OpenStack SSH to instance

But i didn't get any user and password to ssh the instance. Also tried to create instance from shell by running this, nova boot --config-drive=true --flavor 3 --key-name testkey --image be1437b9-b7b4-4e56-a2c3-f92cdd0848ce --user-data cloud-config.txt test. Instance launched successfully in both case and when i try to with root it ask me. $ openstack server ssh Example command to SSH into an instance which has been created on the provider network: $ openstack server ssh -- centos --identity ~/.ssh/ssh_key --address-type fixed cf491bcc-6050-4024-a72e-70d4e8fe8db When you launch an instance in OpenStack, it will launch in Host Only Mode. So, you can ping or SSH to your instance if you are in the same Network or Router. I think that is the issue with your instance. Now coming to the solution When an instance is created in OpenStack, it is automatically assigned a fixed IP address in the network to which the instance is assigned. This IP address is permanently associated with the instance until the instance is terminated. However, in addition to the fixed IP address, a floating IP address can also be attached to an instance To use the instance as a database server open ports: 3306. Now it is time to create or import an SSH key pair in order to communicate with the server. Follow 'Network' >> 'Security Groups', then switch to the 'Key Pairs' tab at the top

how to ssh in Openstack instance - Stack Overflo

On the Project tab, open the Compute tab and click the Instances category. Select the instance from which to create a snapshot. In the actions column, click Create Snapshot. In the Create Snapshot dialog box, enter a name for the snapshot, and click Create Snapshot Question: I installed OpenStack Icehouse on my test bed and was able to create instances successfully. But I was not able to to CentOS instance via PuTTY using the key file (.pem). However, I was able via SSH command. Can someone tell me how to to instance.. Navigate to Project -> Compute -> Access & Security -> Security Groups -> default. Select the checkbox of default and click on Manage Rules . Click on Add Rule . From the drop down menu select Allow ICMP and Add . Next again create another rule and select SSH and Add . Connect to the Instance

ping or ssh my cirros instance from my computer OpenstackThe instance is assigned to a security group that has a security rule that opens port 22 for incomi.. Now that we created the key, started an instance and associated a floating IP, you can use the converted private key to connect over SSH: 1. Open Putty. 2. Go to the tree on the left to Connection. 3. Go to Connection > SSH > Auth 4. Click on the 'Browse' button under Private key file. 5. Select the PPK-file (the private key) 6 A public OpenStack ssh key can be injected into an instance on launch, so that it's ready for you to access using the private key. If you then set up ssh to deny password authentication and instead require the key, you give your instance a much stronger layer of security. Now let's look at how to set up an OpenStack keypair You can launch an instance directly from one of the available OpenStack images, or from an image that you have copied to a persistent volume. The OpenStack Image service provides a pool of images that are accessible to members of different projects. Gather parameters to launch an instance Openstack: How to use ssh keypairs in openstack instanceHow to create and connect openstack instance with ssh key-pairHow to create and connect openstack ins..

The networking used is Nova with an floating IP range of 172.24.4.. The problem occurs when I try to ssh to an instance from another computer. I have created a route in the router to direct all traffic from 172.24.4. to the IP of the machine where OpenStack is installed. I can telnet into the SSH port from this external machine When the instance state is active, attach a floating IP address: $ openstack floating ip create web-server-network $ openstack server add floating ip web-server-instance; Log in to the instance with SSH: $ ssh -i ~/.ssh/web-server-keypair cloud-user@; Check that the customization was successfully performed To run this first play, manually launch a CentOS image in your OpenStack tenant and assign a floating IP to it. Ensure that you can log into the instance without a password using your SSH key as the centos user. Then create a simple hosts file similar to the one below, replacing 192.168..10 with your floating IP: [webservers] 192.168..1 I have OpenStack Havana installed I am able to launch Ubuntu/CirrOS instance but I am not able to ping or ssh to instance and vice-versa. I had set this in local.conf HOST_IP= FLAT_INTERFACE=eth0 FIXED_RANGE=10.11.12./20 FIXED_NETWORK_SIZE=4096 FLOATING_RANGE= MULTI_HOST=1 What public and private network configuration are recommended

