deploy rds

app/Dockerfile

@@ -1,6 +1,5 @@
 FROM python:3.9-slim
 WORKDIR /app
 COPY . /app
-RUN pip install Flask mysql-connector-python
-EXPOSE 5000
+RUN pip install pymysql 
 CMD ["python", "app.py"]

app/app.py

@@ -1,33 +1,32 @@
-from flask import Flask
-import mysql.connector
-from mysql.connector import Error
 import os
+import pymysql
 
-app = Flask(__name__)
+# Retrieve database connection details from environment variables
+host = os.getenv('MYSQL_HOST', 'localhost')  # Default to 'localhost' if not set
+user = os.getenv('MYSQL_USER', 'root')       # Default to 'root' if not set
+password = os.getenv('MYSQL_PASSWORD', '')   # Default to empty string if not set
+database = os.getenv('MYSQL_DB', 'test')   # Default to 'test' if not set
 
-# Database connection function
-def connect_to_db():
-    try:
-        # Use environment variables for connection details
-        connection = mysql.connector.connect(
-            host=os.getenv('MYSQL_HOST', 'localhost'),     
-            user=os.getenv('MYSQL_USER', 'dbuser'),           
-            password=os.getenv('MYSQL_PASSWORD', 'pass123'),       
-            database=os.getenv('MYSQL_DB', 'test_db')       
-        )
+connection = None
+try:
+    # Establish a connection to the database
+    connection = pymysql.connect(
+        host=host,
+        user=user,
+        password=password,
+        database=database
+    )
 
-        if connection.is_connected():
-            return "Hello, World! Connected to MySQL Database"
-    except Error as error:
-        return f"Error connecting to MySQL: {error}"
-    finally:
-        if connection.is_connected():
-            connection.close()
+    # If connection is successful
+    print(f"Connection to MySQL database '{database}' successful!")
 
-# Define the route
-@app.route("/")
-def hello_world():
-    return connect_to_db()
+    # You can perform your queries here if needed
 
-if __name__ == "__main__":
-    app.run(host="0.0.0.0", port=5000)
+except pymysql.MySQLError as e:
+    # Handle any errors during connection
+    print(f"Error connecting to MySQL database: {e}")
+finally:
+    # Close the connection if it's open
+    if connection:
+        connection.close()
+        print("Connection closed.")

rds.tf

@@ -1,83 +1,76 @@
-# Create RDS subnet group
-resource "aws_db_subnet_group" "RDS_subnet_grp" {
-  name       = var.db_subnet_grp
-  subnet_ids = aws_subnet.private_db_subnets.*.id
-}
-
-resource "random_password" "db" {
-  length  = 20
-  special = false
-}
+# # Create RDS subnet group
+# resource "aws_db_subnet_group" "RDS_subnet_grp" {
+#   name       = var.db_subnet_grp
+#   subnet_ids = aws_subnet.private_db_subnets.*.id
+# }
 
-resource "aws_ssm_parameter" "db_password" {
-  name  = "db_password"
-  type  = "SecureString"
-  value = random_password.db.result
-}
-# Create RDS instance
-resource "aws_db_instance" "app_db" {
-  identifier              = var.primary_rds_identifier
-  availability_zone       = var.az[0]
-  allocated_storage       = 10
-  engine                  = "mysql"
-  engine_version          = "8.0.32"
-  instance_class          = var.db_instance_type
-  storage_type            = "gp2"
-  db_subnet_group_name    = aws_db_subnet_group.RDS_subnet_grp.name
-  vpc_security_group_ids  = [aws_security_group.db_server_sg.id]
-  db_name                 = var.database_name
-  username                = var.database_user
-  password                = random_password.db.result
-  skip_final_snapshot     = true
-  backup_retention_period = 7
+# resource "random_password" "db" {
+#   length  = 20
+#   special = false
+# }
 
-  # CW Logs 
-  enabled_cloudwatch_logs_exports = ["error", "general", "slowquery", "audit"]
+# resource "aws_ssm_parameter" "db_password" {
+#   name  = "db_password"
+#   type  = "SecureString"
+#   value = random_password.db.result
+# }
+# # Create RDS instance
+# resource "aws_db_instance" "app_db" {
+#   identifier              = var.primary_rds_identifier
+#   availability_zone       = var.az[0]
+#   allocated_storage       = 10
+#   engine                  = "mysql"
+#   engine_version          = "8.0.32"
+#   instance_class          = var.db_instance_type
+#   storage_type            = "gp2"
+#   db_subnet_group_name    = aws_db_subnet_group.RDS_subnet_grp.name
+#   vpc_security_group_ids  = [aws_security_group.db_server_sg.id]
+#   db_name                 = var.database_name
+#   username                = var.database_user
+#   password                = random_password.db.result
+#   skip_final_snapshot     = true
+#   backup_retention_period = 7
+# }
 
