garethr

{
  "$schema": "http://json-schema.org/schema#",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "schemaVersion": {
      "type": "string"
    },
    "name": {
      "type": "string"

garethr

Using Tilt from within a container.

Tilt is great, but it doesn't currently run on Windows. But can we run it in a container on Docker Desktop for Windows instead?

First build a Docker image for Tilt using the Dockerfile in this Gist.

$ docker build -t garethr/tilt .

garethr

import glob
from collections import Counter

kinds = []

for filename in glob.iglob('**/*.yaml'):
    with open(filename, 'r') as handle:
        for line in handle:
            if line.strip().startswith('kind:'):
                kinds.append(line.strip()[5:])

garethr

import sys
import json
from collections import OrderedDict
from contextlib import contextmanager


def resolve_json_pointer(spec, reference):
    prefix, definitions, name = reference.split('/')
    return spec.get(definitions).get(name)

garethr

object {
  attr "version" {
    type     = string
    required = true
  }

  block_map "services" {
    block_type = "service"
    labels = ["name"]
    object {

garethr

$ docker run -it -v ${PWD}:/examples garethr/kubetest --tests /examples/tests /examples/app1.yaml --verbose
INFO /examples/app1.yaml should indicate which team owns the deployment

garethr

The following demo assumes a running minikube instance.

First grab access to the Docker socket for minikube. On *nix:

eval $(minikube docker-env)

On Windows:

garethr

Now we have a Europa registry, interacting with the API might be of interest.

Let's grab docker-ls for this demo from https://github.com/mayflower/docker-ls. You can either download the pre-build binaries or build a local docker image like so:

git clone https://github.com/mayflower/docker-ls.git
docker build -t docker-ls .

The following assumes you have a registry running based on the Compose file above, and you have your API token handy.

garethr

USER_PASSWORD=Pa55w0rd
USER_NAME=distelli
ROOT_PASSWORD=S3r10usPa55w0rd
DATABASE_NAME=europadb

garethr

Pre-generating Puppet certificates

On occasion you might have need to generate a set of certificates for a Puppet infrastructure, potentially as part of a provisioning process.

The following works but is not guarenteed to be secure or a good idea. If you follow these instructions then I'm assuming you know exactly what you're doing and you're solving an odd problem, or you're working on Puppet rather than with it.

First create a temporary master: