Kubernetes – Save all manifest of an existing cluster

  To save all manifests, create a BASH script:   With the following contents:   Add the execution bit and run it:   After executing in the current directory in the folder "k8s-manifests" will be saved all manifests ordered by namespaces and types.

GKE – Issuer DNS01

  GCP will be the DNS provider.   YOUR_GCP_PROJECT – Replace with the name of your GCP project   Create an account:   We give him access to the DNS service:   We generate the key:   Create a secret based on the generated key:   Create 2 YAML files for ClusterIssuer.   letsencrypt-staging.yml   … Continue reading "GKE – Issuer DNS01"

GKE – Nginx Ingress Installation Using HELM

  Installation instructions can be found here.   Install HELM locally:   Installing Tiller with RBAC enabled Начиная с Kubernetes v1.8+, RBAC включен по умолчанию.     Checking:   Create Nginx Ingress Controller:   If the following error occurs: Error: release nginx-ingress failed: namespaces "default" is forbidden: User "system:serviceaccount:kube-system:default" cannot get resource "namespaces" in API … Continue reading "GKE – Nginx Ingress Installation Using HELM"

Kubernetes – Status: Evicted

The status "Evicted" means that Pod was "evicted" from the node, as he lacked the resources. This can be observed if you display the following:   In order to remove all pods in the status "Evicted", do the following:

Kubernetes – CORS enable

To enable CORS in ingress, add the following:   * – allows requests from anywhere, replace it with the domain you need

Kubernetes – Ingress few backends

Configuration example Kubernetes Ingress with the choice of backend based on the value of the argument "proxy". And the default backend, if the value of the argument "proxy" is different from "1" and "2", or is missing. manifest.yaml