AWS – Lambda: kubectl

An example of how you can create entities in Kubernetes using AWS Lambda. The function will be in Python3, so we will use Kubernetes Python Client More usage examples can be found here. Since AWS Lambda does not support this package, we will pack the "kubernetes" and "boto3" modules in our function. "boto3" is needed … Continue reading "AWS – Lambda: kubectl"

Jenkins – Kubeconfig

  To store and switch between Kubernetes configurations, you can use the Kubernetes CLI plugin, to work with it, "kubectl" must be installed in the system Install the plugin Go to "Manage Jenkins"   Section "Manage Plugins"   Go to the "Available" tab and in the search indicate "Kubernetes CLI" Install it.   Add Kubernetes … Continue reading "Jenkins – Kubeconfig"

 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