It runs on the master and all worker nodes. In the vSphere Client, navigate to Developer Center > API Explorer and search for namespace Navigate to vSphere Client > Hosts and Clusters > [Clustername] > Configure > Services > vSphere DRS > Edit and enable vSphere DRS. If you are on a vSphere version that is below 6.7 U3, you can either upgrade vSphere to 6.7U3 or follow one of the tutorials for earlier vSphere versions. You may now remove the vsphere.conf file created at /etc/kubernetes/. It is important to understand that the problem is usually not related to the host being not connected to a VDS, it states that the NSX-T configuration has a problem. This is expected, as we have started kubelet with cloud-provider: external.
Navigate to vSphere Client > Hosts and Clusters > [Clustername] > Configure > Services > vSphere Availability > Edit and enable vSphere HA. The vCenter at 10.0.0.1 contains credentials in the secret named cpi-engineering-secret in the namespace kube-system and the vCenter at 1.1.1.1 and 192.168.0.1 contains credentials in the secret named cpi-global-secret in the namespace kube-system defined in the global: section. Also critical if you intend on using persistent disks (persistent volume claims, pvcs) along side your deployed pods. Your SSH RSA key is usually located within your home directory: If the file doesn't exist or you need to create a new RSA key you can generate one like so: If you change the default filename youll see two files created, once the command has run. Some components must be installed on all of the nodes. Love podcasts or audiobooks? Next, setup the kubeconfig file on the master so that Kubernetes CLI commands such as kubectl may be used on your newly created Kubernetes cluster. You can also use kubectl on external (non-master) systems by copying the contents of the masters /etc/kubernetes/admin.conf to your local computer's ~/.kube/config file. Are you sure? Necessary cookies are absolutely essential for the website to function properly. The next stage is the define the resource location. The example provided here will show how to create a stateful containerized application and use the vSphere Client to access the volumes that back your application. Check it out on VMware PartnerWeb. The third option is by using VMware's 60-day evaluation licenses. Fortunately, as of the most recent release of VMwares vCenter you can easily deploy Kubernetes with VMwares Tanzu Kubernetes Grid (TKG). This file, which here we have called vsphere.conf has been populated with some sample values. # govc vm.change -vm '/datacenter/vm/k8s-node1' -e="disk.enableUUID=1", # govc vm.change -vm '/datacenter/vm/k8s-node2' -e="disk.enableUUID=1", # govc vm.change -vm '/datacenter/vm/k8s-node3' -e="disk.enableUUID=1", # govc vm.change -vm '/datacenter/vm/k8s-node4' -e="disk.enableUUID=1", # govc vm.change -vm '/datacenter/vm/k8s-master' -e="disk.enableUUID=1", # govc vm.upgrade -version=15 -vm '/datacenter/vm/k8s-node1', # govc vm.upgrade -version=15 -vm '/datacenter/vm/k8s-node2', # govc vm.upgrade -version=15 -vm '/datacenter/vm/k8s-node3', # govc vm.upgrade -version=15 -vm '/datacenter/vm/k8s-node4', # govc vm.upgrade -version=15 -vm '/datacenter/vm/k8s-master', # govc vm.option.info '/datacenter/vm/k8s-node1' | grep HwVersion, # apt install ca-certificates software-properties-common \, # curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -, # add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable", # apt install docker-ce=18.06.0~ce~3-0~ubuntu -y, # tee /etc/docker/daemon.json >/dev/null </etc/apt/sources.list.d/kubernetes.list, # apt install -qy kubeadm=1.14.2-00 kubelet=1.14.2-00 kubectl=1.14.2-00, # sysctl net.bridge.bridge-nf-call-iptables=1, # tee /etc/kubernetes/kubeadminit.yaml >/dev/null < discovery.yaml, # tee /etc/kubernetes/kubeadminitworker.yaml >/dev/null </dev/null <
Check the VM Hardware version after running the above command: SSH into all K8s worker nodes and disable swap on all nodes including master node. For Virtual Machine CPU and Memory requirements, size adequately based on workload requirements. The storage policy will be associated with the VMDK backing your application. However, Id argue these are the primary extensions youre going to want to add. Scroll down to see the response: Cluster domain-c1 does not have HA enabled. Hi, and happy new year! Cluster domain-c1 has hosts that are not licensed for vSphere Namespaces. We have set the number of replicas to 3, indicating that there will be 3 Pods, 3 PVCs and 3 PVs instantiated as part of this StatefulSet. Notify me of follow-up comments by email. This is because the master node has taints that the coredns pods cannot tolerate. Verify vsphere-cloud-controller-manager is running and all other system pods are up and running (note that the coredns pods were not running previously - they should be running now as the taints have been removed by installing the CPI): Verify node.cloudprovider.kubernetes.io/uninitialized taint is removed from all nodes. If you want to see what happens, log in to the vCenter Server using SSH and follow the wcpsvc.log: A problem I ran into during my first deployments was that my Edge VM was too small. If your Kubernetes nodes are not able to reach external repositories, then this YAML file needs to be modified to reach your local internal repo. If youre running the latest release of vCenter (7.0.1.00100) you can actually deploy a TKG cluster straight from the Workload Management screen. When you don't have VCF or the Add-on license you have to set your ESXi hosts back to "evaluation mode", which is possible up to 60 days after installation.
