Congratulations our deployment is applied to k8s cluster and your app is running in a docker container which is contained inside a Pod. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. to use Codespaces. Recall, you will have to build the image inside the minikubes VM. To list the available addons for your version of minikube: minikube addons list. This will create a project with necessory structure. Before you begin This tutorial assumes that you have already set up minikube. Running a test will automatically restore any required dependencies and compile the test code before executing the unit tests. Click ADD CONFIGMAP ITEM, enter appsettings.json as the Key and If you copy the link from above command and paste it in postman, you will see the result. Select Docker as the Runner type. You can see a detailed description about your pods by running the describe pod command given below. You can save this file in any directory of your pc. This IP address of the cluster can be found by running the command: Select the Minikube CA certificate we created earlier as the cluster certificate, enter randomquotes-dev as the Kubernetes namespace, and click SAVE: Repeat the process to create targets for the Test and Prod environments, updating the target name and namespace accordingly. a famous quote each time the page loads. Use Git or checkout with SVN using the web URL. 594), Stack Overflow at WeAreDevelopers World Congress in Berlin, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Preview of Search and Question-Asking Powered by GenAI. First, we create this project and run it normally, then we will run the same on the Docker and, finally, we create a deployment and service objects to deploy and run it on Kubernetes locally. Your email address will not be published. Well I think there is some pod problem or the app may be getting an error. #{appsettings} as the value. In future posts in this series, I'll describe how to use theses components to deploy an ASP.NET Core application to Kubernetes. Tutorial for basic asp.net core web api deployed on kubernetes via minikube and docker. Log back into TeamCity, and click the Build link: Select OctopusDeploy: Create release as the Runner type, and set the Octopus URL and API key: Enter Dev as the Environment(s). Learn more about the CLI. 1 Answer Sorted by: 2 I think your approach does not fit well with the architecture of Kubernetes. If you are in windows then enter the following command on your command prompt window and press enter. Notice the Dev environment is shown as optional. The deployment file will look as follows. Dont worry about what exactly is a K8S Deployment. on your Google account for Octopus to send emails via the Google SMTP server. Add the deployment file as an argument. New! not want to generate reports for deployments to this environment. Next, we need some ASP.NET Core Code running in a Docker Container, so lets spin up JetBrains Rider and create a new Web API project for example: The default code in Startup.cs is fine here: The default ValuesController is fine as well: Next, we need a Dockerfile in our project: You can just grab the sample from the official Docker docs. This ConfigMap is the one referenced by the Volume we created earlier, and the appsettings.json key is the sub path we referenced in the container volume mapping. This will create a Kubernetes volume whose files are defined in a ConfigMap. Useful Links https://docs.microsoft.com/en-us/aspnet/core/tutorials/web-api-vsc https://kubernetes.io/docs/tutorials/stateless-application/hello-minikube/ https://stackoverflow.com/questions/42564058/how-to-use-local-docker-images-in-kubernetes/42564211 Versions The matchLabels tell the deployment to apply itself to only those Pods which have the labels component: web. The following activities are a build time concern, so they will happen in TeamCity For any non-trivial application, you're going to deploy the software to multiple environments. This allows Octopus to compare and sort versions during deployment. Next, we will see how to expose the Pods by using a Kubernetes Service. First thing which is worth to note that generally minikube has a lot of possible drivers to choose from - in my case I found the docker drive to be most easiest to use.. My setup is: WSL2; Docker Desktop with Docker Desktop WLS 2 backend enabled; I used following command to start minikube: minikube start --driver=docker.If you are using other driver I suggest moving to the docker one. We're sorry this page did not help you! Click. I have a data-config.json that is used by my ASP.NET Core application. When using minikube, you have to use this command (this is different when using managed k8s): Now lets call our ASP.NET Core API via http get 192.168.99.100:31422/api/values (Im using HTTPie here, you can choose your preferred tool here maybe Postman): But wait why are we running on port 31442 and not port 80? Production deployments require sign off from someone in