Add yamllint workflow

Signed-off-by: smoshiur1237 <moshiur.rahman@est.tech>

Author: smoshiur1237

.github/workflows/yamllint.yaml

@@ -0,0 +1,15 @@
+name: yamllint
+
+permissions:
+  contents: read
+
+on:
+  pull_request:
+    types: [ opened, edited, reopened, synchronize, ready_for_review ]
+
+jobs:
+  yamllint-check:
+    name: yaml-lint
+    uses: metal3-io/project-infra/.github/workflows/yamllint.yaml@main
+    with:
+      ref: ${{ github.event.pull_request.head.sha }}

.yamllint.yaml

@@ -0,0 +1,14 @@
+yaml-files:
+- '*.yaml'
+- '*.yml'
+- '.yamllint'
+
+rules:
+  trailing-spaces: enable
+  key-duplicates: enable
+  indentation:
+    spaces: 2
+    indent-sequences: false # Enforce k8s-style indentation
+    check-multi-line-strings: false
+  truthy:
+    allowed-values: [ 'true', 'false', 'yes', 'no', 'on' ]

_config.yml

@@ -16,11 +16,11 @@
 title: Metal³ - Metal Kubed
 email: non@none.com
 description: >- # this means to ignore newlines until "baseurl:"
-   Metal3.io aims to build on baremetal host provisioning technologies to provide a Kubernetes native API for managing bare metal hosts via a provisioning stack that is also running on Kubernetes.
+  Metal3.io aims to build on baremetal host provisioning technologies to provide a Kubernetes native API for managing bare metal hosts via a provisioning stack that is also running on Kubernetes.
 baseurl: "" # the subpath of your site, e.g. /blog
 url: "https://metal3.io" # the base hostname & protocol for your site, e.g. http://example.com
 twitter_username: metal3_io
-github_username:  metal3-io
+github_username: metal3-io
 type: website
 image: /assets/images/metal3logo.png
 
@@ -39,11 +39,11 @@ kramdown:
       start_line: 1
 theme: minima
 plugins:
-  - premonition
-  - jekyll-feed
-  - jekyll-paginate
-  - jekyll-redirect-from
-  - jekyll-sitemap
+- premonition
+- jekyll-feed
+- jekyll-paginate
+- jekyll-redirect-from
+- jekyll-sitemap
 
 paginate: 5
 paginate_path: "/blog/page:num"
@@ -55,12 +55,10 @@ collections:
     output: true
     permalink: /:collection/:path
 
-
 sass:
   sass_dir: _sass
   style: compressed
 
-
 # Exclude from processing.
 # The following items will not be processed, by default. Create a custom list
 # to override the default setting.
@@ -74,8 +72,8 @@ sass:
 #   - vendor/ruby/
 
 exclude:
-  - GUIDELINES.md
-  - README.md
-  - node_modules
+- GUIDELINES.md
+- README.md
+- node_modules
 
 permalink: /blog/:year/:month/:day/:title:output_ext

_posts/2020-06-18-Metal3-dev-env-BareMetal-Cluster-Deployment.md

@@ -246,7 +246,7 @@ spec:
   kubeadmConfigSpec:
     files:
     - content: |
-        [....]
+      [....]
   replicas: 1
   version: v1.18.0
 status:

_posts/2020-07-06-IP_address_manager.md

@@ -70,12 +70,12 @@ metadata:
 spec:
   clusterName: cluster1
   pools:
-    - start: 192.168.0.10
-      end: 192.168.0.30
-      prefix: 25
-      gateway: 192.168.0.1
-    - subnet: 192.168.1.1/26
-    - subnet: 192.168.1.128/25
+  - start: 192.168.0.10
+    end: 192.168.0.30
+    prefix: 25
+    gateway: 192.168.0.1
+  - subnet: 192.168.1.1/26
+  - subnet: 192.168.1.128/25
   prefix: 24
   gateway: 192.168.1.1
   preAllocations:
@@ -92,11 +92,11 @@ metadata:
 spec:
   clusterName: cluster1
   pools:
-    - start: 2001:0db8:85a3:0000:0000:8a2e::10
-      end: 2001:0db8:85a3:0000:0000:8a2e:ffff:fff0
-      prefix: 96
-      gateway: 12001:0db8:85a3:0000:0000:8a2e::1
-    - subnet: 2001:0db8:85a3:0000:0000:8a2d::/96
+  - start: 2001:0db8:85a3:0000:0000:8a2e::10
+    end: 2001:0db8:85a3:0000:0000:8a2e:ffff:fff0
+    prefix: 96
+    gateway: 12001:0db8:85a3:0000:0000:8a2e::1
+  - subnet: 2001:0db8:85a3:0000:0000:8a2d::/96
   prefix: 96
   gateway: 2001:0db8:85a3:0000:0000:8a2d::1
 ```
@@ -152,12 +152,12 @@ metadata:
 spec:
   clusterName: cluster1
   pools:
-    - start: 192.168.0.10
-      end: 192.168.0.30
-      prefix: 25
-      gateway: 192.168.0.1
-    - subnet: 192.168.1.1/26
-    - subnet: 192.168.1.128/25
+  - start: 192.168.0.10
+    end: 192.168.0.30
+    prefix: 25
+    gateway: 192.168.0.1
+  - subnet: 192.168.1.1/26
+  - subnet: 192.168.1.128/25
   prefix: 24
   gateway: 192.168.1.1
   preAllocations: