Viewed 714 times -1 Is it possible to create and k8s secret from a file in ansible? Now you can see Multi-Cloud k8s Cluster is Ready. After more than 2 years of experience in Kubernetes cluster administration, I am deeply convinced that one of the most important things to have as an ops guy is a sandbox cluster at your disposal. Third: In this blog, I will show how to write code to provision Storage Class, Persistent Volume, Persistent Volume Claim, Deployment, Service, Secret, etc. $ ansible-vault decrypt secrets_file.enc Vault password: Decryption successful # Notice that the file has been decrypted $ cat secrets . on Kubernetes & then we will run them using Ansible Role. $ kubectl apply -f secret-name.yaml. For seprate clusters you need to save the secret to file. Use the kubernetes.core.k8s_info module to obtain a list of items about an object of type kind. Mutually exclusive with secret_file_path and secret_value options. The sample playbook code in this section is used to: Create a virtual network Feature list: Support Kubernetes v1.19.0+. In the file master-playbook.yml, add the code below.. Great, we have now learnt how to simply get a secret from the command line but what about integrations with Kubernetes, Ansible, etc? Create a directory named kubernetes-setup in the same directory as the Vagrantfile.Create two files named master-playbook.yml and node-playbook.yml in the directory kubernetes-setup.. It is highly recommended to store sensitive information such as password, user certificates in a more secure fashion using ansible-vault or using Ansible Tower credentials. e.g. Step 5: Create a policy file named aws.hcl with the following content: path "kv/data/aws_credentials" {capabilities = ["read"]} Now create this policy using vault policy write aws aws.hcl command. Synopsis . Creating the cluster Kubernetes provides a builtin Secret type kubernetes.io/tls for storing a certificate and its associated key that are typically used for TLS . Tagged with kubernetes, mysql, ansible, devops. While there is no example on how to create a secret, there are examples which show how Kubernetes definitions can be used. For Kubernetes Cluster. Review the README.MD file for additional information on how to customize the script for you. How to Install Minikube on Ubuntu 20.04 LTS / 21.04; Note: Make sure you start your minikube cluster with enough resources (at least 4 vCPU and 8 GB RAM) , in my case I have started minikube with following resources and options. This playbook will create 3 instances, one master and two slaves and will also tag them. create a secrete file secret.yml which will contain the password of the MySQL database-apiVersion: v1 kind: Secret metadata: name: Suraj data: password: Mysqlpass@2001 . Here are some steps repeated so, I am skipping to the sixth step. <div class="navbar header-navbar"> <div class="container"> <div class="navbar-brand"> <a href="/" id="ember34" class="navbar-brand-link active ember-view"> <span id . I recommend you put it in ~/.aws/credentials and it should look like this: [default] aws_access_key_id = AAABBBBCCCDDDEEEFFF aws_secret_access_key = ABC123456%$^&*WWWMMMCCC33658 Exit fullscreen mode. Here I'm going to launch 3 EC2 Instances. Created three Ansible Roles. We are going to build a highly available Kubernetes homelab cluster with three control plane nodes and three worker nodes using Ansible. One for master node of kubernetes and one for slave or worker node of kubernetes. Ansible create kubernetes secret from file. Also, I will show how to write Ansible Role to setup NFS server on EC2 Instance. kube_resource_manifest_files - a list of resource definition template file names. Basic knowledge of AWS EC2 instance, Ansible Role & Kubernetes Multi-Node Cluster. For Kubernetes Master. Required: true. To create the account using Azure CLI and run the following command. Let's simplify our lives more. Such an approach would give an ability to create all necessary applications when creating a new ArgoCD instance. This data is primarily used with TLS termination of the Ingress resource, but may be used with other resources or directly by a workload. Go inside this workspace & create one folder called . Configure AWS credential - this is needed for dynamic inventory 5. The kubectl tool has part of a solution for that, in that you can pass --append-hash when creating a configmap or secret, but only when using kubectl create, it's not useful when applying resource definitions from files. Currently, I am doing it like this but it only works on the first run because if I run the playbook again it says the secret already exists . The Overflow Blog The Overflow #112: Psychological safety for high-performing teams STEP 1: RUN setup.yml file for configuring. cd /roles. To provision EC2, create a role named provisionEC2. Ansible configuration file namely ansible.cfg. Use kubelet, and the imagePullSecrets field. create a secrete file secret.yml which will contain the password of the MySQL database-apiVersion: v1 kind: Secret metadata: name: Suraj data: password: Mysqlpass@2001 . Prerequisites. After you create a resource with kops, you must use "edit" command to update resource or you have to create its yaml and update it after changing the yaml file. Adds to the metadata of new secrets 'ansible_key', an encrypted hash representation of the data, which is then used in future runs to test if a secret has changed. Create fact directory. $ kubectl get secret <secret-name> --export -o yaml > secret-name.yaml. Go inside your roles workspace. Part 1 compares