179-kpack.sh

# Source: https://gist.github.com/f744313878391196ae9aea5b9dc17071

##########################################################################
# Container (Docker) Images Without Dockerfile With Buildpacks and kpack #
# https://youtu.be/fbSoKu8NGSU                                           #
##########################################################################

# Additional Info:
# - Cloud Native Buildpacks: https://buildpacks.io
# - Paketo Buildpacks: https://paketo.io
# - kpack: https://github.com/pivotal/kpack

#########
# Setup #
#########

# Create a Kubernetes cluster

# Make sure that Docker is running

# Install `pack` CLI from https://buildpacks.io/docs/tools/pack
# Install `kpack` CLI from https://github.com/vmware-tanzu/kpack-cli

git clone https://github.com/vfarcic/kpack-demo

cd kpack-demo

kubectl apply \
    --filename https://github.com/pivotal/kpack/releases/download/v0.5.3/release-0.5.3.yaml

# Replace `[...]` with the registry username
export REGISTRY_USER=[...]

# Replace `[...]` with the registry password
export REGISTRY_PASS=[...]

# Replace `https://index.docker.io/v1/` with the registry URL if not using Docker Hub
export REGISTRY_URL=https://index.docker.io/v1/

kubectl create namespace build

kubectl create secret docker-registry registry-creds \
    --docker-username=$REGISTRY_USER \
    --docker-password=$REGISTRY_PASS \
    --docker-server=$REGISTRY_URL \
    --namespace build

cat config.yaml \
    | sed -e "s@tag: .*@tag: $REGISTRY_USER/silly-demo@g" \
    | tee config.yaml

cat image.yaml \
    | sed -e "s@tag: .*@tag: $REGISTRY_USER/silly-demo@g" \
    | sed -e "s@- .*/silly-demo:latest@- $REGISTRY_USER/silly-demo:latest@g" \
    | sed -e "s@- .*/silly-demo:0.0.1@- $REGISTRY_USER/silly-demo:0.0.1@g" \
    | tee image.yaml

kubectl apply --filename config.yaml

###########################################
# Build Container (Docker) Images Locally #
###########################################

ls -1

pack build silly-demo

# Open https://buildpacks.io

docker image ls

pack config default-builder \
    paketobuildpacks/builder:tiny

# Open https://paketo.io

pack build silly-demo

docker image ls

#################################################
# Build Container (Docker) Images In Kubernetes #
#################################################

cat image.yaml

kubectl create --filename image.yaml

# Open https://github.com/pivotal/kpack

kubectl --namespace build get pods

kubectl --namespace build get images

kp build list --namespace build

# Replace `[...]` with the image name
export IMAGE=[...]

kp build logs $IMAGE --namespace build

echo "https://hub.docker.com/r/$REGISTRY_USER/silly-demo/tags"

# Open it in a browser

#############################################
# Build Container (Docker) Images Using CLI #
#############################################

kp config default-service-account \
    registry-creds \
    --service-account-namespace build

kp image create silly-demo-0-0-2 \
    --namespace build \
    --builder silly-demo \
    --tag vfarcic/silly-demo:0.0.2 \
    --git https://github.com/vfarcic/kpack-demo \
    --git-revision ebb790f3959c05e6c196e88016a243a0053f450a

which url repo should I use instead of dockerhub to build a container image

That depends on which container registry you're using. Typically, all should have a UI that show you the info you need to connect to them.

As an alternative, if you logged into your registry with Docker, you should see the info you need in ~/.docker/config.json.

there is an issue with 0.5.4 version btw, as least I can face it: buildpacks-community/kpack#979 otherwise this was a great introduction. thank you for your time doing it.

I did not experience that issue myself. Great that you opened it and hope it'll be resolved soon.