Docker

Cheatsheets

• docker-compose config

Docker: Transferring Docker Images Without Registry

Docker: Transferring Docker Images Without RegistryMedium

extract docker image to .tar

$ docker save --output ${IMAGE_NAME_ANYTHING}.tar ${TARGET_IMAGE}:${TARGET_IMAGE_VERSION}
$ docker save --output binux-0.19.0.tar binux:0.19.0

import .tar docker image

$ docker load --input saved-image.tar

image snapshot

$ docker commit ${CONTAINER_ID} ${IMAGE_NAME}:${IMAGE_VERSION}

bind mount

 docker run -d \
  -it \
  --name ${CONTAINER_NAME} \
  --mount type=bind,source="$(pwd)"/${FROM_URL},target=/${TO_URL} \
  ${IMAGE_NAME}:$%{}

 docker run -d \
  -it \
  --name devtest \
  --mount type=bind,source="$(pwd)"/target,target=/app \
  nginx:latest

Use bind mountsDocker Documentation

How to persist data in a dockerized postgres database using volumesStack Overflow

How to run PostgreSQL in Docker on Mac (for local development) - SaltyCrane Blog

Docker Tip #35: Connect to a Database Running on Your Docker Host

Docker Tip #35: Connect to a Database Running on Your Docker HostNick Janetakis

Check IP

ifconfig

Create a custom bridge Docker network:

if IP address 192.168.43.255

docker network create -d bridge --subnet 192.168.43.0/24 --gateway 192.168.43.114 mynet

// run docker image with bridge network

Cheat sheet

docker process kill all

$ docker kill $(docker ps -q)

docker remove volumes

$ docker volume rm $(docker volume ls -q)

check docker processes

$ docker ps

access docker container shell

# check container ID
$ docker ps

$ docker exec -it <mycontainer> bash

e.g
$ sudo docker exec -i -t 665b4a1e17b6 /bin/bash #by ID
or
$ sudo docker exec -it loving_heisenberg /bin/bash #by Name
$ root@665b4a1e17b6:/#

access docker PSQL

$ docker exec -it ${docekr name || container id} psql -U postgres

e.g
$ docker exec -it devserum_postgres psql -U postgres

How to get bash or ssh into a running container in background mode?Ask Ubuntu

docker build with multiple tags

$ docker build -t whenry/fedora-jboss:latest -t whenry/fedora-jboss:v2.1 .

How to create named and latest tag in Docker?Stack Overflow

check docker container ip

docker inspect {containerID} | grep "IPAddress"

docker run

$ docker run -p 5000:5000 whenry/fedora-jboss:latest 

after run docker test via curl

curl -ivk localhost:5000/

build

docker build -t ${PROJECT_NAME}:latest .

RUN

# format
docker run -p ${DOCKER_HOST}:${CONTAINER} -d ${PROJECT_NAME} --name ${PROJECT_NAME}


# e.g
# your container run 4000, and want to open 80
docker run -p 80:4000 -d ${PROJECT_NAME} --name ${PROJECT_NAME}

check run containers

docker ps -all

debug

logs

$ docker logs -f <CONTAINER>

Empowering App Development for Developers | DockerDocker