How do I do I connect a block device to a privileged lxc container at start?
I'm looking to install RADOS osds in privileged lxc containers and I'm having trouble setting up the block devices.
I need /dev/sdb, etc. to be connected at container start, before the RADOS osd stuff spins up. I have everything like permissions and app armor set up correctly since I can take a new container, use mknod to create the dev entry, setup the RADOS osd, and everything appears to work. This obviously own't survive a container restart, however.
Note that I can't use an fstab to mount a file system. RADOS's fancy new storage requires block devices. I don't care about security since this is just for a RADOS sandbox.
I've been digging around in the lxc docs, but I can't seem to find anything that helps. I tried an @reboot cron entry, but that appears to happen too late so the osd is grumpy about not having storage. And it looks like udev doesn't work in containers(?)
How do you set up block device dev entries that persist in lxc containers?
lxc
add a comment |
I'm looking to install RADOS osds in privileged lxc containers and I'm having trouble setting up the block devices.
I need /dev/sdb, etc. to be connected at container start, before the RADOS osd stuff spins up. I have everything like permissions and app armor set up correctly since I can take a new container, use mknod to create the dev entry, setup the RADOS osd, and everything appears to work. This obviously own't survive a container restart, however.
Note that I can't use an fstab to mount a file system. RADOS's fancy new storage requires block devices. I don't care about security since this is just for a RADOS sandbox.
I've been digging around in the lxc docs, but I can't seem to find anything that helps. I tried an @reboot cron entry, but that appears to happen too late so the osd is grumpy about not having storage. And it looks like udev doesn't work in containers(?)
How do you set up block device dev entries that persist in lxc containers?
lxc
add a comment |
I'm looking to install RADOS osds in privileged lxc containers and I'm having trouble setting up the block devices.
I need /dev/sdb, etc. to be connected at container start, before the RADOS osd stuff spins up. I have everything like permissions and app armor set up correctly since I can take a new container, use mknod to create the dev entry, setup the RADOS osd, and everything appears to work. This obviously own't survive a container restart, however.
Note that I can't use an fstab to mount a file system. RADOS's fancy new storage requires block devices. I don't care about security since this is just for a RADOS sandbox.
I've been digging around in the lxc docs, but I can't seem to find anything that helps. I tried an @reboot cron entry, but that appears to happen too late so the osd is grumpy about not having storage. And it looks like udev doesn't work in containers(?)
How do you set up block device dev entries that persist in lxc containers?
lxc
I'm looking to install RADOS osds in privileged lxc containers and I'm having trouble setting up the block devices.
I need /dev/sdb, etc. to be connected at container start, before the RADOS osd stuff spins up. I have everything like permissions and app armor set up correctly since I can take a new container, use mknod to create the dev entry, setup the RADOS osd, and everything appears to work. This obviously own't survive a container restart, however.
Note that I can't use an fstab to mount a file system. RADOS's fancy new storage requires block devices. I don't care about security since this is just for a RADOS sandbox.
I've been digging around in the lxc docs, but I can't seem to find anything that helps. I tried an @reboot cron entry, but that appears to happen too late so the osd is grumpy about not having storage. And it looks like udev doesn't work in containers(?)
How do you set up block device dev entries that persist in lxc containers?
lxc
lxc
asked Feb 4 at 23:59
Dana RobinsonDana Robinson
1012
1012
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "89"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1115678%2fhow-do-i-do-i-connect-a-block-device-to-a-privileged-lxc-container-at-start%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Ask Ubuntu!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1115678%2fhow-do-i-do-i-connect-a-block-device-to-a-privileged-lxc-container-at-start%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown