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docker-compose.yml
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docker-compose.yml
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version: '3'
services:
web:
build:
context: .
dockerfile: Dockerfile
image: letters-api
container_name: "api"
restart: "always"
environment:
POSTGRES_HOSTNAME: db
HONEYCOMB_API_KEY: ${HONEYCOMB_API_KEY}
OTEL_SERVICE_NAME: ${OTEL_SERVICE_NAME}
depends_on:
- "db"
networks:
- api-network
db:
image: "postgres"
container_name: "letters_db"
restart: "always"
environment:
POSTGRES_DB: words
POSTGRES_USER: api
POSTGRES_PASSWORD: letters
PGDATABASE: words # pg vars are for psql
PGUSER: api
PGHOST: db
PGPASSWORD: letters
volumes:
- pgVolume:/var/lib/postgresql/data
networks:
api-network:
# The aliases can be used as host names when creating connections
aliases:
- pgLettersApi
# Due to the way Docker works, you can't just refer to localhost. The most sensible way to do this
# seems to be create a network across the containers.
networks:
api-network:
driver: bridge
# This creates a named volume for persisting data in the postgres db
volumes:
pgVolume: