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Added Day 29.5 Folder with README.md and solution.md for New Task #359

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@Amitabh-DevOps Amitabh-DevOps commented Jan 20, 2025

  • Created a new folder Day29.5 in the 90DaysOfDevOps repository.
  • Added README.md to provide information about the task for Day 29.5 and its goals.
  • Included solution.md containing the solution to the task for Day 29.5.
  • This update contributes to the #90DaysOfDevOps challenge by documenting and solving the task.

Summary by CodeRabbit

  • Documentation

    • Added comprehensive guides on AWS CodePipeline and CI/CD processes.
    • Provided step-by-step instructions for setting up a CI/CD pipeline using AWS services.
    • Updated navigation link to point to the new bonus CI/CD section.
  • New Features

    • Introduced detailed documentation for implementing AWS CodePipeline.
    • Outlined the process for creating IAM users, EC2 instances, and configuring AWS services.

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  • 2024/day29.5-Bonus-cicd/solution.md (1 hunks)

Walkthrough

The changes introduce comprehensive documentation for implementing AWS CodePipeline, focusing on setting up a CI/CD pipeline for a Node.js application. The documentation covers detailed steps for creating IAM users, configuring AWS services like CodeBuild, CodeDeploy, and S3, and establishing an automated deployment workflow. Additionally, a navigation link was updated to point to this new bonus CI/CD section.

Changes

File Change Summary
2024/day29/README.md Updated "Next Day" navigation link to point to the new CI/CD bonus section
2024/day29.5-Bonus-cicd/README.md Added comprehensive guide on AWS CodePipeline, its components, and implementation strategies
2024/day29.5-Bonus-cicd/solution.md Detailed step-by-step instructions for setting up a Node.js application CI/CD pipeline using AWS services

Sequence Diagram

sequenceDiagram
    participant GitHub as GitHub Repository
    participant CodePipeline as AWS CodePipeline
    participant CodeBuild as AWS CodeBuild
    participant S3 as AWS S3
    participant CodeDeploy as AWS CodeDeploy
    participant EC2 as EC2 Instance

    GitHub ->> CodePipeline: Trigger pipeline on code push
    CodePipeline ->> CodeBuild: Start build process
    CodeBuild ->> S3: Store build artifacts
    CodePipeline ->> CodeDeploy: Deploy artifacts
    CodeDeploy ->> EC2: Update application
Loading

Poem

🚀 CI/CD Rabbit's Delight

Pipelines flowing, code takes flight,
AWS services, oh so bright!
Build, test, deploy with glee,
Automation sets my code free 🐰
Efficiency dancing, day and night!


Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media?

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Actionable comments posted: 5

🧹 Nitpick comments (2)
2024/day29.5-Bonus-cicd/README.md (1)

37-37: Consider using a more secure repository URL.

The repository URL is hardcoded and publicly accessible. Consider using environment variables or AWS Parameter Store for the repository URL.

2024/day29.5-Bonus-cicd/solution.md (1)

380-391: Improve container cleanup script.

The container cleanup script could be enhanced for better reliability.

Apply this diff to improve error handling:

 #!/bin/bash
-set -e
+set -euo pipefail
 
 # Stop any running Docker container
-containerid=$(docker ps -q)
-if [ -n "$containerid" ]; then
-  docker stop $containerid && docker rm -f $containerid
-else
-  echo "No running containers to remove."
-fi
+docker ps -q | xargs -r docker stop
+docker ps -a -q | xargs -r docker rm -f
📜 Review details

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📥 Commits

Reviewing files that changed from the base of the PR and between 2071066 and 93b2535.

⛔ Files ignored due to path filters (25)
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📒 Files selected for processing (3)
  • 2024/day29.5-Bonus-cicd/README.md (1 hunks)
  • 2024/day29.5-Bonus-cicd/solution.md (1 hunks)
  • 2024/day29/README.md (1 hunks)
✅ Files skipped from review due to trivial changes (1)
  • 2024/day29/README.md
🧰 Additional context used
🪛 LanguageTool
2024/day29.5-Bonus-cicd/README.md

[grammar] ~3-~3: This phrase is duplicated. You should probably use “AWS CodePipeline” only once.
Context: ...of AWS CodePipeline ## Introduction to AWS CodePipeline AWS CodePipeline is a fully managed continuous integrati...

(PHRASE_REPETITION)


[grammar] ~102-~102: This sentence should probably be started with a verb instead of the noun ‘Setup’. If not, consider inserting a comma for better clarity.
Context: ...yml`) to the S3 bucket. --- #### 5. Setup the Deploy Stage with AWS CodeDeploy ...

(SENT_START_NN_DT)


[grammar] ~142-~142: A determiner may be missing.
Context: ...st Practices** - Use IAM roles with least privilege for all AWS services. - Store...

(THE_SUPERLATIVE)

2024/day29.5-Bonus-cicd/solution.md

[style] ~21-~21: Consider using “who” when you are referring to a person instead of an object.
Context: ... In this step, we'll create an IAM user that allows us to interact with AWS services...

(THAT_WHO)


[uncategorized] ~33-~33: Loose punctuation mark.
Context: ...: * AWSCodePipelineFullAccess: Full access to AWS CodePipeline. ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~35-~35: Loose punctuation mark.
Context: ... * AWSCodeDeployFullAccess: Full access to AWS CodeDeploy. ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~37-~37: Loose punctuation mark.
Context: ...loy. * AmazonS3FullAccess: Full access to S3 buckets. ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~39-~39: Loose punctuation mark.
Context: ... * AWSCodeBuildAdminAccess: Full access to AWS CodeBuild. ...

(UNLIKELY_OPENING_PUNCTUATION)


[grammar] ~105-~105: The singular determiner ‘this’ may not agree with the plural noun ‘permissions’. Did you mean “these”?
Context: ...any name for EC2 instance ,which having this permissions : * `Amazo...

(THIS_NNS)


[uncategorized] ~107-~107: Loose punctuation mark.
Context: ... * AmazonEC2RoleforAWSCodeDeploy: Necessary for EC2 to interact with AWS ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~109-~109: Loose punctuation mark.
Context: ... * AmazonS3FullAccess: Full access to S3 for artifact storage....

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~111-~111: Loose punctuation mark.
Context: ... * AmazonEC2FullAccess: Full access to EC2 for managing the ins...

(UNLIKELY_OPENING_PUNCTUATION)


[style] ~121-~121: You’ve already used the word ‘also’ once in your sentence, so using it again may be redundant.
Context: ... restart 7. Install docker also and setup with that also. bash ...

(REDUNDANT_FILLER)


[misspelling] ~219-~219: Use “a” instead of ‘an’ if the following word doesn’t start with a vowel sound, e.g. ‘a sentence’, ‘a university’.
Context: ...e role**, select the option to create an new role and create that Role. 6...

(EN_A_VS_AN)


[grammar] ~221-~221: The pronoun ‘it’ requires a third-person verb or a past tense.
Context: ...d use it to use env of buildspec it need that permissions. ![ssm-permis...

(HE_NEED)


[uncategorized] ~235-~235: Loose punctuation mark.
Context: ...our repository. 10. buildspec.yml: ```yaml version: 0.2 ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~562-~562: It appears that a hyphen is missing (if ‘auto’ is not used in the context of ‘cars’).
Context: .../image-20.png) 2. Checking auto Trigger : ![webhook-trigger](i...

(AUTO_HYPHEN)

🪛 Markdownlint (0.37.0)
2024/day29.5-Bonus-cicd/README.md

6-6: Punctuation: ':'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)


41-41: Punctuation: ':'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)


155-155: null
Emphasis used instead of a heading

(MD036, no-emphasis-as-heading)

2024/day29.5-Bonus-cicd/solution.md

361-361: Expected: 2; Actual: 4
Unordered list indentation

(MD007, ul-indent)


363-363: Expected: 2; Actual: 4
Unordered list indentation

(MD007, ul-indent)


298-298: Punctuation: ':'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)

🔇 Additional comments (1)
2024/day29.5-Bonus-cicd/README.md (1)

142-144: LGTM! Good security practices mentioned.

The security best practices section correctly emphasizes:

  • Using IAM roles with least privilege
  • Storing sensitive data in AWS Secrets Manager
  • Enabling pipeline logging
🧰 Tools
🪛 LanguageTool

[grammar] ~142-~142: A determiner may be missing.
Context: ...st Practices** - Use IAM roles with least privilege for all AWS services. - Store...

(THE_SUPERLATIVE)

Comment on lines +109 to +124
```yaml
version: 0.0
os: linux
files:
- source: /build.zip
destination: /var/www/html
hooks:
BeforeInstall:
- location: scripts/install_dependencies.sh
timeout: 300
runas: root
AfterInstall:
- location: scripts/restart_server.sh
timeout: 300
runas: root
```
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🛠️ Refactor suggestion

Improve security in the appspec.yml sample.

