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  • MySQL installation,
  • Spring Boot installation (execution of Spring Boot based application),
  • Exposing RESTful Web Services.

Schema of components used by RESTful WS server

Starting

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WS API server from source codes

Catalogue QT Web Services are hosted using Spring-Boot framework. In order to start server you have to clone the repository with source code. Source code of all the components can be downloaded from the code repository (Catalog QT2).

Code Block
> git clone https://YOUR_USER_NAME_AT_GATEWAY@gforge-nextgitlab.eufus.psnc.eupl/gitsimulation_catalogue/catalog_qt_2.git


Info

If you don't have access yet, make sure to request for the access.

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Info

In case you have issues while accessing your MySQL installation, please consult your sys admin to resolve the issue.

Starting WS API server

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 Starting Spring Web Services

To prepare Catalog QT environment run compile.sh script - it will create server application and basic components. 

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Info

Note that you can use different port number for `Spring Boot` application

Code Block
> SERVER_PORT=8081 mvn spring-boot:run

 Startnig WS from docker containers

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 Catalogue QT Docker - Docker Compose Installation


This container is desined to simplify installation of Catalogue QT and it's components.
Instead of installing it on `IMAS` compatible platform you can use it on virtually any machine.


Known limitations

Note that this container should be used only for research purposes.


Info

Our codes and detailed documentation are open-source and you can find them in here:

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https://

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Please follow the instruction with cloning just the catalogue_qt_docker.

Info
Make sure that you clones the repo and you have access to catalog_qt_2' codes in /build folder and you can succesfully login to rhus-71.man.poznan.pl, dont build anything yet!

Our app includes 4 components:

  • Catalog QT Web Services 
  • Update Process
  • Imas Inotify
  • MySQL

We have two docker containers that containes all of the above components.

  • docker compose - the app is built of independent dockers that are connected to each other. According to the idea of microservices.
  • single-container - mailny used by developers, all components are built on the basis of one Dockerfile, which creates one container.

Moreover we have few options with authetincation you can enable/disable before building your own app by uncommenting/commenting particular lines in one file which is:

 /docker-compose/build/catalog_qt_2/server/catalog-ws-server/src/main/resources/appliation.properties

Anatomy of application.properties file

Spring based Web Services are run inside Tomcat server. Configuration of services can be done using application.properties file.

Code Block
# location of database - typically, it will point at localhost, but
# it's also possible to change location of MySQL server.
# Docker based installation (docker-compose) will change it to db:3306
# In case of docker-compose based installation, MySQL is visible as another host
# Note that you don't have to change anything
spring.datasource.url=jdbc:mysql://localhost:3306/itm_catalog_qt?serverTimezone=UTC

# Default user name and password for database connection. Note that this connection
# will not work (by default) for external hosts. This is why we don't quite care about
# user/pass - however, you can alter these and make sure they don't contain default values
spring.datasource.username=itm_catalog_rw
spring.datasource.password=itm_catalog_rw
spring.jpa.properties.hibernate.jdbc.time_zone=UTC

# In case of errors we want to embed error message as well (so we better know what went wrong)
server.error.include-message=always

# We definitely don't want to log SQL queries. However, if you want to see them, feel free
# to enable this property
spring.jpa.show-sql=false

# We don't want to generate DB schema from bean classes
spring.jpa.hibernate.ddl-auto=none

# This is additional http handler, on another port
# We need this one, in case we plan to use https

# This is tricky :)
# If server.ssl fields are set, this field defines https port
# If server.ssl fields are not set, this field defines http port
server.port=8080

# However, we need http port anyway (for some components). This is why we expose services on
# http anyway. At the and we can end up with two different configurations
# http  (8080) and http (8081) - no certificates
# https (8443) and http (8081) - certificates 
server.http.port=8081
server.http.interface=0.0.0.0

