todays ansible

Author: piyushagarwal08

Diff for: DAY29.md

@@ -67,6 +67,7 @@
 
 ## Lemmatization
   * it creates a meaningful word from a collection of words
+  * Used for sentimental analysis
 
 ## Task
   * Take picture of a newspaper and extract text + apply nltk + remove stop words and plot top 10 frequency graph(cv2 + )

Diff for: DAY30.md

@@ -1 +1,40 @@
 # DAY 30
+
+## Notes:
+  * Use Dialogflow to make chatbots
+  * Rasa can be used for chatbot as well
+  * Watson can also be used(developed by IBM)
+
+
+## Lematization
+  ### Spacy
+    * needs  data of NLTK that is nlp_data
+    * it can be used to find all kind of pronoun,noun,verb,determiners etc
+
+
+## Sentimental Analysis using NLP
+  * remove all stopwords
+  [DATA] - > [Tokenize] - > [Remove Stopwords] - > [find Lemma] - > [find polarity]
+  * polarity varies from -1 to +1
+  * this can be done using Text Blob module
+
+## API
+  * 4 famous API's are :
+    1. Facebook
+    2. Linkedin
+    3. Instagram
+    4. Twitter
+  * A website is developed by three categories of team :
+    1. Security Analyst
+    2. Developer
+    3. Cloud Enginneer
+
+  ### Twitter Server Architecture
+    * Webserver is connected to Storage device with chunks of distrubuted storages inside
+    * user is verified by 2 step verification and only after verification the storage device sends the data to the user
+    * the process of collecting data from twitter account through an API is known as OAuth.
+    * OAuth is done using consumer key and pass & access token and access key
+     
+
+## Tasks
+  * Collect all general keyword

Diff for: ansible_practice.md

@@ -42,4 +42,141 @@
  * Go to security Credentials download security access token file
  * run command ``` aws configure ```
  * enter your credentials from file
- * 
+ *
+ -----
+
+ # ansible
+
+ * ansible --version # shows the version of ansible
+ * ansible all -m ping     # used to run command on all ip in hosts file
+ * ssh-copy-id ip-address   # used to send the ssh of your system to other systems you want to get access to
+ * to ssh-copy you will need the password of all those os
+ * always write ansible playbooks in a directory
+ * Syntax
+ ```
+  ---
+    - hosts:192.168.10.41     # play1
+      tasks:
+       - name: running database
+         command: date
+
+    - hosts:192.168.10.72     # play2
+      tasks:
+       - name: running database
+         command: cal  
+  ```
+  * multi-play - > when to run different command on different os
+  * always make a sample playbook of yml
+
+  ```
+  ---
+    - hosts: all    # all is used when need to work on all ip in hosts file
+      vars:
+       x: date
+      tasks:
+       - name: running
+         command: "{{ x }}"
+         register: variable-name    # register store the output of  above command inside it
+
+       - name: to print data of var
+         debug: var=out              # printing the data stored in  variable above
+
+       - name: to print date command output clearly
+         debug: var=out.stdout       # by default out is a json  format and thus we can find easily using dictionary pattern
+
+       - name: to print date command output with some message
+         debug: msg="hello my output is {{ out.stdout }} "
+
+       - name: to store output of command in a file
+         copy: content=" {{ variable }}" dest=output.txt
+  ```
+  * ansible-playbook playbook-name.yml -v # shows the output of command
+  * ansible-playbook playbook-name.yml -e x=command , used to change variable value for x written in ansible playbook
+  * to check ansible playbook
+  ```ansible-playbook --syntax-check play-book name```
+
+  * importing variables from a file
+
+  * hosts file is known as inventory
+  * to run different inventory file
+  ```
+  ansible-playbook playbook-name.yml -i /etc/hosts1 # hosts1 is inventory name
+
+  * to change default settings of ansible
+  ```
+  /etc/ansible/ansible.cfg
+  ```
+  * By default ansible is service less, it reads the conf file from present working directory initially
+  * ```ssh ip -t "command to run "``` shows output on your own system that is run on other system
+  * Inventory Variable
+  * in inventory file or hosts file
+  ```
+  [group-name:vars]
+  x=date
+  ```
+  * to make different group have same variable make children or group in hosts file
+  ```
+  [ok:children]
+  a
+  b
+  ```
+  * to define group variables
+  ```
+  [ok:vars]
+  x=date
+  ```
+  * to apply vars for all ips , make a directory named vars
+
+  * for more info
+  ```
+  slashdevops.blogspot.com
+  ```
+  * search for ansible
+
+## Ansible facts
+  * to know different variables existing on self system  
+  ```
+  ansible localhost -m setup
+  ```
+  * facts module is not required to be mentioned
+
+```
+ ---
+  - hosts: localhost
+    tasks:
+     - name: using system facts
+       debug: msg="my os name is {{ ansible_distribution }}"
+
+     - name: finding address details of other os
+       debug: msg="my os ip details are {{ansible_default_ipv4}} {{ ansible_default_ipv4.macaddress }}"
+
+     - name: copy  address details of other os
+       copy: content="my os ip details are {{ansible_default_ipv4}} {{ ansible_default_ipv4.macaddress }}" dest=/root/ip.txt       
+```
+  * name of selinux in ubuntu is apparmor
+  * ansible_apparmor is ansible fact used for accessing selinux of other system
+
+
+* to install
+```
+  ---
+    - hosts: localhost
+      tasks:
+       - name: install
+         yum:
+          name: telnet
+          state: present
+         register: y
+
+       - name: output
+         debug: var=y
+```
+
+* by default ansible gathers facts and to make sure it does not do that
+```
+gather_facts: no     #under hosts file
+```
+* official website of ansible
+```
+docs.ansible.com
+```

Diff for: rhel8.md

@@ -493,7 +493,7 @@ ps -aux --sort=pcpu
   ```
   /dev/mapper/vdo1 path-to-mount xfs defaults,x-systemd.requires=vdo.service 0 0
   ```
-  
+
 ----
 
 # RHEL 8 exam tips  ( NOTHING IS RIGID ... SAMEY KE SAATH PARIVARTAN NISHCHIT HAI )