Hence, you will not be able to access your instance at all, at least from the OpenStack's web GUI. Although it is of course possible to set up the password after the first logging in to your machine with SSH, I recommend setting it up during configuring the machine. In order to do so, you have t OpenStack can inject a public ssh key into an instance on launch, so that it's ready for you to access using the private key once it is ready. Go ahead and create a new VM with the key pair uploaded OpenStack Launch Instance. Login to OpenStack, then click on Instances in the left-hand side menu. Once on the Instances screen, click Launch Instance to pull up the new instance settings dialog box. When the dialog box appears, the Details tab will be the first setting selected. Go through the tab and enter the appropriate information OpenStack security group acts as a virtual firewall that controls the connection to/from instances. Security groups should be created to allow connections like SSH, HTTP, HTTPS, etc. Here, we will create a security group to allow ICMP and SSH connections

OpenStack VM | SAP Blogs

SSH into an Instance InMotion Hostin

  1. However, am not able to ssh to instances either through router namespace, i.e., ip netns exec qr-xxxx ssh -i <full path to key> cirros@privateipaddr, or from outside. I've generated key-pairs both through dashboard and nova, with similar results. Also tried chmod 0600 key, ssh-add key to no avail
  2. After creating instance, I am able to access the instance from the console on OpenStack Dashboard. Router External IP is listed as Instance External IP is listed as . I have created security rules for SSH and ICMP but still I am not able to do SSH and ping the instance using the External IP (
  3. Openstack can t SSH to instance. can't ssh to instance, I had created few instance and putted in security group where all tcp are allow ( icmp and ssh ). I can ping the instance from floating ip but when From the ssh log, it seems none of your keys matched the public key on the server
  4. By inserting an SSH key pair to a VM instance during its launch, stronger security is ensured to the VM instance. Let us see how to create an SSH key pair inside the OpenStack dashboard, below. After logging into the Horizon, connect to the correct project. (Project name is displayed on the upper right-hand corner of the screen)

How can I do SSH inside my instance in OpenStack Edureka

SSH Keys for OpenStack Access. Due to our AFSHomeDirectory structure ssh public key authentication is not generally used for CSAIL . Kerberos authentication, which SSH keys do not provide, is required to authenticate to the filesystem containing your home directory, so logging into a CSAIL system with public keys would result in logging in but having no access to your home directory Troubleshooting OpenStack Compute services can be a complex issue, but working through problems methodically and logically will help you reach a satisfactory outcome. Carry out the following suggested steps when encountering the different problems presented. Steps for when you cannot ping or SSH to an instance Base command to SSH into an instance: $ openstack server ssh Example command to SSH into an instance which has been created on the provider network: $ openstack server ssh -- centos --identity ~/.ssh/ssh_key --address-type fixed cf491bcc-6050-4024-a72e-70d4e8fe8db6 --address-type can be public, private, or fixe

Configure access and security for instances - OpenStac

  1. I created a public/private key in Openstack. I spun up an instance of CentOS with the key already assigned. I took my private key on my local machine and used cygwin to run the following command: ssh -vv -i privatekeylocation.pem username@serverURL I attached the debug logs below
  2. Using the key I launched > the instance B but when I ssh from the instance A after a while it reads: > > > > Read from socket failed: Connection timed out > > > > I even tried with ssh -v hostname to test on one the machine outside > openstack and the instance
  3. Openstack Dashboard has a very handy feature that allows a user to connect to our running instances through a VNC (Virtual Network Console) session within our Web browser. This gives us the ability to manage our instance through a virtual console window without invoking an SSH session separately, and is a great feature for accessing desktop instances such as those running Windows
  4. Boot an instance using the CLI, adding --user-data user-data.txt to the end of the boot command.. When the instance has booted, log into the instance, switch to root and look in the directory. You will see the new file, and it will contain boot instance test.. This is a very simple example of what you can do with cloud-config, but you can see from this simple example that you can easily start.
  5. , 1 users, load average: 0.00, 0.00, 0.00
  6. To run this first play, manually launch a CentOS image in your OpenStack tenant and assign a floating IP to it. Ensure that you can log into the instance without a password using your SSH key as the centos user. Then create a simple hosts file similar to the one below, replacing 192.168..10 with your floating IP

Create and manage flavors, create and manage compute instances, generate and manage SSH keys for use when connecting to instances, access an instance using an SSH key, configure an instance with a floating IP address, create instances with security groups, manage Nova host consoles, manage instance snapshots, manage instance quotas Edit 2: To clarify: I have an active, running instance that successfully launched through the OpenStack dashboard. I can ping the instance, I can ssh into it (using 'ssh -i key.pem ip), but I cannot access it through VNC (specifically novnc on the dashboard). Trying to access the VM through the URL nova supplies through get-vnc-console does not. The openstack server migrate command is used to migrate an openstack instance from one compute host to another. For those using SSH tunneling, ensure that each node is configured with SSH key authentication so that the Compute service can use SSH to move disks to other nodes I have two running instances on my Openstack with different tenant and user for each. While trying to ssh the floating IP address, I am getting connection timed out. And also ping is not working. Solution: This is what needs to be done. Go to your instance, and security groups. Allow All TCP and Al

