diff --git a/op-guide/clustering.md b/op-guide/clustering.md
new file mode 100644
index 0000000000000..401f5bc64b835
--- /dev/null
+++ b/op-guide/clustering.md
@@ -0,0 +1,111 @@
+# Clustering
+
+## Overview
+
+A complete TiDB project contains PD, TiKV, TiDB. The start-up sequence is PD -> TiKV -> TiDB.
+
+## A standalone cluster
+
+1. Start PD.
+
+    ```bash
+    pd-server --cluster-id=1 \
+              --data-dir=pd
+    ```
+    
+2. Start TiKV.
+
+    ```bash
+    tikv-server -I 1 \
+                -S raftkv \
+                --pd 127.0.0.1:2379 \
+                -s tikv
+    ```
+
+3. Start TiDB.
+
+    ```bash
+    tidb-server --store=tikv \
+                --path="127.0.0.1:2379?cluster=1" 
+    ```
+
+4. Use the official `mysql` client to connect to TiDB and enjoy it. 
+
+    ```sh
+    mysql -h 127.0.0.1 -P 4000 -u root -D test
+    ```
+
+## A 3-node multi-machine cluster
+
+Assume we have three machines with the following details:
+
+|Name|Host IP|
+|----|-------|
+|node1|192.168.199.113|
+|node2|192.168.199.114|
+|node3|192.168.199.115|
+
+We run PD and TiKV on every node and TiDB on node1 only.
+
+1. Start PD on every node.
+
+    ```bash
+    pd-server --cluster-id=1 \
+              --name=pd1 \
+              --data-dir=pd1 \
+              --addr="192.168.199.113:1234" \
+              --client-urls="http://192.168.199.113:2379" \
+              --peer-urls="http://192.168.199.113:2380" \
+              --initial-cluster="pd1=http://192.168.199.113:2380,pd2=http://192.168.199.114:2380,pd3=http://192.168.199.115:2380"
+              
+    pd-server --cluster-id=1 \
+              --name=pd2 \
+              --data-dir=pd2 \
+              --addr="192.168.199.114:1234" \
+              --client-urls="http://192.168.199.114:2379" \
+              --peer-urls="http://192.168.199.114:2380" \
+              --initial-cluster="pd1=http://192.168.199.113:2380,pd2=http://192.168.199.114:2380,pd3=http://192.168.199.115:2380"
+              
+    pd-server --cluster-id=1 \
+              --name=pd3 \
+              --data-dir=pd3 \
+              --addr="192.168.199.115:1234" \
+              --client-urls="http://192.168.199.115:2379" \
+              --peer-urls="http://192.168.199.115:2380" \
+              --initial-cluster="pd1=http://192.168.199.113:2380,pd2=http://192.168.199.114:2380,pd3=http://192.168.199.115:2380"
+    ```
+
+2. Start TiKV on every node.
+
+    ```bash
+    tikv-server -S raftkv \
+                -I 1 \
+                --pd 192.168.199.113:2379,192.168.199.114:2379,192.168.199.115:2379 \
+                --addr 192.168.199.113:20160 \
+                -s tikv1
+    
+    tikv-server -S raftkv \
+                -I 1 \
+                --pd 192.168.199.113:2379,192.168.199.114:2379,192.168.199.115:2379 \
+                --addr 192.168.199.114:20160 \
+                -s tikv2
+                
+    tikv-server -S raftkv \
+                -I 1 \
+                --pd 192.168.199.113:2379,192.168.199.114:2379,192.168.199.115:2379 \
+                --addr 192.168.199.115:20160 \
+                -s tikv3
+    ```
+
+3. Start TiDB on node1.
+
+    ```bash
+    tidb-server --store=tikv \
+                --path="192.168.199.113:2379,192.168.199.114:2379,192.168.199.115:2379?cluster=1"
+    ```
+
+4. Use the official `mysql` client to connect to TiDB and enjoy it. 
+
+    ```sh
+    mysql -h 192.168.199.113 -P 4000 -u root -D test
+    ```
diff --git a/op-guide/docker.md b/op-guide/docker.md
new file mode 100644
index 0000000000000..e6f76a54957d7
--- /dev/null
+++ b/op-guide/docker.md
@@ -0,0 +1,162 @@
+# Docker
+
+## Run with `docker-compose`
+
+A simple `docker-compose.yml`:
+
+
+```bash
+version: '2'
+
+services:
+  pd1:
+    image: pingcap/pd
+    ports:
+      - "1234"
+      - "9090"
+      - "2379"
+      - "2380"
+
+    command:
+      - --cluster-id=1 
+      - --name=pd1 