The resulting persistent volume VMDK is placed on a compatible datastore with the maximum free space that satisfies the Space-Efficient storage policy requirements. If you ran into that issue, just gracefully shut down the Edge VM, resize the Virtual Machine (vCenter > Edit Virtual Machine) and reboot it.
This section will cover the prerequisites that need to be in place before attempting the deployment. If you have multiple clusters, use the following command to get the id to name mapping: API Explorer You can now inform the Kubernetes user of the storage policy name. NOTE: As of CPI version 1.2.0 or higher, the preferred cloud-config format will be YAML based. Troubleshooting vSphere with Kubernetes enables you to directly run containers on your ESXi cluster. An example Secrets YAML can be used for reference when creating your own secrets.
If not, you just see the following screen showing you that something is wrong, but not why. You can also deploy everything in a virtual environment. Its important that you download the following packages appropriate for your client platform (well be using Linux): Note: You will require a VMware account to download these files. Also, notice that the token used in the worker node config is the same as we put in the master kubeadminitmaster.yaml configuration above. ), 32 Ingress IP addresses (Configured in CIDR (/27) notation.
The next step that needs to be carried out on the master node is that the flannel pod overlay network must be installed so the pods can communicate with each other.
Here is some basic information about my setup: Prior to start with Kubernetes, you have to make sure that vCenter and ESXi are properly configured. In order to initialize the master node, we need to first of all create a kubeadminit.yaml manifest file that needs to be passed to the kubeadm command. Login to the NSX-T Manager and check if there are any errors, especially in Networking > Tier-1 Gateway and Networking > Load Balancers. First, as superuser, use scp to copy /etc/kubernetes/discovery.yaml on the master to /home/ubuntu/discovery.yaml on all the nodes. You need the following information: When NSX-T is configured, the next step is to enable Kubernetes. If you have no T0 gateway for example, the following message is displayed: debug wcp [opID=5ef66d44] Found VDS [{ID:50 17 46 79 02 f5 f9 cf-ff 1a f9 db b5 50 82 84 Name:DSwitch EdgeClusters:[{ID:adac224c-0e73-40d5-b1ac-bb70540f94d3 Name:edge-cluster1 TransportZoneID:1b3a2f36-bfd1-443e-a0f6-4de01abc963e Tier0s:[] Validated:false Error:Edge cluster adac224c-0e73-40d5-b1ac-bb70540f94d3 has no tier0 gateway}] Validated:false Error:No valid edge cluster for VDS 50 17 46 79 02 f5 f9 cf-ff 1a f9 db b5 50 82 84}] for hosts 2269c8be-ea0f-4931-9886-e68a1ab91799, fb1575d6-0c5c-4721-b5be-15b89fbe5606, ff3348b9-ddf9-4e7f-af4e-26732796f99c, c4239575-acd0-4312-9ca3-edce2585722e. If youve got stuck or have a few suggestions for us to add dont hesitate to get in touch via our website or leave a comment below. You will now need to login to each of the nodes and copy the discovery.yaml file from /home/ubuntu to /etc/kubernetes. CSI, CPI and CNS are all now working. Right click on the imported VM photon-3-kube-v1.19.1+vmware.2a , select the Template menu item and choose Convert to template. If you do not have a VCF license, you can get a 365-day Evaluation Licenses by purchasing the VMUG Advantage package which costs $200.00 USD/year. Click on namespace_management/cluster_compatibility > GET > EXECUTE Kubernetes has explicit supported versions, so it has to be this version. If you want to use topology-aware volume provisioning and the late binding feature using zone/region, the node need to discover its topology by connecting to the vCenter, for this every node should be able to communicate to the vCenter. Id recommend applying the following extensions. This is a prerequisite for kubeadm. Simply extract the archive and install the tkg binary into your system or user PATH. If you do not have an NSX-T license (NSX-T is delivered with an Endpoint license), you can't create a T0 Gateway, which is required to enable Workload Management.
