Support using images with binaries pre-installed and use for smslabs CI (#166)

* use pre-installed image for smslabs

* use node-exporter which supports binaries pre-existing

* skip prometheus installs

* detect existing prometheus installs

* bump base image

* fix cluster name in CI

* allow overriding prometheus_skip_install

Author: sjpb

ansible/monitoring.yml

@@ -76,6 +76,18 @@
   hosts: prometheus
   tags: prometheus
   tasks:
+    - name: Check for existing prometheus binaries
+      stat:
+        path: /usr/local/bin/{{ item }}
+      register: prometheus_binaries
+      loop:
+        - prometheus
+        - promtool
+    - name: Skip prometheus install if prometheus binaries exist and prometheus_version not defined
+      # i.e. if prometheus_version isn't defined we don't care, so use what's already there
+      set_fact:
+        prometheus_skip_install: "{{ false if prometheus_version is defined else true }}" 
+      when: "{{ (prometheus_binaries.results | map(attribute='stat') | map(attribute='exists')) + [prometheus_skip_install is not defined] }}"
     - import_role:
         name: cloudalchemy.prometheus
 

environments/smslabs/builder.pkrvars.hcl

@@ -1,6 +1,6 @@
 flavor = "general.v1.tiny"
 networks = ["c245901d-6b84-4dc4-b02b-eec0fb6122b2"] # stackhpc-ci-geneve
-source_image_name = "Rocky-8-GenericCloud-8.5-20211114.2.x86_64"
+source_image_name = "openhpc-220413-1545.qcow2"
 ssh_keypair_name = "slurm-app-ci"
 security_groups = ["default", "SSH"]
 ssh_bastion_host = "185.45.78.150"

environments/smslabs/terraform/variables.tf

@@ -26,7 +26,7 @@ variable "control_node" {
     description = "Mapping {flavor: flavor_name, image: image_name_or_id }"
     default = {
         flavor: "general.v1.tiny"
-        image: "Rocky-8-GenericCloud-8.5-20211114.2.x86_64"
+        image: "openhpc-220413-1545.qcow2"
     }
 }
 
@@ -36,7 +36,7 @@ variable "login_nodes" {
   default = {
       login-0: {
         flavor: "general.v1.tiny"
-        image: "Rocky-8-GenericCloud-8.5-20211114.2.x86_64"
+        image: "openhpc-220413-1545.qcow2"
       }
     }
 }
@@ -47,7 +47,7 @@ variable "compute_types" {
     default = {
       small: {
           flavor: "general.v1.tiny"
-          image: "Rocky-8-GenericCloud-8.5-20211114.2.x86_64"
+          image: "openhpc-220413-1545.qcow2"
       }
     }
 }

requirements.yml

@@ -6,7 +6,7 @@ roles:
     version: v0.12.0
     name: stackhpc.openhpc
   - src: https://github.com/stackhpc/ansible-node-exporter.git
-    version: support-rhel-clones
+    version: feature/no-install
     name: cloudalchemy.node_exporter
   - src: cloudalchemy.blackbox-exporter
     version: 1.0.0