wiki.vacula.xyz - User contributions [en]

Kubernetes/BuildConfigs

2026-04-20T14:39:28Z

Dracula: Created page with "== Authentication to GitHub Enterprise == Notes: * Cannot use signed SSH keys because the <code>kubernetes.io/ssh-auth</code> secret config API does not support that *"

== Authentication to GitHub Enterprise ==
Notes:

* Cannot use signed SSH keys because the <code>kubernetes.io/ssh-auth</code> secret config API does not support that
*

InfluxDB

2026-04-06T19:23:54Z

Dracula: Created page with "== Bucket and Schema Operations == Delete a measurement from a bucket's schema: influx delete --bucket grafana --predicate '_measurement="memory_usage"' --start 1999-01-01T00:00:00Z --stop 2027-01-01T00:00:00Z Bulk delete measurements from a bucket's schema: while read line ; do influx delete --bucket grafana --predicate '_measurement=$line' --start 1999-01-01T00:00:00Z --stop 2027-01-01T00:00:00Z ; done < bucket_measurements.txt"

== Bucket and Schema Operations ==
Delete a measurement from a bucket's schema:
influx delete --bucket grafana --predicate '_measurement="memory_usage"' --start 1999-01-01T00:00:00Z --stop 2027-01-01T00:00:00Z
Bulk delete measurements from a bucket's schema:
while read line ; do influx delete --bucket grafana --predicate '_measurement=$line' --start 1999-01-01T00:00:00Z --stop 2027-01-01T00:00:00Z ; done < bucket_measurements.txt

Main Page

2026-04-06T19:02:48Z

Dracula: /* Technology */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

Note for myself:
jJJ2DaKPFRWynKBt9acXpTQTMLkoPhgkO7KXk9ML4ko=

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[InfluxDB]]
* [[KDE]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat IdM]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Red Hat OpenShift/Virtualization]]
* [[Telegraf]]
* [[Terraform]]
* [[Wayland]]
* [[Windows Subsystem for Linux (WSL)]]
* [[Vim]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Wayland

2026-03-20T02:32:01Z

Dracula: Created page with "Things that don't work on Wayland * Window shading (KDE bug: https://bugs.kde.org/show_bug.cgi?id=377162)"

Things that don't work on Wayland
* Window shading (KDE bug: https://bugs.kde.org/show_bug.cgi?id=377162)

Main Page

2026-03-20T02:29:38Z

Dracula: /* Technology */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

Note for myself:
jJJ2DaKPFRWynKBt9acXpTQTMLkoPhgkO7KXk9ML4ko=

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[KDE]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat IdM]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Red Hat OpenShift/Virtualization]]
* [[Terraform]]
* [[Wayland]]
* [[Windows Subsystem for Linux (WSL)]]
* [[Vim]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Vim

2026-03-10T18:11:01Z

Dracula:

Useful bits:
autocmd FileType yaml setlocal ai ts=2 sw=2 et
autocmd FileType yml setlocal ai ts=2 sw=2 et

Vim

2026-03-10T18:10:51Z

Dracula:

Useful bits:
autocmd FileType yaml setlocal ai ts=2 sw=2 et
autocmd FileType yaml setlocal ai ts=2 sw=2 et

Vim

2026-03-10T18:10:46Z

Dracula:

Useful bits:
autocmd FileType yaml setlocal ai ts=2 sw=2 et

autocmd FileType yaml setlocal ai ts=2 sw=2 et

Vim

2026-03-10T18:10:13Z

Dracula: Created page with "Useful bits:"

Useful bits:

Main Page

2026-03-10T18:10:03Z

Dracula: /* Technology */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

Note for myself:
jJJ2DaKPFRWynKBt9acXpTQTMLkoPhgkO7KXk9ML4ko=

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[KDE]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat IdM]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Red Hat OpenShift/Virtualization]]
* [[Terraform]]
* [[Windows Subsystem for Linux (WSL)]]
* [[Vim]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Main Page

2026-02-06T01:59:52Z

Dracula:

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

Note for myself:
jJJ2DaKPFRWynKBt9acXpTQTMLkoPhgkO7KXk9ML4ko=

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[KDE]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat IdM]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Red Hat OpenShift/Virtualization]]
* [[Terraform]]
* [[Windows Subsystem for Linux (WSL)]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Windows Subsystem for Linux (WSL)

2025-09-24T13:52:08Z

Dracula:

=== Troubleshooting ===

==== Cannot access the internet while using Cisco AnyConnect ====
Solution:
Add the following to <code>~\.wslconfig</code>
[experimental]
networkingMode=mirrored
dnsTunneling=true
Then restart wsl using
wsl --shutdown

==== Firefox Will Not Fully Scroll to Ends of Page ====
This seems to be an issue related to Wayland. To fix, the <code>MOZ_ENABLE_WAYLAND</code> environment variable must be set to 0:
MOZ_ENABLE_WAYLAND=0 firefox
To make this persistent, add it to <code>/etc/profile</code>
export MOZ_ENABLE_WAYLAND=0

Red Hat OpenShift/Virtualization

2025-08-27T12:25:45Z

Dracula:

How to move VMs from one namespace to another: https://access.redhat.com/solutions/7090765

Red Hat OpenShift/Virtualization

2025-08-27T12:25:38Z

Dracula: Created page with "How to move VMs from one namespace to another:"

How to move VMs from one namespace to another:

Red Hat IdM

2025-08-21T03:12:12Z

Dracula:

== Fix/Remove SSH Host Pubkey from IdM Record ==
Manifests as the following:
<nowiki>[lvacula@example.com@jumpbox ~]$ ssh root@10.0.0.1
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ED25519 key sent by the remote host is
SHA256:GoCT9/BWiOSs+gRXtwu2ZgaaaswtPc6YT7VmKOE5PL0.
Please contact your system administrator.
Add correct host key in /home/lvacula/.ssh/known_hosts to get rid of this message.
Offending ED25519 key in /var/lib/sss/pubconf/known_hosts:3
Host key for 10.0.0.1 has changed and you have requested strict checking.
Host key verification failed.</nowiki>
Fix by running
ipa host-mod --sshpubkey= host.example.com

Red Hat IdM

2025-08-21T03:10:29Z

Dracula: Created page with "== Fix/Remove SSH Host Pubkey from IdM Record == Manifests as the following: [lvacula@example.com@jumpbox ~]$ ssh root@10.0.0.1 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@..."

== Fix/Remove SSH Host Pubkey from IdM Record ==
Manifests as the following:
[lvacula@example.com@jumpbox ~]$ ssh root@10.0.0.1

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The fingerprint for the ED25519 key sent by the remote host is SHA256:GoCT9/BWiOSs+gRXtwu2ZgaaaswtPc6YT7VmKOE5PL0. Please contact your system administrator.

Add correct host key in /home/lvacula/.ssh/known_hosts to get rid of this message.

Offending ED25519 key in /var/lib/sss/pubconf/known_hosts:3

Host key for 10.0.0.1 has changed and you have requested strict checking.

Host key verification failed.
Fix by running
ipa host-mod --sshpubkey= host.example.com

Main Page

2025-08-21T03:07:55Z

Dracula: /* Technology */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[KDE]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat IdM]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Red Hat OpenShift/Virtualization]]
* [[Terraform]]
* [[Windows Subsystem for Linux (WSL)]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Main Page

2025-07-31T15:03:14Z

Dracula: /* Technology */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[KDE]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Red Hat OpenShift/Virtualization]]
* [[Terraform]]
* [[Windows Subsystem for Linux (WSL)]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

KDE

2025-07-30T05:17:48Z

Dracula:

== Removing (most) noto-fonts on Arch ==

# Remove the noto-fonts package using <code>sudo pacman -Rdd noto-fonts</code>
# Add <code>NoExtract = usr/share/fonts/noto/* !*NotoMono-* !*NotoSansDisplay-* !*NotoSansLinearB-* !*NotoSansMono-* !*NotoSansSymbols* !*NotoSerif-* !*NotoSerifDisplay-*</code> to <code>/etc/pacman.conf</code>
# Re-install noto-fonts as a dependency using <code>sudo pacman -S --asdeps noto-fonts</code>

KDE

2025-07-30T05:15:53Z

Dracula: Created page with "== Removing (most) noto-fonts on Arch == # Remove the noto-fonts package using <code>sudo pacman -Rdd noto-fonts</code> # Add to"

== Removing (most) noto-fonts on Arch ==

# Remove the noto-fonts package using <code>sudo pacman -Rdd noto-fonts</code>
# Add to

Main Page

2025-07-30T05:13:20Z

Dracula: /* Technology */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[KDE]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Terraform]]
* [[Windows Subsystem for Linux (WSL)]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Main Page

