madsonic

# for chart version 2.3.41
datadog:
  logLevel: DEBUG
  kubeStateMetricsEnabled: false
  leaderElection: true
  collectEvents: true
  processAgent: 
    enabled: true
  dogstatsd:
    nonLocalTraffic: true

madsonic

#!/usr/bin/env bash

# 0.23.0 terragrunt migration script
# behaviour of find_in_parent_folders() has changed to use absolute path
# https://github.com/gruntwork-io/terragrunt/releases/tag/v0.23.0

# this has been test on macOS
# you might need to change some flags for certain distro of the commands used here

git stash save -u

madsonic

# dump as per normal
# column statistics should be off by default
mysqldump -p -u <user> -h <host> --all-databases --comments --dump-date --column-statistics=0 > dump.sql

# replace rdsadmin user with your master user
sed -i -e 's/DEFINER=`rdsadmin`@`localhost`/DEFINER=`<masteruser>`@`%`/g' dump.sql

# one liner if you need to pipe to a remote host without a dump file as output
# this method wont work if password input is required
mysqldump -p -u <user> -h <host>  \

madsonic

# annonymous
TOKEN=$(curl "https://auth.docker.io/token?service=registry.docker.io&scope=repository:ratelimitpreview/test:pull" \
  | jq -r .token) && curl --head -H "Authorization: Bearer $TOKEN" https://registry-1.docker.io/v2/ratelimitpreview/test/manifests/latest \
  | grep 'RateLimit'

# authenticated
# note that there should be no output
# https://docs.docker.com/docker-hub/download-rate-limit/#i-dont-see-any-ratelimit-headers
TOKEN=$(curl --user 'username:password' "https://auth.docker.io/token?service=registry.docker.io&scope=repository:ratelimitpreview/test:pull" | jq -r .token) \
  && curl --head -H "Authorization: Bearer $TOKEN" https://registry-1.docker.io/v2/ratelimitpreview/test/manifests/latest \

madsonic

# conditional expr
# select(.metadata.name == "abc") single test
# select(.metadata.name|test("abc.")) regex test
# final pipe expr prints in defined json shape
k get deploy --all-namespaces -o json | \
  jq '.items[] | select(.metadata.name|test("abc.") | not) | {"name":.metadata.name,"podSpec":.spec.template.spec}'

madsonic

# docs are too subtle and sparing with obvious use cases

# search on tag
tag: value

# exclusion
-tag: my-value

# search on facet
@facetname: value

madsonic

# update version
aws elasticbeanstalk update-environment --application-name <name> --environment-name <env> --version-label <version>

# update env var
aws elasticbeanstalk update-environment --environment-name my-env \
  --option-settings Namespace=aws:elasticbeanstalk:application:environment,OptionName=PARAM1,Value=ParamValue

madsonic

# rotate without restart if current connections are non SSL
for db in "db1" "db2"; do
  aws rds modify-db-instance \
    --db-instance-identifier "$db" \
    --ca-certificate-identifier "rds-ca-2019" \
    --apply-immediately \
    --no-certificate-rotation-restart
done

# viewing certs

madsonic

brew uninstall kubernetes-cli
brew install https://raw.githubusercontent.com/Homebrew/homebrew-core/d09d97241b17a5e02a25fc51fc56e2a5de74501c/Formula/kubernetes-cli.rb
brew pin kubernetes-cli

madsonic

command:
- "/bin/sh"
- "-c"
args:
- |
  echo hello
  i=0
  while ((i<5))
  do
  echo hello${i}