OpenStack Linux instance and connect to it via internet

When you create an instance, you must specify what image to create the instances from. Before you create an instance, ensure that the required images, networks, volumes, and flavors are available to you. If you wish to allow access to the instance through SSH, ensure that the administrator has created the required SSH key pair Select data on the left hand side under auto- username enter the user root. Select Auth on the left hand side then under private key for authentication select the .ppk file we just created with PuTTYGen. Now hit the Open button to connect to the SSH. You should now be logged in to the VM instance as root user OpenStack Victoria : Create Instances. 2020/11/17 : Create and Start Virtual Machine Instance. [1] Login with a user and create a config for authentication of Keystyone. The username or password in the config are just the one you added in keystone like here. Login to the instance with SSH Option 1: Use SSH keys by first having OpenStack create public/private SSH keys for you If you choose Create Key Pair, OpenStack can create an SSH keypair on the spot. You'll be able to Copy Private Key to Clipboard; If you run Linux or Mac OS, you can create an empty private key file in your local computer (e.g. in ~/.ssh/ with file. OpenStack Dashboard has a very handy feature that allows a user to connect to our running instances through a VNC session within our web browser. This gives us the ability to manage our instance without invoking an SSH session separately

OpenStack Docs: Launch and manage instance

At this point , we have created the new security group and key pair. The security group will allows ssh & ping from anywhere. Launch the New Openstack Instance : 1. Login to Openstack Dashboard. 2. Click on Launch Instance tab security group An OpenStack construct that consists of one or more rules that control access to an instance. SSH key pair A method of authentication used by OpenStack to authenticate access to instances that includes a public key and a private key. The SSH client uses a private key that is paired to a public key in the instance. stack An. Terraform OpenStack Provider. Here are some examples of the usage: Tutorial: How to Use Terraform to Deploy OpenStack Workloads; Basic OpenStack architecture with networking; Terraform Demo; Terraform example for OpenStack and Ansible; openstack_compute_instance_v2; Figure out all the Options for Openstack. Here is the Region and the Auth URL

I'm trying to deploy the Leap 15.1 cloud image from here (specifically the openSUSE-Leap-15.1-OpenStack.x86_64-..4-Build6.31.qcow2 image) in an OpenStack environment. I've uploaded it to glance and I've created an ssh-keypair. I'm trying to boot an instance with the below command: nova boot --flavor m1.medium --nic net-id=<my network's UUID> --image OpenSuseLeap15dot1 --key-name <my-key-name. ssh -v -i /home/user/.ssh/openstack root@XXX.XXX.XXX.XXX OpenSSH_6.7p1 Ubuntu-5ubuntu1.3, OpenSSL 1.0.1f 6 Jan 2014 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug1: Connecting to XXX.XXX.XXX.XXX [XXX.XXX.XXX.XXX] port 22. debug1: Connection established. debug1: identity file /home/user/.ssh/openstack type 1 debug1: key.

perform various OpenStack queries; create an instance; connect to the instance over SSH; access the cloud dashboard; Query OpenStack. The standard openstack client comes pre-installed and is invoked like so: microstack.openstack <command> To list the default keypair: microstack.openstack keypair lis [Openstack] Guest VM IP configuration script [openstack-announce] [new][tripleo] tripleo-heat-templates 5.0.0 release (newton) Re: [Openstack] Openstack Digest, Vol 34, Issue 21 . Re: issue when launching instance [openstack-dev] [Tacker] Unable to assign IP address to connection points Now you should check that the instance has been properly resized (e.g. by getting into the console and inspect the state of the instance). And if it has the expected resources, you should click the Confirm resize/migrate button to free the extra allocated resources (OpenStack keeps both the original and the resulting instances) If the instance is in Active status and it is built on Ceph volume, the follows commands allows the migration with instances reboot: $ openstack server migrate fcc624c7-24b7-4c11-b6cf-13cdae84d640. Also in this case, after the migration command it will be necessary confirm the resize: $ nova resize-confirm fcc624c7-24b7-4c11-b6cf-13cdae84d640 Start an Instance and select the network: openstack server create --flavor M --image 'Ubuntu 16.04 LTS x64' --key-name demo-key --network demo-network --security-group default --security-group ssh --security-group icmp demo-instance. The instance get an IP via DHCP from the range specified at the subnet creation