existing technologies and discusses their strengths and weaknesses. e.g. Kubernetes allows creating a ConfigMap from one or multiple files in any plaintext format (as long as the files contain key-value pairs). Three Debian/Ubuntu based virtual machines . It is recommended to run this tutorial on a cluster with at least two nodes that are not acting as control plane hosts. $ minikube start --addons=ingress --cpus=4 --cni=flannel --install-addons=true --kubernetes-version=stable --memory=8g What is Kubernetes (k8s) Kubernetes is a portable, extensible, open-source platform for managing containerized workloads and services, that facilitates both declarative configuration and automation. Disclaimer Ansible playbooks are based on the Kubernetes homelab deployment that has been covered in this article. Virtual Machine with Ansible version 2.10.4 installed. Supported versions. See examples for reading files and using Jinja templates or vault-encrypted files. So let's start Configuration: Create a workspace that will contain.. Inventory file namely hosts. Creating fact directory: Creating fact directory in worker node. Installation of Ansible AWX is simple and pretty straightforward with latest version. Part 2:- Ansible play for Kubernetes application. This can be either a sleeping cluster or a new fresh installation with all your standards replicated on it to perform your series of tests. Install and configure Ansible on a Linux virtual machine . kubernates-ansible-aws Steps to run this repo 1.Install the pre-requistes 2. setup python virual env and activate it 3 Install requirements 4. Import the secret as an environment variable to a container. AWX will be installed using AWX Operator on . Once the instances are created it will dynamically retrieve the IP of these instances and put it in ip.txt file, from where it is read by ansible.cfg file to do the further configuration of k8s. This step eliminates the need for you to type your password every time you edit an Ansible Vault: vault_password_file = ~/.ansible_vault. The playbook code in this section creates the following Azure resources . K3s is an excellent batteries included Kubernetes distribution that is easy to setup and operate. The Overflow Blog The Overflow #112: Psychological safety for high-performing teams Provisioning of a Standalone Kubernetes Cluster, , , Configure network connectivity to Contrail configuration and data plane functions., Generate a single yaml file to create a Contrail-k8s cluster, Instantiate the Contrail-k8s cluster, Provisioning of Non-Nested Contrail Kubernetes Clusters Re-gathering the updated facts. kube_resource_manifest_files - a list of resource definition template file names. 1. Kubernetes, also known as K8s, is an open-source system for automating deployment, scaling, and managing containerized applications. Step 2: Create an Ansible playbook for Kubernetes master. ansible-galaxy role init cluster ansible-galaxy role init k8s-master ansible-galaxy role init k8s-worker. microk8s is a lightweight Kubernetes deployment by Canonical that is enterprise-grade, yet also compact enough to run on development boxes and edge devices.. Highly available development Kubernetes cluster. Pass the object definition from a source file or inline. You can choose . AWX; Ansible; Kubernetes; Vagrant But there is not a corresponding 'apply' or 'update' that can be run if you tweaked the file and wanted to update the ConfigMap. Step 7 : Create task for k8s_master : Step 8 : Create vars file : Step 9 : Create task for Kubernetes_worker_node : Step 10 : Create vars files for k8s_worker_node : Step 11 : Create setup.yml file for merging role : "vim setup.yml". kube_resource_validate - configuration for the validation argument of the k8s module. 3. However, this idea was the inspiration to add an append_hash parameter to Ansible's k8s module, and this is part of the solution. AWS account; Let's start running the commands & writing the codes Creating three Ansible Roles : Create one workspace, let's say "aws-ansible". This integration enables the management of Kubernetes environments using Ansible modules. ; But I will skip those things, that I discussed on my previous blog. USE-CASE Create Ansible Playbook to launch 3 AWS EC2 Instance Create Ansible Playbook to. Create the secret. Include all the tasks from the playbooks we created earlier in the respective tasks/main.yml file. This tutorial is the third part of a series where I evaluate the challenge of deploying complex application systems on a Kubernetes cluster. The Ansible engine is self-contained and pre-configured as part of this pack onto your XSOAR server, all you need to do is provide credentials you are ready to use the feature rich commands. Kubernetes services, support, and tools are widely available. In the last command, provide role-id and secret-id which we fetched earlier. Step 1:- Create .yml file for Pod definition In the below code, I have used dhsoni-web image i.e my portfolio website's image. Copy fact file from local to worker. . Using definition parameter of the kubernetes.core.k8s module, you specify PodTemplate. However, this can be achieved by using "-dry-run" and "kubectl replace . Create and remove Docker secrets in a Swarm environment. Create a secret named secret-tls using the create secret command and this secret data can be exposed to Pods using the secrets volume type: [root@controller ~]# kubectl create secret generic secret-tls --from-file= server.crt--from-file= server.key secret/secret-tls created If you have a directory that contains your . The collection contains the following information on this deprecation: The community.kubernetes collection is being renamed to kubernetes.core. For example, Kubernetes can easily manage a canary deployment for your system. It takes care of scaling and failover for your application, provides deployment patterns, and more. Kubernetes Operator with Ansible structure and files Now that we have our Operator skeleton, let's take a look at some of the main files used when deploying Operators in general, as well as what the Ansible Operator type generated specifically. Note the key of id_rsa for the secret dataI used this because when you mount a secret into a volume, the mount point will be a directory, and each file in that directory corresponds to a key in the Secret's data.So in this case, if I set a mount path of /var/my-app, then Kubernetes would place a file in there named id_rsa, with the value from the Secret. As an example, here are the commands for the creation of a simple ConfigMap using a file named " ConfigMap-test1.yaml ". As we know containers are a good way to bundle and run . kube_resource_secrets_files - a list of Secret definition template file names. That's how Kubernetes comes to the rescue! Step 6: Enable approle authentication method and create a role. ; Install Ansible: Do one of the following options:. Then finally will start configuring kubernetes cluster with playbook which will run two roles. This page shows how to enable and configure encryption of secret data at rest. Kubernetes Ansible AWS EC2 . Browse other questions tagged ansible kubernetes or ask your own question. Check ansible hosts list : "ansible all list-hosts". Run setup.yml file. USE-CASE Create Ansible Playbook to launch 3 AWS EC2 Instance Create Ansible Playbook to. Browse other questions tagged ansible kubernetes or ask your own question. Kubernetes: a common language. role: worker. With ansible we have two possibilities: Use the vault API together with the uri module; Use any of the community modules supporting Vault; Ansible URI One of the biggest challenges is storing and giving these Mount the secret as a file in a volume available to any number of containers in a pod. - name: Creating fact directory file: path: /etc/ansible/facts.d . Creating from txt files. In order to create secrets from a text file such as user name and password, we first need to store them in a txt file and use the following command. Useful for setting environment variables or specifying the entire contents of one or more files for a Pod; Secretsimilar to ConfigMap but better protected from casual view; Kubernetes resource definitions. You will need to have your AWS access_key and secret_key available. It will be removed in version 3.0.0 of community.kubernetes. Resource definitions are in YAML form Access to the full range of K8s APIs. Let's get into them. In this installation, the default traefik ingress controller will be disabled and nginx ingress controller will be installed and activated instead.. What You'll Need to follow along. Create a virtual network and subnet. View code. Part 2 describes the conceptual approach to using Ansible as a Kubernetes resource orchestrator. 1. Install Ansible: Do one of the following options: Install and configure Ansible on a Linux virtual machine; Configure Azure Cloud Shell and - if you don't have access to a Linux virtual machine - create a virtual machine with Ansible. There are multiple ways of creating secrets in Kubernetes. This file specifies Ansible dependencies that must be installed for your Operator to function. In this tutorial, you put the concept in practice by deploying two . Create a separate workspace to start with our project. Out of 3 Instances , 1 will work as Kubernetes Master and the Other 2 will be our Slave/Worker Nodes. answers Stack Overflow for Teams Where developers technologists share private knowledge with coworkers Jobs Programming related technical career opportunities Talent Recruit tech talent build your employer brand Advertising Reach developers technologists worldwide About the company Log Sign. It has a large, rapidly growing ecosystem. Tagged with kubernetes, mysql, ansible, devops. This redirect does not work with Ansible 2.9. To do this, create a ~/.cloudstack.ini file with your credentials and Exoscale endpoint: [cloudstack] endpoint = https://api.exoscale.ch/compute key = <your api access key> secret = <your api secret key> method = post You should now be all set and ready to get the Ansible playbook that will do all the work for you. Copy your certificate to where the kubectl is configured for this Kubernetes cluster. kube_resource_secrets_files - a list of Secret definition template file names. Step 2.1: Install Docker and its dependent components. Ansible. . Enter fullscreen mode. STEP 2: Login into the AWS Kubernetes master node and run the command that is given below. To create a ConfigMap from a file, use the command: kubectl create configmap [configmap_name] --from-file [path/to/file] To create a ConfigMap from multiple files, run: Azure subscription: If you don't have an Azure subscription, create a free account before you begin. Technology. Option 2: Create ConfigMap From Files. The following sections explain how to create Kubernetes secrets, as well as how to decode and access them. Step 2: Create an . One for Launching AWS EC2-instance, the Second for Configuring Kubernetes Master Node, and the third one is for Configuring Kubernetes Slave Node..

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