Update ansible and aws docs.

Change-Id: I2bf4dab747a149f6fd9f1a74cf862043171cf03e
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1647
Reviewed-by: Yingyi Bu <buyingyi@gmail.com>
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
diff --git a/asterixdb/asterix-doc/pom.xml b/asterixdb/asterix-doc/pom.xml
index 16db906..b7fc379 100644
--- a/asterixdb/asterix-doc/pom.xml
+++ b/asterixdb/asterix-doc/pom.xml
@@ -61,6 +61,12 @@
                 <concat destfile="${project.build.directory}/generated-site/markdown/aql/builtins.md">
                   <filelist dir="${project.basedir}/src/main/markdown/builtins" files="0_toc.md,1_numeric.md,2_string.md,3_binary.md,4_spatial.md,5_similarity.md,6_tokenizing.md,7_temporal.md,7_allens.md,8_record.md,9_aggregate_aql.md,10_comparison.md,11_type.md,12_misc.md" />
                 </concat>
+                <concat destfile="${project.build.directory}/generated-site/markdown/ansible.md">
+                  <filelist dir="${project.basedir}/src/main/installation/" files="ansible_title.md,ansible.md" />
+                </concat>
+                <concat destfile="${project.build.directory}/generated-site/markdown/aws.md">
+                  <filelist dir="${project.basedir}/src/main/installation/" files="aws_title.md,aws.md" />
+                </concat>
               </target>
             </configuration>
             <goals>
diff --git a/asterixdb/asterix-doc/src/main/installation/ansible.md b/asterixdb/asterix-doc/src/main/installation/ansible.md
new file mode 100644
index 0000000..056871f
--- /dev/null
+++ b/asterixdb/asterix-doc/src/main/installation/ansible.md
@@ -0,0 +1,131 @@
+<!--
+ ! Licensed to the Apache Software Foundation (ASF) under one
+ ! or more contributor license agreements.  See the NOTICE file
+ ! distributed with this work for additional information
+ ! regarding copyright ownership.  The ASF licenses this file
+ ! to you 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.
+ !-->
+
+## <a id="Introduction">Introduction</a>
+This installation option provides several wrapped [Ansible](https://www.ansible.com/)-based
+scripts to deploy, start, stop, and erase an AsterixDB instance on a multi-node cluster without requiring
+users to interact with each individual node in the cluster.
+
+## <a id="Prerequisites">Prerequisites</a>
+  *  Supported operating systems: **Linux** and **MacOS**
+
+  *  Install pip on your client machine:
+
+     CentOS
+
+        $ sudo yum install python-pip
+
+     Ubuntu
+
+        $ sudo apt-get install python-pip
+
+     macOS
+
+        $ brew install pip
+
+  *  Install Ansible, boto, and boto3 on your client machine:
+
+        $ pip install ansible
+        $ pip install boto
+        $ pip install boto3
+
+     Note that you might need `sudo` depending on your system configuration.
+
+     **Make sure that the version of Ansible is no less than 2.2.1.0**:
+
+        $ ansible --version
+        ansible 2.2.1.0
+
+  *  Download the AsterixDB distribution package, unzip it, and navigate to `opt/ansible/`
+
+        $ cd opt/ansible
+
+     The following files and directories are in the directory `opt/ansible`:
+
+        README  bin  conf  yaml
+
+     `bin` contains scripts that deploy, start, stop and erase a multi-node AsterixDB cluster, according to
+     the configuration specified in files under `conf`, and `yaml` contains internal Ansible scripts that the shell
+     scripts in `bin` use.
+
+
+## <a id="config">Cluster Configuration</a>
+
+  *  **Nodes and account**. Edit the inventory file `conf/inventory` when necessary.
+     You mostly only need to specify the node DNS names (or IPs) for the cluster controller, i.e., the master node,
+     in the **[cc]** section, and node controllers, i.e., slave nodes, in the **[ncs]** section.
+     The following example configures a cluster with two slave nodes (172.0.1.11 and 172.0.1.12) and
+     one master node (172.0.1.10).