How to Login to OpenStack Instance or VM via PuTTY using

  1. Inside OpenStack you could have the following fixed IP range: 192.168../16 split into the tenants subnets. To make OpenStack instances accessible from the rest of your data center, you could define the floating IP pool as a subnet of, (i.e., and register it with OpenStack for the users to grab from
  2. g ICMP and SSH.
  3. From icmp_seq=1 Destination Host Unreachable From icmp_seq=2 Destination Host Unreachable From icmp_seq=3 Destination Host Unreachable ^C --- ping statistics --- 4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3016ms ~$ nova ssh test02 ERROR: No public addresses found for.

Part 4: How to create, launch and connect to an instance

Launch a new instance on Fuga, in this tutorial the instance is called runner-manager. The flavor c2.small is chosen with the image Ubuntu 18.04 LTS. Log in to your runner-manager instance using the following example command in your terminal: ssh ubuntu@FLOATING_IP. For other examples of SSH follow the Getting Started guide In my previous article, Using Ansible for continuous integration on OpenStack, we looked at how to use the nova_compute module in Ansible 1.9 to launch instances and configure them in a simple Ansible playbook. A set of new modules for interacting with OpenStack were released in Ansible 2.0. In this article, we'll look at how to use the new modules to launch and configure a web server in a. OpenStack Ussuri : Create Instances. 2020/06/07 : Create and Start Virtual Machine Instance. [1] Login with a user and create a config for authentication of Keystyone. The username or password in the config are just the one you added in keystone like here. Login to the instance with SSH

ping or ssh instance from my computer Openstack - YouTub

I am trying out Terraform v0.5.0 with openstack provider. When terraform attempts to connect to VM and ssh server is up, but VM does not accept authorization yet - it gives up too soon. It should try authorize a few times. In some cloud providers ssh server is up before authorized_keys is configured. Detail Now that we have the OpenStack part of things configured we can focus on getting Corosync up and running. Log in to your instances using the floating IP's you attached to them. ssh ubuntu@<instance-floating-ip> On all three nodes install Pacemaker, which has Corosync as a dependency, and the Corosync CLI: sudo apt updat For instance, here is the load average graph for an OpenStack experiment running this profile for over 6 hours. Scroll past this screenshot to see the control and experiment network traffic graphs. In your experiment, you'll want to wait 20-30 minutes before expecting to see anything interesting Openstack is a free and open-source private cloud software through which we can manage compute, network and storage resources of our data center with an ease using a single dashboard and via openstack cli commands. In this article we will demonstrate on how to install Openstack on a CentOS 8 system with packstack.Packstack is a command line utility which deploy different components of. ssh -i cloud.key <username>@<instance_ip> The username may differ based on the image used to launch your instance (e.g., ubuntu on an Ubuntu instance) and the instance_ip is your instance's IP address, which can be found on the Instances page in OpenStack

ssh-keygen openstack keypair create --public-key ~/.ssh/id_rsa.pub default openstack keypair list Security group. The next task is to create a security group called basic with rules which allow us to SSH and ping our instance Click Launch Instances, sit back and relax. Let AWS fire up the instances for you and get it running. Before moving on to the next step, make a note of the Public IPs assigned to all the 3 instances. They will be required to SSH in and later at the end access the OpenStack dashboard

Openstack image. Assuming you already have a Windows Server 2019 image on Openstack, launch an instance and install Win32-OpenSSH on it. I won't repeat OpenSSH installation instructions, these can be found here. Add your public SSH key(s) to C:\ProgramData\ssh\administrators_authorized_keys and make sure to edit the ACL of this file You also need to have access to an OpenStack environment and a functioning openstack CLI. Typically you'll configure the client by using a clouds.yaml file or via environment variables. If you're starting from scratch, this environment may need networks, SSH key pairs, security groups, etc.. set up