2025-07-27T21:27:52Z

Dracula: /* Book Notes */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Terraform]]
* [[Windows Subsystem for Linux (WSL)]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Anki

2025-06-02T16:08:31Z

Dracula:

== Good Facts to Know ==

* If you'll lose 5 minutes of your time ''over your lifetime'' because you didn't know something, it's worth memorizing it with Anki. [https://gwern.net/spaced-repetition#how-much-to-add]

== Card Design ==

* Include context clues for cards. For example, I might have a card "What does the PG provide?" with an extra field called "Context" to display "Ceph" on the card. This helps because I can mix all of my decks together without getting topics from different subjects confused with one another. Having this as a field saves me from having to write "...in the context of XYZ..." to every question.
* Do ''not'' include hints to the answer. If the hint is necessary, it should be part of the question and displayed by default.
* Include a source field. Even if it isn't visible on the card, it's useful to have recorded in case you need to verify the information.

== Misc Tips ==

=== Fix mpv Volume for Anki <ref>https://www.schoenitzer.de/blog/2021/Audio%20volume%20in%20Anki.html</ref>===
<nowiki>
echo "volume=80" > ~/.local/share/Anki2/mpv.conf
</nowiki>

<references />

Anki

2025-06-02T16:08:07Z

Dracula:

== Good Facts to Know ==

* If you'll lose 5 minutes of your time ''over your lifetime'' because you didn't know something, it's worth memorizing it with Anki. [https://gwern.net/spaced-repetition#how-much-to-add]

== Card Design ==

* Include context clues for cards. For example, I might have a card "What does the PG provide?" with an extra field called "Context" to display "Ceph" on the card. This helps because I can mix all of my decks together without getting topics from different subjects confused with one another. Having this as a field saves me from having to write "...in the context of XYZ..." to every question.
* Do ''not'' include hints to the answer. If the hint is necessary, it should be part of the question and displayed by default.
* Include a source field. Even if it isn't visible on the card, it's useful to have recorded in case you need to verify the information.

== Misc Tips ==

=== Fix mpv Volume for Anki ===
<nowiki>
echo "volume=80" > ~/.local/share/Anki2/mpv.conf
</nowiki>

Source: <ref>https://www.schoenitzer.de/blog/2021/Audio%20volume%20in%20Anki.html</ref>

<references />

Anki

2025-06-02T16:04:35Z

Dracula:

== Good Facts to Know ==

* If you'll lose 5 minutes of your time ''over your lifetime'' because you didn't know something, it's worth memorizing it with Anki. [https://gwern.net/spaced-repetition#how-much-to-add]

== Card Design ==

* Include context clues for cards. For example, I might have a card "What does the PG provide?" with an extra field called "Context" to display "Ceph" on the card. This helps because I can mix all of my decks together without getting topics from different subjects confused with one another. Having this as a field saves me from having to write "...in the context of XYZ..." to every question.
* Do ''not'' include hints to the answer. If the hint is necessary, it should be part of the question and displayed by default.
* Include a source field. Even if it isn't visible on the card, it's useful to have recorded in case you need to verify the information.

== Misc Tips ==

=== Fix mpv Volume for Anki ===
<nowiki>
echo "volume=80" > ~/.local/share/Anki2/mpv.conf
</nowiki>

Source: <ref>https://www.schoenitzer.de/blog/2021/Audio%20volume%20in%20Anki.html</ref>

* thing 1
*thing 2

<references />

Anki

2025-06-02T16:04:20Z

Dracula:

== Good Facts to Know ==

* If you'll lose 5 minutes of your time ''over your lifetime'' because you didn't know something, it's worth memorizing it with Anki. [https://gwern.net/spaced-repetition#how-much-to-add]

== Card Design ==

* Include context clues for cards. For example, I might have a card "What does the PG provide?" with an extra field called "Context" to display "Ceph" on the card. This helps because I can mix all of my decks together without getting topics from different subjects confused with one another. Having this as a field saves me from having to write "...in the context of XYZ..." to every question.
* Do ''not'' include hints to the answer. If the hint is necessary, it should be part of the question and displayed by default.
* Include a source field. Even if it isn't visible on the card, it's useful to have recorded in case you need to verify the information.