# ------- Keycloak settings -------
keycloak.realm = fair4fusion-docker-demo
keycloak.auth-server-url=https://sso.apps.paas-dev.psnc.pl/
keycloak.resource= catalogqt-cli
keycloak.realm-key= MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAjOCDGJsBi7rxVjf0RQb8pm0LAGsEKFcH7g7mKSqpFvp1uOypUeiYe5dwlwkXAXaYeYs0J70LB8E6mtVUcykbmp+XrqD1nn3yfPxlVLSg7iCvJqMUq8udsUbsyT3M/32/kssXurgY7rX5JhdtkYeAgq+9ifIjLQZhALg+FvEsX9C+D30WQDAChEljlReb+Y4UTz2aIqz9C+90bqG1ZIX4o3Dli1PZDosTNM444CwDTbrFrenctOTDtGPodo9k2jze8McZFAIrdUYi9mKD8v0frs8NUUW/TQj9h62swXdvVAfzYTd+R7aMRG0eXMV3rJc38DfsCsF7bkqSg0b4l8GcaQIDAQAB
keycloak.bearer-only = true
keycloak.public-client=true
keycloak.principal-attribute=preferred_username

spring.mvc.dispatch-options-request=true

# ------- HTTPS settings --------

# If you plan to use HTTPS, make sure to uncomment this one
# You have to make sure to generate and configure SSL certificate for your domain
#server.ssl.key-store=file:///home/imas/cert/keystore.p12
#server.ssl.key-store-password=catalogqt
#server.ssl.keyStoreType=PKCS12
#server.ssl.keyAlias=tomcat

# ------- Bearer token authorization --------

# Should we check authorisation header or not. This feature toggle enables sort of "single user mode"
# It's useful in case you don't have Keycloak and don't care about user roles. Once set to "false"
# it will make Web Services behave as if there is only one user
swagger-ui.authorization.header=true

We have few alternative path to run our app:

docker compose:

Warning

in every docker-compose path the first line should be changed to

spring.datasource.url=jdbc:mysql://db:3306/itm_catalog_qt?serverTimezone=UTC

-localhost:3306

+db:3306

  1. docker-compose with keycloak authentication and HTTPS settings both enabled, swagger-ui.authorization.header=true
  2. docker-compose with keycloak authentication enabled and HTTPS settings disabled, swagger-ui.authorization.header=true
  3. docker-compose with keycloak authentication disabled and HTTPS settings enabled, swagger-ui.authorization.header=false
  4. docker-compose with keycloak authentication and generated HTTPS settings both disabled, swagger-ui.authorization.header=false

the same for single container:

  1. single-container with keycloak authentication and HTTPS settings both enabled, swagger-ui.authorization.header=true
  2. single-container with keycloak authentication enabled and HTTPS settings disabled, swagger-ui.authorization.header=true
  3. single-container with keycloak authentication disabled and HTTPS settings enabled, swagger-ui.authorization.header=false,
  4. single-container  with keycloak authentication and generated HTTPS settings both disabled, swagger-ui.authorization.header=false

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In our application we have several different debugging paths depending on the docker environment and what you want to debug.

You can debug our app locally on your local machine using  e g. Intellij IDE.

Let's get through each debbuging path. 

 Local docker-compose debugging

Warning

Things you must do BEFORE building the image:

Catalog WS in docker-compose debugging

To debug catalog-ws-server you need to have  docker-compose.override.yaml file that looks like this (just copy and paste it in your empty file) 

Code Block
languagejava
version: "3.6"

services:
  server:
    volumes:
      - ./imasdb:/home/imas/public/imasdb
      - ./cert:/home/imas/cert
      - ./build/catalog_qt_2:/catalog_qt_2  #1
    ports:
      - 5005:5005  #2
    environment:
      - DEBUG=1   #3

  updateprocess:
    volumes:
      - ./imasdb:/home/imas/public/imasdb

  inotify:
    volumes:
      - ./imasdb:/home/imas/public/imasdb
 
Info

#1  Maps your code on host machine to the code inside container, allowing you to use your favourite IDE debugger capabilities. Also, you can change your code and run docker-compose restart to rerun container. This allows container to integrate your newest code

#2  Exposes port for Java debugger, usually 5005.

#3  Enables debugging on catalog-ws-server.

You also need to run to clear patch file

Code Block
true '' > build/files/server/application.properties.patch

and in catalog_qt_2/server/catalog-ws-server/src/main/resources/application.properties change

Code Block
languagejava
themeEclipse
-spring.datasource.url=jdbc:mysql://localhost:3306/itm_catalog_qt?serverTimezone=UTC
+spring.datasource.url=jdbc:mysql://db:3306/itm_catalog_qt?serverTimezone=UTC

After that you can build the image with debugging WS turned on.

