puppet cook book

http://www.puppetcookbook.com/

test in python for devops

Web application

Write a web application to accept the following and create, delete or modify a user with the same on a linux machine:

    1. username

    2. Shell type

    3. Home folder

    4. Password 

    5. Grant sudo privileges to the user or not.

    6. Select between create, delete and modify.

The application has to be written in Python using the flask web framework. The application will need to run as a specified user (The user will have sudo privileges). The application will need to validate the input, verify that the username provided can indeed be created, and go ahead with the specified operation that has been input.

 

Shell script

 

Given a file of the form (you can use /etc/passwd):

root:x:0:0:root:/root:/bin/bash

daemon:x:1:1:daemon:/usr/sbin:/bin/sh

bin:x:2:2:bin:/bin:/bin/sh

sys:x:3:3:sys:/dev:/bin/sh

sync:x:4:65534:sync:/bin:/bin/sync

games:x:5:60:games:/usr/games:/bin/sh

man:x:6:12:man:/var/cache/man:/bin/sh

lp:x:7:7:lp:/var/spool/lpd:/bin/sh

mail:x:8:8:mail:/var/mail:/bin/sh

news:x:9:9:news:/var/spool/news:/bin/sh

Write a bash 4.0 shell script that does not use any external commands that will sum the third field, delimited by ':'. Your script should take the name of the file to process as the first command line argument.

powershell

Powershell


ls , cd .. , mkdir folder , get-host


upgrade windos management framework 4.0


ls and dir is alias for get-childitem 
its a cmdlet


 


the cmdlet is always has verb-singularnoun


get-service


get-process  or ps


get-command  will list all the
command of cmdlet


 


To list all the builtin aliases


get-alias


 


copy one folder to another :


copy-item  C:\test1  C:\test2 –recurse


copy-item C:\test1,'C:\program files' C:\tset2


 


To get all the options for help for each cmdlet


Get-help copy-item   ( it may ask you
to update the help )


(  Update-help   -> to update your  help file )


Get-help  copy-item   –full


 


Suppose you want to search for a specific  command 
 ( in linux we use grep)


Get-command "services"


Get-command –Name *service*    à will give you only services .

behat - imp links

https://blog.testingbot.com/2012/02/10/selenium-testing-with-mink-and-behat
https://knpuniversity.com/screencast/behat/install
http://www.agix.com.au/install-composer-on-centosredhat/
http://stackoverflow.com/questions/23682229/set-up-selenium2-mink-extension-on-behat-to-use-more-than-one-browser
http://lin-clark.com/blog/2013/11/26/quickstart-testing-with-behat-mink-selenium/
https://github.com/Behat/MinkExtension-example
https://github.com/alnutile/behat_editor/blob/master/behat_features/full_test.feature

http://behat-drupal-extension.readthedocs.org/en/3.1/drush.html
http://mink.behat.org/en/latest/guides/interacting-with-pages.html
http://docs.behat.org/en/v2.5/cookbook/behat_and_mink.html
http://knplabs.com/en/blog/behat-like-a-boss-wirting-custom-steps

nginx links

===================== Nginx =======================

http://www.cyberciti.biz/faq/category/nginx/

http://tutorials.jenkov.com/nginx/index.html

https://www.linode.com/docs/websites/nginx/how-to-configure-nginx

https://www.howtoforge.com/tutorials/nginx/

http://code.tutsplus.com/tutorials/working-with-nginx--cms-23764

http://blog.metrink.com/httpd-vs-nginx-vs-haproxy/

https://www.nginx.com/products/feature-matrix/

https://kyup.com/tutorials/install-nginx/

ansible links

============== ansible links  =====================

https://serversforhackers.com/an-ansible-tutorial

https://adamcod.es/2014/09/23/vagrant-ansible-quickstart-tutorial.html

https://www.digitalocean.com/community/tutorials/how-to-create-ansible-playbooks-to-automate-system-configuration-on-ubuntu

https://github.com/leucos/ansible-tuto

https://www.codereviewvideos.com/course/ansible-tutorial

https://www.linode.com/docs/applications/ansible/getting-started-with-ansible

https://www.nginx.com/blog/installing-nginx-nginx-plus-ansible/#gs.bGBI3T8

http://blog.dhananjaynene.com/2013/10/hands-on-ansible-tutorial/

http://www.cyberciti.biz/python-tutorials/linux-tutorial-install-ansible-configuration-management-and-it-automation-tool/

http://tomoconnor.eu/blogish/getting-started-ansible/#.VlVl7bcrLcs

https://www.youtube.com/watch?v=w8fOEEMqpOw

https://sysadmincasts.com/episodes/

http://blog.flux7.com/

http://www.stavros.io/posts/example-provisioning-and-deployment-ansible/

cloud tutorial

http://clouderify.com/category/google-cloud-platform/

devops tool need to look into

dashboards 

https://razorflow.com/tour/

https://github.com/capitalone/Hygieia

What Makes a DevOps

 Solid Linux/Unix administration skills.

 Strong Puppet or Chef experience (either for Configuration Management 

and/or Continuous Delivery) 

and

  how on repository systems such as Git and SVN are a must.

 Can understand the developer needs and propose a Continuous Integrationplan and implement 

CI tools (Jenkins, TeamCity, Bamboo).

 Can understand the infrastructure needs and design a Continuous Deliveryplan.

 Can understand the management needs and create a Release Management plan.

 Can easily setup application stacks (LAMP, LEMP).

 Can easily setup application server stacks (Tomcat, Webshpere, JBoss).

 Can easily integrate applications with services (ActiveMQ, Redis, Memcache).

 Know how and when to scale horizontally & vertically.

 Can work on different caching levels through modern applications (Varnish, Terracotta EHCache, 

Memcache).

 Understand the need of DRPs, backup strategies and security audits.

DevOps

Devops 

• Infrastructure: Amazon Web Services, VMware, RackSpace, Microsoft Azure, KVM, Heroku, Amazon OpsWorks, Amazon ElasticBeanstalk, Docker, Vagrant
• Web / Application Architecture / Site Performance / Load Balancing: Apache, NGINX, JBoss, Apache Tomcat, Rails, Node.js, DJango, PHP, Amazon CloudFront, Akamai, Amazon AutoScaling, Varnish Software, Memcached, Redis, Amazon ElastiCache, Red Hat Cluster Suite, F5 LTM (Local Traffic Manager) & GTM (Global Traffic Manager), Amazon Elastic Load Balancer, HAProxy
• Authentication, Authorization, and Access Control OpenLDAP:RSA Authentication, Radius Authentication, MFA (Multi-Factor Authentication)/Google Authenticator, Centrify/Powerbroker, SAML, OAuth
• Environment Build and Deployment: Packer, PXE, Foreman, Red Hat Kickstart, Spacewalk, RedHat Satellite Service, Mrepo, Pulp
• Orchestration / Service Discovery: Consul, Registrator, Consul Template, Shipyard, CloudFormation, Terraform
• Configuration Management / Automation: Puppet, Chef, SaltStack, Ansible, Beaker, TestKitchen, ServerSpec, Berkshelf, r10k
• Big Data Operations: Apache Hadoop, Cloudera, MapR, Hortonworks, Kafka, Storm, Oozie, Sqoop, Pig

• Operational Visibility (Service Health Monitoring, Capacity Planning, and Reporting): Elasticsearch, Logstash, Kibana, Splunk, Graphite, Grafana, Cacti, SNMP, Diamond, CollectD, NRPE, Nagios, Sensu, CloudWatch
• Release Management: GIT, SVN, Stash, GitLab, GitHub, BitBucket, Docker Registry Hub / Private Registry, Jenkins, Bamboo, TravisCI
• Message Queuing: RabbitMQ, ZeroMQ, ActiveMQ, Amazon SQS,
• Storage: NFS File Server, iSCSI, Fiber Channel, NAS / SAN, Netapp, 3par, EMC, Multipath / MPIO, device-mapper, PowerPath
• Security: Host based Firewalls (Iptables), SSL VPN (OpenVPN), IPSEC VPN (OpenSwan, LibraSwan), Amazon VPC, IAM, Security Groups & ACLs, SELinux, Auditing and hardening Linux servers
• ITIL Service Operations (Incident, Problem, and Event Management): Design and implement change control solutions, Design and implement disaster recovery solutions, Design and implement business continuity solutions, Root-cause analysis investigation, Linux Kernel performance troubleshooting and tuning, Application performance troubleshooting and tuning
• Backup and Recovery: Tivoli – TSM, HP DataProtector, Bacula, NetBackup, BackupExec, Rsync-based solutions