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WACloud

Centralised interface for Webarchive data extraction and analysis

Funding - dedication

The work of this project - Centralised interface for Webarchive big data extraction and analysis (project identification code: DG18P02OVV016), was supported via programme of the Ministry of culture of the Czech Republic - Applied research and developement of national and culture identity programme (NAKI).

Structure of the repository

The repository contains four subfolders, each with one component:

Subdir name Description
api Backend application based on springboot framework
client Frontend application based on react
solr Docker image with Solr engine and two cores definitions
database Example of ER diagram and schema definition

Development/initialization of a new environment

Initialization

Before the first run of the application do the following:

  • copy the content of the file .env.example to a new file .env
  • change environment values in the file .env with proper values for your environment

Environment variables in the file .env

Environment value's name Description
POSTGRES_PASSWORD Password used for database account
SPRING_DATASOURCE_PASSWORD Have to contain the same value as POSTGRES_PASSWORD
HBASE_ZOOKEEPER_QUORUM IP/domain of the zookeeper with hbase node
ZOOKEEPER_ZNODE_PARENT Zookeeper prefix for hbase nodes

Run containers

Containers can be run through docker-compose with following command. There is a docker image built from solr/Dockerfile, therefore if it is change, we also have to add a --build option.

  • docker-compose up -d

Client application

If all containers start successfully, an HTTP server runs on the TCP port 5000.

Existed environment

Test cluster segment

The application is running on the application node. To deploy a new version from git repository it is possible to use GitLab CI on the branch test (merge changes from master to test branch and manually run pipeline's job deploy-test)

Changes in Solr schemas

If schemas configs are changes, solr container has to be stopped and removed together with volumes connected to it (app_solr_cores_data, app_solr_data). Then start Solr with command docker-compose up -d --build solr.