Docker is an extremely popular containerization tool that makes it easy to create, deploy, run applications in containers.
# build an image with some version
docker build -t someapp:version .
# build fresh without cache
docker build --no-cache -t someapp:version .
# detach and run
docker container run -d --name someapp -p 5000:5000 someapp:version
# detach and interactive
docker container run -d -it --name someapp -p 5000:5000 someapp:version
# show containers
docker ps
# show container even stopped ones
docker ps -a
docker container stop|rm|run
docker image ls|rm
# interactive container
docker exec -it containerid /bin/sh; exit
# following the logs
docker logs -f appname
# for mounting your code directory into the container
docker run -it --mount "type=bind,source=$(pwd),target=/usr/src/app" -d --name omega-blog -p 80:80 omega-blog:latest
docker run -it --mount "type=bind,source=$(pwd),target=/usr/src/app" -d --name stock_market_dashboard -p 3000:3000 stock_market_dashboard:latest
# create a new container based on a name and ssh into it directly
docker container run -it ubuntu:latest /bin/bash
# EXAMPLE
# to prune old images
docker image prune
# to prune old containers that are stopped
docker container prune
# remove old container
docker container stop omega-blog && docker container rm omega-blog
# remove old image
docker image rm `docker image ls | grep omega-blog | awk '{print $3}'`
# build new image
docker image build --no-cache -t omega-blog:latest .
# running with docker
docker run -it --mount "type=bind,source=$(pwd),target=/usr/src/app" -d --name omega-blog -p 80:80 omega-blog:latest
# to pass an environment file
docker run --env-file .env-doc-dev -it --mount "type=bind,source=$(pwd),target=/usr/src/app" -d --name iot-dashboard -p 9000:9000 iot-dashboard:latest
# to look at logs and follow
docker logs -f omega-blog
# actual codes to run
docker image build --no-cache -t iot-dashboard:latest .
docker run --env-file .env-doc-dev -it --mount "type=bind,source=$(pwd),target=/usr/src/app" -d --name iot-dashboard -p 9000:9000 iot-dashboard:latest
docker logs -f iot-dashboard
# to restart the container
docker container restart iot-dashboard
# to stop and rm the container
docker container stop iot-dashboard && docker container rm iot-dashboard
# to restart all containers
docker restart $(docker ps -a -q)
# getting help
$ docker help
Usage: docker [OPTIONS] COMMAND
A self-sufficient runtime for containers
Options:
--config string Location of client config files (default "/Users/hammer/.docker")
-c, --context string Name of the context to use to connect to the daemon (overrides DOCKER_HOST
env var and default context set with "docker context use")
-D, --debug Enable debug mode
-H, --host list Daemon socket(s) to connect to
-l, --log-level string Set the logging level ("debug"|"info"|"warn"|"error"|"fatal") (default "info")
--tls Use TLS; implied by --tlsverify
--tlscacert string Trust certs signed only by this CA (default "/Users/hammer/.docker/ca.pem")
--tlscert string Path to TLS certificate file (default "/Users/hammer/.docker/cert.pem")
--tlskey string Path to TLS key file (default "/Users/hammer/.docker/key.pem")
--tlsverify Use TLS and verify the remote
-v, --version Print version information and quit
Management Commands:
builder Manage builds
config Manage Docker configs
container Manage containers
context Manage contexts
image Manage images
network Manage networks
node Manage Swarm nodes
plugin Manage plugins
secret Manage Docker secrets
service Manage services
stack Manage Docker stacks
swarm Manage Swarm
system Manage Docker
trust Manage trust on Docker images
volume Manage volumes
Commands:
attach Attach local standard input, output, and error streams to a running container
build Build an image from a Dockerfile
commit Create a new image from a container's changes
cp Copy files/folders between a container and the local filesystem
create Create a new container
diff Inspect changes to files or directories on a container's filesystem
events Get real time events from the server
exec Run a command in a running container
export Export a container's filesystem as a tar archive
history Show the history of an image
images List images
import Import the contents from a tarball to create a filesystem image
info Display system-wide information
inspect Return low-level information on Docker objects
kill Kill one or more running containers
load Load an image from a tar archive or STDIN
login Log in to a Docker registry
logout Log out from a Docker registry
logs Fetch the logs of a container
pause Pause all processes within one or more containers
port List port mappings or a specific mapping for the container
ps List containers
pull Pull an image or a repository from a registry
push Push an image or a repository to a registry
rename Rename a container
restart Restart one or more containers
rm Remove one or more containers
rmi Remove one or more images
run Run a command in a new container
save Save one or more images to a tar archive (streamed to STDOUT by default)
search Search the Docker Hub for images
start Start one or more stopped containers
stats Display a live stream of container(s) resource usage statistics
stop Stop one or more running containers
tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
top Display the running processes of a container
unpause Unpause all processes within one or more containers
update Update configuration of one or more containers
version Show the Docker version information
wait Block until one or more containers stop, then print their exit codes
Run 'docker COMMAND --help' for more information on a command.