Local single-container debugging

If you are a Catalog WS developer the easiest and most comfortable way to debug code is use single container as a base image.

You can debug code in two ways:

  • in IDE - you can see only the stack trace of WebServices, which is relevant in most cases
  • inside container - it helps you find out what's happening inside docker while all of the components are working.

IDE debugging

To debug code in IDE  you should prepare your enviroment in such way:

your catalog_qt_2/server/catalog-ws-server/src/main/resources/application.properties  should look like this:

Code Block
languagejava
themeEclipse
firstline1
linenumberstrue
spring.datasource.url=jdbc:mysql://localhost:3306/itm_catalog_qt?serverTimezone=UTC

spring.datasource.username=itm_catalog_rw
spring.datasource.password=itm_catalog_rw
spring.jpa.properties.hibernate.jdbc.time_zone=UTC

server.error.include-message=always

spring.jpa.show-sql=false
spring.jpa.hibernate.ddl-auto=none

# This is additional http handler, on another port
# We need this one, in case we plan to use https
server.port=8081  # We have to change ports on our local instance, because 8080 is taken by container
server.http.port=8082
server.http.interface=0.0.0.0

keycloak.realm = ******** 
keycloak.auth-server-url= *******
keycloak.resource= *********
keycloak.realm-key= ********
keycloak.bearer-only = true
keycloak.public-client=true
keycloak.principal-attribute=preferred_username

spring.mvc.dispatch-options-request=true

# These need to be commented
# If you plan to use HTTPS, make sure to uncomment this one
#server.ssl.key-store=file:///home/imas/cert/keystore.p12
#server.ssl.key-store-password=catalogqt
#server.ssl.keyStoreType=PKCS12
#server.ssl.keyAlias=tomcat

swagger-ui.authorization.header=true 
Warning

Change both ports in lines 14 and 15 because ports 8080 and 8081 are already taken by running docker container.

Warning

Lines from 18 to 21 should be filled with proper data! 

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Code Block
docker run -i \
  -p 8080:8080 \ 
  -p 3306:3306 \
  -v `pwd`/imasdb:/home/imas/public/imasdb \
  --name catalogqt_debug_ide -t catalogqt

And in your IDE connect properly to DB and run application in debug mode.

Running tests

You can run unit tests by changing directory to: ws/catalog-ws and running.

Code Block
> mvn test
Info

Test code doesn't use MySQL server based database. It's safe to run tests even after database is already created. Tests will not touch your production database.gitlab.eufus.psnc.pl/simulation_catalogue/catalogue_qt_docker


Starting Catalogue Update Process

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Code Block
# You need IMAS environment with Open JDK 11

> module purge
> module load cineca
> module load imasenv
> module unload itm-java
> module load openjdk

# You have to clone source repository (you need to request access if you haven't done so)
# https://gforge6gitlab.eufus.psnc.eu/gf/projectpl/simulation_catalogue/catalog_qt_2/ .git- and "Request to join project"

> git clone https://gforge6gitlab.eufus.psnc.eupl/gitsimulation_catalogue/catalog_qt_2.git
Cloning into 'catalog_qt_2'... 
Username for 'https://gforge6gitlab.eufus.psnc.eupl': YOUR_GW_USER_NAMEg2afilip
Password for 'https://g2michal@gforge6g2afilip@gitlab.eufus.psnc.eupl': YOUR_GW_PASSWORD

> cd catalog_qt_2/client/catalog-ws-client/
> mvn org.apache.maven.plugins:maven-install-plugin:3.0.0-M1:install-file  \
    -Dfile=${IMAS_PREFIX}/jar/imas.jar \
    -DgroupId=imas -DartifactId=imas \
    -Dversion=1.0.0-SNAPSHOT -Dpackaging=jar \
    -DlocalRepositoryPath=`pwd`/local-maven-repo
> mvn install -DskipTests

# You are ready to run Update Process

> java -jar ./target/catalogAPI.jar -startUpdateProcess --url http://catalog:8080
[main] INFO pl.psnc.catalog.client.cli.commands.StartUpdateProcess - Getting list of requests for processing from Catalog.
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