feature(gce_builder): update to use sct runner 1.8

* update gce_build to have versioned name for template and labels
* add docs part, on how to update the runner image

(cherry picked from commit 370abe1)

docs/sct-runners.md

@@ -22,3 +22,27 @@ hydra --execute-on-runner `cat sct_runner_ip` [Any hydra commands]
 hydra is syncing the whole SCT directory with rsync,
 try to make sure there's no huge files in SCT directory,
 because that would slow it down
+
+
+### process of updating sct runner images
+
+1. update code in sct_runner.py, give it a new version number
+2. Build all images
+    ```bash
+
+     ./sct.py create-runner-image -c aws -r eu-west-2 -z a
+
+    ./sct.py create-runner-image -c gce -r us-east1 -z a
+    SCT_GCE_PROJECT=gcp ./sct.py create-runner-image -c gce -r us-east1 -z a
+    SCT_GCE_PROJECT=gcp-local-ssd-latency ./sct.py create-runner-image -c gce -r us-east1 -z a
+
+    ./sct.py create-runner-image -c azure -r eastus -z a
+    ```
+3. update version on `aws_builder.py` and `gce_builder.py`
+4. build jenkins configuration with new sct runner image
+    ```bash
+    ./sct.py configure-jenkins-builders -c gce
+    ./sct.py configure-jenkins-builders -c aws
+    ```
+
+5. update `vars/getJenkinsLabels.groovy` with the new labels created in step 1

sdcm/utils/gce_builder.py

@@ -65,7 +65,7 @@
 instanceConfiguration.setRetentionTimeMinutesStr("6")
 instanceConfiguration.setLaunchTimeoutSecondsStr("300")
 instanceConfiguration.setRunAsUser("jenkins")
-instanceConfiguration.setSshConfiguration(SshConfiguration.builder().customPrivateKeyCredentialsId("6e17c350-0a47-4a59-b0b9-7e64f1c35a65").build())
+instanceConfiguration.setSshConfiguration(SshConfiguration.builder().customPrivateKeyCredentialsId("user-jenkins_scylla_test_id_ed25519.pem").build())
 
 gcpCloud.addConfiguration(instanceConfiguration)
 
@@ -88,10 +88,10 @@ class GceBuilder:
 
     It creates a launch template based on sct-runner image, and adds configuration needed in Jenkins to use it
     """
+    VERSION = 'v2'
 
-    def __init__(self, region: GceRegion, number=1):
+    def __init__(self, region: GceRegion):
         self.region = region
-        self.number = number
         self.jenkins_info = KeyStore().get_json("jenkins.json")
         self.runner = GceSctRunner(region_name=self.region.region_name,
                                    availability_zone="a")
@@ -102,11 +102,11 @@ def __init__(self, region: GceRegion, number=1):
     @cached_property
     def name(self):
         # example: gce-sct-project-1-us-east1-qa-builder
-        return f"gce-{self.region.project}-{self.region.region_name}-qa-builder"
+        return f"gce-{self.region.project}-{self.region.region_name}-qa-builder-{self.VERSION}"
 
     @cached_property
     def jenkins_labels(self):
-        return f"gcp-{self.region.project}-builders-{self.region.region_name}-template"
+        return f"gcp-{self.region.project}-builders-{self.region.region_name}-template-{self.VERSION}"
 
     def _add_cloud_configuration_to_jenkins(self):
         click.echo(f"{self.region.project}: {self.region.region_name}: add_cloud_configuration_to_jenkins")

vars/getJenkinsLabels.groovy

@@ -24,10 +24,10 @@ def call(String backend, String region=null, String datacenter=null, String loca
                           'aws-eu-central-1': 'aws-sct-builders-eu-central-1-v3-asg',
                           'aws-us-east-1' : 'aws-sct-builders-us-east-1-v3-asg',
                           'aws-us-west-2' : 'aws-sct-builders-us-west-2-v3-asg',
-                          'gce-us-east1': "${gcp_project}-builders-us-east1-template",
-                          'gce-us-west1': "${gcp_project}-builders-us-west1-template",
-                          'gce-us-central1': "${gcp_project}-builders-us-central1-template",
-                          'gce': "${gcp_project}-builders-us-east1-template",
+                          'gce-us-east1': "${gcp_project}-builders-us-east1-template-v2",
+                          'gce-us-west1': "${gcp_project}-builders-us-west1-template-v2",
+                          'gce-us-central1': "${gcp_project}-builders-us-central1-template-v2",
+                          'gce': "${gcp_project}-builders-us-east1-template-v2",
                           'aws': 'aws-sct-builders-eu-west-1-v3-asg',
                           'azure-eastus': 'aws-sct-builders-us-east-1-v3-asg']