This article shows how to connect to your VM via SSH in Linux

1. Prequisities: 

1.1. The private and public keys were created (eg. How to create Key-Pair in OpensStack Dashboard?). The key files were saved on the local disk of the computer. It is recommended to put the keys in the ~/.ssh folder.

1.2. During the virtual machine creation procedure, the generated key we want to use was indicated. Link to the procedure of creating a virtual machine: How to create new Linux VM in OpensStack Dashboard (Horizon)?

For example, when you create an SSH key named "testkey" in the Horizon dashboard, its name will appear next to your VM.

 

2. Connecting to a virtual machine via SSH:

2.1. If your virtual machine has already been assigned a Floating IP (the instances menu next to your virtual machine lists the IP address) you can proceed to the next step. If not, please follow one of the two instructions on how to generate a Floating IP.

2.1.1. Generating Floating IP from External2 Pool: External2

2.1.2. Generating Floating IP from External3 Pool: External3

2.2. Go to the ~/.ssh folder where your SSH keys were placed. Start terminal (right click and click "open in terminal").

2.3. Change the permissions of the private key file. In the case of file named id_rsa, type: 

Enter your password and confirm.
 

2.4. Once you have completed all of the above steps, you can log in. Let us assume that your generated and configured floating IP address is in this case 185.52.193.152. Type in the terminal console and confirm: 

2.5. The username in the terminal will change to eouser. This means that the SSH connection was successful.