installation guide for ubuntu

Signed-off-by: dzdidi <dzdidi@protonmail.com>

java/INSTALL.md

@@ -0,0 +1,131 @@
+#  Installation guide without docker
+
+## Ubuntu
+
+### Install Java
+
+```sh
+sudo apt update
+sudo apt install openjdk-17-jdk
+java -version
+```
+
+### Install and configure PostgreSQL
+
+```sh
+sudo apt install postgresql
+
+sudo -u postgres psql
+ALTER USER postgres with encrypted password '<password>';
+quit
+sudo systemctl restart postgresql.service
+```
+
+#### Verify
+```sh
+psql postgresql://postgres:<password>@localhost:5432/postgres`
+quit
+```
+
+### Install Gradle
+
+```
+sudo apt intall unzip
+wget https://services.gradle.org/distributions/gradle-8.11.1-bin.zip  -P /tmp
+sudo mkdir /opt/gradle
+sudo unzip -d /opt/gradle /tmp/gradle-8.11.1-bin.zip
+export PATH=$PATH:/opt/gradle/gradle-8.11.1/bin
+```
+
+### Install Tomcat
+
+```
+sudo useradd -m -U -d /opt/tomcat -s /bin/false tomcat
+VERSION=10.1.4
+wget https://www-eu.apache.org/dist/tomcat/tomcat-10/v${VERSION}/bin/apache-tomcat-${VERSION}.tar.gz -P /tmp
+sudo tar -xf /tmp/apache-tomcat-${VERSION}.tar.gz -C /opt/tomcat/
+sudo ln -s /opt/tomcat/apache-tomcat-${VERSION} /opt/tomcat/latest
+sudo chown -R tomcat: /opt/tomcat
+sudo sh -c 'chmod +x /opt/tomcat/latest/bin/*.sh'
+```
+
+#### Systemd for tomcat
+location:
+```
+/etc/systemd/system/tomcat.service
+```
+content:
+
+```
+[Unit]
+Description=Tomcat 10 servlet container
+After=network.target
+
+[Service]
+Type=forking
+
+User=tomcat
+Group=tomcat
+
+Environment="JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64"
+Environment="JAVA_OPTS=-Djava.security.egd=file:///dev/urandom -Djava.awt.headless=true"
+
+Environment="CATALINA_BASE=/opt/tomcat/latest"
+Environment="CATALINA_HOME=/opt/tomcat/latest"
+Environment="CATALINA_PID=/opt/tomcat/latest/temp/tomcat.pid"
+Environment="CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC"
+
+ExecStart=/opt/tomcat/latest/bin/startup.sh
+ExecStop=/opt/tomcat/latest/bin/shutdown.sh
+
+[Install]
+WantedBy=multi-user.target
+```
+
+#### Enable and start tomcat
+
+```
+sudo systemctl daemon-reload
+sudo systemctl enable --now tomcat
+sudo systemctl status tomcat
+```
+
+### Clone repo
+```
+git clone https://github.com/lightningdevkit/vss-server.git
+cd vss-server/java
+```
+
+### Configure by editing password for postgres in this file for the same one used in step 2
+```
+./app/src/main/resources/application.properties
+```
+
+### Build
+Note: build command also does tests which are hardcoded to run against containerized posgress, so there will be some errors printed out, if errors are only about tests, then it is fine.
+```
+gradle wrapper --gradle-version 8.1.1
+./gradlew build
+```
+
+### Deploy
+```
+sudo cp app/build/libs/vss-1.0.war /opt/tomcat/latest/webapps/vss.war
+```
+
+### Verify deployment
+
+```
+curl --data-binary "$(echo "0A0773746F726549641A150A026B3110FFFFFFFFFFFFFFFFFF011A046B317631" | xxd -r -p)" http://localhost:8080/vss/putObjects
+
+curl --data-binary "$(echo "0A0773746F7265496412026B31" | xxd -r -p)" http://localhost:8080/vss/getObject
+```
+
+### Enable vss in nginx by adding:
+```
+location /vss/ {
+        proxy_pass http://localhost:8080/vss/;
+}
+```
+
+Restart nginx and try previous step from the external host machine

java/README.md

@@ -9,6 +9,11 @@ This directory hosts the Java-based implementation of the Versioned Storage Serv
 - Install Docker (https://docs.docker.com/desktop/).
 - Install PostgreSQL 15 (https://www.postgresql.org/download/).
 
+
+### Installation without docker
+
+see [here](./INSTALL.md)
+
 ### Building
 
 ```
@@ -46,7 +51,7 @@ gradle wrapper --gradle-version 8.1.1
 
 #### To run just the VSS-server:
 
-1. **Edit Configuration**: Modify the Dockerfile or application.properties to set application configurations and
+1. **Edit Configuration**: Modify the Dockerfile or `./app/src/main/resources/application.properties` to set application configurations and
    environment variables as needed. Add PostgreSQL endpoint configuration.
 2. Create table in PostgreSQL using `./app/src/main/java/org/vss/impl/postgres/sql/`
 3. **Build the Docker Image**: