The helm search hub <keyword> command is used to search for charts available in the Helm Hub, which is a centralized repository of Helm charts , keyword can be prometheus, grafana, nginx, postgresql etc. helm search hub <keyword> --max-col-width=0 this command displays the results without column width limitations. #devops #helm #helmhub #kubernetes

Empty a file using the > symbol. Simply typing > filename truncates the file, removing all its previous content. #UnixCommand

chmod 777 <filename> is a command used to set permissions on a file or directory in Unix-like operating systems (including Linux and macOS). It grants full read, write, and execute permissions. #devops #FilePermissions

Kubernetes on Docker Desktop • Install Docker Desktop • Enable Kubernetes from docker-desktop setting • Switch the Kubernetes context to docker-desktop • Example :

❯ kubectl config get-contexts
CURRENT   NAME                      CLUSTER                   AUTHINFO                  NAMESPACE
          docker-desktop            docker-desktop            docker-desktop
*         kind-kube-nginx-cluster   kind-kube-nginx-cluster   kind-kube-nginx-cluster

❯ kubectl config use-context docker-desktop
Switched to context "docker-desktop".

• Instead of using the command kubectl config use-context docker-desktop we can also go with kubectx to switch between Kubernetes context • To install kubectx on Mac: brew install kubectx #devops #kubernetes #dockerdesktop

Access Kubernetes dashboard on minikube To access the dashboard: minikube dashboard This will enable the dashboard add-on, and open the proxy in the default web browser. #devops #kubernetes

Today I learnt , REST API endpoints for organization members • It will List all users who are members of an organization. If the authenticated user is also a member of this organization then both concealed and public members will be returned. • The token must have the following permission set: members:read • Request example:

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  <https://api.github.com/orgs/ORG/members>

Response

[
  {
    "login": "octocat",
    "id": 1,
    "node_id": "MDQ6VXNlcjE=",
    "avatar_url": "<https://github.com/images/error/octocat_happy.gif>",
    "gravatar_id": "",
    "url": "<https://api.github.com/users/octocat>",
    "html_url": "<https://github.com/octocat>",
    "followers_url": "<https://api.github.com/users/octocat/followers>",
    "following_url": "<https://api.github.com/users/octocat/following{/other_user}>",
    "gists_url": "<https://api.github.com/users/octocat/gists{/gist_id}>",
    "starred_url": "<https://api.github.com/users/octocat/starred{/owner}{/repo}>",
    "subscriptions_url": "<https://api.github.com/users/octocat/subscriptions>",
    "organizations_url": "<https://api.github.com/users/octocat/orgs>",
    "repos_url": "<https://api.github.com/users/octocat/repos>",
    "events_url": "<https://api.github.com/users/octocat/events{/privacy}>",
    "received_events_url": "<https://api.github.com/users/octocat/received_events>",
    "type": "User",
    "site_admin": false
  }
]

#githubactionspublic #rest api

We can leverage the AWS Systems Manager service to execute the Ansible scripts on the EC2 hosts, this removes the overhead of maintaining SSH keys and other instance details. How it is done: • Prerequisites: ◦ EC2 instance should have an IAM role attached for SSM ◦ Ansible should be installed on the instance • In the AWS System Manager go to State Manager and create a new association • The association details will include: association name, Document, Ansible playbook, Target selection, schedule, and Rate control • Based on the Association configuration, the playbook will be executed. #automation #awsssm #ansible

Securing Sensitive Data in Kubernetes with Base64 Encoding Today I learned that the base64 command can be used in Kubernetes to encode sensitive data such as passwords and API keys when creating secrets. By encoding the sensitive information in base64 format, it can be safely stored in Kubernetes secrets without exposing it in plaintext. This adds an additional layer of security to the sensitive data used by applications running in Kubernetes clusters. echo -n "some_password" | base64 #devops #kubernetes #encoding

while doing npm install or yarn install we might run into this error mentioned below:

error /Users/<user>/project/node_modules/sharp: Command failed.
Exit code: 127
Command: (node install/libvips && node install/dll-copy && prebuild-install) || (node install/can-compile && node-gyp rebuild && node install/dll-copy)

to fix this just do npm rebuild & then run npm install or yarn install . #sharp-error #npm #node

git stash want to store commit temporarily then , stashing will save your modifications and revert your working directory to its clean state