diff --git a/content/3-preparefor-configure-ecs/_index.md b/content/3-preparefor-configure-ecs/_index.md
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+title = "Preparing for ECS"
+date = 2024
+weight = 3
+chapter = false
+pre = "3. "
++++
+
+#### Adding a Private Subnet
+
+In the VPC management interface, from the left-hand menu:
+
+- Select **Subnet**
+- Click **Create subnet**
+
+![3.1](/images/3-prepare-for-ecs/3.1.png)
+
+- Select the VPC **FCJ-Lab-vpc**
+
+![3.2](/images/3-prepare-for-ecs/3.2.png)
+
+Follow these settings:
+
+- Subnet name: `FCJ-Lab-subnet-private3`
+- Choose Availability Zone
+- IPv4 VPC CIDR block: `10.0.0.0/16`
+- IPv4 subnet CIDR block: `10.0.32.0/20`
+- Click **Create subnet**
+
+![3.3](/images/3-prepare-for-ecs/3.3.png)
+
+Result:
+
+![3.4](/images/3-prepare-for-ecs/3.4.png)
+
+Similarly, create another subnet:
+
+- Subnet name: `FCJ-Lab-subnet-private4`
+- Choose a different Availability Zone than the one chosen earlier
+- IPv4 VPC CIDR block: `10.0.0.0/16`
+- IPv4 subnet CIDR block: `10.0.64.0/20`
+- Click **Create subnet**
+
+![3.5](/images/3-prepare-for-ecs/3.5.png)
+
+Result:
+
+![3.6](/images/3-prepare-for-ecs/3.6.png)
+
+#### Creating a NAT Gateway
+
+First, we need to create Elastic IPs to assign to the NAT Gateway. In the VPC management interface, from the left-hand menu:
+
+- Select **Elastic IPs**
+- Click **Allocate Elastic IP address**
+
+![3.7](/images/3-prepare-for-ecs/3.7.png)
+
+Elastic IP address configuration:
+
+- Public IPv4 address pool: **Amazon's pool of IPv4 address**
+- Network border group: **ap-southeast-1** if using the same region
+
+![3.8](/images/3-prepare-for-ecs/3.8.png)
+
+For tags (optional):
+
+- Key: `Name`
+- Value: `FCJ-Lab-IP`
+- Click **Allocate**
+
+![3.9](/images/3-prepare-for-ecs/3.9.png)
+
+Next, we'll create the NAT Gateway. From the right-hand menu:
+
+- Select **NAT gateways**
+- Click **Create NAT gateway**
+
+![3.11](/images/3-prepare-for-ecs/3.11.png)
+
+NAT Gateway configuration:
+
+- Name: `FCJ-Lab-nat`
+- Subnet: Select a public subnet as instructed
+- Connectivity type: **Public**
+- Select the Elastic IP created earlier
+- Click **Create NAT gateway**
+
+![3.12](/images/3-prepare-for-ecs/3.12.png)
+
+Wait a moment until the state changes to **Available**.
