docs(terraform): replace getAppName with configuration (#574)

apps/docs/docs/how-to/terraform/create-new-service.md

@@ -77,10 +77,6 @@ import { RedisContainerConfig } from './interfaces';
 import { BackendContainer, MountPoint } from '@trxn/terraform-service-ecs';
 
 export class RedisContainer extends BackendContainer<RedisContainerConfig> {
-  protected getAppName(): string {
-    return 'redis';
-  }
-
   protected getPort(): number {
     return 6379;
   }
@@ -96,7 +92,7 @@ export class RedisContainer extends BackendContainer<RedisContainerConfig> {
 }
 ```
 
-This class is a subclass of `BackendContainer` and overrides the `getAppName` and `getPort` methods to return the values specific to a Redis container. It also defines a single mount point to a volume called `data`, which will be used to store persistent data for the Redis container.
+This class is a subclass of `BackendContainer` and overrides the `getPort` method to return the value specific to a Redis container. It also defines a single mount point to a volume called `data`, which will be used to store persistent data for the Redis container.
 
 ### Configuration and interface
 
@@ -112,6 +108,7 @@ import {
 export const REDIS_COMPONENT_DEFAULT_CONFIG: RedisComponentDefaultConfig = {
   ...SERVICE_COMPONENT_DEFAULT_CONFIG,
   containerConfig: {
+    imageName: 'redis',
     imageTag: 'alpine3.17',
     environments: {
       REDIS_PASSWORD: Secret(),

apps/docs/docs/how-to/terraform/ecs-components.md

@@ -28,9 +28,9 @@ The containers have two levels of properties. Properties, which are defined in t
 
 The `usePrivateImage` method allows the subclass to specify whether to use a private or public image for the container. If set to `true`, the image should be found on a public repositiory, such as DockerHub. If set to `false`, the image should be available on ECR and a deployment pipeline will be triggered every time a new image is pushed to this repository (accordingly to the image tag).
 
-The `getAppName` method returns the name of the image to use. If the container uses a private image, this is the name of a workspace’s application containing a `Dockerfile`. If the container uses a public image, this is the name of the image without the tag. For example `traefik` or `blacklabelops/volumerize`.
+The configuration `imageName` is the name of the image to use. If the container uses a private image, this is the name of a workspace’s application containing a `Dockerfile`. If the container uses a public image, this is the name of the image without the tag. For example `traefik` or `blacklabelops/volumerize`.
 
-As the image tag must be configurable between two environments, it is provided via the configuration of the container and not within the class.
+The configuration `imageTag` is also available to specify the tag of the image to use.
 
 ### Persistent volumes