EDIT
Turned out to a problem with the image, I tried another one and it works fine
I'm trying to run Pgadmin 4 as server mode using Docker on Debian 9. I have followed the instructions on https://hub.docker.com/r/dpage/pgadmin4/ I start it by the following command
docker run -p 5050:5050 -e "[email protected]" -e "PGADMIN_DEFAULT_PASSWORD=a12345678" -d dpage/pgadmin4
I don't get any errors, and docker ps shows the status as below
root@poweredge:~# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c4b11e4bceb7 dpage/pgadmin4 "/bin/bash /entry.sh" 12 seconds ago Up 10 seconds 80/tcp, 443/tcp, 0.0.0.0:5050->5050/tcp upbeat_jackson
But when I go to serverip:5050 nothing loads. Any idea what the problem may be here?
On the local machine when I execute curl http://localhost:5050 I get Connection reset by peer if the docker instance is running
root@poweredge:~# curl http://localhost:5050
curl: (56) Recv failure: Connection reset by peer
if I stop the Docker instance, I get
root@poweredge:~# curl http://localhost:5050
curl: (7) Failed to connect to localhost port 5050: Connection refused
Answer
PgAdmin 4 docker container has exposed port 80 and 443 by default. You can checck the Dockerfile here https://github.com/postgres/pgadmin4/blob/master/pkg/docker/Dockerfile
So the port mapping parameter in the command has to be updated (-p host_port: container_port)
Below is the updated command to access pgadmin4 via http (port 80)
docker run -p 5050:80 -e "[email protected]" -e "PGADMIN_DEFAULT_PASSWORD=a12345678" -d dpage/pgadmin4
After starting the container you should be able to access it via http://localhost:5050