add link checker to infrastructure manager

.github/workflows/daily-markdown-link-check.yaml

@@ -0,0 +1,18 @@
+name: Daily Markdown Link Check
+run-name: ${{github.event.pull_request.title}}
+on:
+    schedule:
+    # Run everyday at 5:00 AM
+    - cron: "0 5 * * *"
+jobs:
+  markdown-link-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: gaurav-nelson/github-action-markdown-link-check@v1
+        with:
+          use-quiet-mode: 'yes'  
+          use-verbose-mode: 'yes'
+          config-file: '.mlc.config.json'
+          folder-path: '.'
+          max-depth: -1

.github/workflows/pr-markdown-link-check.yaml

@@ -0,0 +1,17 @@
+name: PR Markdown Link Check
+run-name: ${{github.event.pull_request.title}}
+on: [ pull_request ]
+jobs:
+  markdown-link-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: gaurav-nelson/github-action-markdown-link-check@v1
+        with:
+          use-quiet-mode: 'yes'  
+          use-verbose-mode: 'yes'
+          config-file: '.mlc.config.json'
+          folder-path: '.'
+          max-depth: -1
+          check-modified-files-only: 'yes'
+          base-branch: '${{ github.base_ref }}'

mlc.config.json

@@ -0,0 +1,12 @@
+{
+    "replacementPatterns": [
+      {
+        "_comment": "a replacement rule for all the in-repository references",
+        "pattern": "^/",
+        "replacement": "{{BASEURL}}/"
+      }
+    ],
+    "timeout": "20s",
+    "retryCount": 5,
+    "fallbackRetryDelay": "30s"
+  }