With the VMware Tanzu Kubernetes Grid 1.2.0 CLI archive downloaded. Workload Management Log on the vCenter Server. In this step, we will verify that the Cloud Native Storage feature released with vSphere 6.7U3 is working. We will be using flannel for pod networking in this example, so the below needs to be run on all nodes to pass bridged IPv4 traffic to iptables chains: That completes the common setup steps across both masters and worker nodes. And to complete, restart docker to pickup the new parameters. As long as the ProviderID is populated by some means - the vSphere CSI driver will work. Storage Policies configured (vSAN, LUNs, or NFS are fine but you have to use Storage Policies for all components within Kubernetes). Verify that you have installed Docker CE, kubeadm, etc, on the worker nodes before attempting to add them to the master. You need to copy and paste the contents of your public key (the .pub file). This should be the default, but it is always good practice to check. When the installation is older than 60 days, you can't assign the license and see the following message is displayed: "The license has expired and cannot be assigned." The following troubleshooting options are available: You can get the same information from DCLI and API Explorer. The tasks use the following items: The virtual disk (VMDK) that will back your containerized application needs to meet specific storage requirements.
These should be the minimum versions installed. The following steps are only done on the master. If you are completely new to NSX-T you can try the official vSphere with Kubernetes guide which also covers NSX-T configuration. At this point, you can check if the overlay network is deployed. We will show how to copy the file from the workers to the master in the next step. Once the OVA has been imported its deployed as a VM. Review your configuration and click FINISH to start the deployment. For those users deploying CPI versions 1.1.0 or earlier, the corresponding INI based configuration that mirrors the above configuration appears as the following: Create the configmap by running the following command: Verify that the configmap has been successfully created in the kube-system namespace.
As with all things, there a number of ways to deploy and manage Kubernetes on VMware. The secret for the vCenter at 10.0.0.1 might look like the following: Then to create the secret, run the following command replacing the name of the YAML file with the one you have used: Verify that the credential secret is successfully created in the kube-system namespace. You also have the option to opt-out of these cookies. Dedicated Network Port (Second VDS) for Edge VMs (Required as you can't have Edge and Compute nodes on the same network adapter, in the same VLAN. Finally, the disk.EnableUUID parameter must be set for each node VMs. You don't need the add-on license when running in evaluation mode.
Pay attention to where the steps are carried out, which will be either on the master or the worker nodes. After a controller from the cloud provider initializes this node, the kubelet removes this taint. In the vSphere Client and Navigate to Workload Management and click ENABLE. Feel free to activate the vCenter license. When you are within the 60 days, you see the remaining days: If the problem is still active, check /var/log/vmware/wcp/wcpsvc.log for errors. This can be populated by whatever means is most convenient - Ideally, the Cloud Provider Interface (CPI) would be used as it is actively maintained and updated, but if the vSphere Cloud Provider (VCP) must be used due to brownfield requirements or architectural constraints of your distribution - that is also acceptable.
It's up to you if you want to work with a command line or the browser-based API Explorer. With the most common being done on-prem with VMwares vSphere. Service CIDRs: 10.96.0.0/24 (Default Value) That also applies when you have the Enterprise Plus license, which is widely known to be a fully-featured license. In the event Status shows the state for more than 30 seconds then this usually means some sort of issue has occurred. In the following example, 1 host is not configured with NSX-T: As a Kubernetes user, define and deploy a Kubernetes Service. At first, you should verify that the DVS is version 7.0. I'm not going deep into the configuration as there are various options to get the overlay up and running. Open vSphere Client and navigate to Administration > Licensing > Licenses > Assets > Hosts, select your ESXi Hosts, click "Assign License" and set it back to Evaluation Mode. I'm deploying a Tiny Control Plane Cluster which is sufficient for 1000 pods. To install a specific version, replace the version string with the desired version number.
The CPI supports storing vCenter credentials either in: In the example vsphere.conf above, there are two configured Kubernetes secret. Docker is required as the TKG installer spins up several docker containers used to connect to and configure the remote vCenter server and its subsequent VMs. You can just install ESXi and vCenter without a license to activate a fully-featured 60-day evaluation. On the Review and finish page, review the policy settings, and click Finish. This article explains how to get your cluster enabled for the so-called "Workload Management". The command to install flannel on the master is as follows: Please follow these alternative instructions to install a pod overlay network other than flannel. To have the worker node(s) join to the master, a worker node kubeadm config yaml file must be created. Real-time security and compliance delivered.
This can be in your management network to keep the setup simple. Upon clicking connect youll see your available data-centers show up. The installer should catch up and finish.
