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Devops Tutorial for Beginners - Learn Docker, Kubernetes, Terraform, Ansible, Jenkins and Azure Devops

Home Page: https://links.in28minutes.com/DevOps-SBT

Python 0.45% Dockerfile 3.15% Java 61.67% JavaScript 0.70% HCL 32.77% Gherkin 1.27%

azure-devops learn-devops kubernetes devops-course

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devops-master-class's Issues

Kubernetes project folder is missing app.jar leading to docker build failure

Docker file mentions entry point to use app.jar. But the app folder is missing the file.
ENTRYPOINT [ "sh", "-c", "java -jar /app.jar" ]

Error seen while building the app is as below:

PS C:\GitHub\devops-master-class\kubernetes\01-hello-world-rest-api> docker build -t ainebula/hello-world-rest-api:0.0.1-RELEASE .
[+] Building 2.6s (7/7) FINISHED
 => [internal] load build definition from Dockerfile                                                                                                                                                                                                                       0.0s
 => => transferring dockerfile: 163B                                                                                                                                                                                                                                       0.0s
 => [internal] load .dockerignore                                                                                                                                                                                                                                          0.0s
 => => transferring context: 2B                                                                                                                                                                                                                                            0.0s
 => [internal] load metadata for docker.io/library/openjdk:8-jdk-alpine                                                                                                                                                                                                    2.5s
 => [auth] library/openjdk:pull token for registry-1.docker.io                                                                                                                                                                                                             0.0s
 => [internal] load build context                                                                                                                                                                                                                                          0.0s
 => => transferring context: 2B                                                                                                                                                                                                                                            0.0s
 => CACHED [1/2] FROM docker.io/library/openjdk:8-jdk-alpine@sha256:94792824df2df33402f201713f932b58cb9de94a0cd524164a0f2283343547b3                                                                                                                                       0.0s
 => ERROR [2/2] ADD target/*.jar app.jar                                                                                                                                                                                                                                   0.0s
------
 > [2/2] ADD target/*.jar app.jar:
------
Dockerfile:4
--------------------
   2 |     VOLUME /tmp
   3 |     EXPOSE 8080
   4 | >>> ADD target/*.jar app.jar
   5 |     ENTRYPOINT [ "sh", "-c", "java -jar /app.jar" ]
--------------------
ERROR: failed to solve: lstat /var/lib/docker/tmp/buildkit-mount4165508193/target: no such file or directory

The presentation.pdf file is not opening

The presentation.pdf file is not opening. Please look into it.

deployment.yaml is missing

https://github.com/in28minutes/devops-master-class/tree/master/projects/microservices/01-currency-exchange-microservice-basic

deployment.yaml file is missing

05-azure-kubernetes-cluster-iaac-pipeline fails on storage account creation

Hi @in28minutes, I'm loving the course, thank you for the content!

I'm on step 149 and having an issue with the creation of the backendAzureRmStorageAccountName, I've copied the content provided to the letter but each time I run the pipeline I see the below errors in the output:

