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Episode 234: Getting Started with OpenShift


Containers are amazing but managing them one by one can be a nightmare! Steve Ovens joins us as we discuss the best way to manage container workloads with tools like OpenShift and OKD.

-- During The Show -- 01:12 - Dave Follows up from EP 212 - Dave
  • Avantree Bluetooth
    • Play/Pause works
    • Volume Buttons change headset volume not desktop volume
    • Mic is clear
    • Not USB-C
    • Another Dongle
    • Volume issues in Mic mode
03:45 - Multitrack recording under Linux? - Ryan
  • Get Jacked from JB
  • RME is considered High End
  • Studio uses Axia
  • Try Pipewire on Fedora
  • Try using individual USB Audio devices
  • Scarlett 18i8 3rd Gen USB Audio
11:00 - Managing a Cert Authority - Mike
  • Jamielinux.com link
  • Cert Manager
13:22 - Nextcloud hosting provider vs self hosting - Rodney
  • Use block storage (S3 Compatible Storage)
  • OVH - Supplemented by Canadian GOV
  • Kimsufi - Where OVH servers go to die (still a good option)
15:00 Caller - Tony
  • From the Chat - ZFS/BTRFS snapshots
  • Clonezilla
  • Hypervisor can lie about disk flushes, this breaks ZFS/BTRFS
  • HDD Passthrough solves this
  • IX Systems Post about virtualizing FreeNAS
25:15 Pick of the Week
  • Open RGB
  • OpenSource RGB light control
26:05 Gadget of the Week
  • Ruggtek RTL 310
    • 10.1 1920 x 1200 Display
    • Multi-Touch
    • Intel Quad-Core
    • 4GB RAM
    • 64GB RAM
    • Comes with Ubuntu, Fedora, OpenSUSE
  • Ruggtek RPL 550
    • 5.5" 1080 x 1920 Display
    • Intel Quad-Core
    • 4GB RAM
    • 64GB Storage
    • Comes with Ubuntu, Fedora, OpenSUSE
28:30 Containers/OpenShift
  • Containers isolate processes with Cgroups
  • System level containers
    • Similar to VMs
    • LXD
  • Application level containers

    • Used by most businesses
    • Kubernetes
    • OpenShift/OKD
    • Docker
    • Podman
  • Docker runs as root

  • Podman is more modern and fixes this

  • Fedora CoreOS

    • Made for running containers
    • Uses RPM OStree vs standard packages
    • Runs podman not docker
  • OCI compliant - cross platform compliant containers

  • OKD

  • OKD Github

  • SSH into containers

    • You can
    • Not by default
    • You really shouldn't
  • Exec into a container is similar to SSH

  • Containers are supposed to be disposable

  • Container Management

    • Kubernetes
    • OpenShift/OKD
    • Many others
  • To install you need to know

    • SSH
    • Basic Networking
    • Yaml
  • Container Management gets you

    • Load Balancing
    • High Availability
    • Monitoring
    • etc
  • Containers are ephemeral by default

  • Containers typically have a shared storage backend

  • OpenShift/OKD Takes care of a lot of networking for you

  • There are two networks involved

    • Communication - Container to Container
    • LAN - Traditional Network
  • docs.okd.io

  • Katacoda

54:05 Facefish
  • Netlab 360
  • Dropper and Rootkit
  • Ring 3 layer
  • Backdoor can
    • Upload device information
    • Steal user credentials
    • Bounce Shell
    • Execute commands
Call to Action
  • We will have community rooms/booths

  • Matrix Chat (Element) will be used again this year

  • SELF will be virtual this year, hosted again by yours truly!

  • SELF Call for Talks

  • SELF dates June 10-12

  • Email volunteers@minddripmedia.com with your skill set and contact details

-- The Extra Credit Section --

For links to the articles and material referenced in this week's episode check out this week's page from our podcast dashboard!

This Episode's Podcast Dashboard

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Join us in our dedicated chatroom #GeekLab:linuxdelta.com on Matrix

-- Stay In Touch --

Find all the resources for this show on the Ask Noah Dashboard

Ask Noah Dashboard

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-- Twitter --

  • Noah - Kernellinux
  • Ask Noah Show
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Special Guest: Steve Ovens.

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 2021-06-02  56m