The command lists all compatibility reasons for your cluster(s): You don't see cluster names in the output. Congratulations, youve now got a Kubernetes cluster up and running on top of your VMware cluster. While performing the workflow tasks, you alternate the roles of a vSphere user and Kubernetes user. Grab the cluster credentials with: Using the command above,copy and paste it into our kubectl command, to set your new context.
DNS Server: 192.168.250.1 Setup steps required on all nodes The discovery.yaml file must exist in /etc/kubernetes on the nodes.
Bootstrap the Kubernetes master node using the cluster configuration file created in the step above. The following sample YAML file includes the Space-Efficient storage policy that you created earlier using the vSphere Client. Note the reference to an external cloud provider in the nodeRegistration part of the manifest. The discovery.yaml file will need to be copied to /etc/kubernetes/discovery.yaml on each of the worker nodes. This also works along side NSX-T Data-center edition for additional management functionality and networking. Finally, review your configuration and click Deploy management cluster. If you have multiple vCenters as in the example vsphere.conf above, your Kubernetes Secret YAML could look like the following to storage the vCenter credentials for vCenters at 1.1.1.1 and 192.168.0.1: Kubernetes allows you to place Pods and Persistent Volumes on specific parts of the underlying infrastructure, e.g. This can be done directly from the vSphere web UI. Do not power on the VM. If you have vExpert or any other licenses do not activate ESXi with Enterprise Plus as it will remove the "Workload Management" feature. If nothing is listed here, make sure you have imported the OVA and converted it from a VM into an OVA template. Verify the status of docker via the following command: The next step is to install the main Kubernetes components on each of the nodes. There are a few more contained within the archive. To go to the CNS UI, login to the vSphere client, then navigate to Datacenter Monitor Cloud Native Storage Container Volumes and observe that the newly created persistent volumes are present.
The initial NSX-T configuration is quite complex. Additional note: You can reactivate the license when Workload Management has been enabled. This is where your Kubernetes cluster will reside and the data-store used by the virtual machines. However, to use placement controls, the required configuration steps needs to be put in place at Kubernetes deployment time, and require additional settings in the vSphere.conf of both the CPI and CSI. Again, these steps are only carried out on the master.
The last and final stage is to again select the Proton Kube OVA which we downloaded earlier as the base image for the workers and management virtual machines.
This is surprisingly easy using the tkg command. As the setup needs to pull down and deploy multiple images for the Docker containers which are used to bootstrap the Tanzu management cluster. Cluster domain-c1 must have DRS enabled and set to fully automated to enable vSphere namespaces. This step is necessary so that the VMDK always presents a consistent UUID to the VM, thus allowing the disk to be mounted properly. If youre configuring a new network please ensure nodes deployed to that network will receive an IP address via DHCP and connect to the internet. Obviously, you will need to modify this file to reflect your own vSphere configuration. This post will form part of a series of posts on running Zercurity on top of Kubernetes in a production environment.
VMware provides a number of helpful extensions to add monitoring, logging and ingress services for web based (HTTP/HTTPS) deployments via contour.
It will also fail when you have more than one T0: debug wcp [opID=5ef66d71] Found VDS [{ID:50 17 46 79 02 f5 f9 cf-ff 1a f9 db b5 50 82 84 Name:DSwitch EdgeClusters:[{ID:adac224c-0e73-40d5-b1ac-bb70540f94d3 Name:edge-cluster1 TransportZoneID:1b3a2f36-bfd1-443e-a0f6-4de01abc963e Tier0s:[tier0-k8s tier0-2] Validated:false Error:Edge cluster adac224c-0e73-40d5-b1ac-bb70540f94d3 has more than one tier0 gateway: tier0-k8s, tier0-prod}] Validated:false Error:No valid edge cluster for VDS 50 17 46 79 02 f5 f9 cf-ff 1a f9 db b5 50 82 84}] for hosts 2269c8be-ea0f-4931-9886-e68a1ab91799, fb1575d6-0c5c-4721-b5be-15b89fbe5606, ff3348b9-ddf9-4e7f-af4e-26732796f99c, c4239575-acd0-4312-9ca3-edce2585722e. For each tool, the brew install command for MacOS is shown here. Gateway: 192.168.250.1
If you want to run everything virtual you should have a host with 128GB memory.
