57-argo-workflows.sh

# Source: https://gist.github.com/28e2adb5946ca366d7845780608591d7

###########################################################
# Argo Workflows & Pipelines                              #
# CI/CD, Machine Learning, and Other Kubernetes Workflows #
# https://youtu.be/UMaivwrAyTA                            #
###########################################################

# Referenced videos:
# - Argo CD - Applying GitOps Principles To Manage Production Environment In Kubernetes: https://youtu.be/vpWQeoaiRM4
# - Argo Events - Event-Based Dependency Manager for Kubernetes: https://youtu.be/sUPkGChvD54
# - Argo Rollouts - Canary Deployments Made Easy In Kubernetes: https://youtu.be/84Ky0aPbHvY
# - Kaniko - Building Container Images In Kubernetes Without Docker: https://youtu.be/EgwVQN6GNJg

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

# It can be any Kubernetes cluster
minikube start

minikube addons enable ingress

git clone https://github.com/vfarcic/argocd-production.git

cd argocd-production

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 workflows

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

# If NOT using minikube, change the value to whatever is the address in your cluster
export ARGO_WORKFLOWS_HOST=argo-workflows.$(minikube ip).nip.io

cat argo-workflows/base/ingress_patch.json \
    | sed -e "[email protected]@$ARGO_WORKFLOWS_HOST@g" \
    | tee argo-workflows/overlays/production/ingress_patch.json

kustomize build \
    argo-workflows/overlays/production \
    | kubectl apply --filename -

kubectl --namespace argo \
    rollout status \
    deployment argo-server \
    --watch

cd ..

#############
# Workflows #
#############

git clone \
    https://github.com/vfarcic/argo-workflows-demo.git

cd argo-workflows-demo

cat workflows/silly.yaml

cat workflows/parallel.yaml

cat workflows/dag.yaml

#############
# Templates #
#############

cat workflows/cd-mock.yaml

cat workflow-templates/container-image.yaml

kubectl --namespace workflows apply \
    --filename workflow-templates/container-image.yaml

kubectl --namespace workflows \
    get clusterworkflowtemplates

########################
# Submitting workflows #
########################

cat workflows/cd-mock.yaml \
    | sed -e "s@value: vfarcic@value: $REGISTRY_USER@g" \
    | tee workflows/cd-mock.yaml

argo --namespace workflows submit \
    workflows/cd-mock.yaml

argo --namespace workflows list

argo --namespace workflows \
    get @latest

argo --namespace workflows \
    logs @latest \
    --follow

open http://$ARGO_WORKFLOWS_HOST

kubectl --namespace workflows get pods

I follow the steps exactly, is there any reason that open http://$ARGO_WORKFLOWS_HOST render 502 bad gateway?

To avoid it, in argo-server ingress set the path to "/argo(/|$)(.*)", not as it is by design "/" (root directory). See https://argoproj.github.io/argo-workflows/argo-server/#ingress as reference.