Lea

0x0B-ssh/README.md

@@ -6,4 +6,4 @@
 - What is SSH
 - How to create an SSH RSA key pair
 - How to connect to a remote host using an SSH RSA key pair
-- The advantage of using #!/usr/bin/env bash instead of /bin/bash
+- The advantage of using #!/usr/bin/env bash instead of /bin/b

0x14-mysql/4-mysql_configuration_primary

@@ -1,19 +1,26 @@
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License, version 2.0, for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+
 #
 # The MySQL  Server configuration file.
 #
+# For explanations see
+# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
 
 [mysqld]
 pid-file        = /var/run/mysqld/mysqld.pid
 socket          = /var/run/mysqld/mysqld.sock
 datadir         = /var/lib/mysql
 log-error       = /var/log/mysql/error.log
 # By default we only accept connections from localhost
-bind-address    = 0.0.0.0
-# Disabling symbolic-links is recommended to prevent assorted security risks
-symbolic-links=0
-# Distinguish servers in a replication setup
+#bind-address   = 127.0.0.1
 server-id       = 1
-# MySQL's Binary Log File
 log_bin         = /var/log/mysql/mysql-bin.log
-# Database we want to replicate
+# Disabling symbolic-links is recommended to prevent assorted security risks
+symbolic-links=0
+
 binlog_do_db    = tyrell_corp

0x14-mysql/4-mysql_configuration_replica

@@ -1,21 +1,18 @@
-#
 # The MySQL  Server configuration file.
 #
+# For explanations see
+# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
 
 [mysqld]
 pid-file        = /var/run/mysqld/mysqld.pid
 socket          = /var/run/mysqld/mysqld.sock
 datadir         = /var/lib/mysql
 log-error       = /var/log/mysql/error.log
 # By default we only accept connections from localhost
-bind-address    = 127.0.0.1
-# Disabling symbolic-links is recommended to prevent assorted security risks
-symbolic-links=0
-# Distinguish servers in a replication setup
+# bind-address  = 127.0.0.1
 server-id       = 2
-# MySQL's Binary Log File
 log_bin         = /var/log/mysql/mysql-bin.log
-# Database we want to replicate
+# Disabling symbolic-links is recommended to prevent assorted security risks
+symbolic-links=0
 binlog_do_db    = tyrell_corp
-# Defines the location of the replica's relay log
 relay-log       = /var/log/mysql/mysql-relay-bin.log

0x14-mysql/5-mysql_backup

@@ -1,11 +1,5 @@
 #!/usr/bin/env bash
-# backup and compress my databases
+# This script generates a MySQL dump and creates a compressed archive  of it
 
-# variables
-day=$(date +"%d")
-month=$(date +"%m")
-year=$(date +"%Y")
-file_name="$day-$month-$year.tar.gz"
-
-mysqldump --all-databases -u root --password="$1" > backup.sql
-tar -czvf "$file_name" backup.sql
+mysqldump -uroot -p"$1" --all-databases > backup.sql
+tar -czf $(date +%d-%m-%Y).tar.gz backup.sql