+
+        [cc]
+        172.0.1.10
+
+        [ncs]
+        172.0.1.11
+        172.0.1.12
+
+     **Configure passwordless ssh from your current client that runs the scripts to all nodes listed
+     in `conf/inventory` as well as `localhost`.**
+     If the ssh user account for target machines is different from your current username, please uncomment
+     and edit the following two lines:
+
+        ;[all:vars]
+        ;ansible_ssh_user=<fill with your ssh account username>
+
+     If you want to specify advanced Ansible builtin variables, please refer to the
+     [Ansible documentation](http://docs.ansible.com/ansible/intro_inventory.html).
+
+  *  **Remote working directories**. Edit `conf/instance_settings.yml` to change the remote binary directories
+     when necessary. By default, the binary directory will be under the home directory (as the value of
+     Ansible builtin variable ansible_env.HOME) of the ssh user account on each node.
+
+        # The name of the product being used.
+        product: asterixdb
+
+        # The parent directory for the working directory.
+        basedir: "{{ ansible_env.HOME }}"
+
+        # The working directory.
+        binarydir: "{{ basedir }}/{{ product }}"
+
+
+## <a id="lifecycle">Cluster Lifecycle Management</a>
+  *  Deploy the binary to all nodes:
+
+        $ bin/deploy.sh
+
+  *  Every time before starting the AsterixDB cluster, you can edit the instance configuration file
+     `conf/instance/cc.conf`, except that IP addresses/DNS names are generated and cannot
+     be changed. All available parameters and their usage can be found [here](ncservice.html#Parameters).
+
+  *  Launch your AsterixDB cluster:
+
+        $ bin/start.sh
+
+     Now you can use the multi-node AsterixDB cluster by opening the master node
+     listed in `conf/inventory` at port `19001` (which can be customized in `conf/instance/cc.conf`)
+     in your browser.
+
+  * If you want to stop the the multi-node AsterixDB cluster, run the following script:
+
+        $ bin/stop.sh
+
+  * If you want to remove the binary on all nodes, run the following script:
+
+        $ bin/erase.sh
diff --git a/asterixdb/asterix-doc/src/main/installation/ansible_title.md b/asterixdb/asterix-doc/src/main/installation/ansible_title.md
new file mode 100644
index 0000000..307580a
--- /dev/null
+++ b/asterixdb/asterix-doc/src/main/installation/ansible_title.md
@@ -0,0 +1,24 @@
+<!--
+ ! Licensed to the Apache Software Foundation (ASF) under one
+ ! or more contributor license agreements.  See the NOTICE file
+ ! distributed with this work for additional information
+ ! regarding copyright ownership.  The ASF licenses this file
+ ! to you 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.
+ !-->
+
+* [Introduction](#Introduction)
+* [Prerequisites](#Prerequisites)
+* [Cluster Configuration](#config)
+* [Cluster Lifecycle Management](#lifecycle)
+
diff --git a/asterixdb/asterix-doc/src/main/installation/aws.md b/asterixdb/asterix-doc/src/main/installation/aws.md
new file mode 100644
index 0000000..8b6602b
--- /dev/null
+++ b/asterixdb/asterix-doc/src/main/installation/aws.md
@@ -0,0 +1,192 @@
+<!--
+ ! Licensed to the Apache Software Foundation (ASF) under one
+ ! or more contributor license agreements.  See the NOTICE file
+ ! distributed with this work for additional information
+ ! regarding copyright ownership.  The ASF licenses this file
+ ! to you 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.
+ !-->
+
+## <a id="Introduction">Introduction</a>
+   Note that you can always manually launch a number of Amazon Web Services EC2 instances and then run the
+   Ansible cluster installation scripts as described [here](ansible.html) separately to manage the
+   lifecycle of an AsterixDB cluster on those EC2 instances.
+
+   However, via this installation option, we provide a combo solution for automating both AWS EC2
+   and AsterixDB, where you can run only one script to deploy, start, stop, and terminate
+   an AsterixDB cluster on AWS.
+
+## <a id="Prerequisites">Prerequisites</a>
+  *  Supported operating systems for the client: **Linux** and **MacOS**
+
+  *  Supported operating systems for Amazon Web Services instances: **Linux**
+
+  *  Install pip on your client machine:
+
+     CentOS
+
+        $ sudo yum install python-pip
+
+     Ubuntu
+
+        $ sudo apt-get install python-pip
+
+     macOS
+
+        $ brew install pip
+
+  *  Install Ansible, boto, and boto3 on your client machine:
+
+        $ pip install ansible
+        $ pip install boto
+        $ pip install boto3
+
+     Note that you might need `sudo` depending on your system configuration.
+
+     **Make sure that the version of Ansible is no less than 2.2.1.0**:
+
+        $ ansible --version
+        ansible 2.2.1.0
+
+  *  Download the AsterixDB distribution package, unzip it, navigate to `opt/aws/`
+
+        $ cd opt/aws
+
+     The following files and directories are in the directory `opt/aws`:
+
+        README  bin  conf  yaml
+
+     `bin` contains scripts that start and terminate an AWS-based cluster instance, according to the configuration
+     specified in files under `conf`, and `yaml` contains internal Ansible scripts that the shell scripts in `bin` use.
+
+  *  Create an AWS account and an IAM user.
+
+     Set up a security group that you'd like to use for your AWS cluster.
+     **The security group should at least allow all TCP connections from anywhere.**
+     Provide the name of the security group as the value for the `group` field in `conf/aws_settings.yml`.
+
+  *  Retrieve your AWS EC2 key pair name and use that as the `keypair` in `conf/aws_settings.yml`;
+
+     retrieve your AWS IAM `access key ID` and use that as the `access_key_id` in `conf/aws_settings.yml`;
+
+     retrieve your AWS IAM `secret access key` and use that as the `secret_access_key` in `conf/aws_settings.yml`.
+
+     Note that you can only read or download `access key ID` and `secret access key` once from your AWS console.
+     If you forget them, you have to create new keys and delete the old ones.
+
+  *  Configure your ssh setting by editing `~/.ssh/config` and adding the following entry:
+
+        Host *.amazonaws.com
+              IdentityFile <path_of_private_key>
+
+     Note that \<path_of_private_key\> should be replaced by the path to the file that stores the private key for the
+     key pair that you uploaded to AWS and used in `conf/aws_settings`. For example:
+
+        Host *.amazonaws.com
+              IdentityFile ~/.ssh/id_rsa
+
+### <a id="config">Cluster Configuration</a>
+  * **AWS settings**.  Edit `conf/instance_settings.yml`. The meaning of each parameter is listed as follows:
+
+        # The OS image id for ec2 instances.
+        image: ami-76fa4116
+
+        # The data center region for ec2 instances.
+        region: us-west-2
+
+        # The tag for each ec2 machine. Use different tags for isolation.
+        tag: scale_test
+
+        # The name of a security group that appears in your AWS console.
+        group: default
+
+        # The name of a key pair that appears in your AWS console.
+        keypair: <to be filled>
+
+        # The AWS access key id for your IAM user.
+        access_key_id: <to be filled>
+
+        # The AWS secret key for your IAM user.
+        secret_access_key: <to be filled>
+
+        # The AWS instance type. A full list of available types are listed at:
+        # https://aws.amazon.com/ec2/instance-types/
+        instance_type: t2.micro
+
+        # The number of ec2 instances that construct a cluster.
+        count: 3
+
+        # The user name.
+        user: ec2-user
+
+        # Whether to reuse one slave machine to host the master process.
+        cc_on_nc: false
+
+      **As described in [prerequisites](#Prerequisites), the following parameters must be customized:**
+
+        # The tag for each ec2 machine. Use different tags for isolation.
+        tag: scale_test
+
+        # The name of a security group that appears in your AWS console.
+        group: default
+
+        # The name of a key pair that appears in your AWS console.
+        keypair: <to be filled>
+
+        # The AWS access key id for your IAM user.
+        access_key_id: <to be filled>
+
+        # The AWS secrety key for your IAM user.
+        secret_access_key: <to be filled>
+
+  *  **Remote working directories**. Edit `conf/instance_settings.yml` to change the instance binary directories
+     when necessary. By default, the binary directory will be under the home directory (as the value of
+     Ansible builtin variable ansible_env.HOME) of the ssh user account on each node.
+
+        # The parent directory for the working directory.
+        basedir: "{{ ansible_env.HOME }}"
+
+        # The working directory.
+        binarydir: "{{ basedir }}/{{ product }}"
+
+
+### <a id="lifecycle">Cluster Lifecycle Management</a>
+  *  Allocate AWS EC2 nodes (the number of nodes is specified in `conf/instance_settings.yml`)
+     and deploy the binary to all allocated EC2 nodes:
+
+        bin/deploy.sh
+
+  *  Before starting the AsterixDB cluster, you the instance configuration file `conf/instance/cc.conf`
+     can be modified with the exception of the IP addresses/DNS names which are are generated and cannot
+     be changed. All available parameters and their usage can be found [here](ncservice.html#Parameters).
