yunghoy

https://github.com/kubernetes/dashboard

$ kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml
$ kubectl -n kube-system describe secrets `kubectl -n kube-system get secrets | awk '/clusterrole-aggregation-controller/ {print $1}'` | awk '/token:/ {print $2}'
$ kubectl proxy

$ kubectl get svc -n kube-system
NAME                   TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)         AGE
kube-dns               ClusterIP   10.96.0.10       <none>        53/UDP,53/TCP   39m
kubernetes-dashboard   ClusterIP   xxx.xxx.xxx.xxxx   <none>        443/TCP         31m

yunghoy

curl http://169.254.169.254/latest/meta-data/public-ipv4
curl checkip.amazonaws.com

dig -x $(curl -s checkip.amazonaws.com) +short

yunghoy

COMMAND='echo hello'
if [ ! -z "$1" ]; then
  COMMAND=$1
fi
parallel-ssh -i -h host.list -l ubuntu -x "-oStrictHostKeyChecking=no -i aws.key" $COMMAND

yunghoy

docker service create --name redis --endpoint-mode dnsrr --hostname redis{{.Task.Slot}} --replicas 2 redis

yunghoy

Ubuntu 14.04
/etc/fstab -> tmpfs /tmp tmpfs defaults,noatime,nosuid,nodev,noexec,mode=1777,size=512M 0 0

Ubuntu 16.04
sudo cp /usr/share/systemd/tmp.mount /etc/systemd/system/tmp.mount
sudo systemctl enable tmp.mount
sudo systemctl start tmp.mount

yunghoy

https://help.ubuntu.com/community/BinaryDriverHowto/Nvidia

yunghoy

http://blog.haproxy.com/2012/10/29/haproxy-log-customization/

https://goaccess.io/man#custom-log



Default log format

TCP log format
1

yunghoy

// haproxy
global
  log /dev/log local0

listen http
  log /dev/log local0
  mode http
  capture request header Referer len 128
  capture request header User-Agent len 128
  log-format |%si:%sp|%ci:%cp|%t|%ID|%s|%ST|%B|%Tt|\"%r\"|\"%hr\"|

yunghoy

// haproxy
global
  log /dev/log local0

listen http
  log /dev/log local0
  mode http
  capture request header Referer len 128
  capture request header User-Agent len 128
  log-format |%si:%sp|%ci:%cp|%t|%ID|%s|%ST|%B|\"%r\"|\"%hr\"|

yunghoy

user nobody nogroup;
worker_processes auto;          # auto-detect number of logical CPU cores

events {
  worker_connections 1024;       # set the max number of simultaneous connections (per worker process)
}


http {
	##