1. Warnings
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The current guide contains the necessary commands to make a mononode QVD installation, where all the components will installed into the same machine. In a multinode installation will exist additional steps and network configuration may be different. |
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During the process, some packages will be installed and the network configuration will be affected. It is recommended use a testing environment. |
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For practical purposes, the hostname will be identified with the name qvdhost, in your case you must replace it with the name corresponding to your server. |
2. Requirements
2.1. Operating System
To download CentOS 7.9 you can go directly to the website www.centos.org to its section downloads or choose it from the list mirrors. It is recommended to use the minimal version.
2.2. Hardware
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2 CPU cores
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2 GB of RAM
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Hard drive at least 20GB
2.3. Database
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PostgreSQL 10 or higher
2.4. HKD
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x86_64 architecture.
3. Pre-installation
rpm --import https://www.theqvd.com/packages/key/public.key yum install -y yum-utils yum-config-manager --add-repo http://theqvd.com/packages/centos/7.9/QVD-4.2.0/ yum update
For commercial packages:
rpm --import https://www.theqvd.com/packages/key/public.key
echo "[QVD-4.2.0]" > /etc/yum.repos.d/QVD-4.2.0.repo
echo "name=QVD-4.2.0" >> /etc/yum.repos.d/QVD-4.2.0.repo
echo "baseurl=http://$USUARIO:$PASSWORD@theqvd.com/commercial-packages/centos/7.9/QVD-4.2.0/" | \
sed 's/@\(.*@\)/%40\1/' >> /etc/yum.repos.d/QVD-4.2.0.repo
echo "enabled=1" >> /etc/yum.repos.d/QVD-4.2.0.repo
yum update
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$USER and $PASSWORD are the credentials received when the suscription is purchased. |
Install the necessary tools
yum install -y bridge-utils
4. Database installation and configuration
yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm yum install -y postgresql10-server postgresql10-contrib /usr/pgsql-10/bin/postgresql-10-setup initdb systemctl start postgresql-10.service
4.1. Create a user account
su - postgres postgres@qvdhost:~$ createuser -SDRP qvd Enter password for new role: passw0rd Enter it again: passw0rd
4.2. Create the QVD database
postgres@qvdhost:~$ createdb -O qvd qvddb postgres@qvdhost:~$ exit
4.3. Change the PostgreSQL configuration
Edit the file /var/lib/pgsql/10/data/pg_hba.conf and add the following line to the beginning:
host qvddb qvd 127.0.0.0/24 md5
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Make sure to replace the default network 127.0.0.0/24 with the network that your platform uses. |
Edit the file /var/lib/pgsql/10/data/postgresql.conf and set the following parameters:
listen_addresses = '*' default_transaction_isolation = 'serializable'
Restart PostgreSQL.
systemctl restart postgresql-10.service
5. Installation of the HKD
yum install -y perl-QVD-HKD
5.1. Basic configuration
Copy the example configuration file to the /etc/qvd/ directory, save it as node.conf, and modify the permissions on it:
cp -v /usr/lib/qvd/config/sample-node.conf /etc/qvd/node.conf chown root:root /etc/qvd/node.conf chmod 0640 /etc/qvd/node.conf
Edit the file /etc/qvd/node.conf and modify/add the following entries:
nodename=qvdhost database.host=localhost database.name=qvddb database.user=qvd database.password=passw0rd
Enable HKD service:
systemctl enabled --now qvd-hkd
5.2. QVD tables population
/usr/lib/qvd/bin/qvd-deploy-db.pl
6. Administration tools installation
6.1. SSL Configuration
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If you already have a certificate signed by a third party, you can skip the auto signed certificate creation and use your signed certificate instead. |
- Auto signed certificate creation
yum install -y openssl mkdir /etc/qvd/certs cd /etc/qvd/certs
Generate a private key.
openssl genrsa 2048 > key.pem
Create an auto signed certificate.
openssl req -new -x509 -nodes -sha256 -days 3650 -key key.pem > cert.pem
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OpenSSL will prompt you to enter the various fields that it requires for the certificate. In the field Common Name you must insert the fully qualified domain name of the host that will be running your QVD node. |
6.2. API
yum install -y perl-QVD-API
Create the file /etc/qvd/api.conf with the following content:
database.host=localhost database.name=qvddb database.user=qvd database.password=passw0rd api.user=root api.group=root path.api.ssl=/etc/qvd/certs
To execute either the CLI or the WAT we must enable the API.
systemctl enable --now qvd-api
Calling to the endpoint info from the browser or using the following command, we will check that the API is working.
