fix(ci): split rule groups into seperate files (#368)

- mitigate an issue that command line is too long for
  liquid-cli

.github/workflows/test.yml

@@ -25,13 +25,27 @@ jobs:
         run: |
           gem install liquid-cli
           cat _data/rules.yml | yq -I 0 -o json > _data/rules.json
-          cat test/template.yml | liquid "$(< _data/rules.json)" > test/rules.yml
+
+          for service in $(cat _data/rules.json | jq -r '.groups[].services[] | @base64'); do
+            subdir=test/rules/$(echo ${service} | base64 --decode | jq -r '.name | ascii_downcase | split(" ") | join("-")')
+            mkdir -p "${subdir}"
+
+            # groupName=$(echo "{% assign groupName = name | split: ' ' %}{% capture groupNameCamelcase %}{% for word in groupName %}{{ word | capitalize }} {% endfor %}{% endcapture %} {{ groupNameCamelcase | remove: ' ' | remove: '-' }}" | liquid $(echo ${service} | base64 --decode | jq -r '.name | ascii_downcase | split(" ") | join("-")'))
+    
+            for exporter in $(echo ${service} | base64 --decode | jq -r '.exporters[] | @base64'); do
+              exporterName=$(echo ${exporter} | base64 --decode | jq -r '.slug')
+              cat dist/template.yml | liquid "$(echo ${exporter} | base64 --decode)" > ${subdir}/${exporterName}.yml
+              echo ${subdir}/${exporterName}.yml
+            done
+          done
+
+          rm _data/rules.json
 
       - name: Check Prometheus alert rules
         uses: peimanja/promtool-github-actions@master
         with:
           promtool_actions_subcommand: 'rules'
-          promtool_actions_files: 'test/rules.yml'
+          promtool_actions_files: 'test/rules/*/*.yml'
           promtool_actions_comment: true
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -3,4 +3,4 @@ _site/
 .jekyll-cache/
 .jekyll-metadata
 _data/rules.json
-test/rules.yml
+test/rules/

test/README.md

@@ -1,17 +0,0 @@
-
-Since some rules can be duplicated (multiple exporters), I added a prefix to rule name.
-
-Error:
-
-```
-$ promtool check rules test/rules.yml
-Checking rules.yml
-29 duplicate rule(s) found.
-Metric: CassandraClientRequestReadFailure
-Label(s):
-        severity: critical
-
-[...]
-
-Might cause inconsistency while recording expressions.
-```

test/template.yml

@@ -1,18 +0,0 @@
-groups:
-
-- name: AllRules
-  rules:
-{% for group in groups %}{% assign groupIndex = forloop.index %}{% for service in group.services %}{% assign serviceIndex = forloop.index %}{% for exporter in service.exporters %}{% assign exporterIndex = forloop.index %}{% for rule in exporter.rules %}
-{% assign ruleName = rule.name | split: ' ' %}{% capture ruleNameCamelcase %}{% for word in ruleName %}{{ word | capitalize }} {% endfor %}{% endcapture %}
-
-    {% for comment in comments %}# {{ comment | strip }}
-    {% endfor %}- alert: {{ groupIndex }}_{{ serviceIndex }}_{{ exporterIndex }}_{{ ruleNameCamelcase | remove: ' ' }}
-      expr: '{{ rule.query }}'
-      for: {% if rule.for %}{{ rule.for }}{% else %}0m{% endif %}
-      labels:
-        severity: {{ rule.severity }}
-      annotations:
-        summary: {{ rule.name }} (instance {% raw %}{{ $labels.instance }}{% endraw %})
-        description: "{{ rule.description | replace: '"', '\"' }}\n  VALUE = {% raw %}{{ $value }}{% endraw %}\n  LABELS = {% raw %}{{ $labels }}{% endraw %}"
-
-{% endfor %}{% endfor %}{% endfor %}{% endfor %}