Configura il provider cloud OpenStack per Kubernetes
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Questa guida spiega come configurare il
provider cloud OpenStack per Kubernetes
nel cluster bare metal. Il provider cloud OpenStack deve essere configurato per esporre i servizi Kubernetes utilizzando OpenStack LBaaS.
Prerequisiti
Questa guida presuppone che tu abbia un cluster creato con Google Distributed Cloud in esecuzione nel tuo ambiente OpenStack con una configurazione simile a quella descritta nella guida Eseguire il deployment di un cluster bare metal su OpenStack. Segui prima questa guida prima di provare
questi passaggi.
Configura il provider
La sezione seguente presuppone che tu stia iniziando da una finestra del terminale nella
la tua workstation locale.
Importa il file di configurazione del client OpenStack (openrc). Puoi scaricarla dalla UI web di OpenStack.
sourcePATH_TO_OPENRC_FILE/openrc
Crea il file di configurazione per il provider cloud OpenStack Kubernetes.
cat > cloud.conf << EOF
[Global]
auth-url=${OS_AUTH_URL}
username=${OS_USERNAME}
password=${OS_PASSWORD}
region=RegionOne
tenant-name=admin
domain-id=default
# this is for using a self-signed cert if your using a CA then comment this line
# and point to the CA certificate using the "ca-file" arg
tls-Insecure=true
[LoadBalancer]
use-octavia=true
# this is generally the public network on OpenStack
floating-network-id=PUBLIC_NETWORK_ID
# this should be private network subnet where vip is allocated for the ABM nodes
subnet-id=ABM_NETWORK_SUBNET_ID
[BlockStorage]
bs-version=v2
EOF
Sostituisci quanto segue:
OS_AUTH_URL, OS_USERNAME,
OS_PASSWORD: queste variabili dovrebbero essere già impostate
nell'ambiente tramite il file di origine openrc. Pertanto, verranno rilevati automaticamente.
PUBLIC_NETWORK_ID: si tratta della rete accessibile pubblicamente nel tuo deployment OpenStack da cui vengono allocati gli indirizzi IP mobili. È da questa rete che verrà assegnato il LoadBalancer IPs per i servizi Kubernetes. Puoi utilizzare un
comando di una riga
per recuperare questo indirizzo IP dal tuo ambiente OpenStack.
ABM_NETWORK_SUBNET_ID: si tratta della sottorete della rete privata nel deployment OpenStack da cui vengono allocati gli IP per le VM che eseguono solo software Google Distributed Cloud. Puoi utilizzare un
comando simile a
Ottieni l'ID della rete pubblica in OpenStack
per recuperare questo IP dal tuo ambiente OpenStack.
Recupera l'indirizzo IP mobile pubblico della VM abm-ws.
exportOPENSTACK_IPS=$(openstackfloatingiplist--tags=abm_ws_floatingip-fjson)exportFLOATING_IP=$(jq-c'.[]."Floating IP Address"' <<< $OPENSTACK_IPS|tr-d'"')
Copia il file cloud.conf nella VM abm-ws in OpenStack.
scp./cloud.confubuntu@$FLOATING_IP:~
Utilizza SSH per connetterti in modo sicuro alla VM abm-ws e accedi come utente root.
Copia i file cloud.conf nella directory $HOME dell'utente root.
cp/home/ubuntu/cloud.conf$HOME
Crea un Kubernetes Secret con la configurazione.
# make sure the kubectl client is pointing towards your clusterexportKUBECONFIG=~/bmctl-workspace/CLUSTER_NAME/CLUSTER_NAME-kubeconfig
# store the provider configurations as a Kubernetes secret
kubectlcreatesecret-nkube-systemgenericcloud-config--from-file=cloud.conf
Installa il provider cloud OpenStack per Kubernetes.
# create the necessary roles for the OpenStack provider
kubectlapply-fhttps://raw.githubusercontent.com/kubernetes/cloud-provider-openstack/master/manifests/controller-manager/cloud-controller-manager-roles.yaml
# create the required role-bindings for the OpenStack provider
kubectlapply-fhttps://raw.githubusercontent.com/kubernetes/cloud-provider-openstack/master/manifests/controller-manager/cloud-controller-manager-role-bindings.yaml
# create the OpenStack controller manager
kubectlapply-fhttps://raw.githubusercontent.com/kubernetes/cloud-provider-openstack/master/manifests/controller-manager/openstack-cloud-controller-manager-ds.yaml
# wait for the external IP to be assigned
kubectlgetserviceapi-server-lb
NAMETYPECLUSTER-IPEXTERNAL-IPPORT(S)AGE
api-server-lbLoadBalancer10.203.77.215172.29.249.15980:32378/TCP4m12s
Applicazione point of sale a cui si accede utilizzando EXTERNAL-IP.
Puoi notare la creazione di un nuovo OpenStack Load Balancer in OpenStack visitando la UI web di OpenStack.