The sample appspec.yml file has potential security concerns:

  1. Running scripts as root is not a security best practice.
  2. The timeout of 300 seconds might be excessive for simple operations.

Apply this diff to enhance security:

 hooks:
   BeforeInstall:
     - location: scripts/install_dependencies.sh
-      timeout: 300
-      runas: root
+      timeout: 60
+      runas: ubuntu
   AfterInstall:
     - location: scripts/restart_server.sh
-      timeout: 300
-      runas: root
+      timeout: 60
+      runas: ubuntu

Comment on lines +74 to +96
2. **Sample `buildspec.yml`**:
```yaml
version: 0.2
phases:
install:
commands:
- echo Installing dependencies...
- npm install
build:
commands:
- echo Building the application...
- npm run build
post_build:
commands:
- echo Packaging and uploading artifacts to S3...
- zip -r build.zip *
- aws s3 cp build.zip s3://<your-s3-bucket-name>/build.zip
artifacts:
files:
- appspec.yml
- build.zip
discard-paths: yes
```
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🛠️ Refactor suggestion

Enhance security in the buildspec.yml sample.

The sample buildspec.yml file could be improved for better security and maintainability:

  1. The discard-paths: yes setting might cause file collisions.
  2. No explicit version is specified for the S3 artifact.

Apply this diff to improve the configuration:

 artifacts:
   files:
     - appspec.yml
     - build.zip
-  discard-paths: yes
+  discard-paths: no
+  name: build-artifact-$(date +%Y-%m-%d-%H-%M-%S)
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
2. **Sample `buildspec.yml`**:
```yaml
version: 0.2
phases:
install:
commands:
- echo Installing dependencies...
- npm install
build:
commands:
- echo Building the application...
- npm run build
post_build:
commands:
- echo Packaging and uploading artifacts to S3...
- zip -r build.zip *
- aws s3 cp build.zip s3://<your-s3-bucket-name>/build.zip
artifacts:
files:
- appspec.yml
- build.zip
discard-paths: yes
```
2. **Sample `buildspec.yml`**:

Comment on lines +501 to +507
* Modifying Inbound rule of Instance to see WebPage on port `8000`:

![inbound-rule](images/image-14.png)

* Output image of application :

![first-o/p-image](images/image-15.png)
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⚠️ Potential issue

Security concern: Port exposure.

Opening port 8000 to all traffic (0.0.0.0/0) in the security group is not a security best practice.

Consider:

  1. Using a load balancer with HTTPS termination
  2. Restricting access to specific IP ranges
  3. Implementing WAF rules

phases:
install:
runtime-versions:
nodejs: 12.2.0
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⚠️ Potential issue

Update Node.js version for security.

The specified Node.js version (12.2.0) is outdated and has known security vulnerabilities.

Apply this diff to use a more recent LTS version:

-          nodejs: 12.2.0
+          nodejs: 18.x
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
nodejs: 12.2.0
nodejs: 18.x

Comment on lines 367 to 376
```bash
#!/bin/bash
set -e

# Pull the latest Docker image from Docker Hub
docker pull amitabhdevops/aws-node-todo-app-cicd:v1

# Run the Docker image as a container
docker run -d -p 8000:8000 amitabhdevops/aws-node-todo-app-cicd:v1
```
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🛠️ Refactor suggestion

Enhance security in container startup script.

The container startup script has hardcoded values and lacks error handling.

Apply this diff to improve the script:

 #!/bin/bash
-set -e
+set -euo pipefail
+
+# Load environment variables from AWS Parameter Store
+IMAGE_NAME=$(aws ssm get-parameter --name /myapp/docker-image/name --with-decryption --query Parameter.Value --output text)
+IMAGE_TAG=$(aws ssm get-parameter --name /myapp/docker-image/tag --with-decryption --query Parameter.Value --output text)
 
 # Pull the latest Docker image from Docker Hub
-docker pull amitabhdevops/aws-node-todo-app-cicd:v1
+docker pull "${IMAGE_NAME}:${IMAGE_TAG}"
 
 # Run the Docker image as a container
-docker run -d -p 8000:8000 amitabhdevops/aws-node-todo-app-cicd:v1
+docker run -d -p 8000:8000 "${IMAGE_NAME}:${IMAGE_TAG}"

Committable suggestion skipped: line range outside the PR's diff.

