How to install Docker on Ubuntu 18.04 and Build specific image by Dockerfile

Docker Installation
$ sudo apt install -y apt-transport-https ca-certificates curl gnupg-agent software-properties-common

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

$ sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"

$ sudo apt update
$ sudo apt install -y docker-ce docker-ce-cli containerd.io

Check Docker version and status
$ docker -v
$ docker info

My .gitlab-ci.yml for Android Build

image: openjdk:8-jdk

variables:
  ANDROID_COMPILE_SDK: "29"
  ANDROID_BUILD_TOOLS: "29.0.2"
  ANDROID_SDK_TOOLS: "29.0.2"
 
before_script:
  - apt -q update
  - apt -q install -y wget tar unzip lib32stdc++6 lib32z1
  - wget -q -O android-sdk.zip https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip
  - unzip -q android-sdk.zip
 
  - echo y | tools/bin/sdkmanager "tools"
  - echo y | tools/bin/sdkmanager "build-tools;29.0.2"
  - echo y | tools/bin/sdkmanager "platform-tools" "platforms;android-29"
  - echo y | tools/bin/sdkmanager "extras;google;m2repository"
  - echo y | tools/bin/sdkmanager "extras;android;m2repository"
 
  - export ANDROID_HOME=$PWD/
  - export PATH=$PATH:$PWD/
  - chmod +x ./gradlew

stages:
  - test
  - build

unitTests:
  stage: test
  script:
    - ./gradlew test
   
build:
  stage: build
  only:
    - master
  script:
    - ./gradlew assembleDebug
  artifacts:
    paths:
    - app/build/outputs/

How to install Microsoft Azure CLI and Add Extension on Windows 10

1.Download azure-cli.msi and install
2.Open Windows PowerShell or Command Shell as administrator
3.Enter "az -h" to list command
4.Enter "az login -u 'username' -p 'password' --allow-no-subscriptions" to login Microsoft Azure
5.Enter "az extension list-available --output table" to list extension
6.Enter "az extension add --name azure-devops" to install target extension
7.Enter "az devops -h" to list command

Docker Command Note

Copy folder to Docker Container
docker cp folder/. ContainerID:/home

Start/Stop all of Containers
docker start $(docker ps -a -q)
docker stop $(docker ps -a -q)

Removing All Unused Objects
docker system prune
docker system prune --volumes

Remove Containers
docker container ls -a
docker container stop ContainerID
docker container rm ContainerID
docker container ls -a --filter status=exited --filter status=created
docker container prune
docker container prune --filter "until=12h"

Remove Images
docker image ls
docker image rm ImageID
docker image prune
docker image prune -a
docker image prune -a --filter "until=12h"

Remove Volumes
docker volume ls
docker volume rm VolumeID
docker volume prune

Remove Networks
docker network ls
docker network rm NetworkID
docker network prune
docker network prune -a --filter "until=12h"

How to add DNS address on Ubuntu 18.04

1.[user@docker:/#] sudo nano /etc/netplan/50-cloud-init.yaml
--------------------------------------------------------------------------------------------
# This file is generated from information provided by
# the datasource.  Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
    ethernets:
        enp0s3:
            dhcp4: true

    version: 2
--------------------------------------------------------------------------------------------
2.Add 2 lines as below
--------------------------------------------------------------------------------------------
network:
    ethernets:
        enp0s3:
            dhcp4: true
            nameservers:
                addresses: [8.8.4.4, 8.8.8.8]
    version: 2
--------------------------------------------------------------------------------------------
3.Save and exit

How to install Docker on Ubuntu 18.04

1.[user@docker:/#] sudo apt install -y apt-transport-https ca-certificates curl software-properties-common
2.[user@docker:/#] sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
3.[user@docker:/#] sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable"
4.[user@docker:/#] sudo apt update
5.[user@docker:/#] sudo apt-cache policy docker-ce
6.[user@docker:/#] sudo apt install -y docker-ce
7.[user@docker:/#] sudo systemctl status docker
8.[user@docker:/#] sudo docker -v
9.[user@docker:/#] sudo docker info