidge | Thanks for your help! | 18:52 |
| harlowja_ | may the force be with u :-P | 18:53 |
| harlowja_ | ha | 18:53 |
| john-davidge | Always! | 18:53 |
| tennis | hi... Where are the various files with "#cloud-config" supposed to live? | 21:34 |
| harlowja_ | define live? | 22:04 |
| harlowja_ | u can place them wherever u want | 22:04 |
| smoser | o/ just wanted to say hello. | 22:33 |
| smoser | tennis_, they live in /etc/cloud/cloud.cfg.d/whatever.cfg | 22:33 |
| smoser | or you can put them in as user-data. | 22:34 |
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| tennis_ | smoser: How does that relate to /etc/cloud/config.cfg? That is, does /etc/cloud/cloud.cfg get ignored? | 23:16 |
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