| bradm | are there any decent docs about how to write preseed files and modify them for maas? | 00:05 |
|---|---|---|
| bigjools | bradm: it's not a maas-specific thing really | 00:06 |
| bigjools | https://help.ubuntu.com/12.04/installation-guide/i386/preseed-intro.html | 00:06 |
| bradm | bigjools: I'm talking about what you can do inside the {{ }} tags | 00:06 |
| bigjools | that's a templating language called Tempita: http://pythonpaste.org/tempita/ | 00:07 |
| bigjools | http://pythonpaste.org/tempita/#the-language specifically | 00:07 |
| bradm | bigjools: and how do we know what variables we have access to in there? apparently I want to access node.tags.all(), but how would I find that out? | 00:08 |
| bigjools | reading the code, it's not documented :( | 00:08 |
| bradm | I think what I want is {{ if 'nova-compute' in node.tags.all() }} | 00:08 |
| bradm | but its a guess based on the examples | 00:09 |
| bigjools | should work | 00:09 |
| bradm | cool, thanks | 00:11 |
| bradm | is there any way to either see the preseed that's used by maas for a node, or maybe to capture the output from syslog of the install? | 02:20 |
| bigjools | bradm: yeah there's a preview on the node page | 02:20 |
| bradm | bigjools: aha, sweet. | 02:21 |
| bradm | oh, haha, thats what happens when you make assumptions about tag names | 02:22 |
| * bigjools gets annoyed with whatever is stealing the ctrl-space shortcut on the desktop | 02:28 | |
| bigjools | no, I don't ever want to change my keyboard layout once I set it, Unity | 02:28 |
| === mwhudson is now known as zz_mwhudson | ||
| roaksoax | bigjools: howdy!! so maas was broken in latest trunk and nobody noticed | 03:50 |
| roaksoax | :) | 03:50 |
| roaksoax | bigjools: fixes were really packaging branch but if I hadn't tested, nobody would have noticed :) | 03:51 |
| bradm | ugh, debugging preseeds is time consuming | 03:53 |
| roaksoax | bigjools: so something changed on how maas binds ports? or how pserv does? cause now I had to use authbind for pserv too when before wasn't needed | 03:54 |
| roaksoax | bigjools: uploaded! | 03:57 |
| bradm | bigjools: any hints on what else it could be to match a tag? if "compute" in node.tags.all() doesn't seem to do it | 04:03 |
| bradm | ah, node.tags.all() is empty in the preseed | 04:33 |
| bradm | and the node definately has a tag | 04:33 |
| bradm | do I need to be using the curtin installer or something? | 04:56 |
| bigjools | roaksoax: it's a *really* good idea to wait for a successful qa lab run before uploading anything | 05:43 |
| bigjools | bradm: it will be returning tag records, not tags, so it will need something like: | 05:44 |
| bigjools | tag.name for tag in node.tags.all() | 05:44 |
| bigjools | you might need :py mode, but see if it works | 05:45 |
| bradm | bigjools: can I assign that to a variable or something? | 05:47 |
| bigjools | yeah use a define block | 05:47 |
| bradm | bigjools: so a python define block to create a function? like {{py: def tagsname(n): return tag.name for tag in node.tags.all() }} or something? | 05:53 |
| bigjools | no | 05:54 |
| bigjools | hang on | 05:54 |
| bradm | bigjools: or the {{def tagsname}} stuff? | 05:54 |
| bigjools | bradm: http://pythonpaste.org/tempita/#inherit-def | 05:55 |
| bigjools | you can set python vars as well | 05:56 |
| bradm | bigjools: hmm, I'll play about with it and see what I can do | 05:58 |
| bradm | bigjools: I think this is a really important idiom for tweaking preseeds based on tags | 05:58 |
| bigjools | bradm: yes, sounds reasonable | 06:05 |
| bradm | bigjools: clearly I suck at this :) | 06:12 |
| bradm | https://pastebin.canonical.com/104959/ prints out the tags on from the node | 06:13 |
| bigjools | use public pastebin if you can | 06:24 |
| bigjools | but glad it worked for you | 06:25 |