Here is the tutorial on deploying Kubernetes with kubeadm, using the VCP - Deploying Kubernetes using kubeadm with the vSphere Cloud Provider (in-tree). Easy fix. Your email address will not be published. You should be able to configure the overlay, create a T-0 with an external interface, connect a T-1 to the T-0 using auto-plumbing, connect a segment to the T-1, create a virtual machine in that segment, and ping to the Internet from that VM. To setup the Mongo replica set configuration, we need to connect to one of the mongod container processes to configure the replica set. The next series of steps will help configure the TKG deployment. Follow the tool specific instructions for installing the tools on the different operating systems. With the networking configuration, you can use the defaults provided here. I saw this segment network is on Management Network too. First, the Kubernetes repository needs to be added to apt. Use the following checklist to verify the configuration: During configuration, you have to enter several parameters. I saw you used for workfload network the Ingress CIDRs: 192.168.250.128/27. However, for the purposes of this post and to support older versions of ESX (vSphere 6.7u3 and vSphere 7.0) and vCenter were going to be using the TKG client utility which spins up its own simple to use web UI anyway for deploying Kubernetes. These images are automatically pulled in when CSI and CPI manifests are deployed. You can also monitor their storage policy compliance status. I have a question. This website uses cookies to give you the best online experience.
Navigate to vSphere Client > Hosts and Clusters > [Clustername] > Configure > Services > vSphere Availability > Edit and enable vSphere HA. The vCenter at 10.0.0.1 contains credentials in the secret named cpi-engineering-secret in the namespace kube-system and the vCenter at 1.1.1.1 and 192.168.0.1 contains credentials in the secret named cpi-global-secret in the namespace kube-system defined in the global: section. Also critical if you intend on using persistent disks (persistent volume claims, pvcs) along side your deployed pods. Your SSH RSA key is usually located within your home directory: If the file doesn't exist or you need to create a new RSA key you can generate one like so: If you change the default filename youll see two files created, once the command has run. Some components must be installed on all of the nodes. Love podcasts or audiobooks? Next, setup the kubeconfig file on the master so that Kubernetes CLI commands such as kubectl may be used on your newly created Kubernetes cluster. You can also use kubectl on external (non-master) systems by copying the contents of the masters /etc/kubernetes/admin.conf to your local computer's ~/.kube/config file. Are you sure? Necessary cookies are absolutely essential for the website to function properly. The next stage is the define the resource location. The example provided here will show how to create a stateful containerized application and use the vSphere Client to access the volumes that back your application. Check it out on VMware PartnerWeb. The third option is by using VMware's 60-day evaluation licenses. Fortunately, as of the most recent release of VMwares vCenter you can easily deploy Kubernetes with VMwares Tanzu Kubernetes Grid (TKG). This file, which here we have called vsphere.conf has been populated with some sample values. # govc vm.change -vm '/datacenter/vm/k8s-node1' -e="disk.enableUUID=1", # govc vm.change -vm '/datacenter/vm/k8s-node2' -e="disk.enableUUID=1", # govc vm.change -vm '/datacenter/vm/k8s-node3' -e="disk.enableUUID=1", # govc vm.change -vm '/datacenter/vm/k8s-node4' -e="disk.enableUUID=1", # govc vm.change -vm '/datacenter/vm/k8s-master' -e="disk.enableUUID=1", # govc vm.upgrade -version=15 -vm '/datacenter/vm/k8s-node1', # govc vm.upgrade -version=15 -vm '/datacenter/vm/k8s-node2', # govc vm.upgrade -version=15 -vm '/datacenter/vm/k8s-node3', # govc vm.upgrade -version=15 -vm '/datacenter/vm/k8s-node4', # govc vm.upgrade -version=15 -vm '/datacenter/vm/k8s-master', # govc vm.option.info '/datacenter/vm/k8s-node1' | grep HwVersion, # apt install ca-certificates software-properties-common \, # curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -, # add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable", # apt install docker-ce=18.06.0~ce~3-0~ubuntu -y, # tee /etc/docker/daemon.json >/dev/null <
Check the VM Hardware version after running the above command: SSH into all K8s worker nodes and disable swap on all nodes including master node. For Virtual Machine CPU and Memory requirements, size adequately based on workload requirements. The storage policy will be associated with the VMDK backing your application. However, Id argue these are the primary extensions youre going to want to add. Scroll down to see the response: Cluster domain-c1 does not have HA enabled. Hi, and happy new year! Cluster domain-c1 has hosts that are not licensed for vSphere Namespaces. We have set the number of replicas to 3, indicating that there will be 3 Pods, 3 PVCs and 3 PVs instantiated as part of this StatefulSet. Notify me of follow-up comments by email. This is because the master node has taints that the coredns pods cannot tolerate. Verify vsphere-cloud-controller-manager is running and all other system pods are up and running (note that the coredns pods were not running previously - they should be running now as the taints have been removed by installing the CPI): Verify node.cloudprovider.kubernetes.io/uninitialized taint is removed from all nodes. If you want to see what happens, log in to the vCenter Server using SSH and follow the wcpsvc.log: A problem I ran into during my first deployments was that my Edge VM was too small. If your Kubernetes nodes are not able to reach external repositories, then this YAML file needs to be modified to reach your local internal repo. If youre running the latest release of vCenter (7.0.1.00100) you can actually deploy a TKG cluster straight from the Workload Management screen. When you don't have VCF or the Add-on license you have to set your ESXi hosts back to "evaluation mode", which is possible up to 60 days after installation.