== Misc Tips ==

=== Fix mpv Volume for Anki ===
<nowiki>
echo "volume=80" > ~/.local/share/Anki2/mpv.conf
</nowiki>

Source: <ref>https://www.schoenitzer.de/blog/2021/Audio%20volume%20in%20Anki.html</ref>

<references />

Anki

2025-06-02T15:58:23Z

Dracula:

== Good Facts to Know ==

* If you'll lose 5 minutes of your time ''over your lifetime'' because you didn't know something, it's worth memorizing it with Anki. [https://gwern.net/spaced-repetition#how-much-to-add]

== Card Design ==

* Include context clues for cards. For example, I might have a card "What does the PG provide?" with an extra field called "Context" to display "Ceph" on the card. This helps because I can mix all of my decks together without getting topics from different subjects confused with one another. Having this as a field saves me from having to write "...in the context of XYZ..." to every question.
* Do ''not'' include hints to the answer. If the hint is necessary, it should be part of the question and displayed by default.
* Include a source field. Even if it isn't visible on the card, it's useful to have recorded in case you need to verify the information.

== Misc Tips ==

=== Fix mpv Volume for Anki ===
<nowiki
echo "volume=80" > ~/.local/share/Anki2/mpv.conf
</nowiki>

Source: <ref>https://www.schoenitzer.de/blog/2021/Audio%20volume%20in%20Anki.html</ref>

<references />

Anki

2025-06-02T15:57:13Z

Dracula:

== Good Facts to Know ==

* If you'll lose 5 minutes of your time ''over your lifetime'' because you didn't know something, it's worth memorizing it with Anki. [https://gwern.net/spaced-repetition#how-much-to-add]

== Card Design ==

* Include context clues for cards. For example, I might have a card "What does the PG provide?" with an extra field called "Context" to display "Ceph" on the card. This helps because I can mix all of my decks together without getting topics from different subjects confused with one another. Having this as a field saves me from having to write "...in the context of XYZ..." to every question.
* Do ''not'' include hints to the answer. If the hint is necessary, it should be part of the question and displayed by default.
* Include a source field. Even if it isn't visible on the card, it's useful to have recorded in case you need to verify the information.

== Misc Tips ==

=== Fix mpv Volume for Anki ===
<nowiki
echo "volume=80" > ~/.local/share/Anki2/mpv.conf
</nowiki>

Source: https://www.schoenitzer.de/blog/2021/Audio%20volume%20in%20Anki.html

Kubernetes

2025-05-01T20:44:32Z

Dracula:

== Concepts ==
Decoupling:
* run resources anywhere
* don't tie an application to a specific server
* don't store configuration within the application

== Usage ==
<nowiki>
# Create a deployment of 3 nginx services called "salesweb"
kubectl create deployment salesweb --image=nginx:latest --replicas=3
# Create a service for the salesweb deployment to use port 80 inside the containers
kubectl expose deployment salesweb --port=80
# Tell the ingress controller to redirect any traffic (including sub-paths) on "sales.example.com" to the salesweb service
kubectl create ingress salesweb --rule="sales.example.com/*=salesweb:80"
</nowiki>

== Tips and Tricks ==
Don't write YAML files directly, generate them. Use <code>kubectl create</code> with the options <code>--dry-run=client -o yaml</code> to generate the YAML files. Alternatively, use a <code>kubectl get</code> command with <code>-o yaml</code>. Use <code>kubectl apply -f</code> to create or update resources from a YAML file.

Kubernetes

2025-05-01T20:44:21Z

Dracula:

== Concepts ==
Decoupling:
* run resources anywhere
* don't tie an application to a specific server
* don't store configuration within the application

== Usage
<nowiki>
# Create a deployment of 3 nginx services called "salesweb"
kubectl create deployment salesweb --image=nginx:latest --replicas=3
# Create a service for the salesweb deployment to use port 80 inside the containers
kubectl expose deployment salesweb --port=80
# Tell the ingress controller to redirect any traffic (including sub-paths) on "sales.example.com" to the salesweb service
kubectl create ingress salesweb --rule="sales.example.com/*=salesweb:80"
</nowiki>

== Tips and Tricks ==
Don't write YAML files directly, generate them. Use <code>kubectl create</code> with the options <code>--dry-run=client -o yaml</code> to generate the YAML files. Alternatively, use a <code>kubectl get</code> command with <code>-o yaml</code>. Use <code>kubectl apply -f</code> to create or update resources from a YAML file.