0x14-mysql/README.md

@@ -1,138 +1 @@
-# 0x14. MySQL 
-
-<p align="center">
-  <img src="https://s3.amazonaws.com/intranet-projects-files/holbertonschool-sysadmin_devops/280/KkrkDHT.png"
-</p>
-
-## Resource
-
-- [What is a database](https://searchdatamanagement.techtarget.com/definition/database)
-- [What is a database primary/replicate cluster](https://www.digitalocean.com/community/tutorials/how-to-choose-a-redundancy-plan-to-ensure-high-availability#sql-replication)
-- [MySQL primary/replicate setup](https://www.digitalocean.com/community/tutorials/how-to-set-up-replication-in-mysql)
-- [Build a robust database backup strategy](https://www.databasejournal.com/ms-sql/developing-a-sql-server-backup-strategy/)
-- [Privileges Provided by MySQL](https://dev.mysql.com/doc/refman/8.0/en/privileges-provided.html#priv_replication-client) (***Replication Client***)
-- [Creating User for Replication](https://dev.mysql.com/doc/refman/8.0/en/replication-howto-repuser.html)
-- [Setting up replicas](https://dev.mysql.com/doc/refman/5.7/en/replication-setup-replicas.html) (***MySQL 5.7.x***)
-
-## Tasks
-
-<details>
-<summary>0. Install MySQL</summary><br>
-<a href='https://postimages.org/' target='_blank'><img src='https://i.postimg.cc/wMPwtg5K/image.png' border='0' alt='image'/></a>
-</details>
-
-<details>
-<summary>1. Let us in!</summary><br>
-
-<a href='https://postimages.org/' target='_blank'><img src='https://i.postimg.cc/zB1QFncd/image.png' border='0' alt='image'/></a>
-```sh
-mysql> CREATE USER 'holberton_user'@'localhost' IDENTIFIED BY 'projectcorrection280hbtn';
-mysql> GRANT REPLICATION CLIENT ON *.* to 'holberton_user'@'localhost';
-mysql> FLUSH PRIVILEGES;
-```
-
-</details>
-
-<details>
-<summary>2. If only you could see what I've seen with your eyes</summary><br>
-
-<a href='https://postimages.org/' target='_blank'><img src='https://i.postimg.cc/sgDm766T/image.png' border='0' alt='image'/></a>
-```sh
-mysql> CREATE DATABASE tyrell_corp;
-mysql> USE tyrell_corp;
-mysql> CREATE TABLE nexus6 (id INT, name VARCHAR(256));
-mysql> INSERT INTO nexus6 (id, name) VALUES ('1', 'Leon');
-mysql> GRANT SELECT ON tyrell_corp.nexus6 TO 'holberton_user'@'localhost';
-```
-
-</details>
-
-<details>
-<summary>3. Quite an experience to live in fear, isn't it?</summary><br>
-
-<a href='https://postimages.org/' target='_blank'><img src='https://i.postimg.cc/D0CmW3vT/image.png' border='0' alt='image'/></a>
-```sh
-msql> CREATE USER 'replica_user'@'%' IDENTIFIED BY 'password';
-mysql> GRANT SELECT ON mysql.user TO 'holberton_user'@'localhost';
-mysql> GRANT REPLICATION SLAVE ON *.* TO 'replica_user'@'%';
-```
-
-</details>
-
-<details>
-<summary>4. Setup a Primary-Replica infrastructure using MySQL</summary><br>
-
-<a href='https://postimages.org/' target='_blank'><img src='https://i.postimg.cc/MKBBLGVn/09e83e914f0d6865ce320a47f2f14837a5b190b6.gif' border='0' alt='09e83e914f0d6865ce320a47f2f14837a5b190b6'/></a>
-<a href='https://postimages.org/' target='_blank'><img src='https://i.postimg.cc/9fkyDg7k/image.png' border='0' alt='image'/></a>
-<a href='https://postimages.org/' target='_blank'><img src='https://i.postimg.cc/Jhhb4DpP/image.png' border='0' alt='image'/></a>
-<a href='https://postimg.cc/4nLx8dpx' target='_blank'><img src='https://i.postimg.cc/28mLSL6h/image.png' border='0' alt='image'/></a>
-
-+ [MySQL primary configuration](./4-mysql_configuration_primary)
-+ [MySQL replica configuration](./4-mysql_configuration_replica)
-
-</details>
-
-<details>
-<summary>5. MySQL backup</summary><br>
-
-[![IMAGE ALT TEXT HERE](https://i.postimg.cc/3NtKg0gR/verizon.jpg)](https://www.youtube.com/watch?v=ANU-oSE5_hU)
-<a href='https://postimages.org/' target='_blank'><img src='https://i.postimg.cc/J7YV5LfG/image.png' border='0' alt='image'/></a>
-
-```sh
-ubuntu@03-web-01:~$ ls
-5-mysql_backup
-ubuntu@03-web-01:~$ ./5-mysql_backup mydummypassword
-backup.sql
-ubuntu@03-web-01:~$ ls
-01-03-2017.tar.gz  5-mysql_backup  backup.sql
-ubuntu@03-web-01:~$ more backup.sql
--- MySQL dump 10.13  Distrib 5.7.25, for debian-linux-gnu (x86_64)
---
--- Host: localhost    Database:
--- ------------------------------------------------------
--- Server version   5.7.25-0ubuntu0.14.04.1
-
-/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
-/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
-/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
-/*!40101 SET NAMES utf8 */;
-/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
-/*!40103 SET TIME_ZONE='+00:00' */;
-/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
-/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
-/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
-
---
--- Current Database: `tyrell_corp`
---
-
-CREATE DATABASE /*!32312 IF NOT EXISTS*/ `tyrell_corp` /*!40100 DEFAULT CHARACTER SET latin1 */;
-
-USE `tyrell_corp`;
-
---
--- Table structure for table `nexus6`
---
-
-DROP TABLE IF EXISTS `nexus6`;
-/*!40101 SET @saved_cs_client     = @@character_set_client */;
-/*!40101 SET character_set_client = utf8 */;
-CREATE TABLE `nexus6` (
-  `id` int(6) unsigned NOT NULL AUTO_INCREMENT,
-  `firstname` varchar(30) NOT NULL,
-  `lastname` varchar(30) NOT NULL,
-  `email` varchar(50) DEFAULT NULL,
-  `reg_date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-  PRIMARY KEY (`id`)
-) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=latin1;
-/*!40101 SET character_set_client = @saved_cs_client */;
-ubuntu@03-web-01:~$
-ubuntu@03-web-01:~$ file 01-03-2017.tar.gz
-01-03-2017.tar.gz: gzip compressed data, from Unix, last modified: Wed Mar  1 23:38:09 2017
-ubuntu@03-web-01:~$
-```
-
-+ [Backup script](./5-mysql_backup)
-
-</details>
+# Solutions to tasks on MySQL

