SRE-3435 build: Add SLES 15.7 testing

Jenkinsfile

@@ -350,7 +350,7 @@ pipeline {
                      defaultValue: true,
                      description: 'Run the Functional on EL 9 test stage')
         booleanParam(name: 'CI_FUNCTIONAL_leap15_TEST',
-                     defaultValue: false,
+                     defaultValue: true,
                      description: 'Run the Functional on Leap 15 test stage')
         booleanParam(name: 'CI_FUNCTIONAL_ubuntu20_TEST',
                      defaultValue: false,
@@ -938,6 +938,30 @@ pipeline {
                         }
                     } // post
                 } // stage('Functional on Leap 15')
+                stage('Functional on SLES 15') {
+                    when {
+                        beforeAgent true
+                        expression { !skipStage() }
+                    }
+                    agent {
+                        label vm9_label('Leap15')
+                    }
+                    steps {
+                        job_step_update(
+                            functionalTest(
+                                inst_repos: daosRepos(),
+                                inst_rpms: functionalPackages(1, next_version(), 'tests-internal') +
+                                    ' mercury-libfabric',
+                                test_function: 'runTestFunctionalV2',
+                                image_version: 'sles15.7'))
+                    }
+                    post {
+                        always {
+                            functionalTestPostV2()
+                            job_status_update()
+                        }
+                    } // post
+                } // stage('Functional on SLES 15')
                 stage('Functional on Ubuntu 20.04') {
                     when {
                         beforeAgent true

ci/parse_ci_envs.sh

@@ -22,6 +22,10 @@ if [ -n "${STAGE_NAME:?}" ]; then
       : "${TARGET:=centos9}"
       : "${REPO_SPEC:=el-9}"
       ;;
+    *SLES\ 15.7*|*sles15.7*)
+      : "${CHROOT_NAME:=sles-15-sp7-x86_64}"
+      : "${TARGET:=sles15.7}"
+      ;;
     *Leap\ 15.6*|*leap15.6*|*opensuse15.6*|*sles15.6*)
       : "${CHROOT_NAME:=opensuse-leap-15.5-x86_64}"
       : "${TARGET:=leap15.6}"