78-tekton.sh

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# Tekton                                                #
# Kubernetes Cloud-Native CI/CD Pipelines And Workflows #
# https://youtu.be/7mvrpxz_BfE                          #
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# Referenced videos:
# - Argo Workflows and Pipelines - CI/CD, Machine Learning, and Other Kubernetes Workflows: https://youtu.be/UMaivwrAyTA
# - Automation of Everything - How To Combine Argo Events, Workflows & Pipelines, CD, and Rollouts: https://youtu.be/XNXJtxkUKeY
# - Kaniko - Building Container Images In Kubernetes Without Docker: https://youtu.be/EgwVQN6GNJg

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

# Create a Kubernetes cluster with NGINX Ingress (https://kubernetes.github.io/ingress-nginx/deploy/)

# If NOT EKS
export INGRESS_HOST=$(kubectl \
    --namespace ingress-nginx \
    get svc ingress-nginx-controller \
    --output jsonpath="{.status.loadBalancer.ingress[0].ip}")

# If EKS
export INGRESS_HOSTNAME=$(kubectl \
    --namespace ingress-nginx \
    get svc ingress-nginx-controller \
    --output jsonpath="{.status.loadBalancer.ingress[0].hostname}")

# If EKS
export INGRESS_HOST=$(\
    dig +short $INGRESS_HOSTNAME)

echo $INGRESS_HOST

# Repeat the `export` commands if the output of the `echo` command is empty
# If the output contains more than one IP, wait for a while longer, and repeat the `export` commands.
# If the output continues having more than one IP, choose one of them and execute `export INGRESS_HOST=[...]` with `[...]` being the selected IP.

# Install `tkn` by following the instructions from the *Set up the CLI* section in https://tekton.dev/docs/getting-started/

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

cd tekton-demo

kubectl apply \
    --filename https://storage.googleapis.com/tekton-releases/pipeline/latest/release.yaml

kubectl apply \
    --filename https://storage.googleapis.com/tekton-releases/triggers/latest/release.yaml

kubectl apply \
    --filename https://storage.googleapis.com/tekton-releases/dashboard/latest/tekton-dashboard-release.yaml

export BASE_HOST=$INGRESS_HOST.nip.io

cat ingress.yaml \
    | sed -e "s@acme.com@tekton.$BASE_HOST@g" \
    | kubectl \
    --namespace tekton-pipelines \
    apply --filename -

export REGISTRY_SERVER=https://index.docker.io/v1/

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

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

# Replace `[...]` with the registry email
export REGISTRY_EMAIL=[...]

kubectl create namespace tekton-builds

kubectl --namespace tekton-builds \
    create secret \
    docker-registry regcred \
    --docker-server=$REGISTRY_SERVER \
    --docker-username=$REGISTRY_USER \
    --docker-password=$REGISTRY_PASS \
    --docker-email=$REGISTRY_EMAIL

kubectl create namespace staging

kubectl create namespace production

################
# Tekton tasks #
################

cat silly.yaml

####################
# Tekton pipelines #
####################

cat parallel.yaml

cat cd.yaml

kubectl apply --filename cd.yaml

kubectl --namespace tekton-builds \
    get pipelines

############################
# Running Tekton pipelines #
############################

tkn --namespace tekton-builds \
    pipeline start toolkit \
    --dry-run

cat cd-run.yaml

kubectl create --filename cd-run.yaml

tkn --namespace tekton-builds \
    pipelinerun list

tkn --namespace tekton-builds \
    pipelinerun logs --last --follow

kubectl --namespace tekton-builds \
    get pods

#################
# Tekton Web UI #
#################

echo http://tekton.$BASE_HOST

# Open the URL

###################
# Handling events #
###################

# Open https://github.com/tektoncd/triggers/blob/main/docs/getting-started/README.md
# Open https://github.com/tektoncd/triggers/blob/main/docs/getting-started/create-ingress.yaml
# Open https://github.com/tektoncd/triggers/blob/main/docs/getting-started/create-webhook.yaml
# Open https://github.com/tektoncd/experimental/blob/main/webhooks-extension/docs/GettingStarted.md
# Open https://github.com/tektoncd/triggers/tree/v0.10.1/examples/github
# Open https://github.com/tektoncd/dashboard/blob/main/docs/extensions.md

##############
# Tekton Hub #
##############

# Open https://hub.tekton.dev/