our project stakeholders group. It's worth the effort! environments that can be deployed to, allowing some environments to be skipped entirely, or requiring that a For linux and macOS you can just enter the command which is given below on the terminal to enter minikubes VM. Plumbing inspection passed but pressure drops to zero overnight. Itshould be placed in our project as well: This is the content of the deployment.yaml. Creations of a service is done through YAML configuration file. In the recommended configuration for ASP.NET Core, the app is hosted using ASP.NET Core Module (ANCM) for IIS, Nginx, or Apache. This is how we overwrite the contents of a Docker image file to make We'll We'll skip the Dev environment and deploy straight to Test. ClusterIP this is the default service type. Thanks for contributing an answer to Stack Overflow! For this tutorial, we assume you use Git for version controlling Expand the Environments section under the Conditions heading, select the Skip specific environments option, and select the Dev environment. Why is an arrow pointing through a glass of water only flipped vertically but not horizontally? Note the port 30001 is the value of the Pods can also communicate with one another and with the k8s cluster. See the below code: The spec field contains the containers field that describes the containers which the Pods will contain. External https on azure kubernetes managed service, Configure Kestrel for HTTPS using environmnet variables, let's encrypt https certificate for Minikube, How to add certificates to Kube config file, How to have ASP.NET Core running locally with HTTPS in Kubernetes, Creating deployment from yaml file in minikube. Here is what the full continuous integration and delivery pipeline will look like when we are finished: Deploy an ASP.NET Core application to Kubernetes using Octopus and TeamCity . You will enable the Less secure apps option The source code for the random quotes application is hosted in GitHub. TeamCity and add an additional step to create an Octopus release and then deploy it to the Dev environment. you need to choose between building your application once or building it before each deployment? Since Octopus is designed to be used by teams, in this tutorial we also set up some simple rules: This tutorial makes use of the following tools: Octopus is an extremely powerful deployment automation tool, and there are numerous ways to model a development This command tells Kubernetes to scale the number of pods up to 30. deployments in the production environment will be visible, but they cannot be created by this user: When we log in as the productiondeployer user, we see that the Random Quotes project dashboard shows The only necessity is that its extension should be .yaml or .yml. My preferred approach is to build a CLI tool that is . How can I identify and sort groups of text lines separated by a blank line? In this file we can specify number of Pods to run for the ASP.NET Core app. Click SAVE: This screen allows you to select the environment that will be deployed into. Octopus supports this workflow through the use of manual intervention steps. Proxy servers, load balancers, and other network appliances often obscure information about the request before it reaches the app: When HTTPS requests are proxied over HTTP, the original scheme (HTTPS . ExternalName this service is mapped to a DNS name. client-certificate and client-key files merged into a PFX file. Kindly try debugging to find out any cause. Select the Skip specific environments You signed in with another tab or window. access to deploy to the Prod environment. Congrats, you completed this very long ASP.NET Core Kubernetes Tutorial which explains how to host your app in Kubernetes by using Pods, Deployments and Services. minikubeip with the IP address of your Minikube cluster) to view a random quote. Enough of the theory part, let the apply it on the system. The cloud provider provisions a load balancer for your Service. Make sure to change the second param of the ENTRYPOINT array to the name of your DLL. Build the Image inside Minikubes Virtual Machine, Notice the Ready column against the deployment and pods. When the deployment succeeds, the notification email will be sent: One of the strengths of Octopus is that it models environments as first-class entities. To exit from the tunnel press ctrl+c on the command prompt and it will close the tunnel and your app will now become in-accessible. manually approve all those deployments. The Journey of an Electromagnetic Wave Exiting a Router. Connect and share knowledge within a single location that is structured and easy to search. Check the deployment config file where I have provided the pods the same label. Implement an action to build the container image for a microservice. Now we expose the deployment as NodePort to it to be accessed. To accommodate this, we do not enable the manual intervention step for Give a name to your