+
+![3.14](/images/3-prepare-for-ecs/3.14.png)
+
+#### Route Table
+
+In the VPC management interface, from the left-hand menu:
+
+- Select **Route tables**
+- Click **Create route table**
+
+![3.15](/images/3-prepare-for-ecs/3.15.png)
+
+- Name: `FCJ-rtb-private`
+- VPC: **FCJ-Lab-vpc**
+- Click **Create route table**
+
+![3.16](/images/3-prepare-for-ecs/3.16.png)
+
+Next, we'll associate the NAT Gateway with the route table:
+
+- Select the route table created
+- Click **Edit routes**
+
+![3.17](/images/3-prepare-for-ecs/3.17.png)
+
+- Click **Add route**
+- Destination: **0.0.0.0/0**
+- Target: **NAT Gateway**
+- Select the NAT Gateway **FCJ-Lab-nat** created earlier
+
+![3.18](/images/3-prepare-for-ecs/3.18.png)
+
+Next, associate the private subnets to the route table created. In the route table details:
+
+- Select **Subnet associations**
+- Click **Edit subnet associations**
+
+![3.19](/images/3-prepare-for-ecs/3.19.png)
+
+- Select the two private subnets created earlier
+
+![3.20](/images/3-prepare-for-ecs/3.20.png)
+
+#### Creating Security Groups
+
+In the VPC management interface, from the left-hand menu:
+
+- Select **Security groups**
+- Click **Create security group**
+
+![3.22](/images/3-prepare-for-ecs/3.22.png)
+
+Security group configuration:
+
+- Name: `FCJ-Lab-sg-private`
+- Description: `Allow access for Internet`
+- Select the VPC created earlier
+
+For Inbound rules:
+
+- Select **All traffic**
+- Choose **FCJ-Lab-sg-public**
+
+![3.23](/images/3-prepare-for-ecs/3.23.png)
+
+For Outbound rules:
+
+- Select **All traffic**
+- Choose **Anywhere IPv4**
+
+![3.24](/images/3-prepare-for-ecs/3.24.png)
+
+Next, assign this security group to the **FCJ-Lab-sg-db** security group.
+
+In the Security groups management interface:
+
+- Select **FCJ-Lab-sg-db**
+- Click **Action**
+- Choose **Edit inbound rules**
+
+![3.25](/images/3-prepare-for-ecs/3.25.png)
+
+In the Inbound Rules:
+
+- Add rule
+- Select **MYSQL/Aurora**
+- Custom, select the security group **FCJ-Lab-sg-private**
+- Click **Save rules**
+
+![3.26](/images/3-prepare-for-ecs/3.26.png)
diff --git a/content/3-preparefor-configure-ecs/_index.vi.md b/content/3-preparefor-configure-ecs/_index.vi.md
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--- /dev/null
+++ b/content/3-preparefor-configure-ecs/_index.vi.md
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+title = "Chuẩn bị cho ECS"
+date = 2024
+weight = 3
+chapter = false
+pre = "3. "
++++
+
+#### Thêm subnet private
+
+Ở giao diện quản lý VPC, ở bảng chọn phía bên trái
+
+- Chọn **Subnet**
+- Nhấn vào nút **Create subnet**
+
+![3.1](/images/3-prepare-for-ecs/3.1.png)
+
+- Chọn VPC **FCJ-Lab-vpc**
+
+![3.2](/images/3-prepare-for-ecs/3.2.png)
+
+Làm theo hướng dẫn
+
+- Subnet name `FCJ-Lab-subnet-private3`
+- Chọn Availability Zone
+- IPv4 VPC CIDR block `10.0.0.0/16`
+- IPv4 subnet CIDR block `10.0.32.0/20`
+- Chọn **Create subnet**
+
+![3.3](/images/3-prepare-for-ecs/3.3.png)
+
+Kết quả
+
+![3.4](/images/3-prepare-for-ecs/3.4.png)
+
+Tương tự chúng ta tạo thêm một subnet nữa
+
+- Subnet name `FCJ-Lab-subnet-private4`
+- Chọn Availability Zone khác với zone của subnet chúng ta vừa tạo ở trên
+- IPv4 VPC CIDR block `10.0.0.0/16`
+- IPv4 subnet CIDR block `10.0.64.0/20`
+- Chọn **Create subnet**
+
