Docker : Reset portainer admin password

 Solutions:

1. List all docker container

# List all docker containers
docker ps

2. Stop the portainer container

# Stopping the portainer container... 
docker stop <id-portainer-container>

3. Reset password

# Resetting the passwort
docker run --rm -v portainer_data:/data portainer/helper-reset-password

4. Start the portainer container

# Starting the portainer container
docker start <id-portainer-container>

5.Login to the web with temp password 

Then need to change new password

source : https://it-infrastructure.solutions/how-to-reset/