Skip to content

Instantly share code, notes, and snippets.

View denist-huma's full-sized avatar

Denis Trofimov denist-huma

View GitHub Profile
@posener
posener / go-table-driven-tests-parallel.md
Last active November 25, 2025 08:25
Be Careful with Table Driven Tests and t.Parallel()

Be Careful with Table Driven Tests and t.Parallel()

We Gophers, love table-driven-tests, it makes our unittesting structured, and makes it easy to add different test cases with ease.

Let’s create our table driven test, for convenience, I chose to use t.Log as the test function. Notice that we don't have any assertion in this test, it is not needed to for the demonstration.

func TestTLog(t *testing.T) {
	t.Parallel()
@krisleech
krisleech / renew-gpgkey.md
Last active December 3, 2025 23:51
Renew Expired GPG key

Renew GPG key

Given that your key has expired.

$ gpg --list-keys
$ gpg --edit-key KEYID

Use the expire command to set a new expire date:

@bgauduch
bgauduch / multiple-repository-and-identities-git-configuration.md
Last active December 3, 2025 12:06
Git config with multiple identities and multiple repositories

Setup multiple git identities & git user informations

/!\ Be very carrefull in your setup : any misconfiguration make all the git config to fail silently ! Go trought this guide step by step and it should be fine 😉

Setup multiple git ssh identities for git

  • Generate your SSH keys as per your git provider documentation.
  • Add each public SSH keys to your git providers acounts.
  • In your ~/.ssh/config, set each ssh key for each repository as in this exemple:
@MichaelSimons
MichaelSimons / RetrievingDockerImageSizes.md
Last active December 16, 2025 09:22
Retrieving Docker Image Sizes

Retrieving Docker Image Sizes

There are two metrics that are important to consider when discussing the size of Docker images.

  1. Compressed size - This is often referred to as the wire size. This affects how fast/slow images can be pulled from a registry. This impacts the first run experience on machines where images are not cached.
  2. Uncompressed size - This is often referred to as the size on disk. This affects how much local storage is required to support your Docker workloads.

The example commands shown below will work on Windows, MacOS, and Linux.

How to Measure the Compressed Size

GitHub pages deployment using SSH keys

  1. Create a GitHub workflow file;

    mkdir .github
    mkdir .github/worflows
    touch ci.yml
@tuxfight3r
tuxfight3r / kubect_patch.md
Last active January 20, 2024 19:40
kubectl configmap json patch

use kubectl to patch configmap via json patch operations (add/remove/replace/test)

## Add a new key to the existing configmap
$ kubectl patch cm demo-app-config --type json --patch '[{ "op": "add", "path": "/data/TEST_VALUE", "value": "test_key" }]'
configmap/demo-app-config patched

$ kubectl get cm demo-app-config -o json | jq .data.TEST_VALUE
"test_key"
# Source: https://gist.github.com/6fb3e7da327df9203d9d4c184fcb5831
##############################################################################
# Combining Argo CD (GitOps), Crossplane (Control Plane), And Kubevela (OAM) #
# https://youtu.be/eEcgn_gU3SM #
##############################################################################
# Referenced videos:
# - Argo CD - Applying GitOps Principles To Manage Production Environment In Kubernetes: https://youtu.be/vpWQeoaiRM4
# - Cloud-Native Apps With Open Application Model (OAM) And KubeVela: https://youtu.be/2CBu6sOTtwk