This is probably the best video tutorial I’ve ever seen. To the point, literally has answered every question I had coming into it, and no stupid antics or 20 minutes of theory/opinion. Bravo!
it took me quite some time to figure how to properly mount the bridge interface, after lots of research, I realize I had to remove the device conf from netplan (usually 00-installer-config.yaml) and leave only the bridge conf in netplan. After that, I was able to expose the LXC to the home network. Great tutorial though!
@DevOps Journey, thank you very much. Excellent Content. I like your straight-to-the-point rite . It got me hooked and I am also a newcomer loving (being patient) with the processes of Linux. You have made me to have the patience and confidence to get myself a raspberry pi - i will look for one while listening to your content. Thank you.
Anyone with access to the host can open a root shell in any lxc containers. Besides restricting host access are there any mechanisms to prevent root access to the individual lxc containers?
containers use the the system kernel unlike the VM where everything is simulated. This makes containers really fast and lightweight but with a downside of security. If you get a virus on the container that uses the kernel, your host machine will get affected.
If the containers share the kernel with the host system: Is it even possible to run different releases of a distribution? For example: Could I run Debian 12 containers on a Debian 10 host or the other way around? Which kernel would be used? The 6.x from Debian 12 or the 4.x from Debian 10? How do dist-upgrades work with containers? If I have an old Debian 11 host with Debian 11 containers and I want to upgrade to Debian 12: Do I have to upgrade the containers first or the host? Or does it not matter?
Containers are isolated from the host. The debian 12 container on a debian 10 host will use the 4.x kernel of the debian 10 host. Running dist-upgrades on the host will only upgrade the host, leaving the container untouched. Running dist-upgrades on the container will only upgrade the container, leaving the host and its kernel untouched. So you have to upgrade both, if you wish. Oh and yes, it is possible to run different distributions as containers on a single host, that's basically what LXC was made for. The container doesn't know about the host (it actually thinks it is the host), whereas the host knows everything about the container.
Great video but you might want to mention that this is LXD + LXC not just LXC on its own. Though you can do nearly all of the same operations with both setups the commands are wildly different.
@Nick can you elaborate? LXC is the containers, I believe what you are referring is the commands he is using to manage the containers? or the manager CLI environment he is using to control the LXC machines?
@@NickMoore Do you have any references so that I can read more. I am not getting at all, the diff between LXC and LXD. According to ubuntu official docs:- "LXD (pronounced lex-dee) is the lightervisor, or lightweight container hypervisor. LXC (lex-see) is a program which creates and administers “containers” on a local system.". So can this work without container hypervisor (LXD)
Great vid, love LXC! I set my LXC host up then immediately used terraform for creating nodes and ansible (where possible) to configure the container. Those are just running on the host. I’m thinking of trying clustering but setting up OVN and ceph might be a little much. Ubuntu has micro cloud which is another idea.
I don't know if your goal is to "blow up" on YT but I feel like you deserve way more views/followers than what you have. Thank you for being here for us and on Discord.
How did you get authorized_keys? Because only the public one is sent to another server and authorized_keys appears on another server? Did you send the ssh-copy-id user@ip-server command to this server yourself?
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Great video thank you for tips and showing bridge adapter.
Wait, you mentioned you're running LXC on Raspberry Pi ? I do have couple of RPi4 sitting around on my closet. Can you please advise, I am interested to DevOps.
Hello I have configured my ubuntu LXD in my VM. Now I want to ping that my lxc contenier from my VM to my local system. but using this command it's not working (lxc config device add mongodb001 eth0 nic nictype=bridged parent=lxdbr0 name=eth0)
I don't know why it's extra difficult to figure out LXC commands.. like "lxc image alias list images: alpine" . What's the "alias" for? and "images: " Reminds me of git commands. LOL
Awesome videos, but I seem to have an issue with the keys, maybe my current authoized_keys file isn't set up properly but it still denys my entrance even if I move the contents of my entire .ssh directory. Also I have to sudo all of my lxc commands, where'd I screw up? 😂
Hey Raman. You can actually get ESXi on a Raspberry Pi! I used it for a few months. It's a bit trickier to setup then LXC but it can be worth it if you want a fully featured Hypervisor. Just search for ESXi ARM, lot's of tutorials on it.
This is probably the best video tutorial I’ve ever seen. To the point, literally has answered every question I had coming into it, and no stupid antics or 20 minutes of theory/opinion. Bravo!
it took me quite some time to figure how to properly mount the bridge interface, after lots of research, I realize I had to remove the device conf from netplan (usually 00-installer-config.yaml) and leave only the bridge conf in netplan. After that, I was able to expose the LXC to the home network. Great tutorial though!
Great video, really helpful. Got me up and running in no time. Thanks
@DevOps Journey, thank you very much. Excellent Content. I like your straight-to-the-point rite . It got me hooked and I am also a newcomer loving (being patient) with the processes of Linux. You have made me to have the patience and confidence to get myself a raspberry pi - i will look for one while listening to your content. Thank you.
Anyone with access to the host can open a root shell in any lxc containers. Besides restricting host access are there any mechanisms to prevent root access to the individual lxc containers?
What are the advantages and disadvantages of LXC containers to VMs?
containers use the the system kernel unlike the VM where everything is simulated. This makes containers really fast and lightweight but with a downside of security. If you get a virus on the container that uses the kernel, your host machine will get affected.
Thanks for that amazing one! I always hearing LXC but that was my first time with that
No problem! Something that you can pickup relatively quick and learn a lot with.
If the containers share the kernel with the host system: Is it even possible to run different releases of a distribution? For example: Could I run Debian 12 containers on a Debian 10 host or the other way around? Which kernel would be used? The 6.x from Debian 12 or the 4.x from Debian 10?
How do dist-upgrades work with containers? If I have an old Debian 11 host with Debian 11 containers and I want to upgrade to Debian 12: Do I have to upgrade the containers first or the host? Or does it not matter?
Containers are isolated from the host. The debian 12 container on a debian 10 host will use the 4.x kernel of the debian 10 host. Running dist-upgrades on the host will only upgrade the host, leaving the container untouched. Running dist-upgrades on the container will only upgrade the container, leaving the host and its kernel untouched. So you have to upgrade both, if you wish. Oh and yes, it is possible to run different distributions as containers on a single host, that's basically what LXC was made for. The container doesn't know about the host (it actually thinks it is the host), whereas the host knows everything about the container.
🎉 Extremely helpful. Well done. Thank you!
Great video but you might want to mention that this is LXD + LXC not just LXC on its own. Though you can do nearly all of the same operations with both setups the commands are wildly different.
@Nick can you elaborate? LXC is the containers, I believe what you are referring is the commands he is using to manage the containers? or the manager CLI environment he is using to control the LXC machines?
@@jairusan LXD is a package that provides tools to manage LXC containers. You can use LXC containers without LXD but the procedure is not the same.
@@NickMoore Good to know thanks for the info. And thanks again DevOps Journey.
@@NickMoore Do you have any references so that I can read more. I am not getting at all, the diff between LXC and LXD. According to ubuntu official docs:- "LXD (pronounced lex-dee) is the lightervisor, or lightweight container hypervisor. LXC (lex-see) is a program which creates and administers “containers” on a local system.". So can this work without container hypervisor (LXD)
Thank you buddy, keep it doing with Linux and Devops tutorials
More to come!
Great vid, love LXC! I set my LXC host up then immediately used terraform for creating nodes and ansible (where possible) to configure the container. Those are just running on the host. I’m thinking of trying clustering but setting up OVN and ceph might be a little much. Ubuntu has micro cloud which is another idea.
I don't know if your goal is to "blow up" on YT but I feel like you deserve way more views/followers than what you have. Thank you for being here for us and on Discord.
No problem David! The YT channel certainly is getting there! Picked up a lot of traction in the past month. Thank you for the support.
quality vid, thanks
How did you get authorized_keys? Because only the public one is sent to another server and authorized_keys appears on another server? Did you send the ssh-copy-id user@ip-server command to this server yourself?
Great video thank you for tips and showing bridge adapter.
Awesome video buddy.....keep doing this good work. 👍
Thanks, will do! Thank you for your support 🍻
Man.Really Love from Pakistan.Feel Happy to subscribe you.
Wait, you mentioned you're running LXC on Raspberry Pi ?
I do have couple of RPi4 sitting around on my closet.
Can you please advise, I am interested to DevOps.
Yup! LXC is running on my Pi.
very useful video
What about accessing host's hardware from a LXC container?
I believe it's isolated by default, but there is probably something you can do to get that.
Great content! very helpful! 👍
Hello I have configured my ubuntu LXD in my VM. Now I want to ping that my lxc contenier from my VM to my local system. but using this command it's not working (lxc config device add mongodb001 eth0 nic nictype=bridged parent=lxdbr0 name=eth0)
That bridge was the function I was looking for. Move over vagrant, we have a real contender. Thank you 😊
Nice and useful
Thank you for your support!
I don't know why it's extra difficult to figure out LXC commands.. like "lxc image alias list images: alpine" . What's the "alias" for? and "images: "
Reminds me of git commands. LOL
Awesome videos, but I seem to have an issue with the keys, maybe my current authoized_keys file isn't set up properly but it still denys my entrance even if I move the contents of my entire .ssh directory. Also I have to sudo all of my lxc commands, where'd I screw up? 😂
Possibly perrmissions of the files once they were copied over ?
This is LXD, which you don't need if you know how LXC works.
Looks like LXC to me :0
@@DevOpsJourney The command is called lxc, but you actually use LXD. If you used LXC by itself, you'd be using lxc-... commands.
Awesome! Have you any experience with VMs on raspberry pi? With lxc ofcourse, but maybe with another hypervisors. Can you tell about it?
Hey Raman. You can actually get ESXi on a Raspberry Pi! I used it for a few months. It's a bit trickier to setup then LXC but it can be worth it if you want a fully featured Hypervisor. Just search for ESXi ARM, lot's of tutorials on it.
So cool
I have a feeling that lxc is literally docker in beta version. Am I correct?
Yeah Docker is based on some of the groundwork LXC layed
Why not cloud and lxe !?
I'm not familiar wih Ixe, will have to look into it! I usually use lxc or vagrant + virtualbox for homelab
Typo I meant LXC only, sorry
My question is why do you use LXC not cost efficient cloud vms?
@@kintulupadhyay6247 Cloud is a great option as well, but for me I use LXC at home to host all my development stuff and home automation
Commands almost similar like docker
Yup!
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You should change the title of this video, as this is about LXD really; not LXC.
Very easily explained
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