Nexus 3 as a Docker GROUP around a proxy and 2 hosted repos
We want to provide this setup:dockergroup repository, "covering" a dockerproxy repo (proxy to docker hub) and 2 hosted reposEach repo will have its own http port!1) create these blob stores...
View ArticleWildfly file upload and download with Primefaces
Sample application available here https://github.com/vernetto/pffilehttps://www.primefaces.org/docs/api/6.2/org/primefaces/model/UploadedFile.htmlhttps://stackoverflow.com/a/8880083/651288 read BalusC...
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primefaces cookbook on wildfly
The book is covering in depth many examples available on the official PF showcase. Don't expect advanced programming techniques, it's purely about implement not-so-common use cases in PFsample code is...
View ArticleDocker resource control
systemd-cglssystemd-cgtopls -ltr /sys/fs/cgroup/https://goldmann.pl/blog/2014/09/11/resource-management-in-docker/mkdir stresscd stress/cat <<EOT >> DockerfileFROM fedora:latestRUN yum -y...
View ArticleSpring testing
spring-test https://docs.spring.io/spring/docs/current/spring-framework-reference/html/integration-testing.htmlspring-boot-test...
View ArticleSpring core tutorial
Although a bit outdated, it goes over the main points https://www.tutorialspoint.com/spring/I have put the code of each step in https://github.com/vernetto/springdemo , instructions in the readme.md, a...
View ArticleXml Parsing, tools, strategies and alternatives
JAXBIf you have an xsd, you can generate the @javax.xml.bind.annotation.XmlRootElement annotated Java POJOs with xjc: https://docs.oracle.com/javase/8/docs/technotes/tools/unix/xjc.htmlexample: cd...
View ArticleOpenshift Online getting started
Create yourself an Openshift Online account (account creation seems to me a bit buggish)https://docs.openshift.com/online/getting_started/basic_walkthrough.htmlI follow the instructions and create my...
View Articlemore Docker in Action
docker run -d --volume /var/lib/cassandra/data --name cass-shared alpine echo Data Containerdocker run -d --volumes-from cass-shared --name cass1 cassandra:2.2docker run -it --rm --link cass1:cass...
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Eclipse generate JPA entities from DB
Unfortunately there doesn't seem to exist a tool to generate JPA Entities directly from SQL. Weird!So you have to start by populating a real schema.Create a Java projectConfigure "Targeted Runtimes"...
View ArticleThe Kubernetes Book by Nigel Poulton
I have learned much more from "Kubernetes Webinar Series" freely available on youtube. Unless you are a really total beginner, you have already heard/read most of the stuff in this...
View ArticleKatacoda docker interactive tutorial
Katacoda is the best thing I have seen this year. IT teachers and IT books are made obsolete by this tool.https://www.katacoda.com/courses/docker/deploying-first-containerdocker search redisdocker run...
View ArticleWebLogic on Kubernetes
https://blogs.oracle.com/weblogicserver/weblogic-server-certification-on-kuberneteshttps://github.com/oracle/docker-images/tree/master/OracleWebLogic/dockerfiles/12.2.1.3sample Dockerfile...
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ANTLR
http://www.antlr.org/Source code: https://pragprog.com/titles/tpantlr2/source_code(I am using GIT bash)on Windows:export CLASSPATH=/d/pierre/downloads/antlr/antlr-4.0-complete.jar:.alias antlr="java...
View ArticleH2 autogenerating unique IDs from Sequence
if you have annotated the ID withimport javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.SequenceGenerator;import...
View ArticleHibernate validator dependencies for unit testing
http://hibernate.org/validator/ home page of validationat javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:271)at...
View Articledebug hanging shell scripts
https://stackoverflow.com/questions/4640794/a-running-bash-script-is-hung-somewhere-can-i-find-out-what-line-it-is-onset -xlsof -p $pidstrace -p $pid -s 1024/proc/$pid/environpstree -pl 21156 + cat...
View ArticleJenkins sucks
Jenkins sucks. Ok it could suck more, but let me tell you what I find really frustrating from a begginner's perspectivea) documentation is pathetic. The Jenkins User Handbook until a few months ago was...
View ArticleDocker run a command in an image
How many times you are baffled because you rundocker run myregistry/maven:3-alpine and it simply exists without doing anything.Then you do docker run myregistry/maven:3-alpine /bin/bashand the same...
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