| bradm | yeah, just need to figure out how to turn that into an if statement now | 06:25 |
| bigjools | {{py: if "mytag" in [tag.name for tag in node.tags.all()] }} | 06:33 |
| bradm | bigjools: https://pastebin.canonical.com/104960/ | 06:33 |
| bigjools | use public pastebin if you can | 06:33 |
| bigjools | please | 06:33 |
| bradm | oh, bah | 06:33 |
| bradm | http://pastebin.ubuntu.com/6947342/ - gives me a function I can use later like - if 'mytag' in tagnames(node) | 06:34 |
| bradm | bigjools: hrm, yours doesn't work for me | 06:35 |
| bigjools | it was untested :) | 06:35 |
| bigjools | if yours works then fine | 06:36 |
| bradm | yours is nicer in terms of using less space | 06:36 |
| bradm | http://pastebin.ubuntu.com/6947349/ <- what I'm trying to do - I can have different late_commands based on tags | 06:37 |
| bradm | I suspect its the endif etc thats there | 06:37 |
| bradm | bigjools: thanks for the help, this should work out nicely | 06:41 |
| === zz_mwhudson is now known as mwhudson | ||
| bigjools | bradm: np | 06:53 |
| bradm | I don't like maintaining multiple sets of data with most of it duplicated, this will fix that | 06:54 |
| === mwhudson is now known as zz_mwhudson | ||
| === CyberJacob|Away is now known as CyberJacob | ||
| === jtv1 is now known as jtv | ||
| * jtv just wasted a few hours trying to get his escaping test for a data display working, only to realise the data got neatly un-escaped as part of the extraction from HTML in the test itself. | 07:24 | |
| rvba | I'm still getting 'AttributeError: class Factory has no attribute 'forProtocol'' when running 'make run+webapp' on trunk. (http://paste.ubuntu.com/6947733/) | 08:43 |
| rvba | Anyone else seeing this? | 08:43 |
| === CyberJacob is now known as CyberJacob|Away | ||
| rvba | bigjools: btw, about lp:~julian-edwards/maas/default-commissioning-series : we're now using Trusty for commissioning but we're still importing *all* the images. This is such a waste of bandwidth! | 09:30 |
| jtv | Should be an easy fix! | 09:31 |
| rvba | bigjools: fixing this will reduce the time it takes to import the images. | 09:48 |
| bigjools | rvba: +1! | 09:49 |
| bigjools | silly omission | 09:49 |
| bigjools | although we may need some more for deployment to other releases | 09:49 |
| rvba | bigjools: we need to keep all the deployment images indeed. But the ephemerals take much longer to import. | 09:51 |
| bigjools | yes | 09:51 |
| jtv | rvba: I've pushed a change that tests for, and fixes, the QuerySet nastiness. | 12:34 |
| rvba | jtv: cool, branch approved. | 12:35 |
| jtv | Thanks! | 12:39 |
| rvba | jtv: forgot to say, you might want to rename NetworkConnectNodesForm to re-use it verbatim in the method used to remove nodes. | 12:43 |
| jtv | Might, yes... small tweak to the help string I guess. | 12:44 |
| rvba | Right. | 12:45 |
| jtv | rvba, want to try this one? https://code.launchpad.net/~jtv/maas/sample-commissioning-data/+merge/206711 | 13:40 |
| rvba | jtv: sure | 13:46 |
| tomixxx3 | hi, does it make sense to set "ip address" equal to "router ip" in maas dashboard? | 13:55 |
| jtv | Hi tomixxx3. I think it does, if your maas server is also your gateway. But we don't really do anything with router_ip; it's just there so you can allocate nodes that are connected to a particular router. | 13:56 |
| tomixxx3 | k i will try - and change it also in "interfaces" | 13:57 |
| tomixxx3 | do i have to re-commission nodes after a change like this? | 13:58 |
| jtv | Which are you changing? IP address of a cluster interface? | 13:59 |
| tomixxx3 | no, gateway address of the network interface | 13:59 |
| jtv | Gateway address is different from router_ip... The gateway is configuration for MAAS's DHCP server. | 14:00 |
| jtv | Basically, that's "when I serve DHCP to a node, where should I tell the node its gateway is?" | 14:00 |