The resulting persistent volume VMDK is placed on a compatible datastore with the maximum free space that satisfies the Space-Efficient storage policy requirements. If you ran into that issue, just gracefully shut down the Edge VM, resize the Virtual Machine (vCenter > Edit Virtual Machine) and reboot it. This section will cover the prerequisites that need to be in place before attempting the deployment. If you have multiple clusters, use the following command to get the id to name mapping: API Explorer You can now inform the Kubernetes user of the storage policy name. NOTE: As of CPI version 1.2.0 or higher, the preferred cloud-config format will be YAML based. Troubleshooting vSphere with Kubernetes enables you to directly run containers on your ESXi cluster. An example Secrets YAML can be used for reference when creating your own secrets.
If not, you just see the following screen showing you that something is wrong, but not why. You can also deploy everything in a virtual environment. Its important that you download the following packages appropriate for your client platform (well be using Linux): Note: You will require a VMware account to download these files. Also, notice that the token used in the worker node config is the same as we put in the master kubeadminitmaster.yaml configuration above. ), 32 Ingress IP addresses (Configured in CIDR (/27) notation.
The next step that needs to be carried out on the master node is that the flannel pod overlay network must be installed so the pods can communicate with each other.
Here is some basic information about my setup: Prior to start with Kubernetes, you have to make sure that vCenter and ESXi are properly configured. In order to initialize the master node, we need to first of all create a kubeadminit.yaml manifest file that needs to be passed to the kubeadm command. Login to the NSX-T Manager and check if there are any errors, especially in Networking > Tier-1 Gateway and Networking > Load Balancers. First, as superuser, use scp to copy /etc/kubernetes/discovery.yaml on the master to /home/ubuntu/discovery.yaml on all the nodes. You need the following information: When NSX-T is configured, the next step is to enable Kubernetes. If you have no T0 gateway for example, the following message is displayed: debug wcp [opID=5ef66d44] Found VDS [{ID:50 17 46 79 02 f5 f9 cf-ff 1a f9 db b5 50 82 84 Name:DSwitch EdgeClusters:[{ID:adac224c-0e73-40d5-b1ac-bb70540f94d3 Name:edge-cluster1 TransportZoneID:1b3a2f36-bfd1-443e-a0f6-4de01abc963e Tier0s:[] Validated:false Error:Edge cluster adac224c-0e73-40d5-b1ac-bb70540f94d3 has no tier0 gateway}] Validated:false Error:No valid edge cluster for VDS 50 17 46 79 02 f5 f9 cf-ff 1a f9 db b5 50 82 84}] for hosts 2269c8be-ea0f-4931-9886-e68a1ab91799, fb1575d6-0c5c-4721-b5be-15b89fbe5606, ff3348b9-ddf9-4e7f-af4e-26732796f99c, c4239575-acd0-4312-9ca3-edce2585722e. If youve got stuck or have a few suggestions for us to add dont hesitate to get in touch via our website or leave a comment below. You will now need to login to each of the nodes and copy the discovery.yaml file from /home/ubuntu to /etc/kubernetes. CSI, CPI and CNS are all now working. Right click on the imported VM photon-3-kube-v1.19.1+vmware.2a , select the Template menu item and choose Convert to template. If you do not have a VCF license, you can get a 365-day Evaluation Licenses by purchasing the VMUG Advantage package which costs $200.00 USD/year. Click on namespace_management/cluster_compatibility > GET > EXECUTE Kubernetes has explicit supported versions, so it has to be this version. If you want to use topology-aware volume provisioning and the late binding feature using zone/region, the node need to discover its topology by connecting to the vCenter, for this every node should be able to communicate to the vCenter. Id recommend applying the following extensions. This is a prerequisite for kubeadm. Simply extract the archive and install the tkg binary into your system or user PATH. If you do not have an NSX-T license (NSX-T is delivered with an Endpoint license), you can't create a T0 Gateway, which is required to enable Workload Management.
