CouchDB not running on Docker image - docker

Question

I am trying to learn server-side swift and am having success deploying via Heroku as a Docker container but am struggling to get my database working when using couchdb with it. The database runs fine running locally but I can't seem to get it to run in the Docker container.
My current Dockerfile is as follows:
FROM ibmcom/swift-ubuntu:5.0.2
WORKDIR /ServerSideSwift
COPY . .
RUN swift build -c release
CMD .build/release/ServerSideSwift
So to add couchdb to this I tried to create a docker-compose.yml that looks like this:
version: "3.7"
services:
web:
build:
context: .
dockerfile: Dockerfile
ports:
- "8080:8080"
links:
- db
db:
image: couchdb
ports:
- "5984:5984"
Building the image works fine and running works well too but when it tried to create a new database(in swift) i get the errors i put in the swift code that show couchdb isnt running and therefore cant create any new databases.
Can anyone see where i am going wrong?
Update 3: my current docker-compose.yml:
version: "3.7"
networks:
app-net:
driver: bridge
services:
app:
build: .
ports:
- "8080:8080"
networks:
- app-net
db:
image: couchdb
ports:
- "5984:5984"
environment:
COUCHDB_USER: Test
COUCHDB_PASSWORD: test
networks:
- app-net

Answer 1

First, change your connection string from "localhost" to "DB" to use Docker DNS. Then change the connection param to not use encryption.

Answer 2

CouchDB is accessible by default on localhost which will be localhost
inside the container since you are using docker.
you can try exec inside the CouchDB container and run curl
localhost:5984 and it should work.
If you want to allow certain IPs to connect to your CouchDB server then you should use bind_address config_docs.
To allow all IPs use bind_address = 0.0.0.0 in local.ini.
bind_address
Defines the IP address by which CouchDB will be accessible.
[httpd]
bind_address = 127.0.0.1
To let CouchDB listen any available IP address, just setup 0.0.0.0 value:
[httpd]
bind_address = 0.0.0.0
Add this config in your custom local.ini file and mount it inside the couchdb container in this path /opt/couchdb/etc/.
version: "3.7"
networks:
app-net:
driver: bridge
services:
app:
build: .
ports:
- "8080:8080"
networks:
- app-net
db:
image: couchdb
ports:
- "5984:5984"
environment:
COUCHDB_USER: Test
COUCHDB_PASSWORD: test
volumes:
- path_to_local.ini:/opt/couchdb/etc/
networks:
- app-net