sign_app_rules_android.md

Application Signature

To build a release version of the application, it is necessary to sign the apk file.

To do this, follow these steps:

• Create a keystore.
• Set up the required Gradle tasks.
• Upload the keystore to your continuous integration/continuous delivery and deployment (CI/CD) automation software tool.
• Configure CI/CD in the project.

Creating a Keystore

The application signature will be a file in the *.jks format. The filename should follow the pattern: project_name_release.jks

To create the signature, you can refer to the official documentation.

You should also create a file named keystore_release.properties and place the following data in it:

storePassword=*myStorePassword*
keyPassword=*mykeyPassword*
keyAlias=*myKeyAlias*
storeFile=../keystore/*project_name*_release.jks

Warning

Important:

• Do not change the filename keystore_release.properties!
• These files need to be placed in the android/keystore directory.
• Storing them in the repository is prohibited.

To allow team members to locally build the release version, you should also share these files with them.

Configuring the Project to Work with Keystore

Next, you need to create a file named keystoreConfig.gradle in the keystore folder. You can copy it to your project.

Copy signinConfigs.gradle to your project. Make sure it contains the following:

release {
            apply from: '../keystore/keystoreConfig.gradle'

            keyAlias keystoreConfig.keyAlias
            keyPassword keystoreConfig.keyPassword
            storeFile file(keystoreConfig.storeFile)
            storePassword keystoreConfig.storePassword
        }

Uploading to Jenkins / Configuring CI in the Project

The two files obtained in the previous step, *.jks and *.properties, should be uploaded to Jenkins to support building the release version of the application through Continuous Integration (CI).

To upload the files to the system, contact the administrator.

Local Build of the Release Version

To build the release version of the application locally, you need to place the signed file in the keystore folder.