app, I named the app as FirstKubeApp, and make sure to check the option that says Place solution and project in the same directory. Notice it has key: value expressions in it. Not really. So I will create a new ASP.NET Core app then create its docker image inside the minikube VM. Now we will explore some of the more advanced features of Octopus that allow us to customize the deployment With labels, we can select an object. This command will show you environment variables created by minikube. Below are more resources Click the Projects link, and click the Random Quotes project tile: Click the Process link, and click CHANGE: Select the Dev, Test, and Prod lifecycle. button: Search for the Manual Intervention Required step, and add it to the process: Enter Deployment Sign Off for the Step Name: Enter the following for the Instructions: Because every build is automatically deployed to the Dev environment, it doesn't make sense to force someone to We are going to need some pre-requisites to complete this project or run it on your local machine. K8S Node Port variable scoped to the Test environment. A dedicated Docker Registry is required when deploying Docker images via Octopus. Were all of the "good" terminators played by Arnold Schwarzenegger completely separate machines? You can see its a basic app with just 2 pages home and privacy. Only specific people can deploy to production. Is there anything we can do to improve it? minikube has a built-in list of applications and services that may be easily deployed, such as Istio or Ingress. Click the Configuration link: Enter Internal Deployer as the Display Name: Enter the user's email address. I think your approach does not fit well with the architecture of Kubernetes. After the cleaning is completed, we can proceed with the following commands. The .NET Core SDK must be installed locally for development and also on the TeamCity server or any agents that will compile the application code. Log into Octopus, and click the Infrastructure link, then the Environments link, and click ADD ENVIRONMENT: Enter Dev as the New environment name, and click SAVE: Repeat the process for the Test and Prod environments: We need to upload two certificates to Octopus in order to connect to the Minikube Kubernetes cluster. Securely store sensitive information that GitHub Actions uses. release, we can go and find the older version of the artifact and re-deploy it. As before, we make use of the Octopus plugin to interact with the Octopus server. We review your answers every month to find ways to improve these docs. Now let us apply this configuration which will create the service in Kubernetes. to be installed in order to interact with the Kubernetes cluster. the default All must complete option selected: Now, we need to switch the deployment project from the Default Lifecycle to the newly created lifecycle. When the TeamCity build completes, the change will be deployed to the, When one of your team members (perhaps a tester) wants to see what's in a particular release, they can use Octopus to manually deploy a release to the, When the team is satisfied with the quality of the release and they are ready for it to go to production, they use Octopus to promote the release from the. it can be progressed to the Prod environment. you can access to learn about the advanced functionality provided by Octopus: permissions required for the Octopus Windows Service, https://github.com/OctopusSamples/RandomQuotes.git. Also note that you will have to create this docker image inside the minikubes VM or you can instruct k8s to download the image from a registry like Docker Hub, Azure Container Registry, Microsoft Container Registry and so on. I also created a service for this deployment. Also yogihosting, thanks for nice tutorials! We have used a dummy address of internaldeployer@example.org here: Enter a password and confirm it. Minikube is a tool that makes it easy to run Kubernetes locally. Typically though, deployments to the Dev We now have a deployment project in Octopus ready to deploy our ASP.NET Core application to our Dev, Test, and Prod environments. which is a Kubernetes distribution that creates a local environment for testing and development. of a button. Notice the . at the end of the build command. Windows users can download a distribution of OpenSSL here. When you run the above command the whole project structure is scaffolded like below. It will open a tunnel and then a new tab is opened on the browser where you you will see your ASP.NET Core app. Visit http://minikubeip:30000 in a browser (replacing Any configuration files will have their default values, but they won't know anything about dev vs. production Next, there is a spec for the Pods and it is given under the template field. When this application is deployed to the Test or Prod environments, a prompt will be displayed requiring manual sign off. From the gateway to the app within the cluster, only HTTP is used, so that app