Docker: connection between golang webapp and postgres server refused

Question

I can't connect my Postgres container with my golang webapp container.

i got following error:

panic: dial tcp [::1]:5432: getsockopt: connection refused

My docker compose file:

Any idea how i can fix that?

In your api containers environment declaration, try DSN: "db://postgres:postgres@db:5432/postgres?sslmode=disable". This will connect directly to the db container. 127.0.0.1 is the localhost inside your go container, not your host machines localhost. — fishi0x01
– fishi0x01, Commented Feb 2, 2017 at 13:13
try to replace this one ports: - "127.0.0.1:5432:5432" to 5432:5432 — Dezigo
– Dezigo, Commented Feb 2, 2017 at 13:17
i have changed 127.0.0.1:5432 to :5432 but now i getting this panic: dial tcp [::1]:5432: getsockopt: connection refused — Donutloop
– Donutloop, Commented Feb 2, 2017 at 13:20
@Donutloop This might be the solution for your problem: stackoverflow.com/a/60366545/516512 — Farshid
– Farshid, Commented Feb 23, 2020 at 20:32

Havelock · Accepted Answer · 2017-02-02 22:33:12Z

0

Since the IP you specified relates to your host and not your docker environment and you're running your app inside docker too, just omit the IP:

ports:
  -5432:5432

So you'd just need to pass the Postgres alias, followed by its port to your go app (either as an env var or a flag).

answered Feb 2, 2017 at 22:12

Havelock

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