connect hasura to existing postgresql - postgresql

Question

Docker desktop (windows10) running in WSL2
postgresql running in WSL2
pgadmin running in windows10
I can connect with pgadmin (local machine) to postgresql (localmachine WSL2) with the default settings
(localhost:5432)
postgres.conf
listen_addresses = '*'
port = 5432
When I create a docker container it will not connect to my local postgresql.
cmd used in WSL2
docker run -d --net=host \
-e HASURA_GRAPHQL_DATABASE_URL=postgres://postgres:password#localhost:5432/mydb \
-e HASURA_GRAPHQL_ENABLE_CONSOLE=true \
-e HASURA_GRAPHQL_DEV_MODE=true \
hasura/graphql-engine:v1.3.3
error
"could not connect to server: Connection refused\n\tIs the server running on host \"localhost\" (127.0.0.1) and accepting\n\tTCP/IP connections on port 5432?\n","path":"$","error":"connection error","code":"postgres-error"}
What am I missing?

Answer 1

turned out I had to use this:
docker run -d -p 8080:8080
-e HASURA_GRAPHQL_DATABASE_URL=postgres://postgres:password#host.docker.internal:5432/mydb \
-e HASURA_GRAPHQL_ENABLE_CONSOLE=true \
-e HASURA_GRAPHQL_DEV_MODE=true \
hasura/graphql-engine:v1.3.3
I thought "host.docker.internal" was only ment for Mac. Seems to work with Docker Desktop Windows10(WSL2) too.

Answer 2

here is a working solution for me, important is hostname
version: "3.8"
services:
postgres:
restart: always
image: postgres
container_name: postgres
hostname: postgres
#depends_on:
#sql-server:
#condition: service_healthy
volumes:
- pg_data:/var/lib/postgresql/data
environment:
POSTGRES_USER: postgres
POSTGRES_PASSWORD: postgrespassword
networks:
- backend
sql-api:
restart: always
container_name: api
image: hasura/graphql-engine:v2.2.0
ports:
- 8055:8080
depends_on:
- "postgres"
hostname: sqlapi
environment:
## postgres database to store Hasura metadata
HASURA_GRAPHQL_METADATA_DATABASE_URL: postgres://postgres:postgrespassword#postgres:5432/postgres
## enable the console served by server
HASURA_GRAPHQL_ENABLE_CONSOLE: "true" # set to "false" to disable console
## enable debugging mode. It is recommended to disable this in production
HASURA_GRAPHQL_DEV_MODE: "true"
HASURA_GRAPHQL_ENABLED_LOG_TYPES: startup, http-log, webhook-log, websocket-log, query-log
## uncomment next line to set an admin secret
# HASURA_GRAPHQL_ADMIN_SECRET: myadminsecretkey
networks:
- backend
networks:
backend:
driver: bridge
volumes:
pg_data: