tschaffner-te

cheatsheet

• https://kubernetes.io/docs/user-guide/kubectl-cheatsheet/
• https://learnk8s.io/blog/kubectl-productivity/
• https://gist.github.com/so0k/42313dbb3b547a0f51a547bb968696ba
• https://speakerdeck.com/so0k/kubectl-tips-and-tricks
• https://github.com/dennyzhang/cheatsheet-kubernetes-A4
• https://medium.com/bitnami-perspectives/imperative-declarative-and-a-few-kubectl-tricks-9d6deabdde
• http://blog.kubernetes.io/2015/10/some-things-you-didnt-know-about-kubectl_28.html
• https://coreos.com/blog/kubectl-tips-and-tricks

tschaffner-te

# Count total EBS based storage in AWS
aws ec2 describe-volumes | jq "[.Volumes[].Size] | add"
# Count total EBS storage with a tag filter
aws ec2 describe-volumes --filters "Name=tag:Name,Values=CloudEndure Volume qjenc" | jq "[.Volumes[].Size] | add"
# Describe instances concisely
aws ec2 describe-instances | jq '[.Reservations | .[] | .Instances | .[] | {InstanceId: .InstanceId, State: .State, SubnetId: .SubnetId, VpcId: .VpcId, Name: (.Tags[]|select(.Key=="Name")|.Value)}]'
# Wait until $instance_id is running and then immediately stop it again
aws ec2 wait instance-running --instance-id $instance_id && aws ec2 stop-instances --instance-id $instance_id

# Get 10th instance in the account

tschaffner-te

wget http://stedolan.github.io/jq/download/linux64/jq 
aws ec2 describe-instances --filters "Name=tag:Name,Values=$NAME" \
  "Name=instance-state-name,Values=running" \
  |  jq -r \
  ".Reservations[] | .Instances[] | .InstanceId" \

aws ec2 describe-volumes --filters \
  "Name=status,Values=available" \
  | jq -r ".Volumes[] | .VolumeId" \