danmack

Zig Binary Sizes by Compiler Option

Testing binary sizes created by zig on an alpine linux using zig built from its master branch.

$ ls -l release* | sort -n -k4 | awk '{ printf("%21s %8d bytes\n", $NF, $5);}'
        releaseSmall    13696 bytes
releaseFast-stripped   186496 bytes
releaseSafe-stripped 224096 bytes

danmack

How to set up and work with an LFS repo

This writeup describes how to work with LFS on an internal / private gitlab server using self signed certificates.

Setting up your Git Software

Your git software (git cli command most likely) will need to have the git-lfs software installed. If you are on Ubuntu Linux, this add-on is available in the apt software repo, for example:

danmack

NIX Package Manager Install on Alpine Linux

System Information

• alpine 3.17.1, 3.18, 3.19 and edge x86-64
• multiple linux kernels worked 6.1.8-lts w/zfs and 6.6.8-lts
• edge, testing apk repos enabled

Preparation

danmack

How to do rootless Podman on Alpine Linux

Using recent podman (3.x) on 5.10.x Alpine Linux Kernels

apk add podman util-linux

enable and start the cgroups and podman services

danmack

fc30 packages installed:

$ rpm -qa|grep nvidia
xorg-x11-drv-nvidia-418.56-1.fc30.x86_64
xorg-x11-drv-nvidia-kmodsrc-418.56-1.fc30.x86_64
xorg-x11-drv-nvidia-libs-418.56-1.fc30.x86_64
kmod-nvidia-5.0.11-300.fc30.x86_64-418.56-2.fc30.x86_64
xorg-x11-drv-nvidia-cuda-libs-418.56-1.fc30.x86_64
akmod-nvidia-418.56-2.fc30.x86_64

danmack

[mack@hyperion skunk]$ cat mk-fc30-image
#!/bin/bash
cont=$(buildah from fedora:30)
buildah run "$cont" -- dnf update -y
buildah commit "$cont" fc30b

[mack@hyperion skunk]$ buildah images
IMAGE NAME                                               IMAGE TAG            IMAGE ID             CREATED AT             SIZE
docker.io/library/fedora                                 30                   ad0d3c0bf762         Apr 3, 2019 17:20      311 MB
localhost/fc30b                                          latest               e1e8d0d135a7         Apr 23, 2019 13:35     311 MB

danmack

mega:~/src/cont$ podman inspect localhost/fc30b
[
    {
        "Id": "d49e72ff10298e8a50b33c3b3b451acd342146858b0e4354dea926d785839620",
        "Digest": "sha256:cd3852ebf1ab5ce7751e9fd15bd09acb247147ba3f24a47fcc2998ee948feffd",
        "RepoTags": [
            "localhost/fc30b:latest"
        ],
        "RepoDigests": [
            "localhost/fc30b@sha256:cd3852ebf1ab5ce7751e9fd15bd09acb247147ba3f24a47fcc2998ee948feffd"

danmack

$ c=$(buildah from fedora:30)

Getting image source signatures
Copying blob 160e9aefb317: 85.15 MiB / 86.30 MiB [=============================]
Copying blob 160e9aefb317: 86.30 MiB / 86.30 MiB [==========================] 7s
Copying config ad0d3c0bf762: 1.99 KiB / 1.99 KiB [==========================] 0s
Writing manifest to image destination
Storing signatures
fano:~/src/cont$
fano:~/src/cont$ buildah run $c -- dnf update -y

danmack

{
  "brand": "bhyve",
  "alias": "centomdano",
  "hostname": "centodano",
  "dns_domain": "example.com",
  "vcpus": 2,
  "ram": 4096,
  "resolvers": ["8.8.8.8", "8.8.4.4"],
  "disks": [
    {

danmack

Adding a new disk to a bhyve vm takes a few steps.

  1.  increase the quota on the zfs dataset to accomodate the additional
      space.
  2.  create a zvol inside the zone
  3.  stop the vm and update its configuration to reflect the change
  4.  start the vm, login and use the disk

# update quota