Docker Useful commands

Create Dockerfile
```
  touch Dockerfile
```

Build dockerfile

  docker build [name] [path]
  docker build sample .
  
  or build using  dockerhub_id

  docker build --tag [dockerhubid]/[name]:version [path]

List all the running docker container
```
  docker ps  
```
List all the running docker container ID
```
  docker ps -aq
```
List all the images
```
  docker images ls
```
List all the containers
```
  docker container ls
```
Run docker container in a detached mode
```
  docker run [image]:[version]
```

Run docker container in a detached mode

  docker run -d [image]:version/tag   
  docker run -d ngnix:latest

Running docker container in a detached mode with exposing port

  docker run -d -p host_port:contianer_port [image]:version/tag   
  docker run -d -p 8080:80 ngnix:latest

Stopping running docker container
```
  docker stop [container_id]
```

Running docker container in a detached mode with exposing multiple ports

  docker run -d -p host_port:contianer_port -p host_port:contianer_port [image]:version/tag   
  docker run -d -p 8080:80 -p 3000:80 ngnix:latest

Removing docker container

  docker rm [container_id]

Note : docker rm will not remove running container, To stop running instance try with flag -f(force),

  docker rm -f [container_id]
  docker rm -f $(docker ps -aq)

  Second command will remove all the existing docker container by filtering container_ids

Creating a docker container with custom name

  docker run --name custom_name -d host_port:contianer_port [image]:version/tag  

  docker run --name website -d 8080:80 ngnix:latest

Displaying results with formatted style(docker-ps-vertical)

  export FORMAT="ID\t{{.ID}}\nNAME\t{{.Names}}\nIMAGE\t{{.Image}}\nPORTS\t{{.Ports}}\nCOMMAND\t{{.Command}}\nCREATED\t{{.CreatedAt}}\nSTATUS\t{{.Status}}\n"

  docker ps --format = $FORMAT

Pushing our custom html file directly to nginx server

  docker run --name custom_containername -v Source_html_path:Destination_HTML_path:mode -p host_port:contianer_port [image]:version/tag 

  docker run --name website -v $(pwd):/usr/share/nginx/html:ro -p 8080:80 ngnix:latest

  mode = ro
  ro - only read

Executing in a interaction mode in bash

  docker exec -it container-name bash
  docker exec -it website bash

Exitting from bash interaction mode
```
  exit
```

Creating a new container from the mounted volume

  docker run --name container_name --voulme-from container_name -d  -p host_port:contianer_port [image]:version/tag

Login in to external docker container
```
  docker login servername
```
Inspecting container id
```
  docker inspect container_id 
```
Logging container_id
```
  docker logs container_id
```
creating dockerfile
```
  touch Dockerfile
```
Building custom docker image
```
  docker build --tag website:latest
```
Pulling docker image of node-alpine
```
  docker pull node:alpine 
```
Setting up the tag for our cusotm build image from present to future tag, which overwrite container name
```
  docker tag [tag_name_present]:version [tag_name_future]:version
```
Removing one or more images of docker
```
  docker rmi [option] image:tag
```
Removing docker volumes(try if there is a less space in working env)
```
  docker system prune --all --force --volumes
```

Docker Explanation

Kubernates Useful commands

To run kubernates, we need minikube and kubectl

Running minikube

  minikube start hypervisor --hypervisor
  minikube start docker --docker

Getting all nodes
```
  kubectl get nodes
```
Getting all pds
```
  kubectl get pod
```
Getting all serivices
```
  kubectl get services
```
Getting all deployments
```
  kubectl get deployments
```

Creating component(a deployment(abstraction ober pods) of pod)

  kubectl create -f file.(yaml)
          (or)
  kubectl apply -f file.(yaml)

Getting log of pod
```
  kubectl logs podname
```
Describing pods
```
  kubectl describe pod pod_name
```

Executing interactive pod with bash

  kubectl exec -it pod_name -- bin/bash

Deleting config file
```
  kubectl delete -f filename
```
Get all pods
```
  kubectl get all
```
Get pod with IP
```
  kubectl get pod -o wide
```

yuvan11 / docker-kubernetes-guide

Docker Useful commands

Docker Explanation

Kubernates Useful commands

Kubernates Explanation

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