add files

Author: miltozz

.vscode/launch.json

@@ -0,0 +1,18 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Python: Current File",
+            "type": "python",
+            "request": "launch",
+            "program": "${file}",
+            "console": "integratedTerminal",
+            "justMyCode": true,
+            "env":{"BACON":"SOGOOD"} //not working in vscode 08/2022
+        }
+    ]
+}

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "python.envFile": "${workspaceFolder}/.env" //semi-broken. works in debug mode
+}

boto_automations/snapshots_restore_volume.py

@@ -96,7 +96,7 @@
     print(vol.state)
     if vol.state == 'available':
         ec2_resource.Instance(instance_id).attach_volume(
-            Device='/dev/xvdb',
+            Device='/dev/xvda',
             VolumeId=new_volume['VolumeId']
         )
         print('\nVolume attached!')

play_test.py

@@ -1,47 +0,0 @@
-from operator import itemgetter
-
-l = ['one', 'two', 'three']
-d = {'pizza': 'good', 'pasta': 'also good', 'burger': 'very good'}
-
-g_dict = {
-    'choco': 'late',
-    'van': 'illa',
-    'g_list1':
-    [
-        {
-            'fdict1a': 'fdictval1a',
-            'fdict1b': 'fdictval1b',
-            'StartTime': 333
-        },
-        {
-            'fdict1a': 'fdictval2a',
-            'fdict1b': 'fdictval2b',
-            'StartTime': 111
-        },
-        {
-            'fdict1a': 'fdictval2a-copy',
-            'fdict1b': 'fdictval2b-copy',
-            'StartTime': 222
-        }
-    ],
-    'espresso': 'freddo',
-    'latte': 'machiatto',
-    'g_list2':
-    [
-        {
-            'fdict1a': 'fdictval3a',
-            'fdict1b': 'fdictval3b'
-        },
-        {
-            'fdict1a': 'fdictval4a',
-            'fdict1b': 'fdictval4b'
-        }
-    ],
-}
-
-
-# sort the list of dictionaries by 'StartTime' and reverse
-da_sorted = sorted(g_dict['g_list1'], key=itemgetter('StartTime'), reverse=True)
-
-for item in da_sorted:
-    print(item)

python_tips/env_vars.py

@@ -0,0 +1,17 @@
+import os
+
+# dotenv package
+# Mainly for development environments.
+# reads env vars from .env file, if exists.
+
+# from dotenv import load_dotenv
+# load_dotenv()
+
+
+# python os package.
+# read env vars
+print(os.getenv('EMAIL_ADDRESS'))
+print(os.getenv('EMAIL_PASSWORD'))
+
+print(os.environ.get('EMAIL_ADDRESS'))
+print(os.environ.get('EMAIL_PASSWORD'))

python_tips/python_remote_ssh_fabric.py

@@ -0,0 +1,24 @@
+from fabric import Connection
+from invoke import Responder
+
+# set host 'ec2-monitor' in .ssh/config to be read automatically
+# else must specify connection details here
+result = Connection('ec2-monitor').run('docker ps', hide=True)
+msg = "Ran {0.command!r} on {0.connection.host}, got stdout:\n{0.stdout}"
+print(msg.format(result))
+
+
+# other syntax
+c = Connection('ec2-monitor')
+r = c.run('sudo whoami', hide=True)
+msg = "Ran {0.command!r} on {0.connection.host}, got stdout:\n{0.stdout}"
+print(msg.format(result))
+
+
+# sudo password prompt
+""" c = Connection('host')
+sudopass = Responder(
+    pattern=r'\[sudo\] password:',
+    response='mypassword\n',
+)
+c.run('sudo whoami', pty=True, watchers=[sudopass]) """

python_tips/python_remote_ssh_paramiko.py

@@ -0,0 +1,18 @@
+# execute remote commands via shh with paramiko
+
+from sys import stderr, stdin, stdout
+import paramiko
+
+
+ssh = paramiko.SSHClient()
+
+# known_hosts prompt
+ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+
+# connect as ec2-user with .pem | root connection might require priv-key pub-key.pub
+ssh.connect(hostname='18.184.246.158',
+            username="ec2-user",
+            key_filename='/home/mltamd/.ssh/ec2-key-pair-frankfurt.pem')
+stdin, stdout, stderr = ssh.exec_command('docker ps')
+print(stdout.readlines())
+ssh.close()

website_monitor/website-monitor.py

@@ -0,0 +1,34 @@
+import requests
+import smtplib
+import os
+# from dotenv import load_dotenv
+# load_dotenv()
+
+EMAIL_ADDRESS = os.getenv('EMAIL_ADDRESS')
+EMAIL_PASSWORD = os.getenv('EMAIL_PASSWORD')
+
+
+def send_notification(email_content):
+    with smtplib.SMTP('smtp.gmail.com', 587) as smtp:
+        smtp.ehlo()
+        smtp.starttls()
+        smtp.login(EMAIL_ADDRESS, EMAIL_PASSWORD)
+        #smtp.sendmail(sender, receiver, message)
+        email_content = f"Subject:WEB MONITOR ALERT\n{email_content}"
+        smtp.sendmail(EMAIL_ADDRESS, EMAIL_ADDRESS, email_content)
+
+
+try:
+    r = requests.get(
+        'http://ec2-18-184-246-158.eu-central-1.compute.amazonaws.com:8080/')
+    if r.status_code == 200:
+        print("Website is up!")
+    else:
+        print("Website is down!")
+        # send email
+        message = "Website is down!"
+        send_notification(message)
+except Exception as e:
+    print(f"Connection error: {e}")
+    message = "Connection error!"
+    send_notification(message)