Automate Docker workflow

scdocker.sh

########## Default Values #########################

# GitHub Repo URL (Both SSH and HTTPS work)
REPO_URL="<YOUR_REPO_URL>"

# GitHub branch
BRANCH="master"

# Docker Image Tag
TAG="latest"

# DockerHub User Credentials
USER="abc"              # DockerHub username
EMAIL="xyz"             # DockerHub account email

# PASSWORD="xyz"                # Current User's password
# DOCKERHUB_PWD="xyz"           # DockerHub account password

####################################################

###### Parsing command line options ################
while [[ $# > 1 ]]
do
key="$1"

case $key in
    
    -r|--repo)
    REPO_URL="$2"
    shift # past argument
    ;;

    -b|--branch)
    BRANCH="$2"
    shift # past argument
    ;;

    -i|--image)
    IMAGE="$2"
    shift # past argument
    ;;
    
    -t|--tag)
    TAG="$2"
    shift # past argument
    ;;
    
    -u|--user)
    USER="$2"
    shift # past argument
    ;;

    -e|--email)
    EMAIL="$2"
    shift # past argument
    ;;

    *)
esac
shift # past argument or value
done
####################################################

printf "\n"

TEMP="$(echo $REPO_URL | grep / | rev | cut -d '/' -f 1 | rev)"
DIRNAME=(${TEMP//./ })  # Eg.: lens

CloneRepo () {
    # Check if local copy of repo exists. If not, clone repo.
    
    if [ -d "$DIRNAME" ]; then
        echo Repo exists.
    else
        git clone $REPO_URL
    fi

    cd $DIRNAME

    printf "\n"    
}

SetupBranch () {
    # Set up specified branch
    
    echo "Setting up branch $BRANCH..."
    git fetch && git checkout $BRANCH

    printf "\n"    
}


BuildImage () {
    # Build image from Docker File in current directory

    echo "Building docker image..."
    sudo docker build -t $IMAGE .

    printf "\n"
}


RunImage () {
    # Run docker image
    
    echo "Running docker image..."
    sudo docker run $IMAGE

    printf "\n"
}

TagImage () {
    # Tag docker image
    
    echo "Tagging docker image..."
    details="$(sudo docker images | grep $IMAGE)"
    details_array=($details})
    sudo docker tag ${details_array[2]} $USER/$IMAGE:$TAG
    # echo $PASSWORD | sudo -kS docker tag ${details_array[2]} $USER/$IMAGE:$TAG

    printf "\n"    
}


DockerHubLogin () {
    # Login to DockerHub account
    
    echo "Logging into DockerHub..."
    sudo docker login --username=$USER --email=$EMAIL
    # sudo docker login --username=$USER --password=$DOCKERHUB_PWD --email=$EMAIL
    
    printf "\n"       
}

PushImage () {
    # Push Docker image to our DockerHub account
    
    echo "Pushing docker image to DockerHub account..."
    sudo docker push $USER/$IMAGE
    # echo $PASSWORD | sudo -kS docker push $USER/$IMAGE
    
    printf "\n"
}


# Sequence of actions
CloneRepo
SetupBranch
BuildImage
# RunImage
TagImage
DockerHubLogin
PushImage


echo "Hurray!"

Usage:

scdocker --repo <repo_url> --branch <branch_name> --image <image_name> --tag <tag> --user <dockerhub_user> --email <dockerhub_email>

Can set default values in the top section of the code.

Required option: --image

Shorthand Usage:

--repo => -r
--branch => -b
--image => -i
--tag => -t
--user => -u
--email => -e