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compose.yaml
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compose.yaml
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---
# Networks top-level element reference: https://docs.docker.com/compose/compose-file/06-networks/
networks:
backend:
frontend:
# Service top-level element reference: https://docs.docker.com/compose/compose-file/05-services/
services:
nginx:
depends_on:
demoapp-frontend:
condition: service_healthy # healthy status is indicated by `healthcheck` keyword
build:
context: ../../nginx
dockerfile: Containerfile
ports:
- "8080:80" # Forwards container port 80 to host port 8080. URL: http://localhost:8080/
networks:
- backend # Connect to `backend` network
- frontend # Connect to `frontend` network
demoapp-frontend:
depends_on:
demoapp-backend:
condition: service_healthy # healthy status is indicated by `healthcheck` keyword
image: ${DEMOAPP_FRONTEND_IMAGE} # use image specified in .env file
# Build image from Containerfile
# build:
# context: ../../
# dockerfile: Containerfile
environment:
REACT_APP_DEMOAPP_BACKEND_URL: "${DEMOAPP_BACKEND_URL}" # Override default demoapp-backend url
healthcheck:
test: curl --fail http://localhost:8080/ # command for testing health
# Specifying durations: https://docs.docker.com/compose/compose-file/11-extension/#specifying-durations
interval: 5s # specifies the time duration or interval in which the healthcheck process will execute
timeout: 1s # defines the time duration to wait for a healthcheck
retries: 10 # is used to define the number of tries to implement the health check after failure
# Red Hat runtime image already exposes port 8080, thus `expose` keyword can be omitted
# expose:
# - "8080"
restart: always
networks:
- backend # Connect to `backend` network
- frontend # Connect to `frontend` network
demoapp-backend:
depends_on:
mysql:
condition: service_healthy # healthy status is indicated by `healthcheck` keyword
image: ${DEMOAPP_BACKEND_IMAGE} # use image specified in .env file
# Build image from Containerfile
# build:
# context: .
# dockerfile: Containerfile.multistage
environment:
# Externalized Spring Configuration: https://docs.spring.io/spring-boot/docs/1.5.6.RELEASE/reference/html/boot-features-external-config.html
SPRING_DATASOURCE_USERNAME: root
SPRING_DATASOURCE_PASSWORD: ${MYSQL_ROOT_PASSWORD}
healthcheck:
# Check Spring Boot Actuator
test: curl --fail http://localhost:8080/actuator/health # command for testing health
# Specifying durations: https://docs.docker.com/compose/compose-file/11-extension/#specifying-durations
interval: 5s # specifies the time duration or interval in which the healthcheck process will execute
timeout: 1s # defines the time duration to wait for a healthcheck
retries: 10 # is used to define the number of tries to implement the health check after failure
# Red Hat runtime image already exposes port 8080, thus `expose` keyword can be omitted
# expose:
# - "8080"
restart: always
networks:
- backend # Connect to `backend` network
- frontend # Connect to `frontend` network
mysql: # Service name is also used as hostname when connecting from other containers
image: ${MYSQL_IMAGE} # use image specified in .env file
# Docker Hub mysql image already exposes port 3306, thus `expose` keyword can be omitted
# expose:
# - "3306"
environment:
MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
MYSQL_DATABASE: ${MYSQL_DATABASE}
MYSQL_USER: ${MYSQL_USER}
MYSQL_PASSWORD: ${MYSQL_PASSWORD}
healthcheck:
# Login to mysql demoapp db
test: mysql --host=localhost --user=root --password=$$MYSQL_ROOT_PASSWORD demoapp # command for testing health
# Specifying durations: https://docs.docker.com/compose/compose-file/11-extension/#specifying-durations
interval: 5s # specifies the time duration or interval in which the healthcheck process will execute
timeout: 1s # defines the time duration to wait for a healthcheck
retries: 10 # is used to define the number of tries to implement the health check after failure
restart: always
volumes:
- type: volume
source: db-data
target: /var/lib/mysql
networks:
- backend # Connect to `backend` network
# Volumes top-level element reference: https://docs.docker.com/compose/compose-file/07-volumes/
volumes:
db-data: {}