Dallas Kubernetes Workshop - Logging

dallas-k8s-workshop-logging.sh

# perform the commands from this lab environment:
# https://studyk8s.club/cka-logging

# create a pod that will output logs to stdout
cat << EOF > pod-logging.yaml
apiVersion: v1
kind: Pod
metadata:
  name: pod-logging
spec:
  containers:
  - name: main
    image: busybox
    args: [/bin/sh, -c, 'while true; do echo $(date); sleep 1; done']
EOF

# create a pod with a sidecar
cat << EOF > pod-logging-sidecar.yaml
apiVersion: v1
kind: Pod
metadata:
  name: pod-logging-sidecar
spec:
  containers:
  - image: busybox
    name: main
    args: [ 'sh', '-c', 'while true; do echo "$(date)\n" >> /var/log/main-container.log; sleep 5; done' ]
    volumeMounts:
      - name: varlog
        mountPath: /var/log
  - name: sidecar
    image: busybox
    args: [ /bin/sh, -c, 'tail -f /var/log/main-container.log' ]
    volumeMounts:
      - name: varlog
        mountPath: /var/log
  volumes:
    - name: varlog
      emptyDir: {}
EOF

# create a mysql deployment
k create deploy mysql --image mysql:8

# fix the mysql deployment
# add the following to the deployment YAML
# env:
# - name: MYSQL_PASSWORD
#   value: password