ArgoCD in 5 minutes

argocd-5-minutes.sh

# Install argocd CLI.
wget https://github.com/argoproj/argo-cd/releases/download/v2.2.5/argocd-linux-amd64 -O ~/.local/bin/argocd && chmod +x ~/.local/bin/argocd

# Run a minikube instance.
export CLUSTER_NAME="test-argocd"
minikube start --profile "${CLUSTER_NAME}"

# Deploy argocd in the `argocd` ns.
kubectl create namespace argocd
kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml

# argocd uses CRDs
kubectl get crd -n argocd | grep argo
# applications.argoproj.io              2022-02-17T09:02:33Z
# appprojects.argoproj.io               2022-02-17T09:02:33Z


# Switch to the `argocd` ns to allow ./argocd to work
#  on a given cluster
kubectl config set-context --current --namespace=argocd
./argocd cluster add "${CLUSTER_NAME}" 

./argocd app create guestbook \
   --repo https://github.com/ioggstream/argocd-example-apps.git \
   --path guestbook \
   --dest-server https://kubernetes.default.svc \
   --dest-namespace default

# This will create under `argocd` ns various CRDs.
kubectl get applications.argoproj.io -n argocd
# NAME        SYNC STATUS   HEALTH STATUS
# guestbook   Synced        Healthy

# List the apps
./argocd app list

# Download the guestbook app on the argocd.
./argocd app get guestbook

# Deploy the guestbook app on the `default` ns
./argocd app sync guestbook

# NAME        SYNC STATUS   HEALTH STATUS
# guestbook   Synced        Healthy

# Check the deployment on the cluster.
kubectl get pods -n default
kubectl get pods -n default guestbook-ui

# Edit the guestbook app on the repo.
# https://github.com/ioggstream/argocd-example-apps.git
# and sync the changes to the argocd.
./argocd app sync guestbook

# Now it's healthy.
kubectl get applications.argoproj.io -n argocd

# Check the deployment on the cluster.


# Revert to the default ns.
kubectl config set-context --current --namespace=default