| jtv | If you're not managing DHCP on any interfaces, it's not going to matter. | 14:00 |
| tomixxx3 | puhh... ok, whre can i set the gateway-address then? | 14:01 |
| jtv | On the DHCP server. Are you running your own DHCP server for the nodes, or are you letting MAAS serve DHCP? | 14:01 |
| tomixxx3 | MAAS runs DHCP + DNS for the nodes | 14:02 |
| jtv | Ah OK | 14:02 |
| jtv | In that case you do need the gateway setting on the cluster interface. | 14:03 |
| jtv | I don't think you need re-commissioning after a change like that, per se, but the nodes may still have old information. | 14:03 |
| tomixxx3 | k, i should maybe reboot nodes then | 14:04 |
| jtv | That would make them pick up the settings, yes. | 14:04 |
| tomixxx3 | now is the question what is the gateway address | 14:04 |
| jtv | Whatever gateway the nodes should use when communicating to the internet. | 14:05 |
| tomixxx3 | my maas server has 2 interfaces. is it the ip of the interface which connects the maas-server to internet? | 14:05 |
| tomixxx3 | would make sense, not? ^^ | 14:05 |
| jtv | Slightly different: | 14:05 |
| jtv | the gateway setting tells DHCP clients: "if you have a packet that you want to send to a host that's not on the same network, send it to the gateway and it will forward your packet." | 14:06 |
| jtv | So if your maas server is also the gateway between the nodes and the internet, it should be the IP address of the interface that the nodes can see. | 14:07 |
| jtv | (I hope. Rusty!) | 14:07 |
| tomixxx3 | hmm, i have set the gateway equal to ip address, but now my maas-server lost its i-net connection | 14:08 |
| jtv | The _server_? | 14:09 |
| jtv | The gateway setting will only affect the nodes. | 14:09 |
| tomixxx3 | yes... | 14:09 |
| tomixxx3 | i swear | 14:09 |
| tomixxx3 | its the server | 14:09 |
| jtv | Are you sure you edited the cluster interface where you serve DHCP? | 14:09 |
| jtv | Or it could simply be unrelated... | 14:09 |
| tomixxx3 | i have changed "interfaces" file and i have changed cluster interface settings in maas dashboard | 14:10 |
| jtv | Ah, then your interfaces file may be broken. | 14:10 |
| jtv | You could try running "sudo ifup <interface>" in a shell (where <interface> is e.g. eth0 or eth1) | 14:10 |
| jtv | Just to see if there's an error... | 14:11 |
| tomixxx3 | ifup, ifdown works | 14:11 |
| jtv | Hmmm | 14:11 |
| tomixxx3 | i dont understand this | 14:12 |
| jtv | Neither do I! | 14:13 |
| tomixxx3 | i could try the ip of the other interface card as gateway | 14:15 |
| jtv | Well... gateway setting shouldn't affect the server itself. Something else is wrong. | 14:16 |
| jtv | And it sounds as if it's in the system network settings, really, not the MAAS settings. | 14:17 |
| tomixxx3 | server is reachable through 10.0.0.9/MAAS only i-net does not work | 14:18 |
| jtv | So... the nodes can reach the server and vice versa, but the server cannot reach the internet? | 14:19 |
| tomixxx3 | yes | 14:19 |
| jtv | And that interface gets its IP address from the uni's DHCP server, right? | 14:20 |
| tomixxx3 | yes | 14:20 |
| jtv | Does it have one now? Is the interface up? | 14:20 |
| tomixxx3 | yes | 14:20 |
| jtv | Can the server reach other hosts on the university network? | 14:20 |
| tomixxx3 | just a moment, iam rebooting the server right now - and i have forgotten to run the NAT-script... | 14:21 |
| tomixxx3 | its a NAT script provided by gmb | 14:21 |
| jtv | Yes, I remember. | 14:21 |
| jtv | I hope you don't have one of those weird setups where on some boots, eth0 and eth1 are switched around... | 14:22 |
| jtv | But probably not. | 14:22 |
| tomixxx3 | hehe, i have tried already inverted ethernet ports in the script :D | 14:22 |
| jtv | Hope that didn't affect anything... | 14:23 |