+      - --client-urls=http://0.0.0.0:2379
+      - --peer-urls=http://0.0.0.0:2380
+      - --advertise-client-urls=http://pd1:2379
+      - --advertise-peer-urls=http://pd1:2380
+      - --initial-cluster=pd1=http://pd1:2380,pd2=http://pd2:2380,pd3=http://pd3:2380
+      - --addr=0.0.0.0:1234
+      - --advertise-addr=pd1:1234
+      
+    privileged: true
+
+  pd2:
+    image: pingcap/pd
+    ports:
+      - "1234"
+      - "9090"
+      - "2379"
+      - "2380"
+
+    command:
+      - --cluster-id=1 
+      - --name=pd2 
+      - --client-urls=http://0.0.0.0:2379
+      - --peer-urls=http://0.0.0.0:2380
+      - --advertise-client-urls=http://pd2:2379
+      - --advertise-peer-urls=http://pd2:2380
+      - --initial-cluster=pd1=http://pd1:2380,pd2=http://pd2:2380,pd3=http://pd3:2380
+      - --addr=0.0.0.0:1234
+      - --advertise-addr=pd2:1234
+      
+    privileged: true
+
+  pd3:
+    image: pingcap/pd
+    ports:
+      - "1234"
+      - "9090"
+      - "2379"
+      - "2380"
+
+    command:
+      - --cluster-id=1 
+      - --name=pd3 
+      - --client-urls=http://0.0.0.0:2379
+      - --peer-urls=http://0.0.0.0:2380
+      - --advertise-client-urls=http://pd3:2379
+      - --advertise-peer-urls=http://pd3:2380
+      - --initial-cluster=pd1=http://pd1:2380,pd2=http://pd2:2380,pd3=http://pd3:2380 
+      - --addr=0.0.0.0:1234
+      - --advertise-addr=pd3:1234
+      
+    privileged: true
+
+  tikv1:
+    image: pingcap/tikv
+    ports:
+      - "20160"
+
+    command:
+      - --cluster-id=1
+      - --addr=0.0.0.0:20160
+      - --advertise-addr=tikv1:20160
+      - --dsn=raftkv
+      - --store=/var/tikv
+      - --pd=pd1:2379,pd2:2379,pd3:2379
+
+    depends_on:
+      - "pd1"
+      - "pd2"
+      - "pd3"
+
+    entrypoint: /tikv-server
+
+    privileged: true
+
+  tikv2:
+    image: pingcap/tikv
+    ports:
+      - "20160"
+
+    command:
+      - --cluster-id=1
+      - --addr=0.0.0.0:20160
+      - --advertise-addr=tikv2:20160
+      - --dsn=raftkv
+      - --store=/var/tikv
+      - --pd=pd1:2379,pd2:2379,pd3:2379
+
+    depends_on:
+      - "pd1"
+      - "pd2"
+      - "pd3"
+
+    entrypoint: /tikv-server
+
+    privileged: true
+
+  tikv3:
+    image: pingcap/tikv
+    ports:
+      - "20160"
+
+    command:
+      - --cluster-id=1
+      - --addr=0.0.0.0:20160
+      - --advertise-addr=tikv3:20160
+      - --dsn=raftkv
+      - --store=/var/tikv
+      - --pd=pd1:2379,pd2:2379,pd3:2379
+
+    depends_on:
+      - "pd1"
+      - "pd2"
+      - "pd3"
+
+    entrypoint: /tikv-server
+
+    privileged: true
+
+  tidb:
+    image: pingcap/tidb
+    ports:
+      - "4000"
+
+    command:
+      - --store=tikv 
+      - --path=pd1:2379,pd2:2379,pd3:2379?cluster=1
+      - -L=warn
+
+    depends_on:
+      - "tikv1"
+      - "tikv2"
+      - "tikv3"
+
+    privileged: true
+```
+
++ Use `docker-compose up -d` to create and start the cluster. 
++ Use `docker-compose port tidb 4000` to print the TiDB public port. For example, if the output is `0.0.0.0:32966`, the TiDB public port is `32966`.
++ Use `mysql -h 127.0.0.1 -P 32966 -u root -D test` to connect to TiDB and enjoy it. 
++ Use `docker-compose down` to stop and remove the cluster.
\ No newline at end of file
diff --git a/scripts/build.sh b/scripts/build.sh
index cb07fb74edcb6..7e441660581ec 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -3,7 +3,7 @@
 set -e 
 
 # Use current path for building and installing TiDB. 
-TIDB_PATH=`PWD`
+TIDB_PATH=`pwd`
 echo "building TiDB components in $TIDB_PATH"
 
 # All the binaries are installed in the `bin` directory. 
@@ -25,7 +25,7 @@ rustc -V
 # GOPATH should be set correctly.
 export GOPATH=$TIDB_PATH/deps/go
 
-build TiDB
+# build TiDB
 echo "building TiDB..."
 rm -rf $GOPATH/src/github.com/pingcap/tidb
 git clone --depth=1 https://github.com/pingcap/tidb.git $GOPATH/src/github.com/pingcap/tidb