How to install OpenStack with packstak installer

  There are several ways to install OpenStack:  RDO Packstack, TripleO, devstack, etc. They are mainly classified into community versions, and are also used having Proof of Concepts as well as to demonstrate OpenStack features. As a commercial product, Red Hat OpenStack uses TripleO, and the operation method is the same as that of Community's TripleO. So, if you understand the TripleO method, in a way that you will also understand Red Hat OpenStack. In this blog, I hopefully guide you on how to install OpenStack through the Packstack installer.

What is RDO and Packstack:

RDO stands for "RPM Distribution of OpenStack", which is simply a distribution of OpenStack for RHEL(Red Hat Enterprise Linux), CentOS, etc. Packstack is a Puppet-based tool that simplifies the deployment of RDO. So with the RDO Packstack tool, we can install OpenStack intended for demonstration and proof of concept deployments in a way of the Red Hat community. 

Installation of OpenStack with Packstack

This includes installing the CentOS with VirtualBox, preparing and planning your environment, and installation of OpenStack step by step.

Step 0. Prerequisites. 

CentOS8 has become EOL(End of Life), so we will use CentOS7, which is the currently available OS version.

0-1. Download VirtualBox and install it.

0-2. Download CentOS7.
Link: http://ftp.nara.wide.ad.jp/pub/Linux/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-2009.iso

0-3. Choose one of the virtualization tools to install OpenStack.
  a. Packstack (O) <-- We chose this installer.
  b. TripleO
  c. devstack

0-4. Design your OpenStack VM spec:
  a.  CPU : 2 Core
  b. Memory : 8196 MB(8 GB)
  c. Disk : 30 GB
  d. Network : 2 NICs, NAT(nic0) for internet and Host only adpater(nic1) for SSH, Dashboard

0-5. Install CentOS with VirtualBox.
Check if the network IP is up and available to access. if interfaces are down, you shoud up them to access to it with SSH. 

# ifup enp0s3; ifup enp0s8 # ip a [root@localhost ~]# ip a ..... 2: enp0s3: inet 10.0.2.15/24 3: enp0s8: inet 192.168.56.113/24 .....

0-6. Uncomment "PermitRootLogin yes" to log in to openstack server with root user, and then restart sshd daemon.

# vi /etc/ssh/sshd_config PermitRootLogin yes # systemctl restart sshd

 

Step 1. Preparing OpenStack environment.

1-1. Set locale if you are not using English locale, add it to the end of line in /etc/environment file.

# vi /etc/environment export LANG=en_US.utf-8 export LC_ALL=en_US.utf-8

1-2. Disable and stop firewalld and NetworkManager, set ONBOOT=yes in /etc/sysconfig/network-scripts/ifcfg-enp0s3, /etc/sysconfig/network-scripts/ifcfg-enp0s8 

# systemctl disable NetworkManager # systemctl stop NetworkManager # systemctl disable firewalld # systemctl stop firewalld # systemctl enable network # vi /etc/sysconfig/network-scripts/ifcfg-enp0s3 ONBOOT=yes # vi /etc/sysconfig/network-scripts/ifcfg-enp0s8 ONBOOT=yes

1-3. Set the hostname with FQDN

#  hostnamectl set-hostname osp-train.exam.com #  hostnamectl set-hostname osp-train.exam.com --transient

1-4. Check the Add IP address, hostname and FQDN and add them to the end of the line in /etc/hosts file.

# ip -4 -o a enp0s3    inet 10.0.2.15/24  enp0s8    inet 192.168.56.113/24  # hostname -f osp-train.exam.com # vi /etc/hosts .... 192.168.56.113  osp-train.exam.com osp-train

1-5 Disable selinux, and reboot OpenStack server.

# setenforce 0 # vi /etc/selinux/config   ....   SELINUX=disabled   .... # reboot

 

Step 2. Software repositories  

2-1. Install software repositories

# yum update -y # yum install -y centos-release-openstack-train

2-2. Install Packstack installer

# yum update -y # yum install -y openstack-packstack

 

Step 3. Run Packstack to install OpenStack

3-1. Generate the answer file and replace all IPs with the IP available for access to the dashboard.

# packstack --gen-answer-file=ans.txt # vi ans.txt :%s/10.0.2.15/192.168.56.113/g

3-2. Check the IP adrresses and all components to be installed.

# grep -i 192.168.56.113 ans.txt CONFIG_CONTROLLER_HOST=192.168.56.113 CONFIG_COMPUTE_HOSTS=192.168.56.113 CONFIG_NETWORK_HOSTS=192.168.56.113 CONFIG_AMQP_HOST=192.168.56.113 CONFIG_MARIADB_HOST=192.168.56.113 CONFIG_REDIS_HOST=192.168.56.113 # grep -i =y ans.txt CONFIG_MARIADB_INSTALL=y CONFIG_GLANCE_INSTALL=y CONFIG_CINDER_INSTALL=y CONFIG_NOVA_INSTALL=y CONFIG_NEUTRON_INSTALL=y CONFIG_HORIZON_INSTALL=y CONFIG_SWIFT_INSTALL=y CONFIG_CEILOMETER_INSTALL=y CONFIG_AODH_INSTALL=y CONFIG_CLIENT_INSTALL=y CONFIG_RH_OPTIONAL=y CONFIG_SSL_CACERT_SELFSIGN=y CONFIG_CINDER_VOLUMES_CREATE=y CONFIG_NOVA_MANAGE_FLAVORS=y CONFIG_NEUTRON_METERING_AGENT_INSTALL=y CONFIG_HEAT_CFN_INSTALL=y CONFIG_PROVISION_DEMO=y CONFIG_PROVISION_OVS_BRIDGE=y

3-3. Install the OpenStack.

