dockerbasiccommand.txt

##########################
##### Install Docker #####
##########################

### Eksekusi di node podX-node0 ###
#1. Instal Docker
sudo apt -y install docker.io
sudo systemctl status docker

#2. Menampilkan versi docker
sudo docker version


#3. Menampilkan detil instalasi docker
sudo docker info

#4. Uji instalasi docker
sudo docker run hello-world

#5. Menampilkan image yang sudah didownload
sudo docker image ls

#6. Menampilkan semua container (active ataupun exit)
sudo docker container ls -a


##########################
##### Whalesay image #####
##########################

#1. Buka Docker Hub dan cari image whalesay
https://hub.docker.com

#2. Jalankan image whalesay
sudo docker run docker/whalesay cowsay username


#3. Tampilkan image yang sudah didownload
sudo docker image ls

#4. Tampilkan semua container (upataupun exit)
sudo docker container ls -a


##################################
##### Dockerfile (latihan01) #####
##################################

#1. Buat direktori /latihan/latihan01 dan masuk ke dalamnya
sudo mkdir -p /latihan/latihan01
#sudo chown -R [USER]:[GROUP_NAME] [file/dir]
sudo chown -R ubuntu:ubuntu /latihan ##KET: -R: mengoperasikan file dn direktori secara rekursif
cd /latihan/latihan01


#2. Buat file Dockerfile
vim Dockerfile

# Use whalesay image as a base image
FROM docker/whalesay:latest

# Install fortunes
RUN apt -y update && apt install -y fortunes

# Execute command
CMD /usr/games/fortune -a | cowsay


#3. Bangun image dari Dockerfile
sudo docker build -t docker-whale .

#4. Tampilkan image yang sudah dibangun
sudo docker image ls

#5. Uji jalankan image
sudo docker run docker-whale



#################################
##### Dockerfile (latihan02) #####
##################################

#1. Buat direktori /latihan/latihan02 dan masuk ke dalamnya
sudo mkdir -p /latihan/latihan02
sudo chown -R ubuntu:ubuntu /latihan
cd /latihan/latihan02


#2. Buat file Dockerfile
vim Dockerfile

# Use an official Python runtime as a parent image
FROM python:2.7-slim

# Set the working directory to /app
WORKDIR /app

# Copy the current directory contents into the container at /app
ADD . /app

# Install any needed packages specified in requirements.txt
RUN pip install --trusted-host pypi.python.org -r requirements.txt

# Make port 80 available to the world outside this container
EXPOSE 80

# Define environment variable
ENV NAME World

# Run app.py when the container launches
CMD ["python", "app.py"]


#3. Buat file requirements.txt
vim requirements.txt

Flask
Redis


#4. Buat file app.py
vim app.py

from flask import Flask
from redis import Redis, RedisError
import os
import socket

# Connect to Redis
redis = Redis(host="redis", db=0, socket_connect_timeout=2, socket_timeout=2)

app = Flask(__name__)

@app.route("/")
def hello():
    try:
        visits = redis.incr("counter")
    except RedisError:
        visits = "<i>cannot connect to Redis, counter disabled</i>"

    html = "<h3>Hello {name}!</h3>" \
           "<b>Hostname:</b> {hostname}<br/>" \
           "<b>Visits:</b> {visits}"
    return html.format(name=os.getenv("NAME", "world"), hostname=socket.gethostname(), visits=visits)

if __name__ == "__main__":
    app.run(host='0.0.0.0', port=80)


#5. Bangun image dari Dockerfile
ls
sudo docker build -t friendlyhello .

#6. Tampilkan image yang sudah dibangun
sudo docker image ls

#7. Uji jalankan image
sudo docker run -d -p 4000:80 friendlyhello

###KALO GAGAL CEK DOC DOCKER DI WEBSITE#####	

#8. Tampilkan container Up
sudo docker container ls

#9. Uji browsing app
curl http://localhost:4000

#10. Stop container
sudo docker container stop [CONTAINER ID]

#11. Tampilkan container Up
sudo docker container ls -a


#########################
##### Publish Image #####
#########################

#1. Login dengan Docker ID
sudo docker login

#2. Tag image
sudo docker tag friendlyhello [USER]/latihan:latihan02

#3. Tampilkan image yang sudah dibangun
sudo docker image ls

#4. Dorong image ke repo
sudo docker push [USER docker]/latihan:latihan02

#5. Uji jalankan image
sudo docker run -d -p 4000:80 [USER]/latihan:latihan02

#6. Tampilkan container Up
sudo docker container ls

#8. Uji browsing app
curl http://localhost:4000

#9. Stop container
sudo docker container stop [CONTAINER ID]

#10. Tampilkan container Up
sudo docker container ls -a



###################
##### Volumes #####
###################

#1. Membuat volume
sudo docker volume create my-vol

#2. Menampilkan daftar volume
sudo docker volume ls

#3. Menampilkan detil volume
sudo docker volume inspect my-vol

#4. Jalankan container dengan volume
sudo docker run -d --name=nginxtest -v my-vol:/usr/share/nginx/html nginx:latest ---->>##-v my-vol:/usr/share/nginx/html artinya bind/menyatukan volume 'my-vol' ke direktori container nginx

#5. Tampilkan alamat IP container
sudo docker inspect nginxtest | grep -i ipaddress

#6. Uji browsing ke alamat IP container
curl http://172.17.XXX.XXX

#7. Buat file index.html dan pindahkan ke direktori source volume
sudo echo "This is from my-vol source directory." > index.html
sudo mv index.html /var/lib/docker/volumes/my-vol/_data

#8. Uji browsing ke alamat IP container
curl http://172.17.XXX.XXX



##### Quiz #####

1. Buat Dockerfile untuk menjalankan aplikasi yang bersumber dari https://github.com/gabrielecirulli/2048
2. Push image yang sudah dibuat di Quiz no.1 ke docker hub