With the VMware Tanzu Kubernetes Grid 1.2.0 CLI archive downloaded. Workload Management Log on the vCenter Server. In this step, we will verify that the Cloud Native Storage feature released with vSphere 6.7U3 is working. We will be using flannel for pod networking in this example, so the below needs to be run on all nodes to pass bridged IPv4 traffic to iptables chains: That completes the common setup steps across both masters and worker nodes. And to complete, restart docker to pickup the new parameters. As long as the ProviderID is populated by some means - the vSphere CSI driver will work. Storage Policies configured (vSAN, LUNs, or NFS are fine but you have to use Storage Policies for all components within Kubernetes). Verify that you have installed Docker CE, kubeadm, etc, on the worker nodes before attempting to add them to the master. You need to copy and paste the contents of your public key (the .pub file). This should be the default, but it is always good practice to check. When the installation is older than 60 days, you can't assign the license and see the following message is displayed: "The license has expired and cannot be assigned." The following troubleshooting options are available: You can get the same information from DCLI and API Explorer. The tasks use the following items: The virtual disk (VMDK) that will back your containerized application needs to meet specific storage requirements.
These should be the minimum versions installed. The following steps are only done on the master. If you are completely new to NSX-T you can try the official vSphere with Kubernetes guide which also covers NSX-T configuration. At this point, you can check if the overlay network is deployed. We will show how to copy the file from the workers to the master in the next step. Once the OVA has been imported its deployed as a VM. Review your configuration and click FINISH to start the deployment. For those users deploying CPI versions 1.1.0 or earlier, the corresponding INI based configuration that mirrors the above configuration appears as the following: Create the configmap by running the following command: Verify that the configmap has been successfully created in the kube-system namespace.
As with all things, there a number of ways to deploy and manage Kubernetes on VMware. The secret for the vCenter at 10.0.0.1 might look like the following: Then to create the secret, run the following command replacing the name of the YAML file with the one you have used: Verify that the credential secret is successfully created in the kube-system namespace. You also have the option to opt-out of these cookies. Dedicated Network Port (Second VDS) for Edge VMs (Required as you can't have Edge and Compute nodes on the same network adapter, in the same VLAN. Finally, the disk.EnableUUID parameter must be set for each node VMs. You don't need the add-on license when running in evaluation mode.
Pay attention to where the steps are carried out, which will be either on the master or the worker nodes. After a controller from the cloud provider initializes this node, the kubelet removes this taint. In the vSphere Client and Navigate to Workload Management and click ENABLE. Feel free to activate the vCenter license. When you are within the 60 days, you see the remaining days: If the problem is still active, check /var/log/vmware/wcp/wcpsvc.log for errors. This can be populated by whatever means is most convenient - Ideally, the Cloud Provider Interface (CPI) would be used as it is actively maintained and updated, but if the vSphere Cloud Provider (VCP) must be used due to brownfield requirements or architectural constraints of your distribution - that is also acceptable.
It's up to you if you want to work with a command line or the browser-based API Explorer. With the most common being done on-prem with VMwares vSphere. Service CIDRs: 10.96.0.0/24 (Default Value) That also applies when you have the Enterprise Plus license, which is widely known to be a fully-featured license. In the event Status shows the
The CPI supports storing vCenter credentials either in: In the example vsphere.conf above, there are two configured Kubernetes secret. Docker is required as the TKG installer spins up several docker containers used to connect to and configure the remote vCenter server and its subsequent VMs. You can just install ESXi and vCenter without a license to activate a fully-featured 60-day evaluation. On the Review and finish page, review the policy settings, and click Finish. This article explains how to get your cluster enabled for the so-called "Workload Management". The command to install flannel on the master is as follows: Please follow these alternative instructions to install a pod overlay network other than flannel. To have the worker node(s) join to the master, a worker node kubeadm config yaml file must be created. Real-time security and compliance delivered.
This can be in your management network to keep the setup simple. Upon clicking connect youll see your available data-centers show up. The installer should catch up and finish.
The command lists all compatibility reasons for your cluster(s): You don't see cluster names in the output. Congratulations, youve now got a Kubernetes cluster up and running on top of your VMware cluster. While performing the workflow tasks, you alternate the roles of a vSphere user and Kubernetes user. Grab the cluster credentials with: Using the command above,copy and paste it into our kubectl command, to set your new context.
DNS Server: 192.168.250.1 Setup steps required on all nodes The discovery.yaml file must exist in /etc/kubernetes on the nodes.
