Note: Sorry for potentially reposting, but I am experiencing issues with the smartos-discuss list. While the previous mail did appear in the https://www.listbox.com/member/archive/184463/=now webinterface my colleagues and I didn’t get the mail ourselves so I would assume nobody got them via mail. This is happening quit lot recently and I haven’t nailed down why yet. --------------------------------------------------------------
Can anybody shed some light on these Docker questions we are facing in relation to Smartos and Triton (we are also just learning how to apply Docker to our existing dev workflows as some questions might betray 😊 ) ? It is our understanding that SmartOS really wants to work well with Docker but we cannot yet see a clear path ahead as to how to actually use it without using KVMs again or running on directly on linux and thus loosing ZFS. Questions: 1) Are there any plans on supporting docker daemon in a smartos/lx zone in the future ? (Right now we get errors such as ‘overlay’ not found as a supported filesystem on this host) 2) I see how I can use https://github.com/joyent/smartos-live/tree/master/src/dockerinit to start a process but what exactly makes this docker ? How can I push a container there or talk to it from my dev machine etc ? 3) Getting started in Triton with containers was quite simple (after understanding some limitations such as port mapping missing, not a big deal but many examples in docker use that and thus you stumble here at first), but how do I get snapshots made in Triton a’la zsnapper. Can I make a snapshot copy of a container to test a configuration change ? 4) Can I somehow zfs diff backup a container in Triton as is , to ensure a perfect replica ? 5) Does Triton have some kind of dynamic DNS service which I could point to a container ? 6) How do I handle data-volumes on Triton if Joyent doesn’t like volume-from and there is not real ‘host’ (BrianC talked about no liking that). Our Server Data Core Code is a web-service which has its shard of data (append only file structure) collocated with it right now. In Docker we would use data volumes but I don’t want to go over the network from the code to the data. The whole point of our setup was to keep code and data together. Any help or pointers would be greatly appreciated. I hope there are at least some people here how are interested in Docker on SmartOS 😉 or have more experience with it. Thanks, Matthias Background: I am experimenting with docker on sdc as well as docker directly on our smartos hosts but are having a number of questions. We are currently hosting a number of smartos servers in datacenters in Germany and some directly inside customers DCs. Right now we have a pretty well working setup with SmartOS zones preconfigured by Chef directly from Git on our master servers and then we can transport those as imgadm Images to our customer or the other DC sites. Automatic Snapshotting is performed by zsnapper and Backup is done via zfs send -I to the dedicated backup machines. We can quickly spin up any backuped up machine somewhere else if we needed to, In the future though, we are looking at moving our software application to docker to streamline some processes there and docker/smartos looked like a great thing (also in case one of our applications would have to be moved to an actual cloud provider such as Joyent ‘Triton’). But the amount of available documentation on getting docker to replace our current setup is a little elusive. PS: We do not currently have plans to setup a full SDC (mostly because we cannot appropriately judge how much know-how we will have to build up and how long that would take as well as the fact that 1) we don’t have head nodes setup in the datacenter, thus new hardware would be required and 2) the SDC UI isn’t open source it seems and 3) the whole backup/zfs management of sdc is unclear). I am not unwilling but no matter how easy it is, it will be more complicated and thus more to learn than just learning how to running docker host in a vm, knowledge we would have to gain,retain and update regularily Sent from Mail for Windows 10 ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