+![3.5](/images/3-prepare-for-ecs/3.5.png)
+
+Kết quả
+
+![3.6](/images/3-prepare-for-ecs/3.6.png)
+
+#### Tạo NAT Gateway
+
+Trước tiên chúng ta cần tạo Elastic IPs để gán cho NAT Gateway. Ở giao diện quản lý VPC, ở mục chọn bên trái
+
+- Chọn **Elastic IPs**
+- Chọn **Allocate Elastic IP address**
+
+![3.7](/images/3-prepare-for-ecs/3.7.png)
+
+Cấu hình Elastic IP address
+
+- Public IPv4 address pool **Amazon's pool of IPv4 address**
+- Network border group **ap-southeast-1** nếu bạn sử dụng cùng region
+
+![3.8](/images/3-prepare-for-ecs/3.8.png)
+
+Ở tags optional
+
+- Key `Name`
+- Value `FCJ-Lab-IP`
+- Chọn Allocate
+
+![3.9](/images/3-prepare-for-ecs/3.9.png)
+
+Tiếp theo chúng ta sẽ tiến hành tạo NAT Gateway. Ở mục chọn bên phải
+
+- Chọn **NAT gateways**
+- Chọn **Create NAT gateway**
+
+![3.11](/images/3-prepare-for-ecs/3.11.png)
+
+Cấu hình cho NAT gateway
+
+- Name `FCJ-Lab-nat`
+- Subnet chọn public subnet như hướng dẫn
+- Connectivity type **Public**
+- Chọn Elastic IP vừa tạo ở bước trên
+- Chọn **Create NAT gateway**
+
+![3.12](/images/3-prepare-for-ecs/3.12.png)
+
+Sau khi tạo chúng ta sẽ đợi một chút cho tới khi state **Available**
+
+![3.14](/images/3-prepare-for-ecs/3.14.png)
+
+#### Route table
+
+Ở giao diện quản lý VPC, ở bảng chọn bên trái
+
+- Chọn **Route tables**
+- Chọn **Create route table**
+
+![3.15](/images/3-prepare-for-ecs/3.15.png)
+
+- Name `FCJ-rtb-private`
+- VPC **FCJ-Lab-vpc**
+- Chọn **Create route table**
+
+![3.16](/images/3-prepare-for-ecs/3.16.png)
+
+Tiếp theo chúng ta sẽ gắn NAT gateway cho route table
+
+- Chọn vào route table ta vừa tạo
+- Chọn **Edit routes**
+
+![3.17](/images/3-prepare-for-ecs/3.17.png)
+
+- Chọn **Add route**
+- Chọn Destination **0.0.0.0/0**
+- Target **NAT Gateway**
+- Chọn NAT gateway có tên **FCJ-Lab-nat** mà chúng ta vừa tạo ở bước trước
+
+![3.18](/images/3-prepare-for-ecs/3.18.png)
+
+Tiếp theo chúng ta sẽ thực hiện liên kết các private subnet tới Route table chúng ta vừa tạo. Ở trong phần thông tin của Route table chúng ta vừa tạo.
+
+- Chọn **Subnet associations**
+- Chọn **Edit subnet associations**
+
+![3.19](/images/3-prepare-for-ecs/3.19.png)
+
+- Chọn 2 subnet private mà chúng ta vừa tạo trước đó
+
+![3.20](/images/3-prepare-for-ecs/3.20.png)
+
+#### Tạo security groups
+
+Ở quản lý VPC, bảng chọn phía bên trái
+
+- Chọn **Security groups**
+- Chọn **Create security group**
+
+![3.22](/images/3-prepare-for-ecs/3.22.png)
+
+Cấu hình cho security group
+
+- Name `FCJ-Lab-sg-private`
+- Description `Allow access for Internet`
+- Chọn VPC chúng ta đã tạo
+
+Ở phần Inbound rules
+
+- Chọn **All traffic**
+- Chọn **FCJ-Lab-sg-public**
+
+![3.23](/images/3-prepare-for-ecs/3.23.png)
+
+Ở phần Outbound rules
+
+- Chọn **All traffic**
+- Chọn **Anywhere IPv4**
+
+![3.24](/images/3-prepare-for-ecs/3.24.png)
+
+Tiếp theo chúng ta sẽ gán security group chúng ta vừa tạo vào security group **FCJ-Lab-sg-db**
+
+Ở giao diện quản lý các Security groups
+
+- Chọn **FCJ-Lab-sg-db**
+- Chọn **Action**
+- Chọn **Edit inbound rules**
+
+![3.25](/images/3-prepare-for-ecs/3.25.png)
+
+Ở phần Inbound Rule
+
+- Chọn add rule
+- Chọn MYSQL/Aurora
+- Chọn Custom và chọn tới security group **FCJ-Lab-sg-private**
+- Chọn **Save rules**
+
+![3.26](/images/3-prepare-for-ecs/3.26.png)
