

# Create, Upload, and Deploy the Application
<a name="ex-create-app"></a>

First, create a WordPress application bundle, and then use the CodeDeploy CTs to create and deploy the application.

1. Download WordPress, extract the files and create a ./scripts directory.

   Linux command:

   ```
   wget https://github.com/WordPress/WordPress/archive/master.zip
   ```

   Windows: Paste `https://github.com/WordPress/WordPress/archive/master.zip` into a browser window and download the zip file.

   Create a temporary directory in which to assemble the package.

   Linux:

   ```
   mkdir /tmp/WordPress
   ```

   Windows: Create a "WordPress" directory, you will use the directory path later.

1. Extract the WordPress source to the "WordPress" directory and create a ./scripts directory.

   Linux:

   ```
   unzip master.zip -d /tmp/WordPress_Temp
   cp -paf /tmp/WordPress_Temp/WordPress-master/* /tmp/WordPress
   rm -rf /tmp/WordPress_Temp
   rm -f master
   cd /tmp/WordPress
   mkdir scripts
   ```

   Windows: Go to the "WordPress" directory that you created and create a "scripts" directory there.

   If you are in a Windows environment, be sure to set the break type for the script files to Unix (LF). In Notepad \+\+, this is an option at the bottom right of the window.

1. Create the CodeDeploy **appspec.yml** file, in the WordPress directory (if copying the example, check the indentation, each space counts). IMPORTANT: Ensure that the "source" path is correct for copying the WordPress files (in this case, in your WordPress directory) to the expected destination (/var/www/html/WordPress). In the example, the appspec.yml file is in the directory with the WordPress files, so only "/" is needed. Also, even if you used a RHEL AMI for your Auto Scaling group, leave the "os: linux" line as-is. Example appspec.yml file:

   ```
   version: 0.0
   os: linux
   files:
     - source: /
       destination: /var/www/html/WordPress
   hooks:
     BeforeInstall:
       - location: scripts/install_dependencies.sh
         timeout: 300
         runas: root
     AfterInstall:
       - location: scripts/config_wordpress.sh
         timeout: 300
         runas: root
     ApplicationStart:
       - location: scripts/start_server.sh
         timeout: 300
         runas: root
     ApplicationStop:
       - location: scripts/stop_server.sh
         timeout: 300
         runas: root
   ```

1. Create bash file scripts in the WordPress ./scripts directory.

   First, create `config_wordpress.sh` with the following content (if you prefer, you can edit the wp-config.php file directly).
**Note**  
Replace {{DBName}} with the value given in the HA Stack RFC (for example, `wordpress`).  
Replace {{DB\_MasterUsername}} with the `MasterUsername` value given in the HA Stack RFC (for example, `admin`).  
Replace {{DB\_MasterUserPassword}} with the `MasterUserPassword` value given in the HA Stack RFC (for example, `p4ssw0rd`).  
Replace {{DB\_ENDPOINT}} with the endpoint DNS name in the execution outputs of the HA Stack RFC (for example, `srt1cz23n45sfg.clgvd67uvydk.us-east-1.rds.amazonaws.com`). You can find this with the [GetRfc](https://docs.aws.amazon.com/managedservices/latest/ApiReference-cm/API_GetRfc.html) operation (CLI: get-rfc --rfc-id RFC\_ID) or in the AMS Console RFC details page for the HA Stack RFC that you previously submitted.

   ```
   #!/bin/bash
   chmod -R 755 /var/www/html/WordPress
   cp /var/www/html/WordPress/wp-config-sample.php /var/www/html/WordPress/wp-config.php
   cd /var/www/html/WordPress
   sed -i "s/database_name_here/{{DBName}}/g" wp-config.php
   sed -i "s/username_here/{{DB_MasterUsername}}/g" wp-config.php
   sed -i "s/password_here/{{DB_MasterUserPassword}}/g" wp-config.php
   sed -i "s/localhost/{{DB_ENDPOINT}}/g" wp-config.php
   ```

1. In the same directory create `install_dependencies.sh` with the following content:

   ```
   #!/bin/bash
   yum install -y php
   yum install -y php-mysql
   yum install -y mysql
   service httpd restart
   ```
**Note**  
HTTPS is installed as part of the user data at launch in order to allow health checks to work from the start.

