vitess-gh/examples/kubernetes/vttablet-down.sh

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#!/bin/bash
# This is an example script that tears down the vttablet pods started by
# vttablet-up.sh.
set -e
script_root=`dirname "${BASH_SOURCE}"`
source $script_root/env.sh
echo "Starting port forwarding to vtctld..."
start_vtctld_forward
trap stop_vtctld_forward EXIT
VTCTLD_ADDR="localhost:$vtctld_forward_port"
# Delete the pods for all shards
CELLS=${CELLS:-'test'}
keyspace='test_keyspace'
SHARDS=${SHARDS:-'0'}
TABLETS_PER_SHARD=${TABLETS_PER_SHARD:-5}
UID_BASE=${UID_BASE:-100}
VITESS_NAME=${VITESS_NAME:-'default'}
num_shards=`echo $SHARDS | tr "," " " | wc -w`
uid_base=$UID_BASE
cells=`echo $CELLS | tr ',' ' '`
num_cells=`echo $cells | wc -w`
for shard in `seq 1 $num_shards`; do
[[ $num_cells -gt 1 ]] && cell_index=100000000 || cell_index=0
for cell in $cells; do
for uid_index in `seq 0 $(($TABLETS_PER_SHARD-1))`; do
uid=$[$uid_base + $uid_index + $cell_index]
printf -v alias '%s-%010d' $cell $uid
if [ -n "$VTCTLD_ADDR" ]; then
set +e
echo "Removing tablet $alias from Vitess topology..."
vtctlclient -server $VTCTLD_ADDR DeleteTablet -allow_master -skip_rebuild $alias
set -e
fi
echo "Deleting pod for tablet $alias..."
$KUBECTL delete pod vttablet-$uid --namespace=$VITESS_NAME
done
let cell_index=cell_index+100000000
done
let uid_base=uid_base+100
done