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Actionable comments posted: 2

🧹 Nitpick comments (3)
2024/day29.5-Bonus-cicd/solution.md (3)

105-105: Fix grammatical issues in the documentation.

There are several grammatical errors that should be corrected:

-create a IAM role with any name for EC2 instance ,which having this permissions
+create an IAM role with any name for the EC2 instance, which has these permissions

-select the option to **create an new role**
+select the option to **create a new role**

-it need that permissions
+it needs those permissions

Also applies to: 219-219, 221-221

🧰 Tools
🪛 LanguageTool

[grammar] ~105-~105: The singular determiner ‘this’ may not agree with the plural noun ‘permissions’. Did you mean “these”?
Context: ...any name for EC2 instance ,which having this permissions : * `Amazo...

(THIS_NNS)


519-522: Add error handling to Docker commands.

The Docker commands lack error handling and logging.

-       docker pull <latest-image-name>
+       if ! docker pull <latest-image-name>; then
+         echo "Failed to pull Docker image" >&2
+         exit 1
+       fi
+       echo "Successfully pulled latest image"
🧰 Tools
🪛 Markdownlint (0.37.0)

519-519: Expected: asterisk; Actual: dash
Unordered list style

(MD004, ul-style)


550-553: Add monitoring and observability recommendations.

The conclusion should include guidance on monitoring and observability.

Consider adding:

  1. CloudWatch metrics and alarms for pipeline status
  2. X-Ray tracing for request monitoring
  3. CloudWatch Logs Insights for log analysis
  4. SNS notifications for pipeline failures
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 93b2535 and 28b880d.

📒 Files selected for processing (1)
  • 2024/day29.5-Bonus-cicd/solution.md (1 hunks)
🧰 Additional context used
🪛 LanguageTool
2024/day29.5-Bonus-cicd/solution.md

[style] ~21-~21: Consider using “who” when you are referring to a person instead of an object.
Context: ... In this step, we'll create an IAM user that allows us to interact with AWS services...

(THAT_WHO)


[uncategorized] ~33-~33: Loose punctuation mark.
Context: ...: * AWSCodePipelineFullAccess: Full access to AWS CodePipeline. ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~35-~35: Loose punctuation mark.
Context: ... * AWSCodeDeployFullAccess: Full access to AWS CodeDeploy. ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~37-~37: Loose punctuation mark.
Context: ...loy. * AmazonS3FullAccess: Full access to S3 buckets. ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~39-~39: Loose punctuation mark.
Context: ... * AWSCodeBuildAdminAccess: Full access to AWS CodeBuild. ...

(UNLIKELY_OPENING_PUNCTUATION)


[grammar] ~105-~105: The singular determiner ‘this’ may not agree with the plural noun ‘permissions’. Did you mean “these”?
Context: ...any name for EC2 instance ,which having this permissions : * `Amazo...

(THIS_NNS)


[uncategorized] ~107-~107: Loose punctuation mark.
Context: ... * AmazonEC2RoleforAWSCodeDeploy: Necessary for EC2 to interact with AWS ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~109-~109: Loose punctuation mark.
Context: ... * AmazonS3FullAccess: Full access to S3 for artifact storage....

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~111-~111: Loose punctuation mark.
Context: ... * AmazonEC2FullAccess: Full access to EC2 for managing the ins...

(UNLIKELY_OPENING_PUNCTUATION)


[style] ~121-~121: You’ve already used the word ‘also’ once in your sentence, so using it again may be redundant.
Context: ... restart 7. Install docker also and setup with that also. bash ...

(REDUNDANT_FILLER)


[misspelling] ~219-~219: Use “a” instead of ‘an’ if the following word doesn’t start with a vowel sound, e.g. ‘a sentence’, ‘a university’.
Context: ...e role**, select the option to create an new role and create that Role. 6...

(EN_A_VS_AN)


[grammar] ~221-~221: The pronoun ‘it’ requires a third-person verb or a past tense.
Context: ...d use it to use env of buildspec it need that permissions. ![ssm-permis...

(HE_NEED)


[uncategorized] ~235-~235: Loose punctuation mark.
Context: ...our repository. 10. buildspec.yml: > Use code from repository ...

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[uncategorized] ~467-~467: It appears that a hyphen is missing (if ‘auto’ is not used in the context of ‘cars’).
Context: .../image-20.png) 2. Checking auto Trigger : ![webhook-trigger](i...

