CLI

If you get the following error when trying to run a Docker container: Cannot connect to the Docker daemon at unix:/var/run/docker.sock. Is the docker daemon running? Then you can resolve it by running the following: systemctl start docker If this doesn’t work because of a root user issue, then you can do the following first: gpasswd -a $USER docker Additional issues? Issue 1 If you have tried the above, and get this error:...

If you get the following error when trying to run a Docker container that was built on an M1 mac: M1 docker preview and keycloak 'image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8)' Issue The solution Then you can do simply add the following argument to your docker build command. --platform linux/amd64 Where this goes docker build --platform linux/amd64 -t your_docker_item .

If you would like to list all AWS Lambda Function Names in your CLI using the AWS CLI, then you can do this: Get a List of all Lambda Functions aws lambda list-functions However, note that this will return a potentially large JSON payload back to your CLI. So what if you only want a list of the function names themselves? You can couple the AWS command above, with the jq command as follows:...

If you need to install AWS SAM CLI on a Mac, then the easiest option is to use Homebrew with the following commands: brew tap aws/tap brew install aws-sam-cli Now you can validate the installation as follows: sam --version

Option 1 – Using AWS CLI Step 1 export bucketname='your-bucket-here' Step 2 aws s3api delete-objects --bucket $bucketname --delete "$(aws s3api list-object-versions --bucket $bucketname --output=json --query='{Objects: *[].{Key:Key,VersionId:VersionId}}')"; Step 3 aws s3 rb s3://$bucketname Option 2 – Using Python #!/usr/bin/env python BUCKET = 'your-bucket-here' import boto3 s3 = boto3.resource('s3') bucket = s3.Bucket(BUCKET) bucket.object_versions.delete() bucket.delete()

If you need to execute a shell script in NodeJS, then you can use the exec keyword. Syntax: exec(command [, options] [, callback] const shell = require('shelljs') shell.exec("npm --version")

If you need to delete all resources created by Terraform, except for a single, specific one, then you can do the following: Step 1 – Get the current state list terraform state list Step 2 – Remove the exception resource Remove the specific resource that you don’t want Terraform to track anymore. terraform state rm <resource_to_be_removed> Step 3 – Destroy the resources terraform destroy

If you need to copy files between two (2) nodes, using Ansible, then you can do the following: This solution uses the synchronize module, specifically using the delegate_to:source-server keywords. - hosts: serverB tasks: - name: Copy Remote-To-Remote (from serverA to serverB) synchronize: src=/copy/from_serverA dest=/copy/to_serverB delegate_to: serverA

If you need to delete files and folders in a directory using Ansible, then you can do the following: - name: Delete content & entire directory file: state: absent path: /some/directory/path/

If you need to copy multiple files using Ansible, then you can do the following: How to Copy Multiple Files with Ansible Look into using the with_fileglob loop as follows: - copy: src: "{{ item }}" dest: /etc/fooapp/ owner: root mode: 600 with_fileglob: - /playbooks/files/fooapp/* If you would like to do it as a task, then this could help: - name: Your copy task copy: src={{ item.src }} dest={{ item.dest }} with_items: - { src: 'another_file', dest: '/etc/somewhere' } - { src: 'dynamic', dest: '{{ var_path }}' } # repeat for additional files