[[["Facile da capire","easyToUnderstand","thumb-up"],["Il problema è stato risolto","solvedMyProblem","thumb-up"],["Altra","otherUp","thumb-up"]],[["Difficile da capire","hardToUnderstand","thumb-down"],["Informazioni o codice di esempio errati","incorrectInformationOrSampleCode","thumb-down"],["Mancano le informazioni o gli esempi di cui ho bisogno","missingTheInformationSamplesINeed","thumb-down"],["Problema di traduzione","translationIssue","thumb-down"],["Altra","otherDown","thumb-down"]],["Ultimo aggiornamento 2025-09-01 UTC."],[],[],null,["This guide explains how to configure the\n[OpenStack Cloud Provider for Kubernetes](https://github.com/kubernetes/cloud-provider-openstack)\nin your bare metal cluster. The OpenStack Cloud Provider must be\nconfigured to expose Kubernetes Services using the\n[OpenStack LBaaS](https://docs.openstack.org/mitaka/networking-guide/config-lbaas.html).\n\nPrerequisites\n\nThis guide assumes that you have a cluster created with Google Distributed Cloud\nrunning in your OpenStack environment with a setup\nsimilar to what is explained in the [Deploy a bare metal cluster on\nOpenStack](/kubernetes-engine/distributed-cloud/bare-metal/docs/installing/openstack-abm-install) guide. Follow that guide first before trying\nthese steps.\n\n| **Warning:** All the commands that follow assume that the environment for Google Distributed Cloud in OpenStack was setup using this [Terraform script](https://github.com/GoogleCloudPlatform/anthos-samples/tree/master/anthos-bm-openstack-terraform#terraform-example-to-create-openstack-vms-for-anthos). Therefore, the names, such as VM name, Network name, and Root user, used in the commands are what is used by the Terraform script. Adjust the commands according to your setup if you configured the OpenStack environment manually.\n\nConfigure the provider\n\nThe following section assumes that you are starting from a terminal window in\nyour local workstation.\n\n1. Source the OpenStack client configuration (`openrc`) file. You can download\n it from the OpenStack WebUI.\n\n source \u003cvar translate=\"no\"\u003ePATH_TO_OPENRC_FILE\u003c/var\u003e/openrc\n\n2. Create the configuration file for the OpenStack Kubernetes Cloud Provider.\n\n cat \u003e cloud.conf \u003c\u003c EOF\n [Global]\n auth-url=${OS_AUTH_URL}\n username=${OS_USERNAME}\n password=${OS_PASSWORD}\n region=RegionOne\n tenant-name=admin\n domain-id=default\n # this is for using a self-signed cert if your using a CA then comment this line\n # and point to the CA certificate using the \"ca-file\" arg\n tls-Insecure=true \n\n [LoadBalancer]\n use-octavia=true\n # this is generally the public network on OpenStack\n floating-network-id=\u003cvar translate=\"no\"\u003ePUBLIC_NETWORK_ID\u003c/var\u003e\n # this should be private network subnet where vip is allocated for the ABM nodes\n subnet-id=\u003cvar translate=\"no\"\u003eABM_NETWORK_SUBNET_ID\u003c/var\u003e\n\n [BlockStorage]\n bs-version=v2\n EOF\n\n Replace the following:\n - \u003cvar translate=\"no\"\u003e\u003ccode translate=\"no\" dir=\"ltr\"\u003eOS_AUTH_URL\u003c/code\u003e\u003c/var\u003e, \u003cvar translate=\"no\"\u003e\u003ccode translate=\"no\" dir=\"ltr\"\u003eOS_USERNAME\u003c/code\u003e\u003c/var\u003e, \u003cvar translate=\"no\"\u003e\u003ccode translate=\"no\" dir=\"ltr\"\u003eOS_PASSWORD\u003c/code\u003e\u003c/var\u003e: These variables should be already set in the environment by source-ing the `openrc` file. Thus, they will be automatically picked up.\n - \u003cvar translate=\"no\"\u003e\u003ccode translate=\"no\" dir=\"ltr\"\u003ePUBLIC_NETWORK_ID\u003c/code\u003e\u003c/var\u003e: This is the publicly accessible network in your OpenStack deployment from which **Floating IP addresses** are allocated. It is from this network the `LoadBalancer IPs` for the Kubernetes services will be assigned. You can use a [one-line command](https://github.com/GoogleCloudPlatform/anthos-samples/blob/master/anthos-bm-openstack-terraform/docs/openstack_cloud_provider.md#4-get-the-id-of-the-public-network-in-openstack) to fetch this IP from your OpenStack environment.