Bash Aliases / helper functions

.bash_aliases

# Bash helpers
alias '...'='cd ../..'
alias '....'='cd ../../..'
alias '.....'='cd ../../../..'

function announce () {
  printf "\n###### $1 ######\n\n"
}

# SSH helpers
alias sshtun='ssh -D 1337 -f -C -q -N user@host -p port'

# Git helpers
ga () {
  announce "Running git add -A $@"
  git add -A
}
gs () {
  announce "Running git status"
  git status
}
gc () {
  announce "Running git commit -m $1"
  git commit -m "$1"
}
gl () {
  announce "Running git log --pretty=oneline"
  git log --pretty=oneline
}
gd () {
  announce "Running git diff $@"
  git diff $@
}
gr () {
  announce "Running git reset $@"
  git reset $@
}
gpl () {
  if [ $# -gt 0 ]; then
    local BRANCH=$1
    shift
  fi

  if [ -n $BRANCH ]; then
    announce "Running git pull origin ${BRANCH:-master} $@"
    git pull origin ${BRANCH:-master} $@
  else
    announce "Running git pull $@"
    git pull $@
  fi
}
gpu () {
  if [ $# -gt 0 ]; then
    local BRANCH=$1
    shift
  fi

  if [ -n $BRANCH ]; then
    announce "Running git push origin ${BRANCH:-master} $@"
    git push origin ${BRANCH:-master} $@
  else
    announce "Running git push $@"
    git push $@
  fi
}
gst () {
  announce "Running git stash $@"
  git stash $@
}
gplr () {
  if [ $# -gt 0 ]; then
    local BRANCH=$1
    shift
  fi

  if [ -n $BRANCH ]; then
    announce "Running git pull --rebase origin ${BRANCH:-master} $@"
    git pull --rebase origin ${BRANCH:-master} $@
  else
    announce "Running git pull --rebase $@"
    git pull --rebase $@
  fi
}

# Kubectl helpers
ksn () {
  announce "Running kubectl config set-context --current --namespace=\"$@\""
  kubectl config set-context --current --namespace=$@
}
kgp () {
  announce "Running kubectl get pods $@"
  kubectl get pods $@
}
kgs () {
  announce "Running kubectl get services $@"
  kubectl get services $@
}
kcg () {
  announce "Running kubectl config get-contexts $@"
  kubectl config get-contexts $@
}
kcs () {
  announce "Running kubectl config use-context $@"
  kubectl config use-context $@
}
kl () {
  announce "Running kubectl logs -f $@"
  kubectl logs -f $@
}
ke () {
  POD=`shift`
  announce "Running kubectl exec -it $POD $@"
  kubectl exec -it $POD $@
}
ka () {
  announce "Running kubectl apply -f $@"
  kubectl apply -f $@
}
kd () {
  announce "Running kubectl delete -f $@"
  kubectl delete -f $@
}
kdep () {
  local OPTIND opt NAMESPACE IMAGE CMD

  while getopts ":hn:i:c:" opt; do
    case "${opt}" in
      n)
        NAMESPACE=$OPTARG
        [ -z "$NAMESPACE" ] && echo "Invalid value for -n" && exit 1
        ;;
      i)
        IMAGE=$OPTARG
        [ -z "$IMAGE" ] && echo "Invalid value for -i" && exit 1
        ;;
      c)
        CMD=$OPTARG
        [ -z "$CMD" ] && echo "Invalid value for -c" && exit 1
        ;;
      h)
        echo "Deploy a bastion pod to kubernetes, exec into it, then remove it again."
        echo
        echo "Usage: kdep [-h|-n|-c|-i]"
        echo
        echo "-h show this help message"
        echo "-n=namespace [default]"
        echo "-i=docker_image [byrnedo/alpine-curl]"
        echo "-c=command_to_run [sh]"
        return 0
        ;;
      \?)
        echo "Invalid option: -$OPTARG" >&2
        return 1
        ;;
    esac
  done

  announce "Deploying bastion pod to Kubernetes. Namespace: $NAMESPACE. Image: $IMAGE. Cmd: $CMD."

  printf "apiVersion: v1\nkind: Pod\nmetadata:\n  name: bastion-pod\n  namespace: ${NAMESPACE:-default}\nspec:\n  containers:\n  - image: ${IMAGE:-byrnedo/alpine-curl}\n    command:\n      - sleep\n      - \"3600\"\n    imagePullPolicy: IfNotPresent\n    name: bastion-pod\n  restartPolicy: Always" | kubectl create -f -

  sleep 10
  kubectl exec -it --namespace ${NAMESPACE:-default} bastion-pod ${CMD:-sh}
  kubectl delete pod --namespace ${NAMESPACE:-default} bastion-pod
}
kenv () {
  local OPTIND opt NAMESPACE DEPLOYMENT ENVVAR

  help () {
    echo "Fetch the env vars from a running pod"
    echo
    echo "Usage: kenv [-h|-n|-d|-e]"
    echo
    echo "-h show this help message"
    echo "-n=namespace [default]"
    echo "-d=deployment_name"
    echo "-e=env_var_filter"
  }

  while getopts ":hn:d:e:" opt; do
    case "${opt}" in
      n)
        NAMESPACE=$OPTARG
        [ -z "$NAMESPACE" ] && echo "Invalid value for -n" && return 1
        ;;
      d)
       DEPLOYMENT=$OPTARG
        [ -z "$DEPLOYMENT" ] && echo "Invalid value for -d" && return 1
        ;;
      e)
       ENVVAR=$OPTARG
        [ -z "$ENVVAR" ] && echo "Invalid value for -e" && return 1
        ;;
      h)
        help
        return 0
        ;;
      \?)
        echo "Invalid option: -$OPTARG" >&2
        return 1
        ;;
    esac
  done

  if [ -z "$DEPLOYMENT" ]; then
    echo "ERROR: Must provide -d option to specify the deployment name"
    echo ""
    help
    return 1
  fi

  local POD_NAME=`kubectl get pods -n ${NAMESPACE:-default} | grep ${DEPLOYMENT} | awk '{print $1}' | tail -n 1`

  if [ -z "$POD_NAME" ] || [ $POD_NAME == "No resources found." ]; then
    return 1
  fi

  if [ -z "$NAMESPACE" ]; then
    NAMESPACE=default
  fi

  local ENVS=`kubectl exec -it -n $NAMESPACE ${POD_NAME} env`

  if [ -n "$ENVVAR" ]; then
    ENVS=`echo "$ENVS" | grep ${ENVVAR}`
  fi

  echo "$ENVS"
}

# Docker helpers
dkillall () {
  announce "Killing all running docker containers"

  local RUNNING_CONTAINERS=$(docker ps -q)
  [ -z "$RUNNING_CONTAINERS" ] && return 0

  docker kill "$RUNNING_CONTAINERS"
}
dcleanc () {
  announce "Removing all stopped docker containers"

  local STOPPED_CONTAINERS=$(docker ps -a -q)
  [ -z "$STOPPED_CONTAINERS" ] && return 0

  docker rm "$STOPPED_CONTAINERS"
}
dcleani () {
  announce "Removing untagged docker images"

  local UNTAGGED_IMAGES=$(docker images -q -f dangling=true)
  [ -z "$UNTAGGED_IMAGES" ] && return 0

  docker rmi "$UNTAGGED_IMAGES"
}
dcleanv () {
  announce "Removing docker volumes"

  local VOLUMES=$(docker volume ls -q)
  [ -z "$VOLUMES" ] && return 0

  docker volume rm "$VOLUMES"
}
dclean () {
  dcleanc
  dcleani
  dcleanv
}

shortcuts () {
  echo "Bash helpers
============
...       | move up 2 folders
....      | move up 3 folders
announce  | print a message

SSH helpers
===========
sshtun    | tunnel port 1337 through the RapidSwitch server

Git helpers
===========
ga        | git add -A
gs        | git status
gc        | git commit -m
gl        | git log
gpl       | git pull
gpu       | git push
gst       | git stash
gplr      | git pull --rebase

Kubectl helpers
===============
ksn       | kubectl config set-context --current --namespace=
kgp       | kubectl get pods
kgs       | kubectl get services
kcg       | kubectl config get
kcs       | kubectl config use
kl        | kubectl logs -f
ke        | kubectl exec
ka        | kubectl apply
kd        | kubectl delete
kdep      | deploy bastion. use -h
kenv      | Get env vars from deployment. use -h

Docker helpers
==============
dkillall  | kill running containers
dcleanc   | remove stopped containers
dcleani   | remove untagged images
dcleanv   | remove volumes
dclean    | run all the above

"
}

alias john='/home/carl/john/john'