jonashackt

# Roles which require host/groups to have certain variables set 
# see (scroll down!) https://molecule.readthedocs.io/en/latest/configuration.html#provisioner & https://github.com/ansible/molecule/issues/1037
# like:
provisioner:
  name: ansible
  ...
  inventory:
    host_vars:
      docker-debian-stretch:
        gitlab_domain: "localhost"

jonashackt

# SHORT VERSION, if artifactId and groupId are hard-coded
FROM maven:3-jdk-11

# Add sources including pom.xml to Docker build context and use as workdir for later Maven execution
ADD . /build
WORKDIR /build

# Download Maven artifact from Nexus with current version
# And do it all inside ONE 'RUN' statement, see https://stackoverflow.com/a/37860420/4964553
# Otherwise you can't define vars like ARTIFACT_VERSION for later steps in following 'RUN' commands!

jonashackt

k9s cheatsheet: https://www.hackingnote.com/en/cheatsheets/k9s/

CLI enhancements

https://discuss.kubernetes.io/t/kubectl-tips-and-tricks/192

krew as the Kubernetes CLI (kubectl) plugin manager helps to install all the tools: https://krew.sigs.k8s.io/

kubectl autocompletion

jonashackt

# Add the following key to the 'Deploy Keys' section in Settings/Repository of your GitLab repository
# Dockerfile:
FROM centos:7

ARG SSH_KEY_GITLAB_DEPLOY_KEY

RUN \
    ### ssh configuration, see https://docs.gitlab.com/ee/ci/ssh_keys/#ssh-keys-when-using-the-docker-executor
    # run ssh-agent inside build environment
    eval $(ssh-agent -s); \

jonashackt

# The central problem right now, is that gitlab-runner exec was deprecated with GitLab 10 - and then undeprecated later,
# because of missing alternatives - see https://gitlab.com/gitlab-org/gitlab-runner/issues/2797
# So this guide is somehow only a work documentation on how I tried to use this feature

### OPTION 1: Install gitlab-runner directly on your system

# See 
# http://bryce.fisher-fleig.org/blog/faster-ci-debugging-with-gitlabci/index.html

# Install GitLab Runner locally

jonashackt

# on terminal
VBoxManage list ostypes

jonashackt

Reveal.js presentation with Markdown

Workflow

1. Create GitHub repo & write Markdown into README.md (all the time, as you do research)

2. Create gh-pages Branch & Markdown for presentation

3. Use Pandoc to convert Markdown into Reveal.js HTML (locally)

jonashackt

# Use another Java version as currently active
sdk list java
================================================================================
Available Java Versions
================================================================================
 Vendor        | Use | Version      | Dist    | Status     | Identifier
--------------------------------------------------------------------------------
 AdoptOpenJDK  |     | 15.0.1.j9    | adpt    |            | 15.0.1.j9-adpt
               |     | 15.0.1.hs    | adpt    | installed  | 15.0.1.hs-adpt
               |     | 14.0.2.j9    | adpt    |            | 14.0.2.j9-adpt

jonashackt

---
- hosts: "{{host}}"

  tasks:
  - name: Create directory C:\yourPath
    win_file: path="C:\\yourPath" state=directory

  - name: Install nssm (non-sucking service manager) with chocolatey
    win_chocolatey: name=nssm

jonashackt

mvn build-helper:parse-version versions:set -DnewVersion=\${parsedVersion.majorVersion}.\${parsedVersion.minorVersion}.\${parsedVersion.nextIncrementalVersion} versions:commit