\n - \u003cvar translate=\"no\"\u003e\u003ccode translate=\"no\" dir=\"ltr\"\u003eABM_NETWORK_SUBNET_ID\u003c/code\u003e\u003c/var\u003e: This is the subnet on the private network in your OpenStack deployment from which IPs are allocated for the VMs running Google Distributed Cloud software-only. You can use a command similar to [Get the ID of the public network in OpenStack](https://github.com/GoogleCloudPlatform/anthos-samples/blob/master/anthos-bm-openstack-terraform/docs/openstack_cloud_provider.md#5-get-the-id-of-the-subnetwork-connecting-the-anthos-on-bare-metal-vms-in-openstack) to fetch this IP from your OpenStack environment.\n\n | **Note:** Edit the `cloud.conf` file to meet your needs and environment. What is shown here is only an example. For more information about all configuration parameters, see the [OpenStack Cloud Provider docs](https://github.com/kubernetes/cloud-provider-openstack/blob/master/docs/openstack-cloud-controller-manager/using-openstack-cloud-controller-manager.md#config-openstack-cloud-controller-manager).\n3. Fetch the **public floating IP address** of the `abm-ws` VM.\n\n export OPENSTACK_IPS=$(openstack floating ip list --tags=abm_ws_floatingip -f json)\n export FLOATING_IP=$(jq -c '.[].\"Floating IP Address\"' \u003c\u003c\u003c $OPENSTACK_IPS | tr -d '\"')\n\n4. Copy the `cloud.conf` file into the `abm-ws` VM in OpenStack.\n\n scp ./cloud.conf ubuntu@$FLOATING_IP:~\n\n | **Note:** If you have public key authentication configured for your VM use the `\"-o IdentitiesOnly=yes -i \u003cPATH_TO_KEY\u003e\"` flags with the SCP/SSH commands.\n5. Use SSH to connect securely to the `abm-ws` VM and sign in as a `root` user.\n\n The `root` user as configured by the\n [Terraform scripts](https://github.com/GoogleCloudPlatform/anthos-samples/tree/master/anthos-bm-openstack-terraform#terraform-example-to-create-openstack-vms-for-anthos)\n is `abm`. \n\n ssh ubuntu@$FLOATING_IP\n sudo -u abm -i\n\n6. Copy the `cloud.conf` files into the `$HOME` directory of the `root` user.\n\n cp /home/ubuntu/cloud.conf $HOME\n\n7. Create a `Kubernetes Secret` with the configuration.\n\n # make sure the kubectl client is pointing towards your cluster\n export KUBECONFIG=~/bmctl-workspace/\u003cvar translate=\"no\"\u003eCLUSTER_NAME\u003c/var\u003e/\u003cvar translate=\"no\"\u003eCLUSTER_NAME\u003c/var\u003e-kubeconfig\n\n # store the provider configurations as a Kubernetes secret\n kubectl create secret -n kube-system generic cloud-config --from-file=cloud.conf\n\n8. Install the OpenStack Cloud Provider for Kubernetes.\n\n # create the necessary roles for the OpenStack provider\n kubectl apply -f https://raw.githubusercontent.com/kubernetes/cloud-provider-openstack/master/manifests/controller-manager/cloud-controller-manager-roles.yaml\n\n # create the required role-bindings for the OpenStack provider\n kubectl apply -f https://raw.githubusercontent.com/kubernetes/cloud-provider-openstack/master/manifests/controller-manager/cloud-controller-manager-role-bindings.yaml\n\n # create the OpenStack controller manager\n kubectl apply -f https://raw.githubusercontent.com/kubernetes/cloud-provider-openstack/master/manifests/controller-manager/openstack-cloud-controller-manager-ds.yaml\n\nValidate the OpenStack integration\n\n1. Deploy the sample\n [Point-Of-Sales application](https://github.com/GoogleCloudPlatform/point-of-sale).\n\n kubectl apply -f https://raw.githubusercontent.com/GoogleCloudPlatform/anthos-samples/master/anthos-bm-openstack-terraform/resources/point-of-sales.yaml\n\n2. Verify if the application pods are running.\n\n kubectl get pods\n\n Expected output: \n\n NAME READY STATUS RESTARTS AGE\n api-server-7db4777f7f-zflk5 1/1 Running 0 74s\n inventory-58c6fb5568-dqk2x 1/1 Running 0 74s\n payments-68d5d65d5c-5mjl6 1/1 Running 0 74s\n\n3. Exposed the application through a service of type `LoadBalancer`.\n\n kubectl apply -f https://raw.githubusercontent.com/GoogleCloudPlatform/anthos-samples/master/anthos-bm-openstack-terraform/resources/point-of-sales-service.yaml\n\n4. Try accessing the service from a browser.\n\n # wait for the external IP to be assigned\n kubectl get service api-server-lb\n\n NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE\n api-server-lb LoadBalancer 10.203.77.215 172.29.249.159 80:32378/TCP 4m12s\n\n Point-Of-Sales application accessed using the `EXTERNAL-IP`.\n\n You can notice a new **OpenStack Load Balancer** being created in OpenStack by\n visiting the OpenStack WebUI."]]
