VirtualTam's bookmarks

1. Gymnasium - An API standard for reinforcement learning with a diverse collection of reference environments 2024-10-13

   tags: artificial-intelligence, programming/python, research

   [ permalink ]

   • Farama-Foundation/Gymnasium
   • 2407.17032 - Gymnasium: A Standard Interface for Reinforcement Learning Environments (PDF, 2024-07-24)
2. Steam Audio - A full-featured audio solution that integrates environment and listener simulation 2024-04-02

   tags: audio, game-engine/fmod, game-engine/unity, game-engine/unreal, game/steam, programming/c++, virtual-reality

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   • Steam Audio Open Source Release
   • ValveSoftware/steam-audio
3. How to Learn Nix 2024-01-31

   tags: linux/nixos, programming/functional-programming, programming/shell

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   • Part 4: Quick starts, full hearts
   • Part 12: The Nix expression language
   • Part 22: Setting up a declarative user environment
   • Part 26: An infinite list of functions
   • Part 37: Saving your shell
4. facebookresearch/nle: The NetHack Learning Environment 2022-12-14

   tags: artificial-intelligence, facebook, game/roguelike, nethack, neural-network, research

   [ permalink ]

   • https://github.com/NetHack/NetHack
5. Nox - a command-line tool that automates testing in multiple Python environments, similar to Tox 2022-07-06

   tags: programming/python, programming/python/virtualenv

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   • https://github.com/wntrblm/nox
6. Testing Microservices, the sane way | by Cindy Sridharan 2022-03-23

   tags: continuous-integration, microservice, programming/testing

   [ permalink ]

   Article series:

   • Testing Microservices, the sane way
   • Testing in Production, the safe way
   • Testing in Production: the hard parts

   Presentations:

   • Cindy Sridharan: Testing Microservices: A Sane Approach Pre-Production & In Production

   • https://twitter.com/copyconstruct/status/974530841190608897

   I’m more and more convinced that staging environments are like mocks - at best a pale imitation of the genuine article and the worst form of confirmation bias.

   It’s still better than having nothing - but “works in staging” is only one step better than “works on my machine”.

7. Scaling productivity on microservices at Lyft 2022-03-23

   tags: continuous-integration, envoy, microservice, network/http, programming, team

   [ permalink ]

   • Part 1 - History of development and test environments
   • Part 2 - Optimizing for fast local development
   • Part 3 - Extending our Envoy mesh with staging overrides
   • Part 4 - Gating Deploys with Automated Acceptance Tests
8. Terragen – a powerful solution for building, rendering, and animating realistic natural environments 2020-01-21

   tags: generation, graphics/2d, graphics/3d, image, render

   [ permalink ]

   • https://en.wikipedia.org/wiki/Terragen
   • https://planetside.co.uk/wiki/
9. La Capitaine is an icon pack designed to integrate with most desktop environments. The set of icons takes inspiration from the latest iterations of macOS and Google's Material Design. 2019-09-24

   tags: apple/macos, desktop, image/icon, linux, user-interface/gtk

   [ permalink ]
10. shenzhen-go: Experimental visual Go environment 2019-06-11

    tags: game, programming-language, programming/go, visualization

    [ permalink ]

    • https://google.github.io/shenzhen-go/
    • https://www.youtube.com/watch?v=AB9AUAmMlDo
11. gVisor - OCI-compatible sandbox runtime that provides a virtualized container environment 2019-04-15

    tags: linux, linux/container, linux/kernel, security, userspace

    [ permalink ]

    • https://github.com/google/gvisor
    • https://cloud.google.com/blog/products/gcp/open-sourcing-gvisor-a-sandboxed-container-runtime
12. Docker PHP/PHP-FPM Configuration via Environment Variables | Juan Treminio 2019-01-23

    tags: linux/container/docker, network/http-server/nginx, programming/php, web

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13. Go Docker dev environment with Go Modules and live code reloading 2019-01-03

    tags: linux/container/docker, programming/go, source-code-management/git

    [ permalink ]

    • https://github.com/cespare/reflex
14. Docker - Allow COPY command's --chown to be dynamically populated via ENV or ARG · Issue #35018 2018-09-26

    tags: build, environment, linux/container/docker, variable

    [ permalink ]

