From f9094ed7cf7e4358fa347245c2821dcc533af306 Mon Sep 17 00:00:00 2001
From: Sugu Sougoumarane <ssougou@gmail.com>
Date: Fri, 10 Apr 2020 20:24:43 -0700
Subject: [PATCH] helm: improved commands

Signed-off-by: Sugu Sougoumarane <ssougou@gmail.com>
---
 examples/helm/README.md    | 51 ++++++++++++++++++++++++++++++++++++++
 examples/helm/alias.source | 35 ++++++++++++++++++++++++++
 examples/helm/kmysql.sh    | 36 ---------------------------
 3 files changed, 86 insertions(+), 36 deletions(-)
 create mode 100644 examples/helm/README.md
 create mode 100644 examples/helm/alias.source
 delete mode 100755 examples/helm/kmysql.sh

diff --git a/examples/helm/README.md b/examples/helm/README.md
new file mode 100644
index 00000000000..0e13d99dc2f
--- /dev/null
+++ b/examples/helm/README.md
@@ -0,0 +1,51 @@
+# Instructions
+
+Detailed instructions for running this example can be found at https://vitess.io.
+This document contains the summary of the commands to be run.
+
+
+```
+# Start minikube
+minikube start --kubernetes-version v1.15.0 --cpus=4 --memory=5000
+
+# Bring up initial cluster and commerce keyspace
+helm install vitess ../../helm/vitess -f 101_initial_cluster.yaml
+
+# Setup aliases
+source alias.source
+
+# Insert and verify data
+vmysql < ../common/insert_commerce_data.sql
+vmysql --table < ../common/select_commerce_data.sql
+
+# Bring up customer keyspace
+helm upgrade vitess ../../helm/vitess/ -f 201_customer_tablets.yaml
+
+# Initiate move tables
+vclient MoveTables -workflow=commerce2customer commerce customer '{"customer":{}, "corder":{}}'
+
+# Cut-over
+vclient SwitchReads -tablet_type=rdonly customer.commerce2customer
+vclient SwitchReads -tablet_type=replica customer.commerce2customer
+vclient SwitchWrites customer.commerce2customer
+
+# Clean-up
+vclient SetShardTabletControl -blacklisted_tables=customer,corder -remove commerce/0 rdonly
+vclient SetShardTabletControl -blacklisted_tables=customer,corder -remove commerce/0 replica
+vclient SetShardTabletControl -blacklisted_tables=customer,corder -remove commerce/0 master
+vclient ApplyRoutingRules -rules='{}'
+
+# Prepare for resharding
+helm upgrade vitess ../../helm/vitess/ -f 301_customer_sharded.yaml
+helm upgrade vitess ../../helm/vitess/ -f 302_new_shards.yaml
+
+# Reshard
+vclient Reshard customer.cust2cust '0' '-80,80-'
+vclient SwitchReads -tablet_type=rdonly customer.cust2cust
+vclient SwitchReads -tablet_type=replica customer.cust2cust
+vclient SwitchWrites customer.cust2cust
+
+# Down shard 0
+helm upgrade vitess ../../helm/vitess/ -f 306_down_shard_0.yaml
+vclient DeleteShard -recursive customer/0
+```
diff --git a/examples/helm/alias.source b/examples/helm/alias.source
new file mode 100644
index 00000000000..15d203da711
--- /dev/null
+++ b/examples/helm/alias.source
@@ -0,0 +1,35 @@
+function vhostport() {
+  vhost=$(minikube service $1 --url=true --format="{{.IP}}" | tail -n 1)
+  vport=$(minikube service $1 --url=true --format="{{.Port}}" | tail -n 1)
+
+  if [ -z $vport ]; then 
+    # This checks K8s running on an single node by kubeadm
+    if [ $(kubectl get nodes | grep -v NAM | wc -l) -eq 1 -o $(kubectl get nodes | grep -v NAM | grep master | wc -l ) -eq 1 ]; then
+      vhost="127.0.0.1"
+      vport=`kubectl describe service vtgate-zone1 | grep NodePort | grep mysql | awk '{print $3}' | awk -F'/' '{print $1}'`
+    fi
+  fi
+}
+
+function vsetmysql() {
+  vhostport vtgate-zone1
+  if [ -z $vport ]; then
+    echo "Error: failed to obtain [host:port] minikube or kubectl."
+    return 1
+  fi
+  echo "Setting alias vmysql to: mysql -h $vhost -P $vport"
+  alias vmysql="mysql -h $vhost -P $vport"
+}
+
+function vsetvclient() {
+  vhostport vtctld
+  if [ -z $vport ]; then
+    echo "Error: failed to: obtain [host:port] minikube or kubectl."
+    return 1
+  fi
+  echo "Setting alias vclient to vtctlclient -server=$vhost:$vport"
+  alias vclient="vtctlclient -server=$vhost:$vport"
+}
+
+vsetmysql
+vsetvclient
diff --git a/examples/helm/kmysql.sh b/examples/helm/kmysql.sh
deleted file mode 100755
index f9cfaaf80a4..00000000000
--- a/examples/helm/kmysql.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/bin/bash
-
-# Copyright 2019 The Vitess Authors.
-# 
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-# 
-#     http://www.apache.org/licenses/LICENSE-2.0
-# 
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# This is a convenience script to run the mysql client against the local example.
-
-host=$(minikube service vtgate-zone1 --url=true --format="{{.IP}}" | tail -n 1)
-port=$(minikube service vtgate-zone1 --url=true --format="{{.Port}}" | tail -n 1)
-
-if [ -z $port ]; then 
-	#This checks K8s running on an single node by kubeadm
-	if [ $(kubectl get nodes | grep -v NAM | wc -l) -eq 1 -o $(kubectl get nodes | grep -v NAM | grep master | wc -l ) -eq 1 ]; then
-		host="127.0.0.1"
-		port=`kubectl describe service vtgate-zone1 | grep NodePort | grep mysql | awk '{print $3}' | awk -F'/' '{print $1}'`
-	fi
-fi
-
-if [ -z $port ]; then
-	echo "Error: failed to obtain [host:port] minikube or kubectl."
-	exit 1;
-
-fi
-
-mysql -h "$host" -P "$port" $*