0x15-api/0-gather_data_from_an_API.py

@@ -1,30 +1,31 @@
 #!/usr/bin/python3
-'''A script that gathers employee name completed
-tasks and total number of tasks from an API
-'''
+"""Accessing a REST API for todo lists of employees"""
 
-import re
 import requests
 import sys
 
-REST_API = "https://jsonplaceholder.typicode.com"
 
 if __name__ == '__main__':
-    if len(sys.argv) > 1:
-        if re.fullmatch(r'\d+', sys.argv[1]):
-            id = int(sys.argv[1])
-            emp_req = requests.get('{}/users/{}'.format(REST_API, id)).json()
-            task_req = requests.get('{}/todos'.format(REST_API)).json()
-            emp_name = emp_req.get('name')
-            tasks = list(filter(lambda x: x.get('userId') == id, task_req))
-            completed_tasks = list(filter(lambda x: x.get('completed'), tasks))
-            print(
-                'Employee {} is done with tasks({}/{}):'.format(
-                    emp_name,
-                    len(completed_tasks),
-                    len(tasks)
-                )
-            )
-            if len(completed_tasks) > 0:
-                for task in completed_tasks:
-                    print('\t {}'.format(task.get('title')))
+    employeeId = sys.argv[1]
+    baseUrl = "https://jsonplaceholder.typicode.com/users"
+    url = baseUrl + "/" + employeeId
+
+    response = requests.get(url)
+    employeeName = response.json().get('name')
+
+    todoUrl = url + "/todos"
+    response = requests.get(todoUrl)
+    tasks = response.json()
+    done = 0
+    done_tasks = []
+
+    for task in tasks:
+        if task.get('completed'):
+            done_tasks.append(task)
+            done += 1
+
+    print("Employee {} is done with tasks({}/{}):"
+          .format(employeeName, done, len(tasks)))
+
+    for task in done_tasks:
+        print("\t {}".format(task.get('title')))

0x15-api/1-export_to_CSV.py

@@ -0,0 +1,24 @@
+#!/usr/bin/python3
+"""Accessing a REST API for todo lists of employees"""
+
+import requests
+import sys
+
+
+if __name__ == '__main__':
+    employeeId = sys.argv[1]
+    baseUrl = "https://jsonplaceholder.typicode.com/users"
+    url = baseUrl + "/" + employeeId
+
+    response = requests.get(url)
+    username = response.json().get('username')
+
+    todoUrl = url + "/todos"
+    response = requests.get(todoUrl)
+    tasks = response.json()
+
+    with open('{}.csv'.format(employeeId), 'w') as file:
+        for task in tasks:
+            file.write('"{}","{}","{}","{}"\n'
+                       .format(employeeId, username, task.get('completed'),
+                               task.get('title')))

0x15-api/2-export_to_JSON.py

@@ -0,0 +1,29 @@
+#!/usr/bin/python3
+"""Accessing a REST API for todo lists of employees"""
+
+import json
+import requests
+import sys
+
+
+if __name__ == '__main__':
+    employeeId = sys.argv[1]
+    baseUrl = "https://jsonplaceholder.typicode.com/users"
+    url = baseUrl + "/" + employeeId
+
+    response = requests.get(url)
+    username = response.json().get('username')
+
+    todoUrl = url + "/todos"
+    response = requests.get(todoUrl)
+    tasks = response.json()
+
+    dictionary = {employeeId: []}
+    for task in tasks:
+        dictionary[employeeId].append({
+            "task": task.get('title'),
+            "completed": task.get('completed'),
+            "username": username
+        })
+    with open('{}.json'.format(employeeId), 'w') as filename:
+        json.dump(dictionary, filename)

0x15-api/2.csv

@@ -0,0 +1,20 @@
+"2","Antonette","False","suscipit repellat esse quibusdam voluptatem incidunt"
+"2","Antonette","True","distinctio vitae autem nihil ut molestias quo"
+"2","Antonette","False","et itaque necessitatibus maxime molestiae qui quas velit"
+"2","Antonette","False","adipisci non ad dicta qui amet quaerat doloribus ea"
+"2","Antonette","True","voluptas quo tenetur perspiciatis explicabo natus"
+"2","Antonette","True","aliquam aut quasi"
+"2","Antonette","True","veritatis pariatur delectus"
+"2","Antonette","False","nesciunt totam sit blanditiis sit"
+"2","Antonette","False","laborum aut in quam"
+"2","Antonette","True","nemo perspiciatis repellat ut dolor libero commodi blanditiis omnis"
+"2","Antonette","False","repudiandae totam in est sint facere fuga"
+"2","Antonette","False","earum doloribus ea doloremque quis"
+"2","Antonette","False","sint sit aut vero"
+"2","Antonette","False","porro aut necessitatibus eaque distinctio"
+"2","Antonette","True","repellendus veritatis molestias dicta incidunt"
+"2","Antonette","True","excepturi deleniti adipisci voluptatem et neque optio illum ad"
+"2","Antonette","False","sunt cum tempora"
+"2","Antonette","False","totam quia non"
+"2","Antonette","False","doloremque quibusdam asperiores libero corrupti illum qui omnis"
+"2","Antonette","True","totam atque quo nesciunt"

0x15-api/3-dictionary_of_list_of_dictionaries.py

@@ -0,0 +1,31 @@
+#!/usr/bin/python3
+"""Accessing a REST API for todo lists of employees"""
+
+import json
+import requests
+import sys
+
+
+if __name__ == '__main__':
+    url = "https://jsonplaceholder.typicode.com/users"
+
+    response = requests.get(url)
+    users = response.json()
+
+    dictionary = {}
+    for user in users:
+        user_id = user.get('id')
+        username = user.get('username')
+        url = 'https://jsonplaceholder.typicode.com/users/{}'.format(user_id)
+        url = url + '/todos/'
+        response = requests.get(url)
+        tasks = response.json()
+        dictionary[user_id] = []
+        for task in tasks:
+            dictionary[user_id].append({
+                "task": task.get('title'),
+                "completed": task.get('completed'),
+                "username": username
+            })
+    with open('todo_all_employees.json', 'w') as file:
+        json.dump(dictionary, file)