zaenk

Determine whether cgroups limit the available memory

• Create Dockerfile for test

FROM ubuntu:16.04

RUN apt-get update && \
    apt-get install -y openjdk-8-jdk && \
    rm -rf /var/lib/apt/list/*

zaenk

Fresh Windows Checklist

Links

• https://blogs.msdn.microsoft.com/commandline/2017/04/11/windows-10-creators-update-whats-new-in-bashwsl-windows-console/

zaenk

Set up dev environment with docker-compose

Python container

It is mostly (like a 100%) stolen from here

FROM ubuntu:16.04

RUN apt-get update -y

zaenk

Docker volumes on Windows

Docker for Windows needs a shared drive in order to use it as a root for shared volumes for containers. I don't feel like sharing my whole C: drive, or a creating a new partition on one of my existing disk solely for this purpose.

subst

First I tried to fix this with subst DOS command, it saved me once while I wanted to delete a really deep node_modules directory, but I wanted a solution where I can move around this mounted drive on the host.

Mount a VHD

zaenk

Set-ExecutionPolicy -Scope Process -ExecutionPolicy Unrestricted

zaenk

FROM ubuntu:14.04

RUN apt-get update && apt-get install -y openssh-server
RUN mkdir /var/run/sshd
RUN echo 'root:password' | chpasswd
# xenial
RUN sed -i 's/PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
# trusty
RUN sed -i 's/PermitRootLogin without-password/PermitRootLogin yes/' /etc/ssh/sshd_config

zaenk

# inventory

[app]
apphost1

[app:vars]
app_schema=testappdb
app_user=testappuser
app_password=testapppassword

zaenk

iOS universal link checklist

Proper way to configure Apple App Site Association file

• Follow the steps in the official Apple docs https://developer.apple.com/library/content/documentation/General/Conceptual/AppSearch/UniversalLinks.html

{
    "applinks": {
 "apps": [],

zaenk

import ch.vorburger.mariadb4j.springframework.MariaDB4jSpringService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.DependsOn;
import org.springframework.context.annotation.Lazy;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;

zaenk

Many Spring Boot Starters are dependent on spring-boot-starter-tomcat, which causes deployments error on Wildfly. To which dependencies causing errors run the following command and exclude spring-boot-starter-tomcat module from them:

./gradlew dependencyInsight --dependency spring-boot-starter-tomcat --configuration compile