Alex Joh's Blog

Introduction This will show how to run Angular 4 from SpringBoot tomcat server. Angular CLI uses Webpack technology and allows to bundle all Javascripts and CSS files into couple of files and this will make easy to run the application from Tomcat Server. Reference This blog YOUTUBE Video Build SpringBoot and Angular Application(1) - Setup Environment Build SpringBoot and Angular Application(1) - Setup Environment YOUTUBE Video SpringBoot Document for @RestController SpringBoot REST Example What is @RestContoller Annotation Below statement from the Spring Documentation. Creating REST Controllers with the @RestController annotation It’s a very common use case to have Controllers implement a REST API, thus serving only JSON, XML or custom MediaType content. For >>convenience, instead of annotating all your @RequestMapping methods with @ResponseBody, you can annotate your controller Class with >>@RestController. @RestController is a stereotype annotation th...

Reference DC/OS 1.10 Manual Youtube demonstration Install Check current version Go system->System Overview to see the version Preparation Current bootstrap folder [dcosadmin@dcotest01 ~]$ ls ceph dcos_generate_config.sh genconf dcos-genconf.0ce03387884523f026-58fd0833ce81b6244f.tar dcos-install.tar jq [dcosadmin@dcotest01 ~]$ Create new version folder and copy config.yaml and ip-detect [dcosadmin@dcotest01 ~]$ mkdir dcos1-10 [dcosadmin@dcotest01 ~]$ cd dcos1-10 [dcosadmin@dcotest01 dcos1-10]$ ls ../genconf/ cluster_packages.json config.yaml serve/ state/ config.upgrade.yaml ip-detect ssh_key [dcosadmin@dcotest01 dcos1-10]$ mkdir genconf [dcosadmin@dcotest01 dcos1-10]$ cd genconf [dcosadmin@dcotest01 genconf]$ cp ../../genconf/config.yaml . [dcosadmin@dcotest01 genconf]$ cp ../../genconf/ip-detect . [dcosadmin@dcotest01 genconf]$ ls config.yaml config.yaml [dcosadmin@d...

title: Build Spring Boot and Angular Example(1) - Set up environment tags: AngularJS 4 Angular Angular CLI Spring Boot Bootstrap Typescript date: Sep 9, 2017 Build SpringBoot and Angular Application(1) - Set up environment Introduction Lots of article explained how to build AngularJS or Spring Boot separately, but I couldn't find any good article how I can package these two components together and running from one package. The best way to do this is to separate back-end and front-end using REST api and packaging as one. Spring Boot has built-in components, so both front-end and back-end will be running from the Spring Boot Web components. Reference Youtube Link Angular CLI NodeJS Bootstrap 4 Development Environment For the Spring Boot app(Back End), STS IDE will be used. For the AngualarJS 2(Front End), following technologies will be used; Typescript Bootstrap 4 AngularJS 4 AngularJS CLI NodeJS Visual Studio Code There is another way to develop UI us...

Adding SOAP Header generated by JAXB(wsimport) Introduction Recently, I've been working with Exact Web Service and needed to add SOAP header entry from the source files generated by wsimport tool. To access Globe database, I needed to add database server name and database name from SOAP Header. I tried to find out lots of article and this is the way to add headers into SOAP. Reference There was one excellent site, but I couldn't find it any more. If I find it, I will update here. The steps Add jaxws-api (2.2.12) to POM file Add jaxws-maven-plugin to POM file to generate java code from WSDL Add SOAPHanlder class to intercept during sending messages To add SOAPHandler, get handler from JAXB service Call Service 1. Add jaxws-api <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <dependency> <groupId>com.fasterxm...

Installing Ceph docker plugin to DCOS using Rex-Ray Introduction From the previous blog, DC/OS 1.9 and Ceph have been installed. To install Jenkins using external volume, I decided to use Rex-Ray because most of other plugins have not been maintained properly to support latest version. Reference dcos-rexray Marathon rexray Configuring docker to use rexray and Ceph for persistent storage Rex-ray configuration generator rexray Docker volume plug-ins Install Rex-Ray [dcosadmin@dcotest02 ~]$ sudo su - Last login: Mon Jun 26 12:50:35 MDT 2017 from 172.16.110.20 on pts/0 [root@dcotest02 ~]# curl -sSL https://dl.bintray.com/emccode/rexray/install | sh INFO[0000] updated log level logLevel=info INFO[0000] exiting process time=1498592066094 rexray has been installed to /usr/bin/rexray INFO[0000] updated log level logLevel=info REX-Ray ------- Binary: /usr/bin/rexray Flavor: client+agent+controlle...

After installing DC/OS, I noticed that all data worked with container stored to local node. Due to the reason, when the container was moved from one node to antoher, all configuration has been lost. I tried to find out shared storage solution and this manual is regarding how to add CEPH open source platform to CentOS DC/OS platform Reference Ceph Script on DC/OS Ceph on DC/OS losetup manual Checking file system type in Linux Ceph example from DCOS 1.8 Ceph example from DCOS 1.9 bash_rc vs profile Install lightttpd rbd-docker-plugin Current configuration As I posted from previous DC/OS blog, my configuration is I used 4 nodes as DC/OS recommended ComputerName IP Addess Computer Spec Description Note dcostest01 172.16.110.20 2 core, 16GB, 100 GB Disk Bootstrap Computer Ceph Client & DC/OS CLI will be in here dcostest02 172.16.110.30 2 core, 16GB, 100 GB Disk Agent1-Master dcostest03 172.16.110.31 2 core, 16GB, 100 GB Disk Agent1-Private Ag...