magickatt

#!/bin/bash

NAME=test
NAMESPACE=default
RESOURCES=service,role.rolebinding # Comma-delimited

kubectl get -n $NAMESPACE $RESOURCES -o name \
  | xargs -I % kubectl label -n $NAMESPACE % app.kubernetes.io/managed-by=Helm
kubectl get -n $NAMESPACE $RESOURCES -o name \
  | xargs -I % kubectl annotate -n $NAMESPACE % meta.helm.sh/release-name=$NAME

magickatt

# https://stackoverflow.com/a/22981757
import ctypes
so_name='/usr/lib64/libgmp.so.10' # or /usr/lib/libgmp.so, etc
var_name='__gmp_version'
L=ctypes.cdll.LoadLibrary(so_name)
v=ctypes.c_char_p.in_dll(L,var_name)
print(v.value)

magickatt

apiVersion: v1
kind: ServiceAccount
metadata:
  # Create a GKE Service Account that binds to a GCP Service Account
  name: my_service_gke_serviceaccount
  namespace: default
  annotations:
    iam.gke.io/gcp-service-account: my-project-gcp-serviceaccount@project-123456.iam.gserviceaccount.com
---
apiVersion: v1

magickatt

locals {
  gcp_project_id           = "project-123456"
  gke_namespace            = "default"
  gke_service_account_name = "my-service-gke-serviceaccount"
}

# GCP Service Account (not to be confused with the GKE Service Account)
resource "google_service_account" "my_service" {
  account_id   = "my_service_gcp_serviceaccount"
  display_name = "my_service"

magickatt

name: Validate Helm charts

on:
  push:
    branches: [ main, master ]
  pull_request:

jobs:
  validate:
    runs-on: ubuntu-latest

magickatt

name: Validate Helm chart

on:
  push:
    branches: [ main, master ]
  pull_request:

jobs:
  validate:
    runs-on: ubuntu-latest

magickatt

#!/bin/bash
IMAGE_NAME=test-1

# 1-liner
until [ $(docker inspect -f "{{json .State.Status }}" $(docker ps -a -q --filter ancestor=$IMAGE_NAME --format="{{.ID}}" | head -n 1)) == '"running"' ]; do echo "Waiting for container to start..." && sleep 1; done

# More readable
CONTAINER_ID=$(docker ps --all --quiet --filter ancestor=$IMAGE_NAME --format="{{.ID}}" | head -n 1)
CONTAINER_STATUS=$(docker inspect --format "{{json .State.Status }}" $CONTAINER_ID)
until [ $CONTAINER_STATUS == '"running"' ]

magickatt

class Animal:
    def what_am_i(self) -> str:
        return "I am a "


class Fox(Animal):
    def what_am_i(self) -> str:
        return super().what_am_i() + "Fox"

magickatt

#!/bin/bash

NAMESPACE=test
kubectl proxy &
kubectl get namespace $NAMESPACE -o json |jq '.spec = {"finalizers":[]}' >temp.json
curl -k -H "Content-Type: application/json" -X PUT --data-binary @temp.json 127.0.0.1:8001/api/v1/namespaces/$NAMESPACE/finalize
killall kubectl

magickatt

echo '{"my-field": "something"}' > example.json

cat example.json | jq '.my-field' # Incorrect
# jq: error: key/0 is not defined at <top-level>, line 1: .my-field     
# jq: 1 compile error

cat example.json | jq '."my-field"' # Correct
# "something"