-  lifecycle {
-    ignore_changes = [password]
-  }
-}
+# # # Create RDS instance replica
+# # resource "aws_db_instance" "app_db_replica" {
+# #   replicate_source_db    = var.primary_rds_identifier
+# #   identifier             = var.replica_rds_identifier
+# #   availability_zone      = var.az[1]
+# #   allocated_storage      = 10
+# #   engine                 = "mysql"
+# #   engine_version         = "8.0.32"
+# #   instance_class         = var.db_instance_type
+# #   storage_type           = "gp2"
+# #   vpc_security_group_ids = [aws_security_group.db_server_sg.id]
+# #   skip_final_snapshot    = true
 
-# # Create RDS instance replica
-# resource "aws_db_instance" "app_db_replica" {
-#   replicate_source_db    = var.primary_rds_identifier
-#   identifier             = var.replica_rds_identifier
-#   availability_zone      = var.az[1]
-#   allocated_storage      = 10
-#   engine                 = "mysql"
-#   engine_version         = "8.0.32"
-#   instance_class         = var.db_instance_type
-#   storage_type           = "gp2"
-#   vpc_security_group_ids = [aws_security_group.db_server_sg.id]
-#   skip_final_snapshot    = true
+# #   depends_on = [aws_db_instance.app_db]
+# # }
 
-#   depends_on = [aws_db_instance.app_db]
+# # Security group for database servers
+# resource "aws_security_group" "db_server_sg" {
+#   name        = "db-server-SG"
+#   description = "Allow inbound SSH traffic for instances in database tier"
+#   vpc_id      = aws_vpc.project_vpc.id
 # }
 
-# Security group for database servers
-resource "aws_security_group" "db_server_sg" {
-  name        = "db-server-SG"
-  description = "Allow inbound SSH traffic for instances in database tier"
-  vpc_id      = aws_vpc.project_vpc.id
-}
-
-# Give application servers access to database servers
-resource "aws_security_group_rule" "db_server_mysql_rule" {
-  security_group_id        = aws_security_group.db_server_sg.id
-  type                     = "ingress"
-  from_port                = 3306
-  to_port                  = 3306
-  protocol                 = "tcp"
-  source_security_group_id = module.eks.node_security_group_id
-}
+# # Give application servers access to database servers
+# resource "aws_security_group_rule" "db_server_mysql_rule" {
+#   security_group_id        = aws_security_group.db_server_sg.id
+#   type                     = "ingress"
+#   from_port                = 3306
+#   to_port                  = 3306
+#   protocol                 = "tcp"
+#   source_security_group_id = module.eks.node_security_group_id
+# }
 
-# Allow outbound traffic
-resource "aws_security_group_rule" "db_server_outbound_rule" {
-  security_group_id = aws_security_group.db_server_sg.id
-  type              = "egress"
-  from_port         = 0
-  to_port           = 0
-  protocol          = "-1"
-  cidr_blocks       = ["0.0.0.0/0"]
-}
+# # Allow outbound traffic
+# resource "aws_security_group_rule" "db_server_outbound_rule" {
+#   security_group_id = aws_security_group.db_server_sg.id
+#   type              = "egress"
+#   from_port         = 0
+#   to_port           = 0
+#   protocol          = "-1"
+#   cidr_blocks       = ["0.0.0.0/0"]
+# }

variables.tf

@@ -92,7 +92,7 @@ variable "db_engine_version" {
 # RDS instance name
 variable "database_name" {
   type        = string
-  default     = "db_subnet_grp"
+  default     = "alex"
   description = "name of RDS instance"
 }
 
@@ -103,20 +103,6 @@ variable "database_user" {
   default     = "dbuser"
 }
 
-# RDS instance password
-variable "database_password" {
-  type      = string
-  sensitive = false
-  default   = "password123"
-}
-
-# ID of EC2 instance AMI
-variable "ami" {
-  type        = string
-  default     = "ami-0ea3c35c5c3284d82"
-  description = "ID of Instance AMI"
-}
-
 # Type of instance
 variable "instance_type" {
   type        = string