To use SSH to connect to your instance, use the downloaded keypair file. Procedure. Copy the IP address for your instance. Use the ssh command to make a secure connection to the instance. For example: $ ssh -i MyKey.pem demo@ At the prompt, enter yes. Parent topic: Working with Instances in OpenStack Create an OpenStack Windows instance and connect to it via internet. To create an SSH key pair click on 'Create Key Pair', fill in the name of the pair and click on the 'Create Key Pair' button at the bottom of the pop-up window. That will start a download of a .pem file - this is your private key.. Now you need to be able to connect from this instance to other instances on the private network using SSH. Since I'm lazy I'm just going to push my OpenStack keypair up to the host. scp yourkeypair.pem dhc-user@YOURFLOATINGIP:.ssh/id_rsa In order for Ansible forwarding to work properly, you'll need to install netcat Click Add Rule, choose SSH rule to open SSH port (port 22), and then click Add. You can open other ports by creating new rules. Step 6: SSH to Your Instance. Now, you can SSH your instances to the floating IP address that you got in the step 4. If you are using Ubuntu image, the SSH user will be ubuntu

Launching the first Openstack Instance - UnixArena

Next, SSH to the IP address associated with your Instance (or in other words, your VM) using: $ ssh -i <Pemfile_Name>.pem cloud-user@<IP_ADDRESS> Lets say if I was running a centOS VM with the IP address and I have a .pem file named Linux.pem. I would connect to my VM by typing in: $ ssh -i Linux.pem cloud-user@10.90.20. Can't ping or ssh to the cirros instance of the openstack instance I've launched an instance with cirros image and assigned an floating ip to it too, but the problem here is i'm unable to ping the ip-address of the instance or connect to the instance using ssh, the machine is getting connected if i'm usin To ssh into the instance, use the username cirros and the ssh key written to ~/.ssh/id_microstack: ssh -i ~/.ssh/id_microstack cirros@<IP> (Where 'IP' is listed in the output of microstack.launch) To run openstack commands, run microstack.openstack <some command> For more detail and control, read the rest of this README. :-) Accessing OpenStack

My First OpenStack Instance on DreamCompute

OpenStack resizing of instances. One thing that is not always adequately explained in the OpenStack documentation is how exactly instance resizing works, and what is required, especially while using KVM as the virtualisation provider, with multiple compute nodes. the node where the instance is currently running will use SSH to connect to. The typical metadata based datasources exposed to virtual hosts in OpenStack are: hostname, instance ID, display name, etc, and this is one of those improvements that metadata service offers. While creating hundreds of Instances in the tenant, we don't need to set the hostname for each one separately, OpenStack does it for us automatically.

Video: How do I create and use OpenStack SSH keypairs

OpenStack Security Tip: Create a keypair for accessing VM

Introduction. If you tried to access your instance using SSH as root: # ssh -i PrivateKey.pem root@Floating-IP-Address Where Flaoting-IP-Address is the flaoting IP address associated with your instance. You might get this message: Please as the user centos rather than the user root. Then the connection will close. Steps To Allow Root Access Through SSH SUMMARY Instances are virtual machines that run inside the cloud. You can launch an instance from the following sources: Images uploaded to the OpenStack Glance Image service (ephemeral instance). Image that you have copied to a persistent volume (persistent instance). GATHER DETAILS FOR INSTANCE LAUNCH Before you can launch an instance, gather the followin openstack port create --network private --fixed-ip \ subnet=private_subnet,ip-address= server1-port0. Confirm port creation: $ openstack port list $ openstack port show server1-port0 . Create a Server with fixed IP in OpenStack. Now that the port is created, we can boot a new instance with a preserved IP address

How to launch an instance using the OpenStack CLI

OpenStack provides instance resizing feature. You can resize your running instance and increase its compute power and disk size by assigning different flavor to your instance. You can also reduce the compute power but can not reduce disk size of any instance using this feature. When OpenStack's nova is instructed to resize an instance i So while my OpenStack instances have a private ip address, they can still be accessed remotely via the ssh gateway server. Another option would be to run Ansible from inside the tenant. host openstack-gw Hostname some.floating.ip.address User ubuntu host 10.2.*.* ProxyCommand ssh -q openstack-gw netcat %h 22 User ubunt At least one image stored in Glance on the compute node as described in OpenStack:_Storing_Images_In_Glance. An SSH key on a node for remote access to the OpenStack nodes as described in Creating SSH keys. Procedure . Boot an Instance (Cirros image example shown below): Run the neutron net-list command to get a list of networks

Im not sure if openstack is supposed to work like this. I create an instance, assign a keypair, then hit view console, but it never uses the keypair, it asks for user/pass. If I do it the long way and download the public key, then ssh -i key ubuntu@ from the openstack server I can get in, but that is not very end user friendly when they create servers, which is what we are trying to. Instances are virtual machines that run inside OpenStack's cloud. You will need to launch a new instance from the SBC Image created in the #Upload an Image section Launching an instance . Log in to the dashboard. Select the appropriate project from the drop down menu at the top left. On the Project tab, open the Compute tab and click Instances.

