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Installing the CMDBuild ITSM system in Centos 7

CMDBuild is open source software that manages database configuration. CMDBuild has been designed according to ITIL “best practice” for IT management services, responding to process oriented criteria.

Software used

  • CentOS 7.7 1908 Minimal
  • PostgreSQL 10.12
  • OpenJDK 13.0.2
  • Tomcat 9.0.31
  • CMDBuild 3.2

Training

Let’s update and install the EPEL repository and the necessary software

$ sudo yum update
$ sudo yum -y install epel-release
$ sudo yum -y install wget nano

Install PostgreSQL 10

Add the repository

$ sudo yum -y install https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm

Install PostgreSQL

$ sudo yum -y install postgresql10 postgresql10-server postgresql10-contrib postgresql10-libs

We initialize the database

$ sudo /usr/pgsql-10/bin/postgresql-10-setup initdb

Configuring access to the PostgreSQL database

$ sudo nano /var/lib/pgsql/10/data/pg_hba.conf
# TYPE  DATABASE        USER            ADDRESS                 METHOD

# "local" is for Unix domain socket connections only
local   all             all                                     trust
# IPv4 local connections:
host    all             all             127.0.0.1/32            md5
# IPv6 local connections:
host    all             all             ::1/128                 md5

Add PostgreSQL to startup and start the service

$ sudo systemctl enable --now postgresql-10

Create base / users

$ sudo su - postgres
-bash-4.2$ psql
postgres=# CREATE DATABASE cmdbuild_db;
postgres=# CREATE USER cmdbuild_user WITH encrypted password 'password';
postgres=# GRANT ALL PRIVILEGES ON DATABASE cmdbuild_db TO cmdbuild_user;
postgres=# DROP DATABASE cmdbuild_db;
postgres=# CREATE USER cmdbuild_superuser WITH encrypted password 'password';
postgres=# ALTER USER cmdbuild_superuser WITH SUPERUSER;
postgres=# q
-bash-4.2$ exit

The base was removed on purpose, since later it will be created by the installation script

Installing OpenJDK 13 and Tomcat 9

Install OpenJDK latest (13.0.2)

$ sudo yum -y install java-latest-openjdk java-latest-openjdk-devel
$ java --version

Create a Tomcat system user

$ sudo useradd -m -U -d /opt/tomcat -s /bin/false tomcat

Download the Tomcat 9.0.31 archive and unpack it

$ cd /tmp
$ wget http://apache-mirror.rbc.ru/pub/apache/tomcat/tomcat-9/v9.0.31/bin/apache-tomcat-9.0.31.tar.gz
$ tar -xf apache-tomcat-9.0.31.tar.gz
$ sudo mv apache-tomcat-9.0.31 /opt/tomcat/

Create a symlink, change the owner of directories and make bash scripts executable

$ sudo ln -s /opt/tomcat/apache-tomcat-9.0.31 /opt/tomcat/latest
$ sudo chown -R tomcat:tomcat /opt/tomcat
$ sudo sh -c 'chmod +x /opt/tomcat/latest/bin/*.sh'

Create a systemd Unit

$ sudo nano /etc/systemd/system/tomcat.service
[Unit]
Description=Tomcat 9 servlet container
After=network.target

[Service]
Type=forking

User=tomcat
Group=tomcat

Environment="JAVA_HOME=/usr/lib/jvm/jre"
Environment="JAVA_OPTS=-Djava.security.egd=file:///dev/urandom"

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

Add Tomcat to startup and start the service

$ sudo systemctl daemon-reload
$ sudo systemctl enable --now tomcat
$ sudo systemctl status tomcat

Configuring Firewall

Opening port 8080

$ sudo firewall-cmd --zone=public --permanent --add-port=8080/tcp
$ sudo firewall-cmd --reload

Configuring access to Tomcat Web Management Interface

Editing the file conf / tomcat-users.xml, set the login / password

$ sudo nano /opt/tomcat/latest/conf/tomcat-users.xml
...
   <role rolename="admin-gui"/>
   <role rolename="manager-gui"/>
   <user username="admin" password="admin_password" roles="admin-gui,manager-gui"/>
</tomcat-users>

Editing the file manager / META-INF / context.xml, add IP

$ sudo nano /opt/tomcat/latest/webapps/manager/META-INF/context.xml
...
<Context antiResourceLocking="false" privileged="true" >
  <Valve className="org.apache.catalina.valves.RemoteAddrValve"
         allow="127.d+.d+.d+|::1|0:0:0:0:0:0:0:1|10.0.2.2" />
</Context>

Editing the file host-manager / META-INF / context.xml, add IP

$ sudo nano /opt/tomcat/latest/webapps/host-manager/META-INF/context.xml
...
<Context antiResourceLocking="false" privileged="true" >
  <Valve className="org.apache.catalina.valves.RemoteAddrValve"
         allow="127.d+.d+.d+|::1|0:0:0:0:0:0:0:1|10.0.2.2" />
</Context>

where 10.0.2.2 is the allowed IP (virtualbox host)

Or in these 2 files context.xml (manager / host-manager) comment out the line

<!--
<Valve className="org.apache.catalina.valves.RemoteAddrValve" ... />
-->

You can also remove the default applications, but I left them

$ sudo rm -rf /opt/tomcat/latest/webapps/*

Installing CMDBuild 3.2

Download the cmdbuild.war file and copy it to the Tomcat directory

$ cd /tmp
$ wget -O cmdbuild-3.2.war https://sourceforge.net/projects/cmdbuild/files/3.2/cmdbuild-3.2.war/download?use_mirror=netcologne#
$ sudo cp /tmp/cmdbuild-3.2.war /opt/tomcat/latest/webapps/cmdbuild.war
$ sudo chown tomcat:tomcat /opt/tomcat/latest/webapps/cmdbuild.war

Configuring a connection to the PostgreSQL database

$ sudo mkdir -p /opt/tomcat/latest/conf/cmdbuild
$ sudo nano /opt/tomcat/latest/conf/cmdbuild/database.conf
db.url=jdbc:postgresql://localhost:5432/cmdbuild_db
db.username=cmdbuild_user
db.password=password
db.admin.username=cmdbuild_superuser
db.admin.password=password

Change owner

$ sudo chown -R tomcat:tomcat /opt/tomcat/latest/conf/cmdbuild

Downloading add. libraries, copy them to the Tomcat directory, change the owner

$ cd /tmp
$ wget -O cmdbuild-3.2-resources.tar.gz https://sourceforge.net/projects/cmdbuild/files/3.2/cmdbuild-3.2-resources.tar.gz/download#
$ tar -xzf /tmp/cmdbuild-3.2-resources.tar.gz
$ sudo cp /tmp/tomcat-libs/postgresql-*.jar /opt/tomcat/latest/lib/
$ sudo chown -R tomcat:tomcat /opt/tomcat/latest/lib

We create the base structure

$ sudo systemctl stop tomcat
$ sudo chmod +x /opt/tomcat/latest/webapps/cmdbuild/cmdbuild.sh
$ sudo bash /opt/tomcat/latest/webapps/cmdbuild/cmdbuild.sh dbconfig create empty -configfile /opt/tomcat/latest/conf/cmdbuild/database.conf
$ sudo systemctl restart tomcat

If you need to download demo data:

$ sudo bash /opt/tomcat/latest/webapps/cmdbuild/cmdbuild.sh dbconfig create demo -configfile /opt/tomcat/latest/conf/cmdbuild/database.conf

after removing the base

postgres=# DROP DATABASE cmdbuild_db;

We check:

http: // localhost: 8080 / cmdbuild /? language = ru_RU User: admin Password: admin

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