some useful commands and comments on docker usage

useful-docker-stuff.sh

# Docker useful commands:

# Build docker container with tag name  using Docker (Dockerfile should be in current dir)
docker build -t <choose_image_name>

# Start container with required commands, (one’s specified in CMD tag in Dockerfile)
docker run <image_name>

# Start container with shell of choice
docker run -it o4s-transactions sh

# View all docker containers
docker ps -a

# Remove docker container by id
docker rm <container_id>

# Remove all exited containers
docker rm $(docker ps -a -q -f status=exited)     

# List all available images
docker image ls

# Remove image
docker rmi <image_id>

# Get a shell session into a container
docker exec -it <containerId or name> bash

# Useful PM2 commands with docker

docker exec -it <container-id> pm2 monit # Monitoring CPU/Usage of each process	
docker exec -it <container-id> pm2 list	# Listing managed processes
docker exec -it <container-id> pm2 show	# Get more information about a process
docker exec -it <container-id> pm2 reload all # 0sec downtime reload all applications


#docker volumes 
docker volume create <volume-name> # create new volume
docker volume ls # show existing volumes
docker volume rm <volume-name> # remove volume
docker volume inspect <volume-name> # inspect a volume

# mounting a volume to a container
docker run -d \
-it \
--name <container-name> \
--mount source=<volume-name>,target=/path/on/container \
<image-name:version>

# inspect container
docker inspect <container-name> # you will find info about mounted volumes here

# using a bind mount (not flexible but might be needed)
 docker run -d \
 -it \
 --name <container-name> \
 --mount type=bind,source="/path/on/host",target=/path/on/container \
<image-name:version>