Once the instance creation is done it can be accessible directly using its floating IP over ssh. Just need to download the 'ansible_key'. # openstack server show Ansible_Demo_Instanc If the instance is running, OpenStack stops, resizes, and restarts the instance after the hypervisors are resized (except PowerVM® instance). Active resize is supported for PowerVC instances. The instances stay active during the resizing progress. As a Nova user, ensure the hypervisors can ssh to each other by public key

Openstack: How to use ssh keypairs in openstack instance

After shutdown your instance you can run this command to increase memory where nova resize is openstack command, OVS-VM is the instance name, 10 is the extended flavor id and -poll is the resize option. [stack@undercloud (overcloudrc) ~]$ nova resize OVS-VM-3 10 --poll Server resizing 100% complete Finished [stack@undercloud (overcloudrc) ~]$ .\nova-password.exe -private-key-path <ssh file path> <instance name>} When you execute above 2 commands, you will be prompted to enter passwords. Open stack Password will be your Global password and Private key password is the password you used to generate ssh file. End of successful running, you will get Nova password that can be used to. Openstack instances can be launched using command line without using the horizon dashboard service. In this tutorial series, we yet configure horizon. I would like to create the new openstack instance without horizon using command line. To launch an instance, we must at least specify the OS flavour, image name, network, security group, key, and instance [ It is also possible to SSH into an instance without an SSH keypair, if the administrator has enabled root password injection. For more information about root password injection, see Injecting the administrator password in the OpenStack Administrator Guide

Connect to your new instance via ssh using the floating IP address you associated in the previous step and the keypair.pem file you downloaded in step #9. You can find always see your floating IP address on the instances overview screen.SSH Command: ssh -i <keypair.pem> centos@<floating_ip> Example: ssh -i my-keypair.pem centos@ Connect to an Instance by Using SSH 30 Track Instance Use 30 Create a Snapshot from an Instance 30 Use Affinity to Control OpenStack Instance Placement 31 7 You can launch OpenStack instances using the imported image. See Start an OpenStack Instance from an Image . In the Actions column next to an image, you can also edit the image, update. Server (Instance) Create an instance/server using the flavor m1.petite, key as webkey, security group as ssh and Router1 network. openstack server create --image webimage --flavor m1.petite --key-name webkey --security-group ssh --nic net-id=private webserver. Create a floating IP for the instance. openstack ip floating create publi

openstack - Unable to SSH to Devstack Instance from an

openstack security group rule create --protocol icmp ${OS_USERNAME}-global-ssh Upload SSH key - do this once If you have an SSH key upload id_rsa & id_rsa.pub to nov To generate a key pair, run the following command. [user@localhost]$ openstack keypair create KEY_NAME > MY_KEY.pem. This command generates a key pair using the names you specified and writes them to a .pem file. The Key Pair is then registered within your DreamCompute dashboard. You can view the list on the Compute > Key Pairs page

How to Launch an OpenStack Instance using Horizon Dashboard

Migrating compute instances is very usefull. It allows an administrator to free up a compute node for maintenance/updates. It also allows an administrator to better distribute resources between compute nodes. Openstack provides a few different ways to migrate virtual machines from one compute node to another test_ssh_to_hosts test_horizon_create_delete_instance test_add_host_simplex_negative test_ping_between_two_vms[default-virtio-virtio] SANITY-OPENSTACK 01-Instance-From-Image Create Flavors For Instances Create Images For Instances Create Networks For Instances Launch Instances Red Hat OpenStack Platform uses cloud-init to place an ssh public key on each instance as it is created to allow ssh access to the instance. Red Hat OpenStack Platform expects the user to hold the private key. Losing the private key will cause the inability to access the instances Associating a Port to an instance using OpenStack CLI. SSH into the OpenStack node where the Neutron and Nova client software packages are installed. Source the shell RC file to initialize the environment variables required for the CLI commands as seen in the earlier recipes This way it seems that the openstack instance gets first the floating ip assigned correctly and so later it can of course be reached via ssh. Again what seems to be occurring is that a provisioner file-type block within the openstack_compute_instance is preventing the floating ip to be assigned to the instance before the provisioner step itself starts