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Posts by Iizuki
Ok I got it working again. The issue was that I had updated my kubeconfig file, and the current-context setting had changed. This setting essentially selects which cluster kubectl targets. Now th...
I'm getting an error when trying to open a shell to a pod. This used to work. $ kubectl exec --tty --stdin --namespace my-ns my-pod -- sh Error from server (BadRequest): Upgrade request required ...
The simplest solution I managed to find is robusta. It still has a bunch of unnecessary features, but with the correct configuration it's possible to disable these. As a bonus, it nicely adds some...
They are not a part of git the way .gitignore files are. It's just a convention to add empty directories to git repositories. Normally git ignores empty directories altogether. Adding an empty fil...
Sometimes there are empty files named .gitkeep sprinkled around a repository. What are these files?
Global variables make the code hard to reason about This is especially visible when debugging. Say you have a function which errors. The stacktrace tells you where the function got it's arguments,...
What would be the simplest (and most lightweight) way of getting email notifications of failures in kubernetes clusters. Mostly interested in failing pods, so notifying on certain kubernetes event ...
The prefixes are explained in saml-metadata-2.0-os spec in section 1.1: "Notation" Prefix Explanation saml: This is the SAML V2.0 assertion namespace [SAMLCore]. The prefix is gen...
SAML service provider (and other types as well) metadata XMLs are full of prefixes like md: and ds:. What do these mean? To illustrate my point, here's a sample metadata file from Wikipedia (CC-BY...
With the --delete option of git-push: $ git push <remote-name> --delete <branch-name> For example: $ git push origin --delete my-branch
How to delete a branch from a remote in git? E.g. maybe you had this branch locally too, but you deleted it already according to this question. Now you want to get rid of the corresponding remote ...
You're very much on the right track. std::iter::FromIterator trait This trait is indeed what makes it work. In particular, both functions' return types implement the trait: std::result::Result&l...
You can separate the curly brackets with spaces, and instruct jinja to remove them afterwards: { {{- jinja_expression -}} }. That way the outer curly brackets are left untouched. The minus signs s...
A jinja template expression starts and ends with double curly brackets, which the templating engine consumes. But what if you need a single pair of curly brackets left in the output? Something lik...
According to my reading of the JSON Schema Spec, the answer is no. required array can contain elements which are not in the properties dictionary. The example schema in question seems to be valid....
In a JSON schema, do the required properties need to be a subset of properties? E.g. is this a valid schema, even though cookies isn't mentioned in properties? { "type": "object", "properti...
What are the differences between git apply and git am commands? Both seem to be used for applying patches to repositories. When should one be used over the other?
The default port is 3306. MariaDB is a fork of MySQL, and this is the default port for MySQL as well. Source.
What is the default port number of MariaDB database server? (Remembering defaults is surprisingly hard since usually you don't need to specify them..)
Compare $CI_COMMIT_BRANCH to your desired branch name in rules: # .gitlab-ci.yml stages: - test - deploy # This job will run always. test-job: stage: test image: bash script:...
By default Gitlab CI jobs run on any commit. I would like to restrict some of them to run only on commits to specific branches. How to do this in .gitlab-ci.yml?
There's no point. It just causes unnecessary clutter and confusion. The correct way is to configure a manual way for triggering the CI/CD pipeline. In most systems there should be an API endpoint ...
Well it was easier than I thought: git diff stash A note about the direction: This will show things which are present in the working directory but not present in the stash as added +. And vice ...
In git you can put your current changes aside for a moment with git stash. This is really neat but what often ends up happening is that you forget what was in there, and what was the state of the b...
Add the following to /etc/containers/registries.conf: unqualified-search-registries = ["docker.io"] [[registry]] location = "docker.io" Now you can pull just like you would in docker: podm...
