Skills

Skill 110 of 200

Create Spring Boot Kotlin Project

Create Spring Boot Kotlin Project Skeleton

1 minute · 244 words · 7 sections

Install

$ npx skills add github/awesome-copilot --skill create-spring-boot-kotlin-project

$ npx skills add github/awesome-copilot

» /plugin marketplace add github/awesome-copilot

The first command installs just this skill, by the name in its SKILL.md; the second installs the whole repository.

Create Spring Boot Kotlin project prompt

Please make sure you have the following software installed on your system:
- Java 21
- Docker
- Docker Compose
If you need to custom the project name, please change the artifactId and the packageName in download-spring-boot-project-template
If you need to update the Spring Boot version, please change the bootVersion in download-spring-boot-project-template

Check Java version

Run following command in terminal and check the version of Java

java -version

Download Spring Boot project template

Run following command in terminal to download a Spring Boot project template

curl https://start.spring.io/starter.zip \
  -d artifactId=${input:projectName:demo-kotlin} \
  -d bootVersion=3.4.5 \
  -d dependencies=configuration-processor,webflux,data-r2dbc,postgresql,data-redis-reactive,data-mongodb-reactive,validation,cache,testcontainers \
  -d javaVersion=21 \
  -d language=kotlin \
  -d packageName=com.example \
  -d packaging=jar \
  -d type=gradle-project-kotlin \
  -o starter.zip

Unzip the downloaded file

Run following command in terminal to unzip the downloaded file

unzip starter.zip -d ./${input:projectName:demo-kotlin}

Remove the downloaded zip file

Run following command in terminal to delete the downloaded zip file

rm -f starter.zip

Unzip the downloaded file

Run following command in terminal to unzip the downloaded file

unzip starter.zip -d ./${input:projectName:demo-kotlin}

Add additional dependencies

Insert springdoc-openapi-starter-webmvc-ui and archunit-junit5 dependency into build.gradle.kts file

dependencies {
  implementation("org.springdoc:springdoc-openapi-starter-webflux-ui:2.8.6")
  testImplementation("com.tngtech.archunit:archunit-junit5:1.2.1")
}

Insert SpringDoc configurations into application.properties file

# SpringDoc configurations
springdoc.swagger-ui.doc-expansion=none
springdoc.swagger-ui.operations-sorter=alpha
springdoc.swagger-ui.tags-sorter=alpha

Insert Redis configurations into application.properties file

# Redis configurations
spring.data.redis.host=localhost
spring.data.redis.port=6379
spring.data.redis.password=rootroot

Insert R2DBC configurations into application.properties file

# R2DBC configurations
spring.r2dbc.url=r2dbc:postgresql://localhost:5432/postgres
spring.r2dbc.username=postgres
spring.r2dbc.password=rootroot

spring.sql.init.mode=always
spring.sql.init.platform=postgres
spring.sql.init.continue-on-error=true

Insert MongoDB configurations into application.properties file

# MongoDB configurations
spring.data.mongodb.host=localhost
spring.data.mongodb.port=27017
spring.data.mongodb.authentication-database=admin
spring.data.mongodb.username=root
spring.data.mongodb.password=rootroot
spring.data.mongodb.database=test

Create docker-compose.yaml at project root and add following services: redis:6, postgresql:17 and mongo:8.
- redis service should have
  - password rootroot
  - mapping port 6379 to 6379
  - mounting volume ./redis_data to /data
- postgresql service should have
  - password rootroot
  - mapping port 5432 to 5432
  - mounting volume ./postgres_data to /var/lib/postgresql/data
- mongo service should have
  - initdb root username root
  - initdb root password rootroot
  - mapping port 27017 to 27017
  - mounting volume ./mongo_data to /data/db
Insert redis_data, postgres_data and mongo_data directories in .gitignore file
Run gradle clean test command to check if the project is working

./gradlew clean test

(Optional) docker-compose up -d to start the services, ./gradlew spring-boot:run to run the Spring Boot project, docker-compose rm -sf to stop the services.

Let’s do this step by step.

Colophon for this issue

Colophon

How this issue was made

Source

github.com/github/awesome-copilot, branch main, last pushed 24 September 2026.

Licence

MIT — the text of every skill is reproduced unmodified, frontmatter included, under the upstream licence.

Discovery

200 skills found by walking the repository tree for SKILL.md, not by matching a directory convention. 2 distinct layouts observed: .github/skills/*/SKILL.md, skills/*/SKILL.md.

Authorship

3 of 200 skills are installed into the repository rather than published from it. They are shelved in the closing “Credited skills” part and remain the work of their own authors. A skill counts as credited when its only copy lives under one agent’s dot directory; visible directories, per-agent mirror sets, and skills installable from this repository on skills.sh all count as published.