Kubernetes

2025-05-01T15:25:41Z

Dracula: /* Tips and Tricks */

== Concepts ==
Decoupling:
* run resources anywhere
* don't tie an application to a specific server
* don't store configuration within the application

== Tips and Tricks ==
Don't write YAML files, generate them. Use <code>kubectl create</code> with the options <code>--dry-run=client -o yaml</code> to generate the YAML files. Alternatively, use a <code>kubectl get</code> command with <code>-o yaml</code>. Use <code>kubectl apply -f</code> to create or update resources from a YAML file.

Kubernetes

2025-05-01T14:48:38Z

Dracula: /* Concepts */

Kubernetes

2025-05-01T14:31:52Z

Dracula: Created page with "== Concepts == Decoupling: * run resources anywhere * don't tie an application to a specific server * don't store configuration within the application"

== Concepts ==
Decoupling:
* run resources anywhere
* don't tie an application to a specific server
* don't store configuration within the application

Red Hat Satellite

2025-04-21T14:45:53Z

Dracula: /* Using Satellite as a Dynamic Inventory Source for Ansible */

== Parts of Satellite ==

=== Host Groups ===
Host groups are best used to group systems by similar configurations.

== Guides ==

=== Using Satellite as a Dynamic Inventory Source for Ansible ===
See https://wiki.vacula.xyz/index.php/Ansible#Satellite%2FForeman_Dynamic_Inventory

=== Adding a Custom Yum Product ===
Red Hat blog post with example: https://www.redhat.com/en/blog/epel-8-repo-satellite-6
# In <code>Content -> Products</code>, create a new product and add a repository.
# In <code>Hosts -> Content Hosts</code>, select all hosts that you want to retroactively add the product to. Use <code>Action -> Manage Subscriptions</code> to add the subscriptions.
# In <code>Content -> Activation Keys</code>, add the subscription to the Activation Key. Optionally, enable the repo in the <code>Repository Sets</code> for the key.

=== Finding a Host that is *not* in Specific Host Collections ===
(NOT (host_collection = "host_collection_name1")) AND (NOT ( host_collection = "host_collection_name2" )) AND (NOT ( host_collection = "host_collection_name3" ))

== Gotchas ==
=== RHEL for Virtual Datacenters licenses added to activation key ===
Manifests as:
<nowiki>
Failed to enable Red Hat subscription on the installed system.
Your Red Hat subscription might be invalid (such as due to an expired developer subscription).
Would you like to ignore this and continue with the installation?
Please respond 'yes' or 'no':
</nowiki>
Resolution:
* Remove any virtual datacenters license from the activation key

=== Servers are not configured with a sub-version of RHEL ===
Manifests as:

* Curl errors when using dnf, `[Operation too slow. Less than 1000 bytes/sec transferred the last 30 seconds]`
* Unable to select a minor version of RHEL on system purpose screen

Resolution:

* Add the repositories for the minor version to the content view, not just the major version

=== Incorrect Ansible collection installation location ===
Manifests as:
* "couldn't resolve module/action 'community.general.redhat_subscription" when running an Ansible role

Resolution:
* <code>ansible-galaxy collection install community.general -p /usr/share/ansible/collections --force</code>

Red Hat Satellite

2025-04-21T14:45:33Z

Dracula:

== Parts of Satellite ==

=== Host Groups ===
Host groups are best used to group systems by similar configurations.

== Guides ==

=== Using Satellite as a Dynamic Inventory Source for Ansible ===
See

=== Adding a Custom Yum Product ===
Red Hat blog post with example: https://www.redhat.com/en/blog/epel-8-repo-satellite-6
# In <code>Content -> Products</code>, create a new product and add a repository.
# In <code>Hosts -> Content Hosts</code>, select all hosts that you want to retroactively add the product to. Use <code>Action -> Manage Subscriptions</code> to add the subscriptions.
# In <code>Content -> Activation Keys</code>, add the subscription to the Activation Key. Optionally, enable the repo in the <code>Repository Sets</code> for the key.