2024-05-30T14:21:43.6289629Z ##[section]Starting: TerraformCLI
2024-05-30T14:21:43.6295767Z ==============================================================================
2024-05-30T14:21:43.6295928Z Task         : Terraform CLI
2024-05-30T14:21:43.6296007Z Description  : Execute terraform cli commands
2024-05-30T14:21:43.6296103Z Version      : 2.1.2
2024-05-30T14:21:43.6296189Z Author       : Charles Zipp
2024-05-30T14:21:43.6296270Z Help         : 
2024-05-30T14:21:43.6296333Z ==============================================================================
2024-05-30T14:21:48.0830792Z [command]/usr/local/bin/terraform version
2024-05-30T14:21:56.4031321Z Terraform v1.8.4
2024-05-30T14:21:56.4032241Z on linux_amd64
2024-05-30T14:21:56.4215356Z [command]/usr/bin/az login --service-principal -t 6b9ca1ab-2493-4d57-ad52-9ac0e86be0f1 -u *** -p ***
2024-05-30T14:22:17.6850138Z [
2024-05-30T14:22:17.6850640Z   {
2024-05-30T14:22:17.6851503Z     "cloudName": "AzureCloud",
2024-05-30T14:22:17.6851998Z     "homeTenantId": "6b9ca1ab-2493-4d57-ad52-9ac0e86be0f1",
2024-05-30T14:22:17.6852379Z     "id": "1694212d-b07d-4db6-9852-7a33c8e2c3fe",
2024-05-30T14:22:17.6852575Z     "isDefault": true,
2024-05-30T14:22:17.6852750Z     "managedByTenants": [],
2024-05-30T14:22:17.6852912Z     "name": "theRealGavlar",
2024-05-30T14:22:17.6853087Z     "state": "Enabled",
2024-05-30T14:22:17.6853367Z     "tenantId": "6b9ca1ab-2493-4d57-ad52-9ac0e86be0f1",
2024-05-30T14:22:17.6853562Z     "user": {
2024-05-30T14:22:17.6853930Z       "name": "***",
2024-05-30T14:22:17.6854105Z       "type": "servicePrincipal"
2024-05-30T14:22:17.6854268Z     }
2024-05-30T14:22:17.6854401Z   }
2024-05-30T14:22:17.6854532Z ]
2024-05-30T14:22:18.0140602Z [command]/usr/bin/az account set -s 1694212d-b07d-4db6-9852-7a33c8e2c3fe
2024-05-30T14:22:18.4689004Z [command]/usr/bin/az group create --name therealgavlar-terraform-backend-resource-group --location westeurope
2024-05-30T14:22:19.7626501Z {
2024-05-30T14:22:19.7627191Z   "id": "/subscriptions/1694212d-b07d-4db6-9852-7a33c8e2c3fe/resourceGroups/therealgavlar-terraform-backend-resource-group",
2024-05-30T14:22:19.7627685Z   "location": "westeurope",
2024-05-30T14:22:19.7627887Z   "managedBy": null,
2024-05-30T14:22:19.7628279Z   "name": "therealgavlar-terraform-backend-resource-group",
2024-05-30T14:22:19.7628574Z   "properties": {
2024-05-30T14:22:19.7628775Z     "provisioningState": "Succeeded"
2024-05-30T14:22:19.7628945Z   },
2024-05-30T14:22:19.7629079Z   "tags": null,
2024-05-30T14:22:19.7629359Z   "type": "Microsoft.Resources/resourceGroups"
2024-05-30T14:22:19.7629628Z }
2024-05-30T14:22:19.8521479Z [command]/usr/bin/az storage account show --name trgavlar-storage-account --resource-group therealgavlar-terraform-backend-resource-group
2024-05-30T14:22:23.1054402Z ERROR: (ResourceNotFound) The Resource 'Microsoft.Storage/storageAccounts/trgavlar-storage-account' under resource group 'therealgavlar-terraform-backend-resource-group' was not found. For more details please go to https://aka.ms/ARMResourceNotFoundFix
2024-05-30T14:22:23.1055183Z Code: ResourceNotFound
2024-05-30T14:22:23.1056478Z Message: The Resource 'Microsoft.Storage/storageAccounts/trgavlar-storage-account' under resource group 'therealgavlar-terraform-backend-resource-group' was not found. For more details please go to https://aka.ms/ARMResourceNotFoundFix
2024-05-30T14:22:23.3113338Z ##[error]Error: ERROR: (ResourceNotFound) The Resource 'Microsoft.Storage/storageAccounts/trgavlar-storage-account' under resource group 'therealgavlar-terraform-backend-resource-group' was not found. For more details please go to https://aka.ms/ARMResourceNotFoundFix
Code: ResourceNotFound
Message: The Resource 'Microsoft.Storage/storageAccounts/trgavlar-storage-account' under resource group 'therealgavlar-terraform-backend-resource-group' was not found. For more details please go to https://aka.ms/ARMResourceNotFoundFix

2024-05-30T14:22:23.3122848Z az storage account create: storage account not found, creating...
2024-05-30T14:22:23.3135853Z [command]/usr/bin/az storage account create --name trgavlar-storage-account --resource-group therealgavlar-terraform-backend-resource-group --sku Standard_RAGRS --kind StorageV2 --encryption-services blob --access-tier hot --allow-blob-public-access false --https-only true --min-tls-version TLS1_2
2024-05-30T14:22:24.4779455Z ERROR: (SubscriptionNotFound) Subscription 1694212d-b07d-4db6-9852-7a33c8e2c3fe was not found.
2024-05-30T14:22:24.4780340Z Code: SubscriptionNotFound
2024-05-30T14:22:24.4782232Z Message: Subscription 1694212d-b07d-4db6-9852-7a33c8e2c3fe was not found.
2024-05-30T14:22:24.6957708Z ##[error]Error: ERROR: (SubscriptionNotFound) Subscription 1694212d-b07d-4db6-9852-7a33c8e2c3fe was not found.
Code: SubscriptionNotFound
Message: Subscription 1694212d-b07d-4db6-9852-7a33c8e2c3fe was not found.

2024-05-30T14:22:24.7020345Z [command]/usr/bin/az storage container create --auth-mode login --name therealgavlarstorageaccountcontainer --account-name trgavlar-storage-account
2024-05-30T14:23:51.7991590Z ERROR: <urllib3.connection.HTTPSConnection object at 0x7f6c52261090>: Failed to establish a new connection: [Errno -2] Name or service not known
2024-05-30T14:23:52.0178165Z ##[error]Error: ERROR: <urllib3.connection.HTTPSConnection object at 0x7f6c52261090>: Failed to establish a new connection: [Errno -2] Name or service not known

2024-05-30T14:23:52.0192729Z [command]/usr/local/bin/terraform init -backend-config=storage_account_name=trgavlar-storage-account -backend-config=container_name=therealgavlarstorageaccountcontainer -backend-config=key=kubernetes-dev.tfstate -backend-config=resource_group_name=therealgavlar-terraform-backend-resource-group -backend-config=subscription_id=1694212d-b07d-4db6-9852-7a33c8e2c3fe -backend-config=tenant_id=6b9ca1ab-2493-4d57-ad52-9ac0e86be0f1 -backend-config=client_id=*** -backend-config=client_secret=***
2024-05-30T14:23:52.2917317Z 
2024-05-30T14:23:52.2918723Z �[0m�[1mInitializing the backend...�[0m
2024-05-30T14:23:52.9541814Z �[31m�[31m╷�[0m�[0m
2024-05-30T14:23:52.9543698Z �[31m│�[0m �[0m�[1m�[31mError: �[0m�[0m�[1mFailed to get existing workspaces: Error retrieving keys for Storage Account "trgavlar-storage-account": storage.AccountsClient#ListKeys: Failure responding to request: StatusCode=404 -- Original Error: autorest/azure: Service returned an error. Status=404 Code="ResourceNotFound" Message="The Resource 'Microsoft.Storage/storageAccounts/trgavlar-storage-account' under resource group 'therealgavlar-terraform-backend-resource-group' was not found. For more details please go to https://aka.ms/ARMResourceNotFoundFix"�[0m
2024-05-30T14:23:52.9592722Z �[31m│�[0m �[0m
2024-05-30T14:23:52.9601204Z �[31m│�[0m �[0m�[0m
2024-05-30T14:23:52.9601448Z �[31m╵�[0m�[0m
2024-05-30T14:23:52.9601629Z �[0m�[0m
2024-05-30T14:23:52.9609241Z ##[error]Terraform command 'init' failed with exit code '1'.
2024-05-30T14:23:52.9627948Z ##[error]�[31m�[31m╷�[0m�[0m
�[31m│�[0m �[0m�[1m�[31mError: �[0m�[0m�[1mFailed to get existing workspaces: Error retrieving keys for Storage Account "trgavlar-storage-account": storage.AccountsClient#ListKeys: Failure responding to request: StatusCode=404 -- Original Error: autorest/azure: Service returned an error. Status=404 Code="ResourceNotFound" Message="The Resource 'Microsoft.Storage/storageAccounts/trgavlar-storage-account' under resource group 'therealgavlar-terraform-backend-resource-group' was not found. For more details please go to https://aka.ms/ARMResourceNotFoundFix"�[0m
�[31m│�[0m �[0m
�[31m│�[0m �[0m�[0m
�[31m╵�[0m�[0m
�[0m�[0m

2024-05-30T14:23:52.9672574Z ##[section]Finishing: TerraformCLI

I'm not entirely sure what's going wrong as the resource group is created, it's only when the storage account attempts to be created the pipeline fails.

I'm using a free tier Azure account so I'm wondering if that could be the issue?

Please see my pipeline below for reference:

trigger:
- main

pool:
  vmImage: ubuntu-latest

steps:
- script: echo k8s terraform azure
  displayName: 'Run a one-line script'

- task: DownloadSecureFile@1
  name: publicKey
  inputs:
    secureFile: 'azure_rsa.pub'

- task: TerraformCLI@2
  inputs:
    command: 'init'
    workingDirectory: '$(System.DefaultWorkingDirectory)/configuration/iaac/azure/kubernetes'
    backendType: 'azurerm'
    backendServiceArm: 'therealgavlar-azure-resource-manager'
    ensureBackend: true
    backendAzureRmResourceGroupName: 'therealgavlar-terraform-backend-resource-group'
    backendAzureRmResourceGroupLocation: 'westeurope'
    backendAzureRmStorageAccountName: 'trgavlar-storage-account'
    backendAzureRmContainerName: 'therealgavlarstorageaccountcontainer'
    backendAzureRmKey: 'kubernetes-dev.tfstate'
    allowTelemetryCollection: false

- task: TerraformCLI@2
  inputs:
    command: 'apply'
    workingDirectory: '$(System.DefaultWorkingDirectory)/configuration/iaac/azure/kubernetes'
    environmentServiceName: 'therealgavlar-azure-resource-manager'
    commandOptions: '-var client_id=$(client_id) -var client_secret=$(client_secret) -var ssh_public_key=$(publicKey.secureFilePath)'
    allowTelemetryCollection: false

I look forward to your response!

Many thanks,
Gavin

Jenkins configuration after running blue-ocean docker image

Please provide the commands to start jenkins on windows as server showing Offline

Offline
This Jenkins instance appears to be offline.

Kubectl diff command fails on windows

Issue as seen on Windows when trying the kubectl diff command

C:\GitHub\devops-master-class\kubernetes\01-hello-world-rest-api>kubectl  diff -f deployment1.yaml
error: failed to run "diff": executable file not found in %PATH%

Find solution in comments.

Unable to perform Python code in VS code

We are getting pop up notification regarding flask, unable to perform all steps (4of6), instead of 6 steps we have performed only 4 steps.
Attached snapshot which we are getting error. could you please suggest on this issue. Any software extensions required to run this?

Error creating pipeline 05 azure-devops-kubernetes-terrraform

Hi! Can you please help me?
I am getting this error while trying to replicate what you do in the video

Error: Error building AzureRM Client: Authenticating using the Azure CLI is only supported as a User (not a Service Principal).

To authenticate to Azure using a Service Principal, you can use the separate 'Authenticate using a Service Principal'
auth method - instructions for which can be found here: https://www.terraform.io/docs/providers/azurerm/guides/service_principal_client_secret.html

Alternatively you can authenticate using the Azure CLI by using a User Account.

on main.tf line 6, in provider "azurerm":
6: provider "azurerm" {

Releasing state lock. This may take a few moments...

Hope you can help me!
Looking forward to your response!
Best regards!

Issues while running java application image

When I run this java application provided by you with the command- docker run -p 5000:5000 in28min/hello-world-java:0.0.1.RELEASE

And also when i try to run the rest api by - docker run -d -p 5001:8080 in28min/hello-world-rest-api:0.0.1.RELEASE

For the other python and nodejs application they are running fine.

Container do get up and running but when i go to check the localhost port to check the application, I don't anything there.

Do I need some other dependencies to install like apache tomcat or anything else.?

I am using Macbook pro M1 chip.

Please help ..!!

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