Issue colours

Resolved from a curated brand profile — hue 295°, chroma 0.190. Two accent tones are generated per issue and each is proven against its own ground before it ships: a single accent that passes AA on both light and dark paper is arithmetically impossible.

Heading repairs

1 repair applied to this skill so the document has one h1 and no skipped levels:

Shifted “7 headings” from h1 to h2 so the skill title is the only h1.

Spec compliance

Every skill satisfies the Agent Skills specification’s frontmatter rules.

Images

Images inside a skill come from the upstream repository. Where the author gave no alternative text we mark the image decorative rather than inventing a description — a plausible caption we made up is worse than none for the reader who depends on it.

Marketplace

A plugin manifest is published at .github/plugin/marketplace.json by GitHub, declaring 162 plugins. It is read for editorial metadata only — never as the skill index, which is always the repository tree.

Signal

Install counts come from skills.sh. They measure downloads, not quality, and an unranked repository is not an unread one.

Agent surfaces

The whole issue is available as one markdown document at /github/awesome-copilot.md, and each skill at its own .md URL.

Publication

Set by Skills Docs from the source repository. Body text is Literata at the reader’s chosen size and measure; code is Geist Mono. Nothing on this page was written by us except this paragraph.

Create Spring Boot Kotlin project prompt

Please make sure you have the following software installed on your system:
- Java 21
- Docker
- Docker Compose
If you need to custom the project name, please change the artifactId and the packageName in download-spring-boot-project-template
If you need to update the Spring Boot version, please change the bootVersion in download-spring-boot-project-template

Check Java version

Run following command in terminal and check the version of Java

java -version

Download Spring Boot project template

Run following command in terminal to download a Spring Boot project template

curl https://start.spring.io/starter.zip \
  -d artifactId=${input:projectName:demo-kotlin} \
  -d bootVersion=3.4.5 \
  -d dependencies=configuration-processor,webflux,data-r2dbc,postgresql,data-redis-reactive,data-mongodb-reactive,validation,cache,testcontainers \
  -d javaVersion=21 \
  -d language=kotlin \
  -d packageName=com.example \
  -d packaging=jar \
  -d type=gradle-project-kotlin \
  -o starter.zip

Unzip the downloaded file

Run following command in terminal to unzip the downloaded file

unzip starter.zip -d ./${input:projectName:demo-kotlin}

Remove the downloaded zip file

Run following command in terminal to delete the downloaded zip file

rm -f starter.zip

Unzip the downloaded file

Run following command in terminal to unzip the downloaded file

unzip starter.zip -d ./${input:projectName:demo-kotlin}

Add additional dependencies

Insert springdoc-openapi-starter-webmvc-ui and archunit-junit5 dependency into build.gradle.kts file

dependencies {
  implementation("org.springdoc:springdoc-openapi-starter-webflux-ui:2.8.6")
  testImplementation("com.tngtech.archunit:archunit-junit5:1.2.1")
}

Insert SpringDoc configurations into application.properties file

# SpringDoc configurations
springdoc.swagger-ui.doc-expansion=none
springdoc.swagger-ui.operations-sorter=alpha
springdoc.swagger-ui.tags-sorter=alpha

Insert Redis configurations into application.properties file

# Redis configurations
spring.data.redis.host=localhost
spring.data.redis.port=6379
spring.data.redis.password=rootroot

Insert R2DBC configurations into application.properties file

# R2DBC configurations
spring.r2dbc.url=r2dbc:postgresql://localhost:5432/postgres
spring.r2dbc.username=postgres
spring.r2dbc.password=rootroot

spring.sql.init.mode=always
spring.sql.init.platform=postgres
spring.sql.init.continue-on-error=true

Insert MongoDB configurations into application.properties file

# MongoDB configurations
spring.data.mongodb.host=localhost
spring.data.mongodb.port=27017
spring.data.mongodb.authentication-database=admin
spring.data.mongodb.username=root
spring.data.mongodb.password=rootroot
spring.data.mongodb.database=test

Create docker-compose.yaml at project root and add following services: redis:6, postgresql:17 and mongo:8.
- redis service should have
  - password rootroot
  - mapping port 6379 to 6379
  - mounting volume ./redis_data to /data
- postgresql service should have
  - password rootroot
  - mapping port 5432 to 5432
  - mounting volume ./postgres_data to /var/lib/postgresql/data
- mongo service should have
  - initdb root username root
  - initdb root password rootroot
  - mapping port 27017 to 27017
  - mounting volume ./mongo_data to /data/db
Insert redis_data, postgres_data and mongo_data directories in .gitignore file
Run gradle clean test command to check if the project is working

./gradlew clean test

(Optional) docker-compose up -d to start the services, ./gradlew spring-boot:run to run the Spring Boot project, docker-compose rm -sf to stop the services.

Let’s do this step by step.