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How to build the cdh container?

docker build -t docker-cdh54 .
docker run -v /root/docker:/root -p 8042:8042 -p 8088:8088 -p 8020:8020 -p 8888:8888 -p 11000:11000 -p 11443:11443 -p 9090:9090 -d -ti --privileged=true docker-cdh54
docker attach 922ac2f47d93

common command lines

How to list images with docker

docker images

How to list (running) containers

docker ps

Output example:

CONTAINER ID        IMAGE                   COMMAND                  CREATED             STATUS              PORTS                                                                                        NAMES
9265bc46c9ce        rabbitmq:3-management   "docker-entrypoint..."   2 hours ago         Up 2 hours          4369/tcp, 5671/tcp, 0.0.0.0:5672->5672/tcp, 15671/tcp, 25672/tcp, 0.0.0.0:15672->15672/tcp   laughing_lamarr
3c579f0d72f8        mysql:5.7               "docker-entrypoint..."   2 hours ago         Up 2 hours          0.0.0.0:3306->3306/tcp, 33060/tcp          thirsty_fermi

how to list the ip addresses of all the containers

docker ps | tail -n +2 | while read cid b; do echo -n "$cid\t"; docker inspect $cid | grep IPAddress | cut -d \" -f 4; done

how to list the ip addresses of one container by name

docker inspect --format '{{ .NetworkSettings.Networks.dockerdevstack_default.IPAddress }}' <name of container>

How to stop a containers

docker stop <container id>

for example

docker stop 9265bc46c9ce

How to attach to a background container

docker attach 9265bc46c9ce

From docker 1.3 onwards.

docker exec -it <containerIdOrName> bash

How to exit a container without shutting down the container

You can disconnect and leave the container running by typing Ctrl+p followed by Ctrl+q.

How to use the Cloudera Hadoop Docker image

https://www.cloudera.com/documentation/enterprise/5-6-x/topics/quickstart_docker_container.html

docker run -v /home/mathieu/datashare/dev:/home/mathieu/datashare/dev -p 8042:8042 -p 8088:8088 -p 8020:8020 -p 8888:8888 -p 11000:11000 --hostname=quickstart.cloudera --privileged=true -t -i cloudera/quickstart /usr/bin/docker-quickstart

or my own baseline

docker run -v /home/mathieu/datashare/dev:/home/mathieu/datashare/dev -p 8042:8042 -p 8088:8088 -p 8020:8020 -p 8888:8888 -p 11000:11000 --hostname=quickstart.cloudera --privileged=true -t -i cloudera/base2017-10-20 /usr/bin/docker-quickstart

How to start an image

docker run -it YOUR_IMAGE /bin/sh

docker run -it --entrypoint /bin/sh YOUR_IMAGE

Useful Docker images to start quickly for development

gcc

docker run  -it gcc:8.2 sh

run mount local volume

docker run -it -v $(pwd):/app  gcc:8.2 sh

ubuntu

docker run -t -i -v <host_dir>:<container_dir>  ubuntu /bin/bash

run retrace base image

docker run -it -v $(pwd):/app retrace-base-image:0.2 bash

How to start a Memcached container for local dev on the host

docker run --name some-memcached -p 11211:11211 -d  memcached

How to copy files from inside a running docker container

docker cp $CONTAINER_ID:/root/.utctestchain /tmp/.utctestchain

How to display logs:

docker logs -f objective_shtern

Docker Compose

Compose up

docker-compose up -d

With override files

docker-compose -f docker-compose.yml -f docker-compose.override.yml up -d

tear down the whole stack

docker-compose down

tear down service

docker-compose stop <name of my service>

tail logs

docker-compose logs -f <name of service>

combine docker-compose up with logs

docker-compose up -d && docker-compose logs -f

open terminal on container via docker-compose

docker-compose exec <name of service> bash

Google Cloud authentication

Login

Authenticate docker with gcr by downloading for your platform docker-credential-gcr and add it to your path: https://github.com/GoogleCloudPlatform/docker-credential-gcr/releases

Run the docker-credential-gcr tool to configure and authenticate docker with gcloud.

docker-credential-gcr configure-docker
docker-credential-gcr gcr-login

Logout

docker-credential-gcr gcr-logout

--> ~/.config/gcloud/docker_credentials.json is deleted

Purging All Unused or Dangling Images, Containers, Volumes, and Networks

ref: https://www.digitalocean.com/community/tutorials/how-to-remove-docker-images-containers-and-volumes#:~:text=Remove%20all%20images,docker%20images%20%2Da ref: https://docs.docker.com/config/pruning/#:~:text=Prune%20containers&text=A%20stopped%20container's%20writable%20layers,the%20docker%20container%20prune%20command.&text=y%2FN%5D%20y-,By%20default%2C%20you%20are%20prompted%20to%20continue.,f%20or%20%2D%2Dforce%20flag.

Docker provides a single command that will clean up any resources — images, containers, volumes, and networks — that are dangling (not associated with a container):

docker system prune

To additionally remove any stopped containers and all unused images (not just dangling images), add the -a flag to the command:

docker system prune -a