| tomixxx3 | schould not | 14:23 |
| tomixxx3 | the server behaves like the nodes now: it can resolve the DNS name of any http-url but it cannot connect... | 14:24 |
| jtv | That does sound as if some wires got crossed somewhere... | 14:24 |
| tomixxx3 | assume my gateway address is 143.205.140.30, the ip of the other network interface | 14:26 |
| tomixxx3 | what could my ethernet settings look like xP - they should also allow 10.0.0.9 as a IP | 14:26 |
| tomixxx3 | sorry wrong question. why iam not able to set the "network" parameter in cluster interface settings | 14:31 |
| tomixxx3 | ? | 14:31 |
| jtv | Network parameter? I don't understand what parameter that is... do you mean netmaks? | 14:32 |
| jtv | *netmask? | 14:32 |
| tomixxx3 | no, i mean "network", the part of the net | 14:34 |
| jtv | Ohhh | 14:35 |
| jtv | That's not a parameter. | 14:35 |
| jtv | That's just a network address computed from your cluster interface's IP address and netmask. | 14:35 |
| tomixxx3 | ok | 14:36 |
| tomixxx3 | if i remove the gateway line from the "interfaces" file i have access to i-net on server again | 14:46 |
| jtv | Oh, did you set your own server's address as its own interface in its own interfaces file!? | 14:49 |
| jtv | That would create a fun situation. :) | 14:49 |
| tomixxx3 | yes i guess | 14:50 |
| tomixxx3 | bad? | 14:50 |
| jtv | Yes — if you set a gateway in your interfaces file, that tells _that same machine_ where it should send its internet packets. | 14:51 |
| tomixxx3 | so it asks only itself? | 14:52 |
| jtv | As you noticed we have 2 "gateway" settings. | 14:52 |
| jtv | One is in /etc/network/interfaces. | 14:52 |
| jtv | The other is in MAAS. | 14:52 |
| tomixxx3 | yep | 14:52 |
| jtv | The one in /etc/network/interfaces is for configuring your server's own networking. | 14:53 |
| jtv | But the network interface that goes to the "outside" should just get its gateway from DHCP. | 14:53 |
| jtv | On the other hand, the gateway setting in MAAS is configuration for the DHCP server. | 14:53 |
| jtv | It doesn't do anything for your machine, but the nodes are its DHCP clients. | 14:53 |
| jtv | And it tells the _clients_ where their gateway is. | 14:53 |
| tomixxx3 | ohoh | 14:54 |
| jtv | For the clients (your nodes), your server is the gateway. That's fine. | 14:54 |
| jtv | But you configured your server to use itself (on the other interface) as the gateway. | 14:54 |
| jtv | And so it was probably just running around in circles. | 14:54 |
| tomixxx3 | i understand | 14:54 |
| tomixxx3 | good point | 14:55 |
| tomixxx3 | so maas takes control over the one ethernet port? | 14:57 |
| tomixxx3 | wow, this could solve a lot of troubles | 14:58 |
| tomixxx3 | jtv: but i have to configure the ehternet port in the "interfaces" file too? | 15:03 |
| tomixxx3 | jtv: just remove the "gateway" to be the same as the ip | 15:03 |
| * jtv reads backscroll | 15:03 | |
| jtv | MAAS doesn't actually take control of any ethernet interfaces. But it serves DHCP on the interface that faces your nodes, which is pretty bossy. | 15:04 |
| tomixxx3 | OK, so only the "gateway" line should be replaced in the "interfaces" file? | 15:04 |
| jtv | I mean good, but it's more "taking control of the network" than "taking control of the ethernet port." | 15:04 |
| jtv | It's hard for me to imagine what the current state is, and it's getting a bit late to really dive into it... but generally, you set up your system's networking in /etc/networks/interfaces, and then you let MAAS run on top of that as basically just another server application. | 15:05 |
| === freeflying is now known as freeflying_away | ||
| jtv | MAAS tries to _detect_ your system setup when you install it, but it doesn't keep track after that and it doesn't change them. | 15:07 |
| jtv | It only does that sort of "bossy" stuff on the nodes. | 15:07 |
| tomixxx3 | kk | 15:07 |
| tomixxx3 | shit | 15:17 |
| tomixxx3 | sorry, it seems it is working now! | 15:17 |
| tomixxx3 | i have removed the "gateway" line from "interfaces" and set "ip router" in dashbaoard to "10.0.0.9" - same address like the IP address of the maaas-server | 15:18 |
| jtv | The "IP router" field in MAAS doesn't matter much — that's just for large setups where you sometimes want to allocate nodes that are connected to specific routers. | 15:19 |
| tomixxx3 | hmmm, or was it the reboot of the nodes? | 15:19 |
| tomixxx3 | i dont know... | 15:19 |
| jtv | Well the incorrect gateway setting in /etc/networks/interfaces you had earlier definitely sounded like a problem. | 15:20 |
| tomixxx3 | yeah, but before today i had no gateway line configured... | 15:20 |
| tomixxx3 | executed "wget www.orf.at" from ubuntu@cloud1 now and everything seemts to work "index.html" saved... | 15:21 |
| tomixxx3 | i cant believe right now, maybe just a fata morgana | 15:23 |
| jtv | heh | 15:23 |
| jtv | Networking can be tough going, but it's useful knowledge in general life. | 15:24 |
| jtv | And when I say "general," obviously I mean "deeply technical computer-related." :) | 15:25 |
| tomixxx3 | yeah, quite a good feeling right now, i want to expand my cloud :D *hrhr* | 15:27 |
| tomixxx3 | jtv: but it's definitely the "router ip" setting | 15:28 |
| tomixxx3 | if have tried a different value now, and it is not working anymore | 15:28 |
| jtv | And if you set it back to the previous value, it works again..? | 15:29 |
| tomixxx3 | jtv: worth a try | 15:29 |
| tomixxx3 | what do u mean with previosu value? "ip address" == "router ip" or "ip address" == the address before today? | 15:29 |
| tomixxx3 | i've tried it with "the address before today" and it does not work | 15:30 |
| jtv | I mean, if you reset it to the "good" value that worked just now, it works again? | 15:31 |
| tomixxx3 | that's what im trying right now | 15:31 |
| tomixxx3 | would be cool | 15:31 |
| tomixxx3 | ^^ | 15:31 |
| jtv | Let's hope it works! | 15:32 |
| tomixxx3 | yep, working | 15:36 |
| jtv | Great! I don't understand it, but maybe tomorrow I can look into it. | 15:37 |
| jtv | For now, I have to leave. | 15:37 |
| tomixxx3 | kk, ty for help so far! | 15:38 |
| jtv | np! | 15:39 |
| === CyberJacob|Away is now known as CyberJacob | ||
| === zz_mwhudson is now known as mwhudson | ||
| === freeflying_away is now known as freeflying | ||
| chris38home__ | just upgrade maas on trusty and got this in pserv.log : | 23:13 |
| chris38home__ | twisted.internet.error.CannotListenError: Couldn't listen on 127.0.0.1:69: [Errno 2] No such file or directory. | 23:13 |
| chris38home__ | any idea ? | 23:14 |
| bigjools | what version of the package? | 23:14 |
| chris38home__ | 1.5+bzr1951+1951+243~ppa0~ubuntu14.04.1 | 23:14 |
| bigjools | you are better off using the main archive for trusty | 23:15 |
| chris38home__ | go it on 1.5+bzr1951-0ubuntu1 too | 23:15 |
| bigjools | the daily build packages may be broken at any time | 23:15 |
| bigjools | ok | 23:15 |
| bigjools | roaksoax: is that ^^ anything like the authbind error you saw? | 23:16 |
| roaksoax | bigjools yup. Still need to handle upgradea. Clean inatalls are not affected | 23:18 |
| bigjools | roaksoax: what's the procedure to handle the upgrade so chris38home__ can be unblocked? | 23:18 |
| bigjools | and the rest of us :) | 23:19 |
| chris38home__ | ;-) | 23:19 |
| roaksoax | just edit /etc/authbind/byuid/xyz | 23:19 |
| roaksoax | and make ghe 68:68 become68:69 | 23:20 |
| bigjools | right | 23:20 |
| chris38home__ | cool, got it fixed | 23:21 |
| chris38home__ | thanks ;-) | 23:21 |
| === mwhudson is now known as zz_mwhudson | ||
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