What is bo

bo is a python script to automate the creation of a basic infrastructure on OpenStack.

This includes:

• network
• private subnet
• router and router interface
• security group
• X instances
• floating IP

Usage

usage: bo.py [-h] [--username USERNAME] [--projectname PROJECTNAME]
             [--clustername CLUSTERNAME] [--subnetcidr SUBNETCIDR]
             [--workers WORKERS] [--workerimageflavor WORKERIMAGEFLAVOR]
             [--glanceimagename GLANCEIMAGENAME]
             [--availabilityzone AVAILABILITYZONE]
             [--externalnetid EXTERNALNETID]
             keypair floatingip

positional arguments:
  keypair               Keypair ID
  floatingip            Floatingip for public access to cluster

optional arguments:
  -h, --help            show this help message and exit
  --username USERNAME   Openstack username - (OS_USERNAME environment
                        variable)
  --projectname PROJECTNAME
                        Openstack project Name - (OS_TENANT_NAME environment
                        variable)
  --clustername CLUSTERNAME
                        Clustername - (cluster)
  --subnetcidr SUBNETCIDR
                        Private subnet CIDR - (192.168.3.0/24)
  --workers WORKERS     Number of workers - (3)
  --workerimageflavor WORKERIMAGEFLAVOR
                        Worker image flavor ID - (2008)
  --glanceimagename GLANCEIMAGENAME
                        Glance image name ID - (CentOS 7 (LTS))
  --availabilityzone AVAILABILITYZONE
                        Availability zone - (AMS-EQ1)
  --externalnetid EXTERNALNETID
                        External network id - (f9c73cd5-9e7b-4bfd-89eb-
                        c2f4f584c326)

Example infrastructure bootstrap

./bo.py PB_ITE_1 xxx.xxx.xxx.xxx --workers 10
terraform init
terraform apply

Extending the cluster

If you would like to extend the initial cluster you can easily add nodes by using the addnode.py script. Currently you will need to provide a free available IP in the subnet range you provided earlier; or in the 192.168.3.0/24 range by default.

./addnode 192.168.3.13
terraform apply

SecurityGroup defaults

The script will create a new security group which is applied to all the nodes with the following rules.

• allow any to any on all protocols within the LAN
• allow TCP 22 from outside
• allow TCP 80 from outside
• allow TCP 443 from outside
• allow TCP 8081 from outside

The outside rules will only make sense if there is a floating IP attached to the node.