CI boilerplate reduction (#34272)

* CI configuration boilerplate reduction and refactor

Configuration:
- New notation for list concatenation (prepend/append)
- New notation for string concatenation (prepend/append)
- Break out configuration files for: ci.yaml, cdash.yaml, view.yaml
- Spack CI section refactored to improve self-consistency and
composability
  - Scripts are now lists of lists and/or lists of strings
  - Job attributes are now listed under precedence ordered list that are
  composed/merged using Spack config merge rules.
  - "service-jobs" are identified explicitly rather than as a batch

CI:
- Consolidate common, platform, and architecture configurations for all CI stacks into composable configuration files
- Make padding consistent across all stacks (256)
- Merge all package -> runner mappings to be consistent across all
stacks

Unit Test:
- Refactor CI module unit-tests for refactor configuration

Docs:
- Add docs for new notations in configuration.rst
- Rewrite docs on CI pipelines to be consistent with refactored CI
workflow

* Script verbose environ, dev bootstrap

* Port #35409

1 files changed, 10 insertions, 0 deletions

diff --git a/share/spack/gitlab/cloud_pipelines/configs/config.yaml b/share/spack/gitlab/cloud_pipelines/configs/config.yaml
new file mode 100644
index 0000000000..bb0d502310
--- /dev/null
+++ b/share/spack/gitlab/cloud_pipelines/configs/config.yaml
@@ -0,0 +1,10 @@
+config:
+  build_jobs: 32
+  concretizer: clingo
+  db_lock_timeout: 120
+  install_tree:
+    root: /home/software/spack
+    padded_length: 256
+    projections:
+      all: '{architecture}/{compiler.name}-{compiler.version}/{name}-{version}-{hash}'
+