# Pouta ### Creating and connecting VMs

# OpenStack@cPouta
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- Currently installed version is Ussuri
                        - Free and open-source cloud computing platform for building and managing public and private clouds
                          - Virtual Machines
                          - Networking
                          - Storage
                        - Usable through the Horizon Web UI, the CLI, and programmatically (REST)

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                            <img src="/img/sld-pouta-image43.png" alt="The OpenStack logo and component overview.">
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                        # cPouta default quota
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- A default cPouta project contains:
                          - 8 vCores
                          - 32 GB RAM
                          - 1 TB disk capacity
                          - 10 TB object storage (Allas)
                          - 2 public IPv4 addresses (floating)
                        - Academic and commercial projects may apply for more resources.

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- <https://docs.csc.fi/cloud/pouta/vm-flavors-and-billing/#cpouta-flavors>

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                        # Standard flavours
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                            <img src="/img/sld-pouta-image45.png" alt="Table of the standard cPouta flavours.">
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                        # Additional flavours
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                            <img src="/img/sld-pouta-image46.png" alt="Table of the additional cPouta flavours.">
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                        # Creating and connecting a virtual machine
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- Create a CSC account 
                        - Create a CSC project 
                        - Activate the cPouta service 
                        - Create an SSH keypair 
                        - Create a virtual machine 
                        - Make the VM available via SSH 
                          - Create a security group
                          - Attach a floating IP address
                        - Connect to the virtual machine

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                            <img src="/img/sld-pouta-image48.png" alt="Overview of the steps to create and connect to a virtual machine.">
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                        # Documentation links
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1. Create a CSC account: <https://cssedu.csc.fi/mycsc/csc-account/>
                        2. Create a CSC project: <https://cssedu.csc.fi/mycsc/project/>
                        3. Activate the cPouta service: <https://cssedu.csc.fi/mycsc/service/>
                        4. Create an SSH keypair: <https://cssedu.csc.fi/cpouta/create-ssh-key-pair/>
                        5. Create a virtual machine (web): <https://cssedu.csc.fi/cpouta/create-vm-web/>
                        6. Create a security group: <https://cssedu.csc.fi/cpouta/connect-vm-to-internet-web/#create-security-group>
                        7. Attach a floating IP address: <https://cssedu.csc.fi/cpouta/connect-vm-to-internet-web/#reserve-floating-ip>
                        8. Connect to the virtual machine: <https://cssedu.csc.fi/cpouta/connect-to-vm/>

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                        # Login (SSH) caveats
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- Security group / policy for SSH connections missing or not attached
                        - Wrong SSH keypair
                        - Wrong username
                        - Too many private SSH keys
                        - Change of the VM behind a floating public IPv4
                        - Change of the floating IPv4 bound to the VM
                        - VM's internal firewall activated (e.g. ufw on Ubuntu)
                        - Lost SSH private key

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                        # Exercise
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- Create and connect to a virtual machine
                          - see the checklist earlier in this section

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Thank you

Joona Tolonen

servicedesk@csc.fi