# packstack --answer-file=ans.txt

3-4. You can trace the log about what packstack is doing on this openstack server by running the command below in another termnial.

# journalctl -f

3-5. After finall installation, you can see the below results

......  **** Installation completed successfully ****** Additional information:  * Parameter CONFIG_NEUTRON_L2_AGENT: You have chosen OVN Neutron backend. Note that this backend does not support the VPNaaS or FWaaS services. Geneve will be used as the encapsulation method for tenant networks  * Time synchronization installation was skipped. Please note that unsynchronized time on server instances might be problem for some OpenStack components.  * File /root/keystonerc_admin has been created on OpenStack client host 192.168.56.113. To use the command line tools you need to source the file.  * To access the OpenStack Dashboard browse to http://192.168.56.113/dashboard . Please, find your login credentials stored in the keystonerc_admin in your home directory.  * Because of the kernel update the host 192.168.56.113 requires reboot.  * The installation log file is available at: /var/tmp/packstack/20220205-141955-AwGLLM/openstack-setup.log  * The generated manifests are available at: /var/tmp/packstack/20220205-141955-AwGLLM/manifests

3-6. Let's check the OpenStack service status

# yum install openstack-utils  # openstack-status

Step 4. Log in to OpenStack Dashboard and take a look at it.

4-1. You can find out the information to connect to the dashboard from /root/keystonerc_admin file.

# cat /root/keystonerc_admin unset OS_SERVICE_TOKEN     export OS_USERNAME=admin     export OS_PASSWORD='c4c37bccb4e34726'     export OS_REGION_NAME=RegionOne     export OS_AUTH_URL=http://192.168.56.113:5000/v3     export PS1='[\u@\h \W(keystone_admin)]\$ ' export OS_PROJECT_NAME=admin export OS_USER_DOMAIN_NAME=Default export OS_PROJECT_DOMAIN_NAME=Default export OS_IDENTITY_API_VERSION=3

4-2. Now, you can log in to the dashboard, enjoy your journey of OpenStack.

 

OVN Network Connection Test:

Let's test the Tenant network connection between the same tenant on the same compute. 

Tenant network(Geneve) : 22.22.22.0/24
test1 VM : 22.22.22.44/24
test2 VM : 22.22.22.129/24

Ping from 22.22.22.44 to 22.22.22.129

Hypervisor environment is like below:

# ovs-vsctl show bf50b171-8a8e-4c25-8646-cb0e75fa7489     Manager "ptcp:6640:127.0.0.1"         is_connected: true     Bridge br-int         fail_mode: secure         datapath_type: system         Port "tap0d8f55c3-40"             Interface "tap0d8f55c3-40"         Port "tap25fe9135-a4"             Interface "tap25fe9135-a4"         Port "tap90617d84-54"             Interface "tap90617d84-54"         Port br-int             Interface br-int                 type: internal     Bridge br-ex         Port br-ex             Interface br-ex                 type: internal     ovs_version: "2.12.0" # ip netns ovnmeta-0d8f55c3-4dc1-40a3-ac98-0e7b600664df (id: 0) # ip netns exec ovnmeta-0d8f55c3-4dc1-40a3-ac98-0e7b600664df ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00     inet 127.0.0.1/8 scope host lo        valid_lft forever preferred_lft forever     inet6 ::1/128 scope host         valid_lft forever preferred_lft forever 2: tap0d8f55c3-41@if9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000     link/ether fa:16:3e:0f:99:8c brd ff:ff:ff:ff:ff:ff link-netnsid 0     inet 22.22.22.2/24 brd 22.22.22.255 scope global tap0d8f55c3-41        valid_lft forever preferred_lft forever     inet 169.254.169.254/16 brd 169.254.255.255 scope global tap0d8f55c3-41        valid_lft forever preferred_lft forever # virsh list ----------------------------------------------------  1     instance-00000001              running  2     instance-00000002              runnnig

The test result is like below:

 

Conclusion:

Above, we configured and installed OpenStack through the Packstack installer and have taken a look at the openstack features. Packstack is mainly used for PoC purposes because there are many parts that are insufficient to use in a commercial environment. With the commercial products, like Red Hat OpenStack, which is highly recommended. You can experiance a lot of help from Red Hat Consulting, and you can also trust your service environment when you are with Red Hat together. 

 

Reference:

[1] https://www.rdoproject.org/install/packstack/