+
+  *  Launch your AsterixDB cluster on EC2:
+
+        bin/start.sh
+
+     Now you can use the multi-node AsterixDB cluster on EC2 by by opening the master node
+     listed in `conf/instance/inventory` at port `19001` (which can be customized in `conf/instance/cc.conf`)
+     in your browser.
+
+  *  If you want to stop the AWS-based AsterixDB cluster, run the following script:
+
+        bin/stop.sh
+
+     Note that this only stops AsterixDB but does not stop the EC2 nodes.
+
+  *  If you want to terminate the EC2 nodes that run the AsterixDB cluster, run the following script:
+
+        bin/terminate.sh
+
+     **Note that it will destroy everything in the AsterixDB cluster you installed and terminate all EC2 nodes
+     for the cluster.**
diff --git a/asterixdb/asterix-doc/src/main/installation/aws_title.md b/asterixdb/asterix-doc/src/main/installation/aws_title.md
new file mode 100644
index 0000000..abf01c9
--- /dev/null
+++ b/asterixdb/asterix-doc/src/main/installation/aws_title.md
@@ -0,0 +1,23 @@
+<!--
+ ! Licensed to the Apache Software Foundation (ASF) under one
+ ! or more contributor license agreements.  See the NOTICE file
+ ! distributed with this work for additional information
+ ! regarding copyright ownership.  The ASF licenses this file
+ ! to you 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.
+ !-->
+
+* [Introduction](#Introduction)
+* [Prerequisites](#Prerequisites)
+* [Cluster Configuration](#config)
+* [Cluster Lifecycle Management](#lifecycle)
diff --git a/asterixdb/asterix-doc/src/site/markdown/ansible.md b/asterixdb/asterix-doc/src/site/markdown/ansible.md
deleted file mode 100644
index fa3f483..0000000
--- a/asterixdb/asterix-doc/src/site/markdown/ansible.md
+++ /dev/null
@@ -1,136 +0,0 @@
-<!--
- ! Licensed to the Apache Software Foundation (ASF) under one
- ! or more contributor license agreements.  See the NOTICE file
- ! distributed with this work for additional information
- ! regarding copyright ownership.  The ASF licenses this file
- ! to you 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.
- !-->
-
-* [Introduction](#Introduction)
-* [Prerequisites](#Prerequisites)
-* [Configuration and parameters](#config)
-* [Manage the lifecycle of your instance](#lifecycle)
-
-## <a id="Introduction">Introduction</a>
-This installation option wraps the basic, low-level installation binaries described in the [NCService
-installation option](ncservice.html), and provides several wrapped [Ansible](https://www.ansible.com/)-based
-scripts to deploy, start, stop, and erase an AsterixDB instance on a multi-node cluster without requiring
-users to interact with each individual node in the cluster.
-
-## <a id="Prerequisites">Prerequisites</a>
-  *  Supported operating systems: **Linux** and **MacOS**
-
-  *  Install pip on your client machine:
-
-         CentOS: sudo yum install python-pip
-         Ubuntu: sudo apt-get install python-pip
-         MacOS:  brew install pip
-
-  *  Install Ansible, boto, and boto3 on your client machine:
-
-         pip install ansible
-         pip install boto
-         pip install boto3
-
-     **Make sure that the version of Ansible is no less than 2.2.1.0.**
-
-  *  Download a released [simple server package](http://asterixdb.apache.org/download.html).
-
-     Alternatively, you can follow the [instruction](https://github.com/apache/asterixdb#build-from-source) to
-     build from source.
-
-  *  In the extracted directory from the `simple server package`, navigate to `opt/ansible/`
-
-         $cd opt/ansible
-
-     The following files and directories are in the directory `opt/ansible`:
-
-         README  bin  conf  yaml
-
-     `bin` contains scripts that deploy, start, stop and erase a multi-node AsterixDB instance, according to
-     the configuration specified in files under `conf/`. `yaml` contains internal Ansible scripts that the shell
-     scripts in `bin` use.
-
-
-## <a id="config">Configuration and parameters</a>
-  *  **Parameters**. Edit the instance configuration file `conf/cc.conf` when necessary.
