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AKS is Azure Kubernetes,ACR that is Azure Container Registry, and ACI is Azure Container Instance. This article will explain the basic concepts of these three in detail.

Azure Kubernetes Service (AKS)

Azure Kubernetes Service is a PaaS version of Kubernetes service (hereinafter referred to as AKS) provided by Microsoft. Microsoft AKS provides us with a simple deployment mode and management interface. It mainly has the following characteristics:

Users do not need to worry about upgrade and fault repair. AKS provides simple upgrade methods and automatic troubleshooting AKS services are highly available AKS has a high degree of scalability, AKS can be quickly extended through the command line or UI to provide API Server monitoring mechanism AKS can control cluster access security through AAD and RBAC services (Master nodes) are hosted by Azure and provided to users free of charge Users only need to bear the cost of worker node

Here to tell you briefly, because AKS is a PaaS service, there is no need for users to build and maintain Master nodes, only through Kubernetes API Endpoint to use the relevant command-line tools to manage AKS. Use AKS with Azure services Helm, Azure DevOps Project, ACR, ACI, Azure Monitor to provide a complete solution from development to production environment.

Azure Container Registry (ACR)

I believe all of you are familiar with the common docker image repository docker hub, but you are very new to ACR. In fact, ACR is provided by Microsoft and can be used to store images of all container deployment types. We can understand it as a private container image repository, which can be managed using the same commands as docker registry.

ACR includes the following main concepts:

Registry: an Azure subscription can create multiple Container registries, you can log in to manage image through webhook and Azure AD, and provide local storage or remote replication usage depending on the registry type that is not available. Each registry name is presented in the form of FQDN, such as: REGISTRY_NAME.azurecr.ioRepository: each registry contains more than one repository, storage is managed in groups, and supports multi-tier namespace Image: stored in respository. When needed, you can use the docker command to remove image from repository.

Azure Container Instance (ACI)

Azure container instance Azure Container Instance (ACI) is a service that provides container application execution without managing virtual machines. It has the advantage of fast startup, and provides public IP and full domain name (FQDN), which can be accessed directly from the Internet. In addition, ACI has application dependency isolation and resource control, which is equivalent to the security management of virtual machines.

In the following figure, ACR provides storage for the container, and the Image can be removed into the ACI

There is a close cooperation relationship between ACR and ACI in Azure Kubernetes Service (AKS). Container Registry provides Images Repository, and the individual executed by Pod is ACI.

After reading the above, do you have any further understanding of AKS,ACR,ACI? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel. Thank you for reading.

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