Permission denied on one docker container - docker

Question

I am new to docker and I am building a simple dashboard app with Loki and Grafana.
I am trying to change the Grafana setup file in the Grafana container, however, it says "Permission denied". I tried mkdir test in the container at multiple locations and they are all permission denied, so I know its a permission issue. For my entire repository, I have 4 separate containers. All other containers do not get permission denied, only the Grafana container. Furthermore, my old Ubuntu VM was corrupted, but the old VM also did not get permission denied, so I am not sure why the new one is.
I have tried running:
sudo chmod -R a+rwx repo
to provide permissions to everything. I checked all the volumes permissions by right-clicking them, and they are all "Create and delete files" for Owner, Group and Others.
On the docker container, I ran a permissions check and got:
However, the other containers have similar permissions.
I also ran id on the container. For the container with no permissions, I got:
for the one that does not work.
The ones that do work return
The entire docker-compose code can be found here:
version: "3"
networks:
bypass:
services:
loki:
image: grafana/loki:2.4.0
volumes:
- ./admin/config:/mnt/config
- ./data/loki:/mnt/loki
ports:
- "3100:3100"
command: -config.file=/mnt/config/loki-config.yaml
restart: unless-stopped
networks:
- bypass
promtail:
image: grafana/promtail:2.4.0
volumes:
- ./data/raw:/mnt/raw
- ./data/log:/mnt/log
- ./admin/config:/mnt/config
command: -config.file=/mnt/config/promtail-config.yaml
restart: unless-stopped
networks:
- bypass
bypass:
image: bypass:latest
ports:
- "8080:8080"
volumes:
- ./data/raw:/mnt/raw
- ./data/log:/mnt/log
- ./admin/config:/mnt/config
- ./data/template:/mnt/template
networks:
- bypass
grafana:
image: grafana/grafana:8.2.5
user: "1000"
volumes:
- ./data/grafana:/var/lib/grafana
- ./data/log:/var/lib/temp_data
restart: unless-stopped
ports:
- "3000:3000"
networks:
- bypass

Answer 1

The issue was under user. I tried specifying
user: "1000"
in the grafana docker-compose because when running id on my local machine, it says that the UID for the user and group are both 1000. Despite this, I had to change the user to
user: "0"
to replicate what I was seeing on the containers of my other services and it worked!