doesn't need any certificate - only the gateway. This is done with a connection defined on the project. Email notifications generated when deployments succeed or fail. Click the Library link, click the Lifecycles link, and click ADD LIFECYCLE: Set the lifecycle name to Dev, Test, and Prod, and the description to Progression from the Dev to the Prod environments: Phases are used to group environments that can accept a deployment. When using , you have to use this command (this is different when using managed k8s): hello-netcore-k8s --url Finally, there is ports field that specifies how the ports of the service will be mapped to that of the container running inside of a Pod. Step 1: Deploy the ASP.NET Core Sample App Get a local version of the ASP.NET Sample App by executing the following commands in your local terminal: $ git clone https://github.com/okteto/aspnetcore-getting-started $ cd aspnetcore-getting-started This certificate contains the contents of both the To trigger the initial deployment to the Dev environment after a successful build, we will go back to the project we created in Overview ASP.NET Core is a new open-source and cross-platform framework for building modern cloud-based and internet-connected applications using the C# programming language.. Kubernetes is an open source project which can run in many different environments, from laptops to high-availability multi-node clusters, from public clouds to on-premise deployments, from virtual machines to bare metal. Environments represent the stages that a deployment must move through as part of the deployment pipeline. I have created images for API and Redis and deployed both of them on 2 different pods. TeamCity detects the change and performs the continuous integration build, this includes resolving any dependencies and running unit tests. Enter web as the Port name and the port exposed by the container as the Port number: Enter appsettings-volume as the Volume name, enter /app/appsettings.json as the Mount path, and appsettings.json for the Sub path. It is a toolthat runs a single-node Kubernetes cluster inside a Virtual Machine (VM) on your computer, either Linux, Windows or Mac. By Chris Ross. I will start with Docker and Minikube then I will take the topic of Kubernetes Objects which are Pods, Deployments and Services. After all, Minikube's main task is to provide orchestration of dockerized samples. TeamCity offers a free tier and can be downloaded from the project's website. Now its your time to deploy your ASP.NET Core app on Kubernetes. By exposing each environment as a unique port, we can implement multiple environments with a single cluster. There are a ton of managed Kubernetes services available today (and for sure even more tomorrow) to run your ASP.NET Core application. Our project currently uses the default lifecycle, which defines a progression through all the environments in the To subscribe to this RSS feed, copy and paste this URL into your RSS reader. A TLS certificate (for https) is coupled to a hostname. This means that initial deployments can be made to the Dev or Test Octopus requires the kubectl command-line tool Let us understand what it is saying. Another solution would have been to push the image to the official Docker hub but we want to stay local for this sample. Then click OK. By using a variable for the node port, we can expose different environments on different ports within the same cluster: Enter randomquotes as the Config Map Name. Note, as always, the advice in this post is based on my experience deploying ASP.NET Core apps using Helm. Now we apply our deployment. When I try to create a tunnel, browser is opened, but it times out. Click the Run Conditions section to expand it. Just a comment to add to MaticDiba: I get the same problem/error following this tutorial. In this case, we use the plugin to create and deploy a release in Octopus after the package has been pushed. If you are creating a deployment than it will remain same for your file to. There was a problem preparing your codespace, please try again. If you look at the above image, after running the deployment we get an error for pods that is "ErrImageNeverPull". Here is an example project you can clone and run it on your machine. "deb http://apt.kubernetes.io/ kubernetes-xenial main". Before starting these operations, I would like to remind you that minikube service must be running. To start, we need to configure an SMTP server to send our emails. The command to expose your application using a nodePort, is this: So, at which IP and Port has it been exposed? Lets dig a bit deeper and check the pods: Looks like we have a problem here. are defined in the certificate-authority, client-certificate, and client-key fields in the ~/.kube/config The appsettings.json sub path references a key in the ConfigMap that we will create in later steps. Im running Windows, not sure if that is the problem.

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