# curl -k https://localhost:443/api/info
It should return a JSON with system information.
6.3. CLI
yum install -y perl-QVD-Admin4
Create the file /etc/qvd/qa.conf with the following content:
qa.url = https://localhost:443/ qa.tenant = * qa.login = superadmin qa.password = superadmin qa.format = TABLE qa.insecure = 1
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This is just a testing installation guide. Never for be using in production environment. The parameter qa.insecure must be replaced by the parameter qa.ca with your Authority certification path. |
With the following command we will check that QA4 is working.
# qa4 admin get
It should return the two administrators of the system: admin and superadmin.
.----+------------+----------+-------. | id | name | language | block | +----+------------+----------+-------+ | 1 | superadmin | auto | 10 | | 2 | admin | auto | 10 | '----+------------+----------+-------' Total: 2
6.4. WAT
yum install -y qvd-wat
Visit https://localhost:443
Credentials:
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username: superadmin@*
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password: superadmin
7. Basic and indispensable configuration
7.1. Network configuration
7.1.1. Set dnsmasq to be controlled by QVD
rpm -q dnsmasq
If it is not installed:
yum install -y dnsmasq [ `systemctl is-enabled dnsmasq.service` == "enabled" ] && systemctl disable dnsmasq.service || echo "success disabled"
7.1.2. Configure IP forwarding
Edit the file /etc/sysctl.conf and uncomment the line:
net.ipv4.ip_forward=1
Execute:
sysctl -p
7.1.3. Configure a network bridge
Check if the bridge module is loaded with the command:
modinfo bridge
If it is not loaded, execute:
modprobe --first-time bridge
Create the network bridge
nmcli connection add ifname qvdnet0 connection.type bridge ipv4.addresses 10.3.15.1/24 ipv4.method manual
Bring up the network interface:
nmcli conn qvdnet0 up
Restart the network:
systemctl restart network
7.1.4. Configure QVD for your network
# qa4 config set tenant_id=-1,key=vm.network.ip.start,value=10.3.15.50 # qa4 config set tenant_id=-1,key=vm.network.netmask,value=24 # qa4 config set tenant_id=-1,key=vm.network.gateway,value=10.3.15.1 # qa4 config set tenant_id=-1,key=vm.network.dns_server,value=10.3.15.254 # qa4 config set tenant_id=-1,key=vm.network.bridge,value=qvdnet0
7.2. Configure QVD to use the SSL certificates
qa4 config ssl key=/etc/qvd/certs/key.pem, cert=/etc/qvd/certs/cert.pem openssl version -d
The previous command may return the following response by default:
OPENSSLDIR: "/etc/pki/tls"
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If other directory is returned, use it instead /etc/pki/tls for the following steps. |
The trusted certificates are stored in /etc/pki/tls/certs.
trusted_ssl_path=/etc/pki/tls/certs cert_path=/etc/qvd/certs/cert.pem cert_name=`openssl x509 -noout -hash -in $cert_path`.0 cp $cert_path $trusted_ssl_path/QVD-L7R-cert.pem ln -s $trusted_ssl_path/QVD-L7R-cert.pem $trusted_ssl_path/$cert_name
7.3. Configure HKD Node
Add the node to the solution by running:
qa4 host new name=qvdhost,address=10.3.15.1
8. And now, what?
Should you have any issue, please check the full QVD installation guide.
If you have already done all the steps of this guide, congratulations, you already have a solution QVD installed. Now you should:
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Configure your fist OSF
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Install your first image
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Add your first user
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Add a VM for your user
We recommend to you to continue with the WAT guide to do these steps.
Once finished, you will only have to connect and try the solution.
Check the quick guide to install the QVD client in your system.
If you have any question or need additional support, visit our website at http://theqvd.com/ or contact with us at info@theqvd.com.