Bootstrap the Kubernetes master node using the cluster configuration file created in the step above. The following sample YAML file includes the Space-Efficient storage policy that you created earlier using the vSphere Client. Note the reference to an external cloud provider in the nodeRegistration part of the manifest. The discovery.yaml file will need to be copied to /etc/kubernetes/discovery.yaml on each of the worker nodes. This also works along side NSX-T Data-center edition for additional management functionality and networking. Finally, review your configuration and click Deploy management cluster. If you have multiple vCenters as in the example vsphere.conf above, your Kubernetes Secret YAML could look like the following to storage the vCenter credentials for vCenters at 1.1.1.1 and 192.168.0.1: Kubernetes allows you to place Pods and Persistent Volumes on specific parts of the underlying infrastructure, e.g. This can be done directly from the vSphere web UI. Do not power on the VM. If you have vExpert or any other licenses do not activate ESXi with Enterprise Plus as it will remove the "Workload Management" feature. If nothing is listed here, make sure you have imported the OVA and converted it from a VM into an OVA template. Verify the status of docker via the following command: The next step is to install the main Kubernetes components on each of the nodes. There are a few more contained within the archive. To go to the CNS UI, login to the vSphere client, then navigate to Datacenter Monitor Cloud Native Storage Container Volumes and observe that the newly created persistent volumes are present.
The initial NSX-T configuration is quite complex. Additional note: You can reactivate the license when Workload Management has been enabled. This is where your Kubernetes cluster will reside and the data-store used by the virtual machines. However, to use placement controls, the required configuration steps needs to be put in place at Kubernetes deployment time, and require additional settings in the vSphere.conf of both the CPI and CSI. Again, these steps are only carried out on the master.
The last and final stage is to again select the Proton Kube OVA which we downloaded earlier as the base image for the workers and management virtual machines.
This is surprisingly easy using the tkg command. As the setup needs to pull down and deploy multiple images for the Docker containers which are used to bootstrap the Tanzu management cluster. Cluster domain-c1 must have DRS enabled and set to fully automated to enable vSphere namespaces. This step is necessary so that the VMDK always presents a consistent UUID to the VM, thus allowing the disk to be mounted properly. If youre configuring a new network please ensure nodes deployed to that network will receive an IP address via DHCP and connect to the internet. Obviously, you will need to modify this file to reflect your own vSphere configuration. This post will form part of a series of posts on running Zercurity on top of Kubernetes in a production environment.
VMware provides a number of helpful extensions to add monitoring, logging and ingress services for web based (HTTP/HTTPS) deployments via contour.
It will also fail when you have more than one T0: debug wcp [opID=5ef66d71] Found VDS [{ID:50 17 46 79 02 f5 f9 cf-ff 1a f9 db b5 50 82 84 Name:DSwitch EdgeClusters:[{ID:adac224c-0e73-40d5-b1ac-bb70540f94d3 Name:edge-cluster1 TransportZoneID:1b3a2f36-bfd1-443e-a0f6-4de01abc963e Tier0s:[tier0-k8s tier0-2] Validated:false Error:Edge cluster adac224c-0e73-40d5-b1ac-bb70540f94d3 has more than one tier0 gateway: tier0-k8s, tier0-prod}] Validated:false Error:No valid edge cluster for VDS 50 17 46 79 02 f5 f9 cf-ff 1a f9 db b5 50 82 84}] for hosts 2269c8be-ea0f-4931-9886-e68a1ab91799, fb1575d6-0c5c-4721-b5be-15b89fbe5606, ff3348b9-ddf9-4e7f-af4e-26732796f99c, c4239575-acd0-4312-9ca3-edce2585722e. For each tool, the brew install command for MacOS is shown here. Gateway: 192.168.250.1
If you want to run everything virtual you should have a host with 128GB memory.
Here is the tutorial on deploying Kubernetes with kubeadm, using the VCP - Deploying Kubernetes using kubeadm with the vSphere Cloud Provider (in-tree). Easy fix. Your email address will not be published. You should be able to configure the overlay, create a T-0 with an external interface, connect a T-1 to the T-0 using auto-plumbing, connect a segment to the T-1, create a virtual machine in that segment, and ping to the Internet from that VM. To setup the Mongo replica set configuration, we need to connect to one of the mongod container processes to configure the replica set. The next series of steps will help configure the TKG deployment. Follow the tool specific instructions for installing the tools on the different operating systems. With the networking configuration, you can use the defaults provided here. I saw this segment network is on Management Network too. First, the Kubernetes repository needs to be added to apt. Use the following checklist to verify the configuration: During configuration, you have to enter several parameters. I saw you used for workfload network the Ingress CIDRs: 192.168.250.128/27. However, for the purposes of this post and to support older versions of ESX (vSphere 6.7u3 and vSphere 7.0) and vCenter were going to be using the TKG client utility which spins up its own simple to use web UI anyway for deploying Kubernetes. These images are automatically pulled in when CSI and CPI manifests are deployed. You can also monitor their storage policy compliance status. I have a question. This website uses cookies to give you the best online experience.