Shulou(Shulou.com)06/03 Report--

Part II: Installation of the Base Environment

CentOS 7 system with control node installed

Turn on cpu virtualization for virtual machines before starting installation

Then download the minimal installation iso from:

https://mirrors.aliyun.com/centos/7.7.1908/isos/x86_64/CentOS-7-x86_64-Minimal-1908.iso

After downloading, load it into ct drive

Then start the virtual machine and the installer will load

Note: do not press enter immediately when installing the startup interface. You need to press tab key or e key.

Add startup parameters net.ifnames=0 biosdevname=0

Press Enter to continue installation

This allows the NIC to be named eth0, eth2, etc. instead of ens292, etc.

Continue to install centos7 system, the specific process will not be described, pay attention to the disk partition, network card configuration, etc. during installation

Disk partitions (using standard partitions)

Configuration of Ethernet card eth0(management network)

Configuration of network card eth2(external network)

Host name set to ct

hostname setting

After installation, connect the control node (ct) with xshell, turn off firewall and selinux, install vim and net-tools, etc.

Finally, check the network settings of the control node

IP settings for control nodes

CentOS 7 system for installing compute nodes

Similarly, turn on compute node cpu virtualization before installing the system

Then, install another CentOS 7 system as a virtual machine of the compute node in the above way, also turn off the firewall and selinux, and finally check its network configuration.

The host name is c1, the ip address of eth0 is 192.168.10.42, and the ip address of eth2 is 10.8.20.42.

Network settings for compute node (c1)

Testing connectivity between internal and external networks

Add host resolution to hosts files of control nodes and compute nodes

vim /etc/hosts

Add:

192.168.10.41 ct

192.168.10.42 c1

After adding it, ping it with the host name to test whether the resolution is successful

ping ct

ping c1

PS: Make sure that both hosts can ping with the hostname before you can proceed to the following operation.

Installation time synchronization

control node

yum install chrony -y

vim /etc/chrony.conf

Modify the following 2 lines

server ntp.aliyun.com iburst

allow 192.168.10.0/24

systemctl restart chronyd

systemctl enable chronyd

computing node

yum install chrony -y

vim /etc/chrony.conf

Server is modified to IP or hostname of the control node:

server 192.168.10.41 iburst

systemctl restart chronyd

systemctl enable chronyd

chronyc sources

clock -w

Install openstack source, control node and compute node are executed

yum install centos-release-openstack-train -y

yum upgrade -y

yum install python-openstackclient -y

yum install openstack-selinux -y

After installation, close the xshell connection to the compute node.

The following installations are performed on control nodes only

install the database

yum install mariadb mariadb-server python2-PyMySQL -y

vim /etc/my.cnf.d/openstack.cnf

Add:

[mysqld]

bind-address = 192.168.10.41

default-storage-engine = innodb

innodb_file_per_table = on

max_connections = 4096

collation-server = utf8_general_ci

character-set-server = utf8

systemctl enable mariadb.service

systemctl start mariadb.service

mysql_secure_installation (this step must be done, otherwise the database will not be filled when installing the service later)

Install Message Queue Services

yum install rabbitmq-server -y

systemctl enable rabbitmq-server.service

systemctl start rabbitmq-server.service

rabbitmqctl add_user openstack RABBIT_PASS

rabbitmqctl set_permissions openstack ".* " ".* " ".* "

After installation, use netstat -tnlup to check, if there are ports 25672 and 5672 shown in the figure below, the installation is successful.

Install memcache

yum install memcached python-memcached -y

vim /etc/sysconfig/memcached

Add ct in the line below

OPTIONS="-l 127.0.0.1,::1,ct"

systemctl enable memcached.service

systemctl start memcached.service

After installation and startup, also use netstat -tnlup to check the port situation. If you see that there is a program listening on port 11211, it means memcache installation is successful.

Note that one of the IP addresses must be 192.168.10.41

Install etcd

yum install etcd -y

vim /etc/etcd/etcd.conf

Change 9 lines:

ETCD_DATA_DIR="/var/lib/etcd/default.etcd"

ETCD_LISTEN_PEER_URLS="http://192.168.10.41:2380"

ETCD_LISTEN_CLIENT_URLS="http://192.168.10.41:2379"

ETCD_NAME="ct"

ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.10.41:2380"

ETCD_ADVERTISE_CLIENT_URLS="http://192.168.10.41:2379"

ETCD_INITIAL_CLUSTER="ct=http://192.168.10.41:2380"

ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster-01"

ETCD_INITIAL_CLUSTER_STATE="new"

systemctl enable etcd

systemctl start etcd

After installation and startup, also use netstat -tnlup to check the port situation. If you see programs listening on ports 2379 and 2380, it means that etcd installation is successful.

At this point, the basic service has been installed, and the next section begins to install Openstack's identity authentication service keystone.

OpenStack Train version dual-node installation notes (II)

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