diff --git a/content/3-ecs-cluster/_index.md b/content/4-ecs-cluster/_index.md
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+++ b/content/4-ecs-cluster/_index.md
@@ -1,9 +1,9 @@
+++
title = "Create ECS Cluster"
date = 2024
-weight = 3
+weight = 4
chapter = false
-pre = "3. "
+pre = "4. "
+++
#### Creating an Admininistrator Group
diff --git a/content/3-ecs-cluster/_index.vi.md b/content/4-ecs-cluster/_index.vi.md
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+++ b/content/4-ecs-cluster/_index.vi.md
@@ -1,9 +1,9 @@
+++
title = "Tạo ECS Cluster"
date = 2024
-weight = 3
+weight = 4
chapter = false
-pre = "3. "
+pre = "4. "
+++
#### Creating an Admininistrator Group
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+++ b/content/5-ecs-task-definition/_index.md
@@ -1,9 +1,9 @@
+++
title = "Create ECS Task Definition"
date = 2024
-weight = 4
+weight = 5
chapter = false
-pre = "4. "
+pre = "5. "
+++
#### Creating an Admininistrator Group
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+++ b/content/5-ecs-task-definition/_index.vi.md
@@ -1,9 +1,9 @@
+++
title = "Tạo ECS Task Definition"
date = 2024
-weight = 4
+weight = 5
chapter = false
-pre = "4. "
+pre = "5. "
+++
#### Creating an Admininistrator Group
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+++ b/content/6-config-alb/_index.md
@@ -1,9 +1,9 @@
+++
title = "Configure Application Load Balancer"
date = 2024
-weight = 5
+weight = 6
chapter = false
-pre = "5. "
+pre = "6. "
+++
#### Creating an Admininistrator Group
diff --git a/content/5-config-alb/_index.vi.md b/content/6-config-alb/_index.vi.md
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@@ -1,9 +1,9 @@
+++
title = "Cấu hình Application Load Balancer"
date = 2024
-weight = 5
+weight = 6
chapter = false
-pre = "5. "
+pre = "6. "
+++
#### Creating an Admininistrator Group
diff --git a/content/6-ecs-service/_index.vi.md b/content/6-ecs-service/_index.vi.md
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-+++
-title = "Tạo ECS Service"
-date = 2024
-weight = 6
-chapter = false
-pre = "6. "
-+++
-
-#### Creating an Admininistrator Group
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+++
title = "Create ECS Service"
date = 2024
-weight = 6
+weight = 7
chapter = false
-pre = "6. "
+pre = "7. "
+++
#### Creating an Admininistrator Group
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+++
-title = "Test Result"
+title = "Tạo ECS Service"
date = 2024
weight = 7
chapter = false
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+++
-title = "Clean up resources"
+title = "Test Result"
date = 2024
weight = 8
chapter = false
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+++
title = "Kết quả kiểm tra"
date = 2024
-weight = 7
+weight = 8
chapter = false
-pre = "7. "
+pre = "8. "
+++
#### Creating an Admininistrator Group
diff --git a/content/9-clean-up/_index.md b/content/9-clean-up/_index.md
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+title = "Clean up resources"
+date = 2024
+weight = 9
+chapter = false
+pre = "9. "
++++
+
+#### Creating an Admininistrator Group
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+++
title = "Dọn dẹp tài nguyên"
date = 2024
-weight = 8
+weight = 9
chapter = false
-pre = "8. "
+pre = "9. "
+++
#### Creating an Admininistrator Group
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