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🪛 Markdownlint (0.37.0)
2024/day29.5-Bonus-cicd/solution.md

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🔇 Additional comments (1)
2024/day29.5-Bonus-cicd/solution.md (1)

406-412: Security concern: Restrict network access.

Opening port 8000 to all traffic (0.0.0.0/0) is not secure. Consider:

  1. Using Application Load Balancer with HTTPS termination
  2. Restricting access to specific IP ranges
  3. Implementing AWS WAF rules

Comment on lines +33 to +41
* `AWSCodePipelineFullAccess`: Full access to AWS CodePipeline.

* `AWSCodeDeployFullAccess`: Full access to AWS CodeDeploy.

* `AmazonS3FullAccess`: Full access to S3 buckets.

* `AWSCodeBuildAdminAccess`: Full access to AWS CodeBuild.

* or else provide `AdministratorAccess` then no need to provide above access.
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⚠️ Potential issue

Implement the principle of least privilege for IAM permissions.

Instead of providing full access policies or AdministratorAccess, consider creating custom IAM policies with only the required permissions for each service.

Replace the full access policies with more restrictive ones:

-    * `AWSCodePipelineFullAccess`
-    * `AWSCodeDeployFullAccess`
-    * `AmazonS3FullAccess`
-    * `AWSCodeBuildAdminAccess`
-    * or else provide `AdministratorAccess`
+    * Create custom policies with specific permissions:
+      * CodePipeline: StartPipelineExecution, GetPipelineState
+      * CodeDeploy: CreateDeployment, GetDeployment
+      * S3: GetObject, PutObject (specific to your artifact bucket)
+      * CodeBuild: StartBuild, BatchGetBuilds
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
* `AWSCodePipelineFullAccess`: Full access to AWS CodePipeline.
* `AWSCodeDeployFullAccess`: Full access to AWS CodeDeploy.
* `AmazonS3FullAccess`: Full access to S3 buckets.
* `AWSCodeBuildAdminAccess`: Full access to AWS CodeBuild.
* or else provide `AdministratorAccess` then no need to provide above access.
* Create custom policies with specific permissions:
* CodePipeline: StartPipelineExecution, GetPipelineState
* CodeDeploy: CreateDeployment, GetDeployment
* S3: GetObject, PutObject (specific to your artifact bucket)
* CodeBuild: StartBuild, BatchGetBuilds
🧰 Tools
🪛 LanguageTool

[uncategorized] ~33-~33: Loose punctuation mark.
Context: ...: * AWSCodePipelineFullAccess: Full access to AWS CodePipeline. ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~35-~35: Loose punctuation mark.
Context: ... * AWSCodeDeployFullAccess: Full access to AWS CodeDeploy. ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~37-~37: Loose punctuation mark.
Context: ...loy. * AmazonS3FullAccess: Full access to S3 buckets. ...

(UNLIKELY_OPENING_PUNCTUATION)


[uncategorized] ~39-~39: Loose punctuation mark.
Context: ... * AWSCodeBuildAdminAccess: Full access to AWS CodeBuild. ...

(UNLIKELY_OPENING_PUNCTUATION)

Comment on lines +124 to +127
sudo apt install docker.io -y

sudo usermod -aG docker && newgrp docker
```
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🛠️ Refactor suggestion

Enhance Docker security configuration.

The current Docker setup lacks security configurations.

Add these security measures:

 sudo apt install docker.io -y
 sudo usermod -aG docker && newgrp docker
+# Configure Docker daemon security options
+sudo tee /etc/docker/daemon.json <<EOF
+{
+  "no-new-privileges": true,
+  "userns-remap": "default",
+  "live-restore": true,
+  "userland-proxy": false,
+  "log-driver": "json-file",
+  "log-opts": {
+    "max-size": "10m",
+    "max-file": "3"
+  }
+}
+EOF
+sudo systemctl restart docker
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
sudo apt install docker.io -y
sudo usermod -aG docker && newgrp docker
```
sudo apt install docker.io -y
sudo usermod -aG docker && newgrp docker
# Configure Docker daemon security options
sudo tee /etc/docker/daemon.json <<EOF
{
"no-new-privileges": true,
"userns-remap": "default",
"live-restore": true,
"userland-proxy": false,
"log-driver": "json-file",
"log-opts": {
"max-size": "10m",
"max-file": "3"
}
}
EOF
sudo systemctl restart docker

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