Setup on Linux (Offline)

This section covers installing Squirro on a Linux system without internet access. This complements the Setup on Linux section.

Table of Contents

Prerequisites

Please refer to the Architecture and Prerequisites sections of Setup on Linux. Both of these sections also apply to an offline installation.

For an offline installation, Squirro will provide you with a tar.gz file which contains all the required RPM files. Make that file available on the server, for example by copying it over using scp.

YUM Repositories

Extract Repository

The tar.gz file above contains a YUM repository that can be used offline. To use this on the server, extract it:

sudo su
mkdir -p /opt/squirro
cd /opt/squirro
tar -xvf /tmp/squirro-xxx.tar.gz

This creates the folder /opt/squirro/repo and populates it with al the RPM files.

Squirro

Create the file /etc/yum.repos.d/squirro.repo.

[squirro]
name=Squirro
baseurl=file:///opt/squirro/repo/
enabled=1
metadata_expire=300
gpgcheck=0

Storage Node Installation

Installation of the storage node happens with two separate packages. The first package installs the required Linux users and the second installs the services. Use the following two commands for the installation:

yum install elasticsearch # in case of installing Squirro v2.6.0
yum install squirro-storage-node-users
yum install squirro-storage-node

Cluster Node Installation

First install the following prerequisites:

yum install libgomp

echo "Installing Squirro dependency MariaDB"
yum install -y mariadb-server
yum install -y policycoreutils-devel
if [ -f /lib/systemd/system/mariadb.service ]; then
    systemctl stop mariadb
    mv /lib/systemd/system/{mariadb,mysqld}.service
    systemctl enable mysqld
    systemctl start mysqld
fi

Installation of the Squirro cluster node happens with two separate packages. The first package installs the required Linux users and the second installs the services. Use the following commands for the installation:

yum install python27-python || yum install python27
yum install squirro-cluster-node-users
yum install squirro-cluster-node

If the Storage and Cluster node are not the same physical machine, then you need now to adjust the file /etc/nginx/conf.d/upstream-elastic.inc to point to the IP or Hostnames of the storage node(s).

Examples:

upstream elastic {
    server 127.0.0.1:9200;
    keepalive 32;
}

upstream elastic {
 server 192.168.0.20:9200;
 keepalive 32;
}

upstream elastic {
 server 192.168.0.20:9200;
 server 192.168.0.21:9200;
 server 192.168.0.22:9200;
 keepalive 32;
}

If changes have been made to this file, reload the nginx configuration

service nginx reload

Finally start the Squirro Services:

service monit start
monit -g all-manual start

echo "Starting Squirro services"
cd /lib/systemd/system
for service in $(ls sq*d.service); do
    echo "Starting $service"
    systemctl restart $service
done