=== Finding a Host that is *not* in Specific Host Collections ===
(NOT (host_collection = "host_collection_name1")) AND (NOT ( host_collection = "host_collection_name2" )) AND (NOT ( host_collection = "host_collection_name3" ))

== Gotchas ==
=== RHEL for Virtual Datacenters licenses added to activation key ===
Manifests as:
<nowiki>
Failed to enable Red Hat subscription on the installed system.
Your Red Hat subscription might be invalid (such as due to an expired developer subscription).
Would you like to ignore this and continue with the installation?
Please respond 'yes' or 'no':
</nowiki>
Resolution:
* Remove any virtual datacenters license from the activation key

=== Servers are not configured with a sub-version of RHEL ===
Manifests as:

* Curl errors when using dnf, `[Operation too slow. Less than 1000 bytes/sec transferred the last 30 seconds]`
* Unable to select a minor version of RHEL on system purpose screen

Resolution:

* Add the repositories for the minor version to the content view, not just the major version

=== Incorrect Ansible collection installation location ===
Manifests as:
* "couldn't resolve module/action 'community.general.redhat_subscription" when running an Ansible role

Resolution:
* <code>ansible-galaxy collection install community.general -p /usr/share/ansible/collections --force</code>

Ansible

2025-04-21T14:45:02Z

Dracula: /* Satellite/Foreman Dynamic Inventory */

== Inventories ==

=== Satellite/Foreman Dynamic Inventory ===
Create a file ending in "foreman.yml" with the following content:
<nowiki>---
plugin: redhat.satellite.foreman
validate_certs: False
url: https://satellite.example.com
user: USERNAME_FOR_SATELLITE
password: PASSWORD_FOR_SATELLITE</nowiki>

== Navigator ==
Ansible Navigator is a TUI for running Ansible playbooks, managing inventory, etc...

=== Install ===
python3 -m pip install ansible-navigator --user

=== Config ===
Quick generate with <code>ansible-navigator settings --sample</code>

My <code>~/.ansible-navigator.yml</code> config
<nowiki>---
ansible-navigator:
playbook-artifact:
# Disable playbook artifacts from littering the directory
enable: False
</nowiki>

Ansible

2025-04-21T14:44:55Z

Dracula:

== Inventories ==

=== Satellite/Foreman Dynamic Inventory ===
Create a file ending in "foreman.yml" with the following content:
<nowiki>---
plugin: redhat.satellite.foreman
validate_certs: False
url: https://satellite.example.com
user: USERNAME_FOR_SATELLITE
password: PASSWORD_FOR_SATELLITE
</nowiki>

== Navigator ==
Ansible Navigator is a TUI for running Ansible playbooks, managing inventory, etc...

=== Install ===
python3 -m pip install ansible-navigator --user

=== Config ===
Quick generate with <code>ansible-navigator settings --sample</code>

My <code>~/.ansible-navigator.yml</code> config
<nowiki>---
ansible-navigator:
playbook-artifact:
# Disable playbook artifacts from littering the directory
enable: False
</nowiki>

Main Page

2025-04-09T21:19:14Z

Dracula: /* Book Notes */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Terraform]]
* [[Windows Subsystem for Linux (WSL)]]

=== Book Notes ===

* [[Notes on Atomic Habits (James Clear)]]
* [[Notes on Art and Fear (Bayles and Orland)]]
* [[Notes on Steal Like An Artist (Austin Kleon)]]
* [[Notes on Show Your Work (Austin Kleon)]]
* [[Notes on Keep Going (Austin Kleon)]]
* [[Notes on Business for the Right-Brained (M.C.A. Hogarth)]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Red Hat Satellite

2025-03-20T03:05:21Z

Dracula: /* Guides */

== Parts of Satellite ==

=== Host Groups ===
Host groups are best used to group systems by similar configurations.

== Guides ==

=== Adding a Custom Yum Product ===
Red Hat blog post with example: https://www.redhat.com/en/blog/epel-8-repo-satellite-6
# In <code>Content -> Products</code>, create a new product and add a repository.
# In <code>Hosts -> Content Hosts</code>, select all hosts that you want to retroactively add the product to. Use <code>Action -> Manage Subscriptions</code> to add the subscriptions.
# In <code>Content -> Activation Keys</code>, add the subscription to the Activation Key. Optionally, enable the repo in the <code>Repository Sets</code> for the key.

=== Finding a Host that is *not* in Specific Host Collections ===
(NOT (host_collection = "host_collection_name1")) AND (NOT ( host_collection = "host_collection_name2" )) AND (NOT ( host_collection = "host_collection_name3" ))

== Gotchas ==
=== RHEL for Virtual Datacenters licenses added to activation key ===
Manifests as:
<nowiki>
Failed to enable Red Hat subscription on the installed system.
Your Red Hat subscription might be invalid (such as due to an expired developer subscription).
Would you like to ignore this and continue with the installation?
Please respond 'yes' or 'no':
</nowiki>
Resolution:
* Remove any virtual datacenters license from the activation key

=== Servers are not configured with a sub-version of RHEL ===
Manifests as:

* Curl errors when using dnf, `[Operation too slow. Less than 1000 bytes/sec transferred the last 30 seconds]`
* Unable to select a minor version of RHEL on system purpose screen

Resolution:

* Add the repositories for the minor version to the content view, not just the major version

=== Incorrect Ansible collection installation location ===
Manifests as:
* "couldn't resolve module/action 'community.general.redhat_subscription" when running an Ansible role

Resolution:
* <code>ansible-galaxy collection install community.general -p /usr/share/ansible/collections --force</code>

Main Page

2025-03-06T15:09:09Z

Dracula: /* Book Notes */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Terraform]]
* [[Windows Subsystem for Linux (WSL)]]

=== Book Notes ===

* [[Notes on Atomic Habits (James Clear)]]
* [[Notes on Art and Fear (Bayles and Orland)]]
* [[Notes on Steal Like An Artist (Austin Kleon)]]
* [[Notes on Show Your Work (Austin Kleon)]]
* [[Notes on Keep Going (Austin Kleon)]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Main Page

2025-02-18T22:08:05Z

Dracula: /* Technology */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[Kubernetes]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Terraform]]
* [[Windows Subsystem for Linux (WSL)]]

=== Book Notes ===

* [[Notes on Atomic Habits (James Clear)]]
* [[Notes on Art and Fear (Bayles and Orland)]]
* [[Notes on Steal Like An Artist (Austin Kleon)]]
* [[Notes on Keep Going (Austin Kleon)]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Red Hat Satellite

2025-01-08T22:28:24Z

Dracula: /* Gotchas */

== Parts of Satellite ==

=== Host Groups ===
Host groups are best used to group systems by similar configurations.

== Guides ==

=== Adding a Custom Yum Product ===
Red Hat blog post with example: https://www.redhat.com/en/blog/epel-8-repo-satellite-6
# In <code>Content -> Products</code>, create a new product and add a repository.
# In <code>Hosts -> Content Hosts</code>, select all hosts that you want to retroactively add the product to. Use <code>Action -> Manage Subscriptions</code> to add the subscriptions.
# In <code>Content -> Activation Keys</code>, add the subscription to the Activation Key. Optionally, enable the repo in the <code>Repository Sets</code> for the key.

== Gotchas ==
=== RHEL for Virtual Datacenters licenses added to activation key ===
Manifests as:
<nowiki>
Failed to enable Red Hat subscription on the installed system.
Your Red Hat subscription might be invalid (such as due to an expired developer subscription).
Would you like to ignore this and continue with the installation?
Please respond 'yes' or 'no':
</nowiki>
Resolution:
* Remove any virtual datacenters license from the activation key

=== Servers are not configured with a sub-version of RHEL ===
Manifests as:

* Curl errors when using dnf, `[Operation too slow. Less than 1000 bytes/sec transferred the last 30 seconds]`
* Unable to select a minor version of RHEL on system purpose screen

Resolution:

* Add the repositories for the minor version to the content view, not just the major version

=== Incorrect Ansible collection installation location ===
Manifests as:
* "couldn't resolve module/action 'community.general.redhat_subscription" when running an Ansible role

Resolution:
* <code>ansible-galaxy collection install community.general -p /usr/share/ansible/collections --force</code>

SSH

2025-01-02T17:23:34Z

Dracula:

== Troubleshooting ==

=== Invalid Host Key Length ===
Manifests as {{code|Bad server host key: Invalid key length}}

Fix: <code>ssh -o RSAMinSize=1024 host</code>

SSH

2025-01-02T17:23:27Z

Dracula:

== Troubleshooting ==

=== Invalid Host Key Length ===
Manifests as {{code|Bad server host key: Invalid key length}}

Fix: <code>ssh -o RSAMinSize\=1024 host</code>

SSH

2025-01-02T17:23:08Z

Dracula:

== Troubleshooting ==

=== Invalid Host Key Length ===
Manifests as {{code|Bad server host key: Invalid key length}}

Fix: {{code|ssh -o RSAMinSize\=1024 host}}

SSH

2025-01-02T17:22:45Z

Dracula:

== Troubleshooting ==

=== Invalid Host Key Length ===
Manifests as {{code|Bad server host key: Invalid key length}}
Fix: {{code|"ssh -o RSAMinSize=1024 host"}}

SSH

2025-01-02T17:22:34Z

Dracula: Created page with "== Troubleshooting == === Invalid Host Key Length === Manifests as {{code|Bad server host key: Invalid key length}} Fix: {{code|ssh -o RSAMinSize=1024 host}}"

== Troubleshooting ==

=== Invalid Host Key Length ===
Manifests as {{code|Bad server host key: Invalid key length}}
Fix: {{code|ssh -o RSAMinSize=1024 host}}

Main Page

2025-01-02T17:21:16Z

Dracula: /* Technology */

Hi there! This is my wiki that contains random notes of things I've learned. I don't attest to the quality, quantity, or accuracy of any page, but I hope I help you somehow.