-     You can add/update whatever parameters in the **[common]** and **[nc]** sections (except IPs and ports).
-     For example:
-
-         [common]
-         log.level=INFO
-
-         [nc]
-         txn.log.dir=txnlog
-         iodevices=iodevice
-         command=asterixnc
-
-     More parameters and their usage can be found [here](ncservice.html#Parameters).
-     Note that with this installation option, all parameters in the **[cc]** and **[ncservice]**
-     section will use defaults and cannot be changed.
-
-
-  *  **Nodes and account**. Edit the inventory file `conf/inventory` when necessary.
-     You mostly only need to sepecify the node DNS names (or IPs) for the cluster controller, i.e., the master node,
-     in the **[cc]** section, and node controllers, i.e., slave nodes, in the **[ncs]** section.
-     The following example configures a cluster with two slave nodes (172.0.1.11 and 172.0.1.12) and
-     one master node (172.0.1.10).
-
-         [cc]
-         172.0.1.10
-
-         [ncs]
-         172.0.1.11
-         172.0.1.12
-
-     **Configure passwordless ssh from your current client that runs the scripts to all nodes listed
-     in `conf/inventory`.**
-     If the ssh user account for target machines is different from your current username, please uncomment
-     and edit the following two lines:
-
-         ;[all:vars]
-         ;ansible_ssh_user=<fill with your ssh account username>
-
-     If you want to specify advanced Ansible builtin variables, please refer to the
-     [Ansible documentation](http://docs.ansible.com/ansible/intro_inventory.html).
-
-  *  **Remote working directories**. Edit `conf/instance_settings.yml` to change the instance binary directories
-     when necessary. By default, the binary directory will be under the home directory (as the value of
-     Ansible builtin variable ansible_env.HOME) of the ssh user account on each node.
-
-         # The parent directory for the working directory.
-         basedir: "{{ ansible_env.HOME }}"
-
-         # The working directory.
-         binarydir: "{{ basedir }}/{{ product }}"
-
-
-## <a id="lifecycle">Manage the lifecycle of your instance</a>
-  *  Deploy the AsterixDB binary to all nodes:
-
-         bin/deploy.sh
-
-  *  Launch your cluster instance:
-
-         bin/start.sh
-
-     Now you can use the multi-node AsterixDB instance.
-
-  * If you want to stop the the multi-node AsterixDB instance, run the following script:
-
-         bin/stop.sh
-
-  * If you want to remove the AsterixDB binary on all nodes, run the following script:
-
-         bin/erase.sh
diff --git a/asterixdb/asterix-doc/src/site/markdown/aws.md b/asterixdb/asterix-doc/src/site/markdown/aws.md
deleted file mode 100644
index 272beb0..0000000
--- a/asterixdb/asterix-doc/src/site/markdown/aws.md
+++ /dev/null
@@ -1,168 +0,0 @@
-<!--
- ! Licensed to the Apache Software Foundation (ASF) under one
- ! or more contributor license agreements.  See the NOTICE file
- ! distributed with this work for additional information
- ! regarding copyright ownership.  The ASF licenses this file
- ! to you 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.
- !-->
-
-* [Introduction](#Introduction)
-* [Prerequisites](#Prerequisites)
-* [Configuration](#config)
-* [Manage the lifecycle of your instance](#lifecycle)
-
-## <a id="Introduction">Introduction</a>
-   Note that you can always manually launch a number of Amazon Web Services EC2 instances and then run the
-   Ansible cluster installation scripts as described [here](ansible.html) separately to manage the
-   lifecycle of an AsterixDB instance on those EC2 instances.
-
-   However, via this installation option, we provide a combo solution for automating both AWS EC2
-   and AsterixDB, where you can run only one script to start/stop an AsterixDB instance on AWS.
-
-## <a id="Prerequisites">Prerequisites</a>
-  *  Supported operating systems for the client: **Linux** and **MacOS**
-
-  *  Supported operating systems for Amazon Web Services instances: **Linux**
-
-  *  Install pip on your client machine:
-
-        CentOS: sudo yum install python-pip
-        Ubuntu: sudo apt-get install python-pip
-        MacOS:  brew install pip
-
-  *  Install Ansible, boto, and boto3 on your client machine:
-
-        pip install ansible
-        pip install boto
-        pip install boto3
-
-     **Make sure that the version of Ansible is no less than 2.2.1.0.**
-
-  *  Download a released [simple server package](http://asterixdb.apache.org/download.html).
