114-troubleshoot.sh

# Referenced videos:
# - How to run local multi-node Kubernetes clusters using kind: https://youtu.be/C0v5gJSWuSo

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

# A kubectl plugin providing diagnostic tools for Kubernetes applications

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

cd troubleshoot-demo

# Please watch https://youtu.be/C0v5gJSWuSo if you are not familiar with kind
# Feel free to use any other Kubernetes platform
kind create cluster --config kind.yaml

# If not using kind, change the command to the one valid for your Kubernetes distribution
kubectl apply \
    --filename https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/provider/kind/deploy.yaml

kubectl --namespace ingress-nginx \
    rollout status \
    deployment ingress-nginx-controller

kubectl create namespace production

kubectl --namespace production \
    apply --filename k8s

# Install Krew (https://krew.sigs.k8s.io/docs/user-guide/setup/install/) if you do not have it already

kubectl krew install preflight

kubectl krew install support-bundle

#####################
# Preflights checks #
#####################

kubectl preflight preflight.yaml

cat preflight.yaml

kubectl preflight preflight.yaml \
    --namespace production

# Open https://troubleshoot.sh/docs/analyze/

#####################
# Fixing the issues #
#####################

cat kind-new.yaml

kind delete cluster

kind create cluster \
    --config kind-new.yaml

kubectl apply \
    --filename https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/provider/kind/deploy.yaml

kubectl --namespace ingress-nginx \
    rollout status \
    deployment ingress-nginx-controller

kubectl create namespace production

kubectl --namespace production \
    apply --filename k8s

kubectl preflight preflight.yaml \
    --namespace production

#############################
# Creating a support bundle #
#############################

cat support-bundle.yaml

# Open https://troubleshoot.sh/docs/collect/all/

kubectl support-bundle \
    support-bundle.yaml \
    --namespace production

# Replace `[...]` with the name of the bundle (from the output of the previous command) without including the `.tar.gz` extension (e.g., support-bundle-2021-09-02T00_23_23)
export BUNDLE=[...]

tar -xzvf $BUNDLE.tar.gz

ls -1 $BUNDLE/

cat $BUNDLE/cluster-info/cluster_version.json

ls -1 $BUNDLE/cluster-resources

cat $BUNDLE/cluster-resources/pods/production.json

cat $BUNDLE/cluster-resources/ingress/production.json

cat $BUNDLE/*.log

# Open https://troubleshoot.sh/docs/redact/

###########
# Destroy #
###########

kind delete cluster