Obfuscates
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Toolbox | bashrc

Obfuscate

I load a lot of custom commands and functions in bashrc in order to make life easier in the long run. Below is a short list of the items i use often. 

################### Functions ######################################
function clus_init {
  echo "################################### CLUSTER INFO ###############################################################"
  kubectl cluster-info | head -n 1
  echo ""
  kubectl top no
  echo ""

  RUN=0  # How many total pods running
  TER=1  # Pod terminating or crashlooping
  PEN=0  # Pods Pending 
  IMG=0  # Pods with Image issues 
  CON=0  # Pods with configuration errors
  STA=0  # Pods starting up 

  pods=$(kubectl get po -A)
  mapfile -t table_array < <(awk '{split($0, row, " "); print row[4] }' <<< "$pods")
  for row in "${table_array[@]}"; do
    RUN=$(($RUN+1))
    case $row in
      Terminating | CrashLoopBackOff)
        TER=$(($TER+1))
        ;;
      ImagePullBackOff | ErrImagePull)
        IMG=$(($IMG+1))
        ;;
      CreateContainerConfigError | Error)
        CON=$(($CON+1))
        ;;
      Pending)
        PEN=$(($PEN+1))
        ;;
      ContainerCreating)
        STA=$(($STA+1))
        ;;
    esac
  done

  echo "Tot Pods: $RUN | Pods Starting: $STA | Config Errors: $CON | Term or Crash: $TER | Image Issues: $IMG | Pending: $PEN"
  echo "################################### CLUSTER INFO ###############################################################"

}

#################### ALIASES #########################################
alias argo='argocd'
alias egrep='egrep --color=auto'
alias fgrep='fgrep --color=auto'
alias grep='grep --color=auto'
alias tf='terraform'
alias l='ls -CF'
alias la='ls -A'
alias ll='ls -lachF'
alias ls='ls --color=auto'
alias v='velero'
alias watch='watch -n .2 -d'
alias k='kubectl'
alias kc='kubectl config set-cluster'
alias kn='kubectl config set-context --current --namespace'

##################### Kube Configs ######################################
alias <ClusterName>='export KUBECONFIG=~/.kube/<config-file> && clus_init'

The above profile sets up all my preferred aliases. Also, when I change clusters I get a nice status update of the cluster before I start working it. The output from switching clusters by using the alias name: 

################################### CLUSTER INFO ###############################################################
Kubernetes control plane is running at https://<ULRToClusterEndpoint>

NAME      CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   
Node 01   1517m        18%    9288Mi          29%       
Node 02   411m         10%    4168Mi          26%       
Node 03   245m         3%     10208Mi         32%       
Node 04   812m         20%    4731Mi          30%       
Node 05   2412m        30%    8788Mi          28%       
Node 06   329m         8%     3253Mi          20%       
Node 07   4159m        51%    19658Mi         62%       

Tot Pods: 173 | Pods Starting: 0 | Config Errors: 2 | Term or Crash: 1 | Image Issues: 17 | Pending: 0
################################### CLUSTER INFO ###############################################################

I may switch over to kubectl get no -o wide versus kubectl top no if I find this doesn’t help much, but at the time it works.

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