-
-     Alternatively, you can follow the [instruction](https://github.com/apache/asterixdb#build-from-source) to
-     build from source.
-
-  *  In the extracted directory from the `simple server package`, navigate to `opt/aws/`
-
-        $cd opt/aws
-
-     The following files and directories are in the directory `opt/aws`:
-
-        README  bin  conf  yaml
-
-     `bin` contains scripts that start and terminate an AWS-based cluster instance, according to the configuration
-     specified in files under `conf/`. `yaml` contains internal Ansible scripts that the shell scripts in `bin` use.
-
-  *  Create an AWS account and an IAM user.
-
-     Set up a security group that you'd like to use for your AWS cluster.
-     **The security group should at least allow all TCP connection from anywhere.**
-     Fill `group` in `conf/aws_settings.yml` by the name of the security group.
-
-  *  Retrieve your AWS EC2 key pair name and fill that for `keypair` `conf/aws_settings.yml`;
-
-     retrieve your AWS IAM `access key ID` and fill that for `access_key_id` in `conf/aws_settings.yml`;
-
-     retrieve your AWS IAM `secret access key` and fill that for `secret_access_key` in `conf/aws_settings.yml`.
-
-     Note that you can only read or download `access key ID` and `secret access key` once from your AWS console.
-     If you forget them, you have to create new keys again and delete the old ones.
-
-  *  Configure your ssh setting by editing `~/.ssh/config` and adding the following entry:
-
-        Host *.amazonaws.com
-              IdentityFile <path_of_private_key>
-
-     Note that \<path_of_private_key\> should be replaced by the path to the file that stores the private key for the
-     key pair that you uploaded to AWS and used in `conf/aws_settings`. For example:
-
-        Host *.amazonaws.com
-              IdentityFile ~/.ssh/id_rsa
-
-### <a id="config">Configuration</a>
-  * **AWS settings**.  Edit conf/instance_settings.yml. The meaning of each parameter is listed as follows:
-
-        # The OS image id for ec2 instances.
-        image: ami-76fa4116
-
-        # The data center region for ec2 instances.
-        region: us-west-2
-
-        # The tag for each ec2 machine.
-        tag: scale_test
-
-        # The name of a security group that appears in your AWS console.
-        group: default
-
-        # The name of a key pair that appears in your AWS console.
-        keypair: <to be filled>
-
-        # The AWS access key id for your IAM user.
-        access_key_id: <to be filled>
-
-        # The AWS secrety key for your IAM user.
-        secret_access_key: <to be filled>
-
-        # The AWS instance type. A full list of available types are listed at:
-        # https://aws.amazon.com/ec2/instance-types/
-        instance_type: t2.micro
-
-        # The number of ec2 instances that construct a cluster.
-        count: 3
-
-        # The user name.
-        user: ec2-user
-
-        # Whether to reuse one nc machine to host cc.
-        cc_on_nc: false
-
-      **As described in [prerequisites](#Prerequisites), the following parameters must be customized:**
-
-        # The name of a security group that appears in your AWS console.
-        group: default
-
-        # The name of a key pair that appears in your AWS console.
-        keypair: <to be filled>
-
-        # The AWS access key id for your IAM user.
-        access_key_id: <to be filled>
-
-        # The AWS secrety key for your IAM user.
-        secret_access_key: <to be filled>
-
-  *  **Remote working directories**. Edit conf/instance_settings.yml to change the instance binary directories
-     when necessary. By default, the binary directory will be under the home directory (as the value of
-     Ansible builtin variable ansible_env.HOME) of the ssh user account on each node.
-
-        # The parent directory for the working directory.
-        basedir: "{{ ansible_env.HOME }}"
-
-        # The working directory.
-        binarydir: "{{ basedir }}/{{ product }}"
-
-
-### <a id="lifecycle">Manage the lifecycle of your instance</a>
-  * Start an AWS-based AsterixDB cluster:
-
-        bin/start.sh
-
-     Now you can use the cluster instance through the public IP or DNS name of the master node.
-
-  * If you want to terminate the AsterixDB instance, run the following script:
-
-        bin/stop.sh
-
-    **Note that it will destroy everything in the AsterixDB instance you installed and terminate all AWS nodes
-    for the cluster.**