1. In the same directory create `start_server.sh` with the following content:
   + For Amazon Linux instances, use this:

     ```
     #!/bin/bash
     service httpd start
     ```
   + For RHEL instances, use this (the extra commands are policies that allow SELINUX to accept WordPress):

     ```
     #!/bin/bash
     setsebool -P  httpd_can_network_connect_db 1
     setsebool -P  httpd_can_network_connect 1
     chcon -t httpd_sys_rw_content_t /var/www/html/WordPress/wp-content -R
     restorecon -Rv /var/www/html
     service httpd start
     ```

1. In the same directory create `stop_server.sh` with the following content:

   ```
   #!/bin/bash
   service httpd stop
   ```

1. Create the zip bundle.

   Linux:

   ```
   $ cd /tmp/WordPress
   $ zip -r wordpress.zip .
   ```

   Windows: Go to your "WordPress" directory and select all of the files and create a zip file, be sure to name it wordpress.zip.

1. Upload the application bundle to the S3 bucket.

   The bundle needs to be in place in order to continue deploying the stack. 

   You automatically have access to any S3 bucket instance that you create. You can access it through your bastions, or through the S3 console, and upload the WordPress bundle with drag-and-drop or browsing to and selecting the zip file.

   You can also use the following command in a shell window; be sure that you have the correct path to the zip file:

   ```
   aws s3 cp wordpress.zip s3://BUCKET_NAME/
   ```

1. Deploy the WordPress application bundle.

   Gathering the following data before you begin will make the deployment go more quickly.

   REQUIRED DATA:
   + `VPC-ID`: This value determines where your S3 Bucket will be. Use the same VPC ID that you used previously.
   + `CodeDeployApplicationName` and `CodeDeployApplicationName`: The `ApplicationName` value you used in the HA 2-Tier Stack RFC set the CodeDeployApplicationName and the CodeDeployDeploymentGroupName. The example uses "WordPress" but you may have used a different value.
   + `S3Location`: For `S3Bucket`, use the `BucketName` that you previously created. The `S3BundleType` and `S3Key` are from the bundle that you put on your S3 store.

   1. Output the execution parameters JSON schema for the CodeDeploy application deploy CT to a JSON file named DeployCDAppParams.json.

      ```
      aws amscm get-change-type-version --change-type-id "ct-2edc3sd1sqmrb" --query "ChangeTypeVersion.ExecutionInputSchema" --output text > DeployCDAppParams.json
      ```

   1. Modify the schema as follows and save it as, you can delete and replace the contents.

      ```
      {
      "Description":                       "DeployWPCDApp",
      "VpcId":                             "{{VPC_ID}}",
      "Name":                              "WordPressCDAppDeploy",
      "TimeoutInMinutes":                  60,
      "Parameters":   {
          "CodeDeployApplicationName":                "{{WordPress}}",
          "CodeDeployDeploymentGroupName":            "{{WordPress}}",
          "CodeDeployIgnoreApplicationStopFailures":   false,
          "CodeDeployRevision": {
            "RevisionType": "S3",
            "S3Location": {
              "S3Bucket":     "{{BUCKET_NAME}}",
              "S3BundleType": "zip",
              "S3Key":        "wordpress.zip" }
              }
          }
      }
      ```

   1. Output the JSON template for CreateRfc to a file, in your current folder, named DeployCDAppRfc.json:

      ```
      aws amscm create-rfc --generate-cli-skeleton > DeployCDAppRfc.json
      ```

   1. Modify and save the DeployCDAppRfc.json file, you can delete and replace the contents. Note that `RequestedStartTime` and `RequestedEndTime` are now optional; excluding them creates an ASAP RFC that executes as soon as it is approved (which usually happens automatically). To submit a scheduled RFC, add those values.

      ```
      {
      "ChangeTypeVersion":    "1.0",
      "ChangeTypeId":         "ct-2edc3sd1sqmrb",
      "Title":                "CD-Deploy-For-WP-RFC"
      }
      ```

   1. Create the RFC, specifying the DeployCDAppRfc file and the DeployCDAppParams execution parameters file:

      ```
      aws amscm create-rfc --cli-input-json file://DeployCDAppRfc.json  --execution-parameters file://DeployCDAppParams.json
      ```

      You receive the RfcId of the new RFC in the response. Save the ID for subsequent steps.

   1. Submit the RFC:

      ```
      aws amscm submit-rfc --rfc-id {{RFC_ID}}
      ```

      If the RFC succeeds, you receive no output.

   1. To check RFC status, run

      ```
      aws amscm get-rfc --rfc-id {{RFC_ID}}
      ```