DStorck

#oh the variables we we will use !!
days_in_a_year =  365.245

minutes_in_a_year = 60 * 24 * days_in_a_year
#this time business was all new to me but i tried to set it for my birthday in NYC
my_age = Time.new(1980,9,7, 19, 44, 00, -0500)
now = Time.now
my_age_in_seconds = now - my_age

seconds_in_a_day = 60 * 60 * 24

DStorck

Common gcloud commands

gcloud auth list - see a list of credentialed accounts

gcloud components list - see available components and whether or not they are installed

gcloud components install COMPONENT_ID . - install it

gcloud config list - show active configuration

DStorck

# make secret with kubectl create secret generic my-secret --from-literal=key1=supersecret

# to use secret in a env var
apiVersion: v1
kind: Pod
metadata:
  name: pod-secrets-to-env
  namespace: default
spec:
  containers:

DStorck

filter kubernetes response with kubectl

make file with all results , then filter into new file

kubectl get nodes > all_nodes.txt

cat all_nodes.txt | while read line ; do if [[ $line == *"sobusy"* ]]; then echo $line; fi; done > filtered_nodes.txt

filter results by search criteria

kubectl logs <pod> <search_criteria> > some_file.txt

DStorck

systemctl commands

systemctl enable # tell systemd to start service at boot

systemctl edit kubelet.service # or vi /etc/systemd/system/kubelet.service

systemctl daemon-reload

systemctl restart kubelet.service

DStorck

kind: NetworkPolicy
apiVersion: extensions/v1beta1
metadata:
  name: access-nginx
  namespace: secret
spec:
  podSelector:
    matchLabels:
      run: nginx
  ingress:

DStorck

# simple pv 

kind: PersistentVolume
apiVersion: v1
metadata:
  name: task-pv-volume
  labels:
    type: local
spec:
  storageClassName: manual