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<h1>K8s devops</h1>
<p>[youtube]</p>
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<h1>Deploy to Kubernetes</h1>
<p><strong>Azure Pipelines</strong></p>
<p>Azure Pipelines can be used to deploy to Kubernetes clusters offered by multiple cloud providers. This document contains the concepts associated with setting up deployments for any Kubernetes cluster.</p>
<p>While it is possible to use script for loading kubeconfig files onto the agent from a remote location or secure files and then use kubectl for performing the deployments, the KubernetesManifest task and Kubernetes service connection can be used to do this in a simpler and more secure way.</p>
<h2>KubernetesManifest task</h2>
<p>KubernetesManifest task has the added benefits of being able to check for object stability before marking a task as success/failure, perform artifact substitution, add pipeline traceability-related annotations onto deployed objects, simplify creation and referencing of imagePullSecrets, bake manifests using Helm or kustomization.yaml or Docker compose files, and aid in deployment strategy rollouts.</p>
<h2>Kubernetes resource in environments</h2>
<p>Kubernetes resource in environments provides a secure way of specifying the credential required to connect to a Kubernetes cluster for performing deployments.</p>
<h3>Resource creation</h3>
<p>In the <strong>Azure Kubernetes Service</strong> provider option, once the subscription, cluster and namespace inputs are provided, in addition to fetching and securely storing the required credentials, for an RBAC enabled cluster ServiceAccount and RoleBinding objects are created such that the ServiceAccount is able to perform actions only on the chosen namespace.</p>
<p>The <strong>Generic provider</strong> (reusing existing ServiceAccount) option can be used to configure a connection to any cloud provider's cluster (AKS/EKS/GKE/OpenShift/etc.).</p>
<h2>Example</h2>
<p>Note that to allow image pull from private registries, prior to the deploy action, the createSecret action is used along with instances of Docker registry service connection to create imagePullSecrets that are subsequently referenced in the step corresponding to deploy action.</p>
<p><ul>
<li>If setting up an end-to-end CI-CD pipeline from scratch for a repository containing a Dockerfile, checkout the Deploy to Azure Kubernetes template, which constructs an end-to-end YAML pipeline along with creation of an environment and Kubernetes resource to help visualize these deployments.</li>
<li>While YAML based pipeline currently supports triggers on a single Git repository, if triggers are required for manifest files stored in another Git repository or if triggers are required for Azure Container Registry or Docker Hub, usage of release pipelines instead of a YAML based pipeline is recommended for doing the Kubernetes deployments.</li>
</ul>
</p>
<h2>Alternatives</h2>
<p>Instead of using the KubernetesManifest task for deployment, one can also use the following alternatives:</p>
<h2>K8s devops</h2>

<h3>K8s devops</h3>
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<h4>K8s devops</h4>
Use Azure Pipelines to deploy to Kubernetes clusters
<h5>K8s devops</h5>
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