Dockerize pgAdmin - The CSRF tokens do not match - docker

Question

I've been trying to fix an issue which is when I try to login to pgAdmin (in docker container) behind Nginx Proxy I'm getting an error that The CSRF tokens do not match.
See https://en.wikipedia.org/wiki/Cross-site_request_forgery
Frankly, the problem is related within nginx or not I'm not sure but configuration files as below:
Docker Swarm Service :
pgAdmin:
image: dpage/pgadmin4
networks:
- my-network
ports:
- 9102:80
environment:
- PGADMIN_DEFAULT_EMAIL=${PGADMIN_DEFAULT_EMAIL}
- PGADMIN_DEFAULT_PASSWORD=${PGADMIN_DEFAULT_PASSWORD}
- PGADMIN_CONFIG_SERVER_MODE=True
volumes:
- /home/docker-container/pgadmin/persist-data:/var/lib/pgadmin
- /home/docker-container/pgadmin/persist-data/servers.json:/pgadmin4/servers.json
deploy:
placement:
constraints: [node.hostname == my-host-name]
Nginx Configuration:
server {
listen 443 ssl;
server_name my-server-name;
location / {
proxy_pass http://pgAdmin/;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-CSRF-Token $http_x_pga_csrftoken;
}
ssl_certificate /home/nginx/ssl/certificate.crt;
ssl_certificate_key /home/nginx/ssl/private.key;
ssl_session_cache builtin:1000 shared:SSL:10m;
ssl_prefer_server_ciphers on;
server {
listen 80;
server_name my-server-name;
return 301 https://my-server-name $request_uri;
}
I can able to access to pgAdmin in two ways :
The first way is direct host ip like 172.23.53.2:9102
The second way is via Nginx proxy.
When I try to access to pgAdmin via direct host ip there is no error but when I try to access to via dns ( like my-server.pgadmin.com ) I'm getting an error when I logged into pgAdmin dashboard.
The error is :
Bad Request. The CSRF tokens do not match.
My first opinion about this error is nginx does not pass CSRF Token header to pgAdmin. For these reason I've changed nginx configuration file many many times but I'm still getting this error.
What could be source of this error and how could I solve this problem?

Answer 1

Try to use the default ports "5050:80". It's solved the same issue on my side.
Using strings is also recommended.
Cf: https://docs.docker.com/compose/compose-file/compose-file-v3/#ports

Answer 2

I used pgadmin4 deployed by Apache httpd,
the deployment method is similar, I also had the same problem,
my solution is Apache httpd loaded the lib of Apr/Aprl-util /pcre, Apache httpd will use token.