ppanyukov

# Shows how to get auth token for VSTS (Azure Devops) from Azure CLI.
#
# Extracted from various github projects: Azure CLI and Azure SDK for Go
# See: https://github.com/Azure/azure-sdk-for-go/blob/ca5ebc8601ba1af17b289bb42161b7afb496423f/eng/common/scripts/Helpers/DevOps-WorkItem-Helpers.ps1#L17

# VSTS / Azure Devops resource identifier is: "499b84ac-1321-427f-aa17-267ca6975798"

organisation="your_org"
project="your_project"

ppanyukov

---
# This creates a deployment where each pod has two containers:
#   - Docker Server: the actual docker engine.
#   - Docker Client: simple Ubuntu instance with docker cli so we can
#     test the docker things. In practice this would be some CI agent
#     like Azure Devops agent or Jenkins or anything at all.
# 
# After this deployment is created, wait for a bit for docker CLI to be installed
# in the client container. Then shell into it and use docker commands like docker build etc
# to test that things actually work.

ppanyukov

# This is a hack to obtain azurerm_user_assigned_identity data item from
# the cluster.identity object. 
# 
# The reason we need this is depending on the kind of identity (SystemAssigned, 
# UserAssigned) we have different fields in that object. In particular if we
# have UserAssigned identity, the value of principal_id will be empty, and
# we need to assign roles to it like Network Contributor.
# 
# To use:
#   # Grab the cluster data item

ppanyukov

// Problem: tags in Azure are an objects like this:
// {tag_name: tag_value, tag_name2: tag_value2}
//
// What we want is to list these as table with name,value columns.
// The way I found is to convert the tag objects into arrays by 
// simple text replace and then we can tag and value by index and 
// can project them as columns. :) 
Resources
| project tags
| extend tags = tostring(tags)

ppanyukov

# How to use dockerised version Azure CLI (or anything else)
# in a totally transparent way. This solves several challenges:
#   - Persistent login. Don't want to login every time.
#   - Container startup time. It can be noticable.
#   - Access to host's disk.
#   - Run without ever using "docker" command.
#
# WINDOWS NOTE:
#   - You *will* run into volume mapping issues on Windows, sadly.
#   - Either remove any args with '-v` and 'v` and then everything

ppanyukov

#!/usr/bin/env pwsh

# Very very small demo of Powerhell and how to use
# Azure CLI from within it.

# These should be required for all scripts.
# The first says to stop at any failure, almost same as bash 'set -e'
# except it does not apply to external commands unfortunately.
# The second one is to make sure informational messages are written.
# See: https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_preference_variables?view=powershell-7

ppanyukov

package main

import (
	"fmt"
	"unsafe"
)

// A demo of things you can do with strings and []byte slices
// in a dangerous and exciting ways. I got here by having to verify
// if two given strings point to the same storage in memory.

ppanyukov

package main

import (
	"encoding/json"
	"fmt"
	"unsafe"
)

// dirtyCast converts from []Foo to []Bar without copy.
func dirtyCast(foos []Foo) []Bar {

ppanyukov

---
# Sample configuration for metric generation.
# This is used to create random but repeatable
# set of metrics to populate Prometheus TSDB
# for further benchmarks etc.
#
# WORK IN PROGRESS

# TODO:
#   - where do we configure the sample interval?

ppanyukov

#!/usr/bin/env bash
set -eu

# Noddy script to encrypt/decrypt files using openssl private (ssh) key.
# Works with files and stdin.
# Results are stdout.
#
# Requirements:
#   - openssl
#   - ssh private key: ~/.ssh/id_rsa