== Primary Items ==

=== General ===

* [[Anki]]

=== Technology ===
* [[Ansible]]
* [[Notes from RH Summit/Ansiblefest 2024]]
* [[Project Management]]
* [[SSH]]
* [[Red Hat Satellite]]
** [[Red Hat Satellite/Partition Tables]]
* [[Terraform]]
* [[Windows Subsystem for Linux (WSL)]]

=== Book Notes ===

* [[Notes on Atomic Habits (James Clear)]]
* [[Notes on Art and Fear (Bayles and Orland)]]
* [[Notes on Steal Like An Artist (Austin Kleon)]]
* [[Notes on Keep Going (Austin Kleon)]]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

Template:Quote

2025-01-02T16:38:36Z

Dracula: Created page with "<blockquote class="templatequote"><div class="Bug6200">{{{text|{{{quote|{{{1|<noinclude>{{lorem ipsum}}</noinclude><includeonly>{{error|Error: No text given for quotation (or equals sign used in the actual argument to an unnamed parameter)}}</includeonly>}}}}}}}}}</div>{{#if:{{{sign|{{{cite|{{{2|<noinclude>TRUE</noinclude>}}}}}}}}} |<div class="templatequotecite">—{{{sign|{{{cite|{{{2|<noinclude>Someone</noinclude>}}}}}}}}}{{#if:{{{source|{..."

<blockquote class="templatequote"><div class="Bug6200">{{{text|{{{quote|{{{1|<noinclude>{{lorem ipsum}}</noinclude><includeonly>{{error|Error: No text given for quotation (or equals sign used in the actual argument to an unnamed parameter)}}</includeonly>}}}}}}}}}</div>{{#if:{{{sign|{{{cite|{{{2|<noinclude>TRUE</noinclude>}}}}}}}}}
|<div class="templatequotecite">—{{{sign|{{{cite|{{{2|<noinclude>[[Someone's full name|Someone]]</noinclude>}}}}}}}}}{{#if:{{{source|{{{3|<noinclude>TRUE</noinclude>}}}}}}
|, <cite>{{{source|{{{3|<noinclude>Source</noinclude>}}}}}}</cite>
}}</div>
}}</blockquote><noinclude>
{{documentation}}
<templatedata>
{
"params": {
"quote": {
"aliases": [
"1",
"text"
],
"label": "Quote",
"description": "Content to quote",
"type": "string",
"required": true
},
"sign": {
"aliases": [
"2"
],
"label": "Sign",
"description": "Sign or authorship of quote",
"suggested": true
},
"cite": {},
"source": {
"aliases": [
"3"
],
"label": "source",
"description": "The source of the material",
"suggested": true
}
},
"paramOrder": [
"quote",
"sign",
"source",
"cite"
]
}
</templatedata>
</noinclude>

Template:Warning

2025-01-02T16:37:12Z

Dracula: Created page with "<div class="note warning"> {{#if: {{{2|}}} | <h5>{{{1}}}</h5>{{{2}}} | {{{1}}} }} </div> <noinclude> <templatedata> { "params": { "1": { "label": "Title", "description": "title", "type": "string", "required": true }, "2": { "label": "Message", "description": "message", "type": "content", "required": true } }, "paramOrder": [ "1", "2" ], "description": "Inserts a warning box inline with the content" } </templatedata> </noinclude>"

<div class="note warning">
{{#if: {{{2|}}} | <h5>{{{1}}}</h5>{{{2}}} | {{{1}}} }}
</div>
<noinclude>
<templatedata>
{
"params": {
"1": {
"label": "Title",
"description": "title",
"type": "string",
"required": true
},
"2": {
"label": "Message",
"description": "message",
"type": "content",
"required": true
}
},
"paramOrder": [
"1",
"2"
],
"description": "Inserts a warning box inline with the content"
}
</templatedata>
</noinclude>