NXBT-3528: Use 2021.x Docker image instead of 11.x

Jenkinsfile

@@ -154,9 +154,9 @@ pipeline {
   }
 
   parameters {
-    string(name: 'NUXEO_VERSION', defaultValue: '11.x', description: 'Version of the Nuxeo server image, defaults to 11.x.')
+    string(name: 'NUXEO_VERSION', defaultValue: '2021.x', description: 'Version of the Nuxeo server image, defaults to 2021.x.')
     string(name: 'NUXEO_REPOSITORY', defaultValue: '', description: 'GitHub repository of the nuxeo project.')
-    string(name: 'NUXEO_SHA', defaultValue: '', description: 'Git commit sha of the nuxeo/nuxeo upstream build.')
+    string(name: 'NUXEO_SHA', defaultValue: '', description: 'Git commit sha of the nuxeo/lts/nuxeo upstream build.')
   }
 
   environment {
@@ -174,7 +174,7 @@ pipeline {
     KAFKA_CHART_VERSION = '11.8.8'
     NUXEO_CHART_NAME = 'nuxeo'
     NUXEO_CHART_VERSION = '~2.0.0'
-    NUXEO_DOCKER_REPOSITORY = "${isTriggered() ? DOCKER_REGISTRY : PUBLIC_DOCKER_REGISTRY}/nuxeo/nuxeo"
+    NUXEO_DOCKER_REPOSITORY = "${isTriggered() ? DOCKER_REGISTRY : PRIVATE_DOCKER_REGISTRY}/nuxeo/nuxeo"
     NUXEO_VERSION = "${params.NUXEO_VERSION}"
     HELM_VALUES_DIR = 'helm'
     NAMESPACE = "nuxeo-rest-api-tests-$BRANCH_NAME-$BUILD_NUMBER".toLowerCase()

README.md

@@ -6,7 +6,7 @@
 
 ## Purpose
 
-This project allows to validate the REST API versions that are supported in the [master branch](https://github.com/nuxeo/nuxeo) of the Nuxeo Platform.
+This project allows to validate the REST API versions that are supported in the [2021 branch](https://github.com/nuxeo/nuxeo-lts) of the Nuxeo Platform.
 
 For each REST API version, we need to guarantee the following assertion:
 
@@ -106,15 +106,15 @@ yarn format
 
 This set of tests is executed in a [multibranch pipeline](https://jenkins.platform.dev.nuxeo.com/job/nuxeo/job/rest-api-compatibility-tests/) against a Nuxeo server configured as following:
 
-- Docker image: `nuxeo/nuxeo:11.x`
+- Docker image: `docker-private.packages.nuxeo.com/nuxeo/nuxeo:2021.x`
 - MongoDB
 - Elasticsearch
 
 The build fails if at least one test fails.
 
-This job is also triggered by the [nuxeo/nuxeo](https://jenkins.platform.dev.nuxeo.com/job/nuxeo/job/nuxeo/) multibranch pipeline:
+This job is also triggered by the [nuxeo/lts/nuxeo](https://jenkins.platform.dev.nuxeo.com/job/nuxeo/job/lts/job/nuxeo/) multibranch pipeline:
 
 - On pull requests, to run the REST API tests against the Nuxeo image freshly built from the related branch, and set a GitHub status check on the pull request.
-- On the `master` branch, to run the REST API tests against the `nuxeo/nuxeo:11.x` image freshly built from the `master` branch.
+- On the `2021` branch, to run the REST API tests against the `docker-private.packages.nuxeo.com/nuxeo/nuxeo:2021.x` image freshly built from the `2021` branch.
 
 This adds a quality gate for the continuous delivery of the Nuxeo server.