    • https://stackoverflow.com/questions/51981904/cant-build-docker-multi-stage-image-using-arg-in-copy-instruction
    • https://github.com/moby/moby/issues/34129
15. Peter Bourgon · Go: Best Practices for Production Environments 2018-08-18

    tags: audio, development, network, programming/go, source-code-management/git, web

    [ permalink ]

    • http://peter.bourgon.org/go-best-practices-2016/
    • https://github.com/gophercon/2014-talks
    • http://confreaks.tv/videos/gophercon2014-best-practices-for-production-environments
16. Docker Compose environment variable substitution and default values 2018-08-02

    tags: environment, linux/container/docker, linux/container/docker-compose, programming/shell, variable

    [ permalink ]

    • https://github.com/docker/compose/issues/2441
    • https://github.com/docker/compose/pull/3108
    • https://github.com/docker/compose/issues/5829
17. https - How to run Gitlab in docker container with nginx-proxy over ssl with letsencrypt securely - Stack Overflow 2018-06-11

    tags: linux/container/docker, network/http, network/http-server/nginx, network/proxy, network/transport-layer-security, source-code-management/git, source-code-management/gitlab

    [ permalink ]

    Container setup:

    • https://gist.github.com/netdesk/c1db2985b542f9916995139318e5a7ce
    • https://hub.docker.com/r/jwilder/nginx-proxy/
    • https://hub.docker.com/r/jrcs/letsencrypt-nginx-proxy-companion/

    Gitlab settings:

    • https://docs.gitlab.com/omnibus/docker/
    • https://docs.gitlab.com/ce/administration/environment_variables.html
    • https://docs.gitlab.com/omnibus/settings/ssl.html
    • https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template

    Performance considerations:

    • https://docs.gitlab.com/omnibus/settings/memory_constrained_envs.html (skip the cgroups section for Gitaly as we are already running in a container)
    • https://docs.gitlab.com/ee/update/#gitaly-omnibus-gitlab-configuration-structure-change for Gitlab 16 changes to Gitaly configuration
18. OMERO | Open Microscopy Environment (OME) 2018-05-03

    tags: cloud-computing, data, image, microscope, web

    [ permalink ]

    • https://idr.openmicroscopy.org/about/
    • https://github.com/openmicroscopy/openmicroscopy
    • https://github.com/IDR/idr-metadata
19. xkcd: Python Environment 2018-05-02

    tags: programming/python, programming/python/pip, programming/python/pypi, programming/python/virtualenv, xkcd

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20. Centos/RHEL 7 - Fix LVM boot issues after migration from ESXi to VirtualBox 2018-04-20

    tags: boot, bootloader/grub, filesystem, filesystem/lvm, fstab, linux, linux/centos, linux/kernel, linux/red-hat

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    Here are the steps I used to migrate a CentOS 7 VM from (presumably?) an ESXi server, to a local VirtualBox environment.

    The LVM volumes were not detected at boot, and after the boot timeout, the OS fell back to the Dracut emergency shell.

    • get a CentOS minimal installation CD
    • check the VM's resources and peripherals:
      • ensure there are no floppy drives (!)
      • setup CPU and RAM resources
      • check virtual drives
      • add an SCSI optical drive if needed
    • optional: convert the virtual drive images from VMDK to VDI
    • mount the CentOS installation disc
    • boot on the installation disc:
      • select "Troubleshooting", then "Rescue"
      • let the rescue utility detect filesystems and mountpoints
    • $ chroot to the detected environment
    • backup files:
      • /etc/fstab
      • /boot/grub/grub.cfg
    • under /boot, backup the initrd and initramfs for the current configuration (these will be overwritten)
    • compare the current /etc/fstab with the output of $ lsblk and $ blkid
    • if needed, manually edit /etc/fstab to use the appropriate block device UUIDs, identifiers and mountpoints
    • regenerate GRUB configuration:
      • $ grub2-mkconfig -o /boot/grub2/grub.cfg
    • if needed, reinstall GRUB:
      • $ grub-install /dev/sda
    • rebuild initrd:
      • $ mkinitrd --force /boot/<initrd_image> <kernel_version>
    • rebuild initramfs:
      • $ dracut --force <kernel_version>
    • exit the chroot
    • unmount the installation disc
    • reboot
    • optional but highly recommended: cross your fingers
    • ...
    • profit!