Bocker
Dev tools
container runtime
SHOW HN2015
662points
87comments
#12of 2,565 in 2015
Top 1%of 2015 by points
How HN took it
MixedNo clear lean
13 positive, 13 neutral or asking, 2 mixed, 4 critical, out of 32 comments about the project. Thread score +0.27.
Execution: 3 for, 2 againstIdea: 5 for, 0 againstDesign: 1 for, 1 againstPricing: 1 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Simple and educational demonstration of container basics
From 3 comments
Using btrfs subvolumes as the image format, that's a nice touch. On the same road as the hypothetical systemd packaging system (not that I'm very enthusiastic about that). The…
vezzy-fnord on HNJust playing with this in a VM with an attached btrfs volume, a complete revelation. 96 lines! And it's actually pretty functional. This takes keeping it simple to a whole new…
tobbyb on HNWhen the abstractions are right, things fall out almost for free. Kudos for attempting this, made me smile from ear to ear.
agumonkey on HN
Good use of btrfs subvolumes as image format
From 2 comments
Using btrfs subvolumes as the image format, that's a nice touch. On the same road as the hypothetical systemd packaging system (not that I'm very enthusiastic about that). The…
vezzy-fnord on HNNice work. Great to see the advanced features of BTRFS put to use.
WD-42 on HN
Objections
Does not implement Docker's packaging format, which is most of its value
From 2 comments
Wow, Docker in 100 lines! It runs as root? Oh. It is written in bash? Oh. It needs a ton of manual setup? Oh. It doesn't actually implement the package format which is most of…
pekk on HNYes. The basic technology has been there for a while. And the Docker source code has some eyebrow-raising parts to it. However, I've stated this in other threads: Docker isn't…
hosh on HN
Runs as root and needs manual setup
From 1 comment
Wow, Docker in 100 lines! It runs as root? Oh. It is written in bash? Oh. It needs a ton of manual setup? Oh. It doesn't actually implement the package format which is most of…
pekk on HN
Hardcoded DNS resolv.conf setup is poor practice
From 1 comment
I thought puppet/chef were the pit of the devops ridicule. Then I not only saw this, but also positive reactions to a readable code in which you have : ``` echo 'nameserver…
SFjulie1 on HN
Requests
Support for user namespaces and unprivileged containers
From 1 comment
Just playing with this in a VM with an attached btrfs volume, a complete revelation. 96 lines! And it's actually pretty functional. This takes keeping it simple to a whole new…
tobbyb on HN
Overlayfs as alternative to btrfs
From 2 comments
Just playing with this in a VM with an attached btrfs volume, a complete revelation. 96 lines! And it's actually pretty functional. This takes keeping it simple to a whole new…
tobbyb on HNnot sure if you ever saw this - https://www.phoronix.com/scan.php?page=news_item&px=CoreOS-Btrfs-To-EXT4-OverlayFS it might be interesting to see a version of your script using…
sandGorgon on HN
GPG-signed push and pull of images
From 1 comment
Add support for GPG-signed `btrfs pull` and `btrfs push` and I'm totally sold! I've been working on something similar to this but on top of systemd-nspawn, which already does…
arianvanp on HN
Questions
How the command in the .cmd file gets executed
From 1 comment
I'm missing something, what actually "executes" the command here echo "$2" > "$btrfs_path/$uuid/$uuid.cmd" Is something watching for .cmd? Is this some behavior of util-linux…
spydum on HN
Alternatives named
LXC
From 2 comments
Just playing with this in a VM with an attached btrfs volume, a complete revelation. 96 lines! And it's actually pretty functional. This takes keeping it simple to a whole new…
tobbyb on HNNot really, Nspawn is extremely promising and is developing fast. Systemd 220 adds support for user namespaces so you can run nspawn containers as non root users. But containers…
tobbyb on HN
systemd-nspawn
From 2 comments
Systemd-nspawn is way easier to use than LXC imo in that it replicates the simplicity of chroot with the power of cgroups. The security story is unfinished though.
XorNot on HNNot really, Nspawn is extremely promising and is developing fast. Systemd 220 adds support for user namespaces so you can run nspawn containers as non root users. But containers…
tobbyb on HN
dockerlite
From 1 comment
There's also https://github.com/docker/dockerlite . But not sure how current it is.
asdfaoeu on HN
Guix
From 1 comment
Debian and Fedora do packaging better than Docker, relatively speaking, but they still have major issues that have lead to "solutions" like Docker, Chef/Omnibus, etc. They…
davexunit on HN